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Before yesterdayKrebs on Security

Microsoft Patch Tuesday, March 2023 Edition

By BrianKrebs

Microsoft on Tuesday released updates to quash at least 74 security bugs in its Windows operating systems and software. Two of those flaws are already being actively attacked, including an especially severe weakness in Microsoft Outlook that can be exploited without any user interaction.

The Outlook vulnerability (CVE-2023-23397) affects all versions of Microsoft Outlook from 2013 to the newest. Microsoft said it has seen evidence that attackers are exploiting this flaw, which can be done without any user interaction by sending a booby-trapped email that triggers automatically when retrieved by the email server — before the email is even viewed in the Preview Pane.

While CVE-2023-23397 is labeled as an “Elevation of Privilege” vulnerability, that label doesn’t accurately reflect its severity, said Kevin Breen, director of cyber threat research at Immersive Labs.

Known as an NTLM relay attack, it allows an attacker to get someone’s NTLM hash [Windows account password] and use it in an attack commonly referred to as “Pass The Hash.”

“The vulnerability effectively lets the attacker authenticate as a trusted individual without having to know the person’s password,” Breen said. “This is on par with an attacker having a valid password with access to an organization’s systems.”

Security firm Rapid7 points out that this bug affects self-hosted versions of Outlook like Microsoft 365 Apps for Enterprise, but Microsoft-hosted online services like Microsoft 365 are not vulnerable.

The other zero-day flaw being actively exploited in the wild — CVE-2023-24880 — is a “Security Feature Bypass” in Windows SmartScreen, part of Microsoft’s slate of endpoint protection tools.

Patch management vendor Action1 notes that the exploit for this bug is low in complexity and requires no special privileges. But it does require some user interaction, and can’t be used to gain access to private information or privileges. However, the flaw can allow other malicious code to run without being detected by SmartScreen reputation checks.

Dustin Childs, head of threat awareness at Trend Micro’s Zero Day Initiative, said CVE-2023-24880 allows attackers to create files that would bypass Mark of the Web (MOTW) defenses.

“Protective measures like SmartScreen and Protected View in Microsoft Office rely on MOTW, so bypassing these makes it easier for threat actors to spread malware via crafted documents and other infected files that would otherwise be stopped by SmartScreen,” Childs said.

Seven other vulnerabilities Microsoft patched this week earned its most-dire “critical” severity label, meaning the updates address security holes that could be exploited to give the attacker full, remote control over a Windows host with little or no interaction from the user.

Also this week, Adobe released eight patches addressing a whopping 105 security holes across a variety of products, including Adobe Photoshop, Cold Fusion, Experience Manager, Dimension, Commerce, Magento, Substance 3D Stager, Cloud Desktop Application, and Illustrator.

For a more granular rundown on the updates released today, see the SANS Internet Storm Center roundup. If today’s updates cause any stability or usability issues in Windows, AskWoody.com will likely have the lowdown on that.

Please consider backing up your data and/or imaging your system before applying any updates. And feel free to sound off in the comments if you experience any problems as a result of these patches.

Highlights from the New U.S. Cybersecurity Strategy

By BrianKrebs

The Biden administration today issued its vision for beefing up the nation’s collective cybersecurity posture, including calls for legislation establishing liability for software products and services that are sold with little regard for security. The White House’s new national cybersecurity strategy also envisions a more active role by cloud providers and the U.S. military in disrupting cybercriminal infrastructure, and it names China as the single biggest cyber threat to U.S. interests.

The strategy says the White House will work with Congress and the private sector to develop legislation that would prevent companies from disavowing responsibility for the security of their software products or services.

Coupled with this stick would be a carrot: An as-yet-undefined “safe harbor framework” that would lay out what these companies could do to demonstrate that they are making cybersecurity a central concern of their design and operations.

“Any such legislation should prevent manufacturers and software publishers with market power from fully disclaiming liability by contract, and establish higher standards of care for software in specific high-risk scenarios,” the strategy explains. “To begin to shape standards of care for secure software development, the Administration will drive the development of an adaptable safe harbor framework to shield from liability companies that securely develop and maintain their software products and services.”

Brian Fox, chief technology officer and founder of the software supply chain security firm Sonatype, called the software liability push a landmark moment for the industry.

“Market forces are leading to a race to the bottom in certain industries, while contract law allows software vendors of all kinds to shield themselves from liability,” Fox said. “Regulations for other industries went through a similar transformation, and we saw a positive result — there’s now an expectation of appropriate due care, and accountability for those who fail to comply. Establishing the concept of safe harbors allows the industry to mature incrementally, leveling up security best practices in order to retain a liability shield, versus calling for sweeping reform and unrealistic outcomes as previous regulatory attempts have.”

THE MOST ACTIVE, PERSISTENT THREAT

In 2012 (approximately three national cyber strategies ago), then director of the U.S. National Security Agency (NSA) Keith Alexander made headlines when he remarked that years of successful cyber espionage campaigns from Chinese state-sponsored hackers represented “the greatest transfer of wealth in history.”

The document released today says the People’s Republic of China (PRC) “now presents the broadest, most active, and most persistent threat to both government and private sector networks,” and says China is “the only country with both the intent to reshape the international order and, increasingly, the economic, diplomatic, military, and technological power to do so.”

Many of the U.S. government’s efforts to restrain China’s technology prowess involve ongoing initiatives like the CHIPS Act, a new law signed by President Biden last year that sets aside more than $50 billion to expand U.S.-based semiconductor manufacturing and research and to make the U.S. less dependent on foreign suppliers; the National Artificial Intelligence Initiative; and the National Strategy to Secure 5G.

As the maker of most consumer gizmos with a computer chip inside, China is also the source of an incredible number of low-cost Internet of Things (IoT) devices that are not only poorly secured, but are probably more accurately described as insecure by design.

The Biden administration said it would continue its previously announced plans to develop a system of labeling that could be applied to various IoT products and give consumers some idea of how secure the products may be. But it remains unclear how those labels might apply to products made by companies outside of the United States.

FIGHTING BADNESS IN THE CLOUD

One could convincingly make the case that the world has witnessed yet another historic transfer of wealth and trade secrets over the past decade — in the form of ransomware and data ransom attacks by Russia-based cybercriminal syndicates, as well as Russian intelligence agency operations like the U.S. government-wide Solar Winds compromise.

On the ransomware front, the White House strategy seems to focus heavily on building the capability to disrupt the digital infrastructure used by adversaries that are threatening vital U.S. cyber interests. The document points to the 2021 takedown of the Emotet botnet — a cybercrime machine that was heavily used by multiple Russian ransomware groups — as a model for this activity, but says those disruptive operations need to happen faster and more often.

To that end, the Biden administration says it will expand the capacity of the National Cyber Investigative Joint Task Force (NCIJTF), the primary federal agency for coordinating cyber threat investigations across law enforcement agencies, the intelligence community, and the Department of Defense.

“To increase the volume and speed of these integrated disruption campaigns, the Federal Government must further develop technological and organizational platforms that enable continuous, coordinated operations,” the strategy observes. “The NCIJTF will expand its capacity to coordinate takedown and disruption campaigns with greater speed, scale, and frequency. Similarly, DoD and the Intelligence Community are committed to bringing to bear their full range of complementary authorities to disruption campaigns.”

The strategy anticipates the U.S. government working more closely with cloud and other Internet infrastructure providers to quickly identify malicious use of U.S.-based infrastructure, share reports of malicious use with the government, and make it easier for victims to report abuse of these systems.

“Given the interest of the cybersecurity community and digital infrastructure owners and operators in continuing this approach, we must sustain and expand upon this model so that collaborative disruption operations can be carried out on a continuous basis,” the strategy argues. “Threat specific collaboration should take the form of nimble, temporary cells, comprised of a small number of trusted operators, hosted and supported by a relevant hub. Using virtual collaboration platforms, members of the cell would share information bidirectionally and work rapidly to disrupt adversaries.”

But here, again, there is a carrot-and-stick approach: The administration said it is taking steps to implement Executive Order (EO) 13984 –issued by the Trump administration in January 2021 — which requires cloud providers to verify the identity of foreign persons using their services.

“All service providers must make reasonable attempts to secure the use of their infrastructure against abuse or other criminal behavior,” the strategy states. “The Administration will prioritize adoption and enforcement of a risk-based approach to cybersecurity across Infrastructure-as-a-Service providers that addresses known methods and indicators of malicious activity including through implementation of EO 13984.”

Ted Schlein, founding partner of the cybersecurity venture capital firm Ballistic Ventures, said how this gets implemented will determine whether it can be effective.

“Adversaries know the NSA, which is the elite portion of the nation’s cyber defense, cannot monitor U.S.-based infrastructure, so they just use U.S.-based cloud infrastructure to perpetrate their attacks,” Schlein said. “We have to fix this. I believe some of this section is a bit pollyannaish, as it assumes a bad actor with a desire to do a bad thing will self-identify themselves, as the major recommendation here is around KYC (‘know your customer’).”

INSURING THE INSURERS

One brief but interesting section of the strategy titled “Explore a Federal Cyber Insurance Backdrop” contemplates the government’s liability and response to a too-big-to-fail scenario or “catastrophic cyber incident.”

“We will explore how the government can stabilize insurance markets against catastrophic risk to drive better cybersecurity practices and to provide market certainty when catastrophic events do occur,” the strategy reads.

When the Bush administration released the first U.S. national cybersecurity strategy 20 years ago after the 9/11 attacks, the popular term for that same scenario was a “digital Pearl Harbor,” and there was a great deal of talk then about how the cyber insurance market would soon help companies shore up their cybersecurity practices.

In the wake of countless ransomware intrusions, many companies now hold cybersecurity insurance to help cover the considerable costs of responding to such intrusions. Leaving aside the question of whether insurance coverage has helped companies improve security, what happens if every one of these companies has to make a claim at the same time?

The notion of a Digital Pearl Harbor incident struck many experts at the time as a hyperbolic justification for expanding the government’s digital surveillance capabilities, and an overstatement of the capabilities of our adversaries. But back in 2003, most of the world’s companies didn’t host their entire business in the cloud.

Today, nobody questions the capabilities, goals and outcomes of dozens of nation-state level cyber adversaries. And these days, a catastrophic cyber incident could be little more than an extended, simultaneous outage at multiple cloud providers.

The full national cybersecurity strategy is available from the White House website (PDF).

Hackers Claim They Breached T-Mobile More Than 100 Times in 2022

By BrianKrebs

Image: Shutterstock.com

Three different cybercriminal groups claimed access to internal networks at communications giant T-Mobile in more than 100 separate incidents throughout 2022, new data suggests. In each case, the goal of the attackers was the same: Phish T-Mobile employees for access to internal company tools, and then convert that access into a cybercrime service that could be hired to divert any T-Mobile user’s text messages and phone calls to another device.

The conclusions above are based on an extensive analysis of Telegram chat logs from three distinct cybercrime groups or actors that have been identified by security researchers as particularly active in and effective at “SIM-swapping,” which involves temporarily seizing control over a target’s mobile phone number.

Countless websites and online services use SMS text messages for both password resets and multi-factor authentication. This means that stealing someone’s phone number often can let cybercriminals hijack the target’s entire digital life in short order — including access to any financial, email and social media accounts tied to that phone number.

All three SIM-swapping entities that were tracked for this story remain active in 2023, and they all conduct business in open channels on the instant messaging platform Telegram. KrebsOnSecurity is not naming those channels or groups here because they will simply migrate to more private servers if exposed publicly, and for now those servers remain a useful source of intelligence about their activities.

Each advertises their claimed access to T-Mobile systems in a similar way. At a minimum, every SIM-swapping opportunity is announced with a brief “Tmobile up!” or “Tmo up!” message to channel participants. Other information in the announcements includes the price for a single SIM-swap request, and the handle of the person who takes the payment and information about the targeted subscriber.

The information required from the customer of the SIM-swapping service includes the target’s phone number, and the serial number tied to the new SIM card that will be used to receive text messages and phone calls from the hijacked phone number.

Initially, the goal of this project was to count how many times each entity claimed access to T-Mobile throughout 2022, by cataloging the various “Tmo up!” posts from each day and working backwards from Dec. 31, 2022.

But by the time we got to claims made in the middle of May 2022, completing the rest of the year’s timeline seemed unnecessary. The tally shows that in the last seven-and-a-half months of 2022, these groups collectively made SIM-swapping claims against T-Mobile on 104 separate days — often with multiple groups claiming access on the same days.

The 104 days in the latter half of 2022 in which different known SIM-swapping groups claimed access to T-Mobile employee tools.

KrebsOnSecurity shared a large amount of data gathered for this story with T-Mobile. The company declined to confirm or deny any of these claimed intrusions. But in a written statement, T-Mobile said this type of activity affects the entire wireless industry.

“And we are constantly working to fight against it,” the statement reads. “We have continued to drive enhancements that further protect against unauthorized access, including enhancing multi-factor authentication controls, hardening environments, limiting access to data, apps or services, and more. We are also focused on gathering threat intelligence data, like what you have shared, to help further strengthen these ongoing efforts.”

TMO UP!

While it is true that each of these cybercriminal actors periodically offer SIM-swapping services for other mobile phone providers — including AT&T, Verizon and smaller carriers — those solicitations appear far less frequently in these group chats than T-Mobile swap offers. And when those offers do materialize, they are considerably more expensive.

The prices advertised for a SIM-swap against T-Mobile customers in the latter half of 2022 ranged between USD $1,000 and $1,500, while SIM-swaps offered against AT&T and Verizon customers often cost well more than twice that amount.

To be clear, KrebsOnSecurity is not aware of specific SIM-swapping incidents tied to any of these breach claims. However, the vast majority of advertisements for SIM-swapping claims against T-Mobile tracked in this story had two things in common that set them apart from random SIM-swapping ads on Telegram.

First, they included an offer to use a mutually trusted “middleman” or escrow provider for the transaction (to protect either party from getting scammed). More importantly, the cybercriminal handles that were posting ads for SIM-swapping opportunities from these groups generally did so on a daily or near-daily basis — often teasing their upcoming swap events in the hours before posting a “Tmo up!” message announcement.

In other words, if the crooks offering these SIM-swapping services were ripping off their customers or claiming to have access that they didn’t, this would be almost immediately obvious from the responses of the more seasoned and serious cybercriminals in the same chat channel.

There are plenty of people on Telegram claiming to have SIM-swap access at major telecommunications firms, but a great many such offers are simply four-figure scams, and any pretenders on this front are soon identified and banned (if not worse).

One of the groups that reliably posted “Tmo up!” messages to announce SIM-swap availability against T-Mobile customers also reliably posted “Tmo down!” follow-up messages announcing exactly when their claimed access to T-Mobile employee tools was discovered and revoked by the mobile giant.

A review of the timestamps associated with this group’s incessant “Tmo up” and “Tmo down” posts indicates that while their claimed access to employee tools usually lasted less than an hour, in some cases that access apparently went undiscovered for several hours or even days.

TMO TOOLS

How could these SIM-swapping groups be gaining access to T-Mobile’s network as frequently as they claim? Peppered throughout the daily chit-chat on their Telegram channels are solicitations for people urgently needed to serve as “callers,” or those who can be hired to social engineer employees over the phone into navigating to a phishing website and entering their employee credentials.

Allison Nixon is chief research officer for the New York City-based cybersecurity firm Unit 221B. Nixon said these SIM-swapping groups will typically call employees on their mobile devices, pretend to be someone from the company’s IT department, and then try to get the person on the other end of the line to visit a phishing website that mimics the company’s employee login page.

Nixon argues that many people in the security community tend to discount the threat from voice phishing attacks as somehow “low tech” and “low probability” threats.

“I see it as not low-tech at all, because there are a lot of moving parts to phishing these days,” Nixon said. “You have the caller who has the employee on the line, and the person operating the phish kit who needs to spin it up and down fast enough so that it doesn’t get flagged by security companies. Then they have to get the employee on that phishing site and steal their credentials.”

In addition, she said, often there will be yet another co-conspirator whose job it is to use the stolen credentials and log into employee tools. That person may also need to figure out how to make their device pass “posture checks,” a form of device authentication that some companies use to verify that each login is coming only from employer-issued phones or laptops.

For aspiring criminals with little experience in scam calling, there are plenty of sample call transcripts available on these Telegram chat channels that walk one through how to impersonate an IT technician at the targeted company — and how to respond to pushback or skepticism from the employee. Here’s a snippet from one such tutorial that appeared recently in one of the SIM-swapping channels:

“Hello this is James calling from Metro IT department, how’s your day today?”

(yea im doing good, how r u)

i’m doing great, thank you for asking

i’m calling in regards to a ticket we got last week from you guys, saying you guys were having issues with the network connectivity which also interfered with [Microsoft] Edge, not letting you sign in or disconnecting you randomly. We haven’t received any updates to this ticket ever since it was created so that’s why I’m calling in just to see if there’s still an issue or not….”

TMO DOWN!

The TMO UP data referenced above, combined with comments from the SIM-swappers themselves, indicate that while many of their claimed accesses to T-Mobile tools in the middle of 2022 lasted hours on end, both the frequency and duration of these events began to steadily decrease as the year wore on.

T-Mobile declined to discuss what it may have done to combat these apparent intrusions last year. However, one of the groups began to complain loudly in late October 2022 that T-Mobile must have been doing something that was causing their phished access to employee tools to die very soon after they obtained it.

One group even remarked that they suspected T-Mobile’s security team had begun monitoring their chats.

Indeed, the timestamps associated with one group’s TMO UP/TMO DOWN notices show that their claimed access was often limited to less than 15 minutes throughout November and December of 2022.

Whatever the reason, the calendar graphic above clearly shows that the frequency of claimed access to T-Mobile decreased significantly across all three SIM-swapping groups in the waning weeks of 2022.

SECURITY KEYS

T-Mobile US reported revenues of nearly $80 billion last year. It currently employs more than 71,000 people in the United States, any one of whom can be a target for these phishers.

T-Mobile declined to answer questions about what it may be doing to beef up employee authentication. But Nicholas Weaver, a researcher and lecturer at University of California, Berkeley’s International Computer Science Institute, said T-Mobile and all the major wireless providers should be requiring employees to use physical security keys for that second factor when logging into company resources.

A U2F device made by Yubikey.

“These breaches should not happen,” Weaver said. “Because T-Mobile should have long ago issued all employees security keys and switched to security keys for the second factor. And because security keys provably block this style of attack.”

The most commonly used security keys are inexpensive USB-based devices. A security key implements a form of multi-factor authentication known as Universal 2nd Factor (U2F), which allows the user to complete the login process simply by inserting the USB key and pressing a button on the device. The key works without the need for any special software drivers.

The allure of U2F devices for multi-factor authentication is that even if an employee who has enrolled a security key for authentication tries to log in at an impostor site, the company’s systems simply refuse to request the security key if the user isn’t on their employer’s legitimate website, and the login attempt fails. Thus, the second factor cannot be phished, either over the phone or Internet.

THE ROLE OF MINORS IN SIM-SWAPPING

Nixon said one confounding aspect of SIM-swapping is that these criminal groups tend to recruit teenagers to do their dirty work.

“A huge reason this problem has been allowed to spiral out of control is because children play such a prominent role in this form of breach,” Nixon said.

Nixon said SIM-swapping groups often advertise low-level jobs on places like Roblox and Minecraft, online games that are extremely popular with young adolescent males.

“Statistically speaking, that kind of recruiting is going to produce a lot of people who are underage,” she said. “They recruit children because they’re naive, you can get more out of them, and they have legal protections that other people over 18 don’t have.”

For example, she said, even when underage SIM-swappers are arrested, the offenders tend to go right back to committing the same crimes as soon as they’re released.

In January 2023, T-Mobile disclosed that a “bad actor” stole records on roughly 37 million current customers, including their name, billing address, email, phone number, date of birth, and T-Mobile account number.

In August 2021, T-Mobile acknowledged that hackers made off with the names, dates of birth, Social Security numbers and driver’s license/ID information on more than 40 million current, former or prospective customers who applied for credit with the company. That breach came to light after a hacker began selling the records on a cybercrime forum.

In the shadow of such mega-breaches, any damage from the continuous attacks by these SIM-swapping groups can seem insignificant by comparison. But Nixon says it’s a mistake to dismiss SIM-swapping as a low volume problem.

“Logistically, you may only be able to get a few dozen or a hundred SIM-swaps in a day, but you can pick any customer you want across their entire customer base,” she said. “Just because a targeted account takeover is low volume doesn’t mean it’s low risk. These guys have crews that go and identify people who are high net worth individuals and who have a lot to lose.”

Nixon said another aspect of SIM-swapping that causes cybersecurity defenders to dismiss the threat from these groups is the perception that they are full of low-skilled “script kiddies,” a derisive term used to describe novice hackers who rely mainly on point-and-click hacking tools.

“They underestimate these actors and say this person isn’t technically sophisticated,” she said. “But if you’re rolling around in millions worth of stolen crypto currency, you can buy that sophistication. I know for a fact some of these compromises were at the hands of these ‘script kiddies,’ but they’re not ripping off other people’s scripts so much as hiring people to make scripts for them. And they don’t care what gets the job done, as long as they get to steal the money.”

When Low-Tech Hacks Cause High-Impact Breaches

By BrianKrebs

Web hosting giant GoDaddy made headlines this month when it disclosed that a multi-year breach allowed intruders to steal company source code, siphon customer and employee login credentials, and foist malware on customer websites. Media coverage understandably focused on GoDaddy’s admission that it suffered three different cyberattacks over as many years at the hands of the same hacking group.  But it’s worth revisiting how this group typically got in to targeted companies: By calling employees and tricking them into navigating to a phishing website.

In a filing with the U.S. Securities and Exchange Commission (SEC), GoDaddy said it determined that the same “sophisticated threat actor group” was responsible for three separate intrusions, including:

-March 2020: A spear-phishing attack on a GoDaddy employee compromised the hosting login credentials of approximately 28,000 GoDaddy customers, as well as login credentials for a small number employees;

-November 2021: A compromised GoDaddy password let attackers steal source code and information tied to 1.2 million customers, including website administrator passwords, sFTP credentials, and private SSL keys;

-December 2022: Hackers gained access to and installed malware on GoDaddy’s cPanel hosting servers that “intermittently redirected random customer websites to malicious sites.”

“Based on our investigation, we believe these incidents are part of a multi-year campaign by a sophisticated threat actor group that, among other things, installed malware on our systems and obtained pieces of code related to some services within GoDaddy,” the company stated in its SEC filing.

What else do we know about the cause of these incidents? We don’t know much about the source of the November 2021 incident, other than GoDaddy’s statement that it involved a compromised password, and that it took about two months for the company to detect the intrusion. GoDaddy has not disclosed the source of the breach in December 2022 that led to malware on some customer websites.

But we do know the March 2020 attack was precipitated by a spear-phishing attack against a GoDaddy employee. GoDaddy described the incident at the time in general terms as a social engineering attack, but one of its customers affected by that March 2020 breach actually spoke to one of the hackers involved.

The hackers were able to change the Domain Name System (DNS) records for the transaction brokering site escrow.com so that it pointed to an address in Malaysia that was host to just a few other domains, including the then brand-new phishing domain servicenow-godaddy[.]com.

The general manager of Escrow.com found himself on the phone with one of the GoDaddy hackers, after someone who claimed they worked at GoDaddy called and said they needed him to authorize some changes to the account.

In reality, the caller had just tricked a GoDaddy employee into giving away their credentials, and he could see from the employee’s account that Escrow.com required a specific security procedure to complete a domain transfer.

The general manager of Escrow.com said he suspected the call was a scam, but decided to play along for about an hour — all the while recording the call and coaxing information out of the scammer.

“This guy had access to the notes, and knew the number to call,” to make changes to the account, the CEO of Escrow.com told KrebsOnSecurity. “He was literally reading off the tickets to the notes of the admin panel inside GoDaddy.”

About halfway through this conversation — after being called out by the general manager as an imposter — the hacker admitted that he was not a GoDaddy employee, and that he was in fact part of a group that enjoyed repeated success with social engineering employees at targeted companies over the phone.

Absent from GoDaddy’s SEC statement is another spate of attacks in November 2020, in which unknown intruders redirected email and web traffic for multiple cryptocurrency services that used GoDaddy in some capacity.

It is possible this incident was not mentioned because it was the work of yet another group of intruders. But in response to questions from KrebsOnSecurity at the time, GoDaddy said that incident also stemmed from a “limited” number of GoDaddy employees falling for a sophisticated social engineering scam.

“As threat actors become increasingly sophisticated and aggressive in their attacks, we are constantly educating employees about new tactics that might be used against them and adopting new security measures to prevent future attacks,” GoDaddy said in a written statement back in 2020.

Voice phishing or “vishing” attacks typically target employees who work remotely. The phishers will usually claim that they’re calling from the employer’s IT department, supposedly to help troubleshoot some issue. The goal is to convince the target to enter their credentials at a website set up by the attackers that mimics the organization’s corporate email or VPN portal.

Experts interviewed for an August 2020 story on a steep rise in successful voice phishing attacks said there are generally at least two people involved in each vishing scam: One who is social engineering the target over the phone, and another co-conspirator who takes any credentials entered at the phishing page — including multi-factor authentication codes shared by the victim — and quickly uses them to log in to the company’s website.

The attackers are usually careful to do nothing with the phishing domain until they are ready to initiate a vishing call to a potential victim. And when the attack or call is complete, they disable the website tied to the domain.

This is key because many domain registrars will only respond to external requests to take down a phishing website if the site is live at the time of the abuse complaint. This tactic also can stymie efforts by companies that focus on identifying newly-registered phishing domains before they can be used for fraud.

A U2F device made by Yubikey.

GoDaddy’s latest SEC filing indicates the company had nearly 7,000 employees as of December 2022. In addition, GoDaddy contracts with another 3,000 people who work full-time for the company via business process outsourcing companies based primarily in India, the Philippines and Colombia.

Many companies now require employees to supply a one-time password — such as one sent via SMS or produced by a mobile authenticator app — in addition to their username and password when logging in to company assets online. But both SMS and app-based codes can be undermined by phishing attacks that simply request this information in addition to the user’s password.

One multifactor option — physical security keys — appears to be immune to these advanced scams. The most commonly used security keys are inexpensive USB-based devices. A security key implements a form of multi-factor authentication known as Universal 2nd Factor (U2F), which allows the user to complete the login process simply by inserting the USB device and pressing a button on the device. The key works without the need for any special software drivers.

The allure of U2F devices for multi-factor authentication is that even if an employee who has enrolled a security key for authentication tries to log in at an impostor site, the company’s systems simply refuse to request the security key if the user isn’t on their employer’s legitimate website, and the login attempt fails. Thus, the second factor cannot be phished, either over the phone or Internet.

In July 2018, Google disclosed that it had not had any of its 85,000+ employees successfully phished on their work-related accounts since early 2017, when it began requiring all employees to use physical security keys in place of one-time codes.

New Protections for Food Benefits Stolen by Skimmers

By BrianKrebs

Millions of Americans receiving food assistance benefits just earned a new right that they can’t yet enforce: The right to be reimbursed if funds on their Electronic Benefit Transfer (EBT) cards are stolen by card skimming devices secretly installed at cash machines and grocery store checkout lanes.

On December 29, 2022, President Biden signed into law the Consolidated Appropriations Act of 2023, which — for the first time ever — includes provisions for the replacement of stolen EBT benefits. This is a big deal because in 2022, organized crime groups began massively targeting EBT accounts — often emptying affected accounts at ATMs immediately after the states disperse funds each month.

EBT cards can be used along with a personal identification number (PIN) to pay for goods at participating stores, and to withdraw cash from an ATM. However, EBT cards differ from debit cards issued to most Americans in two important ways. First, most states do not equip EBT cards with smart chip technology, which can make the cards more difficult and expensive for skimming thieves to clone.

More critically, EBT participants traditionally have had little hope of recovering food assistance funds when their cards were copied by card-skimming devices and used for fraud. That’s because while the EBT programs are operated by individually by the states, those programs are funded by the U.S. Department of Agriculture (USDA), which until late last year was barred from reimbursing states for stolen EBT funds.

The protections passed in the 2023 Appropriations Act allow states to use federal funds to replace stolen EBT benefits, and they permit states to seek reimbursement for any skimmed EBT funds they may have replaced from their own coffers (dating back to Oct. 1, 2022).

But first, all 50 states must each submit a plan for how they are going to protect and replace food benefits stolen via card skimming. Guidance for the states in drafting those plans was issued by the USDA on Jan. 31 (PDF), and states that don’t get them done before Feb. 27, 2023 risk losing the ability to be reimbursed for EBT fraud losses.

Deborah Harris is a staff attorney at The Massachusetts Law Reform Institute (MLRI), a nonprofit legal assistance organization that has closely tracked the EBT skimming epidemic. In November 2022, the MLRI filed a class-action lawsuit against Massachusetts on behalf of thousands of low-income families who were collectively robbed of more than $1 million in food assistance benefits by card skimming devices secretly installed at cash machines and grocery store checkout lanes across the state.

Harris said she’s pleased that the USDA guidelines were issued so promptly, and that the guidance for states was not overly prescriptive. For example, some security experts have suggested that adding contactless capability to EBT cards could help participants avoid skimming devices altogether. But Harris said contactless cards do not require a PIN, which is the only thing that stops EBT cards from being drained at the ATM when a participant’s card is lost or stolen.

Then again, nothing in the guidance even mentions chip-based cards, or any other advice for improving the physical security of EBT cards. Rather, it suggests states should seek to develop the capability to perform basic fraud detection and alerting on suspicious transactions, such as when an EBT card that is normally used only in one geographic area suddenly is used to withdraw cash at an ATM halfway across the country.

“Besides having the states move fast to approve their plans, we’d also like to see a focused effort to move states from magstripe-only cards to chip, and also assisting states to develop the algorithms that will enable them to identify likely incidents of stolen benefits,” Harris said.

Harris said Massachusetts has begun using algorithms to look for these suspicious transaction patterns throughout its EBT network, and now has the ability to alert households and verify transactions. But she said most states do not have this capability.

“We have heard that other states aren’t currently able to do that,” Harris said. “But encouraging states to more affirmatively identify instances of likely theft and assisting with the claims and verification process is critical. Most households can’t do that on their own, and in Massachusetts it’s very hard for a person to get a copy of their transaction history. Some states can do that through third-party apps, but something so basic should not be on the burden of EBT households.”

Some states aren’t waiting for direction from the federal government to beef up EBT card security. Like Maryland, which identified more than 1,400 households hit by EBT skimming attacks last year — a tenfold increase over 2021.

Advocates for EBT beneficiaries in Maryland are backing Senate Bill 401 (PDF), which would require the use of chip technology and ongoing monitoring for suspicious activity (a hearing on SB401 is scheduled in the Maryland Senate Finance Commission for Thursday, Feb. 23, at 1 p.m.).

Michelle Salomon Madaio is a director at the Homeless Persons Representation Project, a legal assistance organization based in Silver Spring, Md. Madaio said the bill would require the state Department of Human Services to replace skimmed benefits, not only after the bill goes into effect but also retroactively from January 2020 to the present.

Madaio said the bill also would require the state to monitor for patterns of suspicious activity on EBT cards, and to develop a mechanism to contact potentially affected households.

“For most of the skimming victims we’ve worked with, the fraudulent transactions would be pretty easy to spot because they mostly happened in the middle of the night or out of state, or both,” Madaio said. “To make matters worse, a lot of families whose benefits were scammed then incurred late fees on many other things as a result.”

It is not difficult to see why organized crime groups have pounced on EBT cards as easy money. In most traditional payment card transactions, there are usually several parties that have a financial interest in minimizing fraud and fraud losses, including the bank that issued the card, the card network (Visa, MasterCard, Discover, etc.), and the merchant.

But that infrastructure simply does not exist within state EBT programs, and it certainly isn’t a thing at the inter-state level. What that means is that the vast majority of EBT cards have zero fraud controls, which is exactly what continues to make them so appealing to thieves.

For now, the only fraud controls available to most EBT cardholders include being especially paranoid about where they use their cards, and frequently changing their PINs.

According to USDA guidance issued prior to the passage of the appropriations act, EBT cardholders should consider changing their card PIN at least once a month.

“By changing PINs frequently, at least monthly, and doing so before benefit issuance dates, households can minimize their risk of stolen benefits from a previously skimmed EBT card,” the USDA advised.

New T-Mobile Breach Affects 37 Million Accounts

By BrianKrebs

T-Mobile today disclosed a data breach affecting tens of millions of customer accounts, its second major data exposure in as many years. In a filing with federal regulators, T-Mobile said an investigation determined that someone abused its systems to harvest subscriber data tied to approximately 37 million current customer accounts.

Image: customink.com

In a filing today with the U.S. Securities and Exchange Commission, T-Mobile said a “bad actor” abused an application programming interface (API) to hoover up data on roughly 37 million current postpaid and prepaid customer accounts. The data stolen included customer name, billing address, email, phone number, date of birth, T-Mobile account number, as well as information on the number of customer lines and plan features.

APIs are essentially instructions that allow applications to access data and interact with web databases. But left improperly secured, these APIs can be leveraged by malicious actors to mass-harvest information stored in those databases. In October, mobile provider Optus disclosed that hackers abused a poorly secured API to steal data on 10 million customers in Australia.

T-Mobile said it first learned of the incident on Jan. 5, 2023, and that an investigation determined the bad actor started abusing the API beginning around Nov. 25, 2022. The company says it is in the process of notifying affected customers, and that no customer payment card data, passwords, Social Security numbers, driver’s license or other government ID numbers were exposed.

In August 2021, T-Mobile acknowledged that hackers made off with the names, dates of birth, Social Security numbers and driver’s license/ID information on more than 40 million current, former or prospective customers who applied for credit with the company. That breach came to light after a hacker began selling the records on a cybercrime forum.

Last year, T-Mobile agreed to pay $500 million to settle all class action lawsuits stemming from the 2021 breach. The company pledged to spend $150 million of that money toward beefing up its own cybersecurity.

In its filing with the SEC, T-Mobile suggested it was going to take years to fully realize the benefits of those cybersecurity improvements, even as it claimed that protecting customer data remains a top priority.

“As we have previously disclosed, in 2021, we commenced a substantial multi-year investment working with leading external cybersecurity experts to enhance our cybersecurity capabilities and transform our approach to cybersecurity,” the filing reads. “We have made substantial progress to date, and protecting our customers’ data remains a top priority.”

Despite this being the second major customer data spill in as many years, T-Mobile told the SEC the company does not expect this latest breach to have a material impact on its operations.

While that may seem like a daring thing to say in a data breach disclosure affecting a significant portion of your active customer base, consider that T-Mobile reported revenues of nearly $20 billion in the third quarter of 2022 alone. In that context, a few hundred million dollars every couple of years to make the class action lawyers go away is a drop in the bucket.

The settlement related to the 2021 breach says T-Mobile will make $350 million available to customers who file a claim. But here’s the catch: If you were affected by that 2021 breach and you haven’t filed a claim yet, please know that you have only three more days to do that.

If you were a T-Mobile customer affected by the 2021 incident, it is likely that T-Mobile has already made several efforts to notify you of your eligibility to file a claim, which includes a payout of at least $25, with the possibility of more for those who can document direct costs associated with the breach. OpenClassActions.com says the filing deadline is Jan. 23, 2023.

“If you opt for a cash payment you will receive an estimated $25.00,” the site explains. “If you reside in California, you will receive an estimated $100.00. Out of pocket losses can be reimbursed for up to $25,000.00. The amount that you claim from T-Mobile will be determined by the class action administrator based on how many people file a legitimate and timely claim form.”

There are currently no signs that hackers are selling this latest data haul from T-Mobile, but if the past is any teacher much of it will wind up posted online soon. It is a safe bet that scammers will use some of this information to target T-Mobile users with phishing messages, account takeovers and harassment.

T-Mobile customers should fully expect to see phishers taking advantage of public concern over the breach to impersonate the company — and possibly even send messages that include the recipient’s compromised account details to make the communications look more legitimate.

Data stolen and exposed in this breach may also be used for identity theft. Credit monitoring and ID theft protection services can help you recover from having your identity stolen, but most will do nothing to stop the ID theft from happening. If you want the maximum control over who should be able to view your credit or grant new lines of credit in your name, then a security freeze is your best option.

Regardless of which mobile provider you patronize, please consider removing your phone number from as many online accounts as you can. Many online services require you to provide a phone number upon registering an account, but in many cases that number can be removed from your profile afterwards.

Why do I suggest this? Many online services allow users to reset their passwords just by clicking a link sent via SMS, and this unfortunately widespread practice has turned mobile phone numbers into de facto identity documents. Which means losing control over your phone number thanks to an unauthorized SIM swap or mobile number port-out, divorce, job termination or financial crisis can be devastating.

Identity Thieves Bypassed Experian Security to View Credit Reports

By BrianKrebs

Identity thieves have been exploiting a glaring security weakness in the website of Experian, one of the big three consumer credit reporting bureaus. Normally, Experian requires that those seeking a copy of their credit report successfully answer several multiple choice questions about their financial history. But until the end of 2022, Experian’s website allowed anyone to bypass these questions and go straight to the consumer’s report. All that was needed was the person’s name, address, birthday and Social Security number.

The vulnerability in Experian’s website was exploitable after one applied to see their credit file via annualcreditreport.com.

In December, KrebsOnSecurity heard from Jenya Kushnir, a security researcher living in Ukraine who said he discovered the method being used by identity thieves after spending time on Telegram chat channels dedicated to the cashing out of compromised identities.

“I want to try and help to put a stop to it and make it more difficult for [ID thieves] to access, since [Experian is] not doing shit and regular people struggle,” Kushnir wrote in an email to KrebsOnSecurity explaining his motivations for reaching out. “If somehow I can make small change and help to improve this, inside myself I can feel that I did something that actually matters and helped others.”

Kushnir said the crooks learned they could trick Experian into giving them access to anyone’s credit report, just by editing the address displayed in the browser URL bar at a specific point in Experian’s identity verification process.

Following Kushnir’s instructions, I sought a copy of my credit report from Experian via annualcreditreport.com — a website that is required to provide all Americans with a free copy of their credit report from each of the three major reporting bureaus, once per year.

Annualcreditreport.com begins by asking for your name, address, SSN and birthday. After I supplied that and told Annualcreditreport.com I wanted my report from Experian, I was taken to Experian.com to complete the identity verification process.

Normally at this point, Experian’s website would present four or five multiple-guess questions, such as “Which of the following addresses have you lived at?”

Kushnir told me that when the questions page loads, you simply change the last part of the URL from “/acr/oow/” to “/acr/report,” and the site would display the consumer’s full credit report.

But when I tried to get my report from Experian via annualcreditreport.com, Experian’s website said it didn’t have enough information to validate my identity. It wouldn’t even show me the four multiple-guess questions. Experian said I had three options for a free credit report at this point: Mail a request along with identity documents, call a phone number for Experian, or upload proof of identity via the website.

But that didn’t stop Experian from showing me my full credit report after I changed the Experian URL as Kushnir had instructed — modifying the error page’s trailing URL from “/acr/OcwError” to simply “/acr/report”.

Experian’s website then immediately displayed my entire credit file.

Even though Experian said it couldn’t tell that I was actually me, it still coughed up my report. And thank goodness it did. The report contains so many errors that it’s probably going to take a good deal of effort on my part to straighten out.

Now I know why Experian has NEVER let me view my own file via their website. For example, there were four phone numbers on my Experian credit file: Only one of them was mine, and that one hasn’t been mine for ages.

I was so dumbfounded by Experian’s incompetence that I asked a close friend and trusted security source to try the method on her identity file at Experian. Sure enough, when she got to the part where Experian asked questions, changing the last part of the URL in her address bar to “/report” bypassed the questions and immediately displayed her full credit report. Her report also was replete with errors.

KrebsOnSecurity shared Kushnir’s findings with Experian on Dec. 23, 2022. On Dec. 27, 2022, Experian’s PR team acknowledged receipt of my Dec. 23 notification, but the company has so far ignored multiple requests for comment or clarification.

By the time Experian confirmed receipt of my report, the “exploit” Kushnir said he learned from the identity thieves on Telegram had been patched and no longer worked. But it remains unclear how long Experian’s website was making it so easy to access anyone’s credit report.

In response to information shared by KrebsOnSecurity, Senator Ron Wyden (D-Ore.) said he was disappointed — but not at all surprised — to hear about yet another cybersecurity lapse at Experian.

“The credit bureaus are poorly regulated, act as if they are above the law and have thumbed their noses at Congressional oversight,” Wyden said in a written statement. “Just last year, Experian ignored repeated briefing requests from my office after you revealed another cybersecurity lapse the company.”

Sen. Wyden’s quote above references a story published here in July 2022, which broke the news that identity thieves were hijacking consumer accounts at Experian.com just by signing up as them at Experian once more, supplying the target’s static, personal information (name, DoB/SSN, address) but a different email address.

From interviews with multiple victims who contacted KrebsOnSecurity after that story, it emerged that Experian’s own customer support representatives were actually telling consumers who got locked out of their Experian accounts to recreate their accounts using their personal information and a new email address. This was Experian’s advice even for people who’d just explained that this method was what identity thieves had used to lock them in out in the first place.

Clearly, Experian found it simpler to respond this way, rather than acknowledging the problem and addressing the root causes (lazy authentication and abhorrent account recovery practices). It’s also worth mentioning that reports of hijacked Experian.com accounts persisted into late 2022. That screw-up has since prompted a class action lawsuit against Experian.

Sen. Wyden said the Federal Trade Commission (FTC) and Consumer Financial Protection Bureau (CFPB) need to do much more to protect Americans from screw-ups by the credit bureaus.

“If they don’t believe they have the authority to do so, they should endorse legislation like my Mind Your Own Business Act, which gives the FTC power to set tough mandatory cybersecurity standards for companies like Experian,” Wyden said.

Sadly, none of this is terribly shocking behavior for Experian, which has shown itself a completely negligent custodian of obscene amounts of highly sensitive consumer information.

In April 2021, KrebsOnSecurity revealed how identity thieves were exploiting lax authentication on Experian’s PIN retrieval page to unfreeze consumer credit files. In those cases, Experian failed to send any notice via email when a freeze PIN was retrieved, nor did it require the PIN to be sent to an email address already associated with the consumer’s account.

A few days after that April 2021 story, KrebsOnSecurity broke the news that an Experian API was exposing the credit scores of most Americans.

It’s bad enough that we can’t really opt out of companies like Experian making $2.6 billion each quarter collecting and selling gobs of our personal and financial information. But there has to be some meaningful accountability when these monopolistic companies engage in negligent and reckless behavior with the very same consumer data that feeds their quarterly profits. Or when security and privacy shortcuts are found to be intentional, like for cost-saving reasons.

And as we saw with Equifax’s consolidated class-action settlement in response to letting state-sponsored hackers from China steal data on nearly 150 million Americans back in 2017, class-actions and more laughable “free credit monitoring” services from the very same companies that created the problem aren’t going to cut it.

WHAT CAN YOU DO?

It is easy to adopt a defeatist attitude with the credit bureaus, who often foul things up royally even for consumers who are quite diligent about watching their consumer credit files and disputing any inaccuracies.

But there are some concrete steps that everyone can take which will dramatically lower the risk that identity thieves will ruin your financial future. And happily, most of these steps have the side benefit of costing the credit bureaus money, or at least causing the data they collect about you to become less valuable over time.

The first step is awareness. Find out what these companies are saying about you behind your back. Keep in mind that — fair or not — your credit score as collectively determined by these bureaus can affect whether you get that loan, apartment, or job. In that context, even small, unintentional errors that are unrelated to identity theft can have outsized consequences for consumers down the road.

Each bureau is required to provide a free copy of your credit report every year. The easiest way to get yours is through annualcreditreport.com.

Some consumers report that this site never works for them, and that each bureau will insist they don’t have enough information to provide a report. I am definitely in this camp. Thankfully, a financial institution that I already have a relationship with offers the ability to view your credit file through them. Your mileage on this front may vary, and you may end up having to send copies of your identity documents through the mail or website.

When you get your report, look for anything that isn’t yours, and then document and file a dispute with the corresponding credit bureau. And after you’ve reviewed your report, set a calendar reminder to recur every four months, reminding you it’s time to get another free copy of your credit file.

If you haven’t already done so, consider making 2023 the year that you freeze your credit files at the three major reporting bureaus, including Experian, Equifax and TransUnion. It is now free to people in all 50 U.S. states to place a security freeze on their credit files. It is also free to do this for your partner and/or your dependents.

Freezing your credit means no one who doesn’t already have a financial relationship with you can view your credit file, making it unlikely that potential creditors will grant new lines of credit in your name to identity thieves. Freezing your credit file also means Experian and its brethren can no longer sell peeks at your credit history to others.

Anytime you wish to apply for new credit or a new job, or open an account at a utility or communications provider, you can quickly thaw a freeze on your credit file, and set it to freeze automatically again after a specified length of time.

Please don’t confuse a credit freeze (a.k.a. “security freeze”) with the alternative that the bureaus will likely steer you towards when you ask for a freeze: “Credit lock” services.

The bureaus pitch these credit lock services as a way for consumers to easily toggle their credit file availability with push of a button on a mobile app, but they do little to prevent the bureaus from continuing to sell your information to others.

My advice: Ignore the lock services, and just freeze your credit files already.

One final note. Frequent readers here will have noticed that I’ve criticized these so-called “knowledge-based authentication” or KBA questions that Experian’s website failed to ask as part of its consumer verification process.

KrebsOnSecurity has long assailed KBA as weak authentication because the questions and answers are drawn largely from consumer records that are public and easily accessible to organized identity theft groups.

That said, given that these KBA questions appear to be the ONLY thing standing between me and my Experian credit report, it seems like maybe they should at least take care to ensure that those questions actually get asked.

The Equifax Breach Settlement Offer is Real, For Now

By BrianKrebs

Millions of people likely just received an email or snail mail notice saying they’re eligible to claim a class action payment in connection with the 2017 megabreach at consumer credit bureau Equifax. Given the high volume of reader inquiries about this, it seemed worth pointing out that while this particular offer is legit (if paltry), scammers are likely to soon capitalize on public attention to the settlement money.

One reader’s copy of their Equifax Breach Settlement letter. They received a check for $6.97.

In 2017, Equifax disclosed a massive, extended data breach that led to the theft of Social Security Numbers, dates of birth, addresses and other personal information on nearly 150 million people. Following a public breach response perhaps best described as a giant dumpster fire, the big-three consumer credit reporting bureau was quickly hit with nearly two dozen class-action lawsuits.

In exchange for resolving all outstanding class action claims against it, Equifax in 2019 agreed to a settlement that includes up to $425 million to help people affected by the breach.

Affected consumers were eligible to apply for at least three years of credit monitoring via all three major bureaus simultaneously, including Equifax, Experian and TransUnion. Or, if you didn’t want to take advantage of the credit monitoring offers, you could opt for a cash payment of up to $125.

The settlement also offered reimbursement for the time you may have spent remedying identity theft or misuse of your personal information caused by the breach, or purchasing credit monitoring or credit reports. This was capped at 20 total hours at $25 per hour ($500), with total cash reimbursement payments not to exceed $20,000 per consumer.

Those who did file a claim probably started receiving emails or other communications earlier this year from the Equifax Breach Settlement Fund, which has been messaging class participants about methods of collecting their payments.

How much each recipient receives appears to vary quite a bit, but probably most people will have earned a payment on the smaller end of that $125 scale — like less than $10. Those who received higher amounts likely spent more time documenting actual losses and/or explaining how the breach affected them personally.

So far this week, KrebsOnSecurity has received at least 20 messages from readers seeking more information about these notices. Some readers shared copies of letters they got in the mail along with a paper check from the Equifax Breach Settlement Fund (see screenshot above).

Others said they got emails from the Equifax Breach Settlement domain that looked like an animated greeting card offering instructions on how to redeem a virtual prepaid card.

If you received one of these settlement emails and are wary about clicking the included links (good for you, by the way), copy the redemption code and paste it into the search box at myprepaidcenter.com/redeem. Successfully completing the card application requires accepting a prepaid MasterCard agreement (PDF).

The website for the settlement — equifaxbreachsettlement.com — also includes a lookup tool that lets visitors check whether they were affected by the breach; it requires your last name and the last six digits of your Social Security Number.

But be aware that phishers and other scammers are likely to take advantage of increased public awareness of the payouts to snooker people. Tim Helming, security evangelist at DomainTools.com, today flagged several new domains that mimic the name of the real Equifax Breach Settlement website and do not appear to be defensively registered by Equifax, including equifaxbreechsettlement[.]com, equifaxbreachsettlementbreach[.]com, and equifaxsettlements[.]co.

In February 2020, the U.S. Justice Department indicted four Chinese officers of the People’s Liberation Army (PLA) for perpetrating the 2017 Equifax hack. DOJ officials said the four men were responsible for carrying out the largest theft of sensitive personal information by state-sponsored hackers ever recorded.

Equifax surpassed Wall Street’s expectations in its most recent quarterly earnings: The company reported revenues of $1.24 billion for the quarter ending September 2022.

Of course, most of those earnings come from Equifax’s continued legal ability to buy and sell eye-popping amounts of financial and personal data on U.S. consumers. As one of the three major credit bureaus, Equifax collects and packages information about your credit, salary, and employment history. It tracks how many credit cards you have, how much money you owe, and how you pay your bills. Each company creates a credit report about you, and then sells this report to businesses who are deciding whether to give you credit.

Americans currently have no legal right to opt out of this data collection and trade. But you can and also should freeze your credit, which by the way can make your credit profile less profitable for companies like Equifax — because they make money every time some potential creditor wants a peek inside your financial life. Also, it’s probably a good idea to freeze the credit of your children and/or dependents as well. It’s free on both counts.

New Ransom Payment Schemes Target Executives, Telemedicine

By BrianKrebs

Ransomware groups are constantly devising new methods for infecting victims and convincing them to pay up, but a couple of strategies tested recently seem especially devious. The first centers on targeting healthcare organizations that offer consultations over the Internet and sending them booby-trapped medical records for the “patient.” The other involves carefully editing email inboxes of public company executives to make it appear that some were involved in insider trading.

Alex Holden is founder of Hold Security, a Milwaukee-based cybersecurity firm. Holden’s team gained visibility into discussions among members of two different ransom groups: CLOP (a.k.a. “Cl0p” a.k.a. “TA505“), and a newer ransom group known as Venus.

Last month, the U.S. Department of Health and Human Services (HHS) warned that Venus ransomware attacks were targeting a number of U.S. healthcare organizations. First spotted in mid-August 2022, Venus is known for hacking into victims’ publicly-exposed Remote Desktop services to encrypt Windows devices.

Holden said the internal discussions among the Venus group members indicate this gang has no problem gaining access to victim organizations.

“The Venus group has problems getting paid,” Holden said. “They are targeting a lot of U.S. companies, but nobody wants to pay them.”

Which might explain why their latest scheme centers on trying to frame executives at public companies for insider trading charges. Venus indicated it recently had success with a method that involves carefully editing one or more email inbox files at a victim firm — to insert messages discussing plans to trade large volumes of the company’s stock based on non-public information.

“We imitate correspondence of the [CEO] with a certain insider who shares financial reports of his companies through which your victim allegedly trades in the stock market, which naturally is a criminal offense and — according to US federal laws [includes the possibility of up to] 20 years in prison,” one Venus member wrote to an underling.

“You need to create this file and inject into the machine(s) like this so that metadata would say that they were created on his computer,” they continued. “One of my clients did it, I don’t know how. In addition to pst, you need to decompose several files into different places, so that metadata says the files are native from a certain date and time rather than created yesterday on an unknown machine.”

Holden said it’s not easy to plant emails into an inbox, but it can be done with Microsoft Outlook .pst files, which the attackers may also have access to if they’d already compromised a victim network.

“It’s not going to be forensically solid, but that’s not what they care about,” he said. “It still has the potential to be a huge scandal — at least for a while — when a victim is being threatened with the publication or release of these records.”

The Venus ransom group’s extortion note. Image: Tripwire.com

Holden said the CLOP ransomware gang has a different problem of late: Not enough victims. The intercepted CLOP communication seen by KrebsOnSecurity shows the group bragged about twice having success infiltrating new victims in the healthcare industry by sending them infected files disguised as ultrasound images or other medical documents for a patient seeking a remote consultation.

The CLOP members said one tried-and-true method of infecting healthcare providers involved gathering healthcare insurance and payment data to use in submitting requests for a remote consultation on a patient who has cirrhosis of the liver.

“Basically, they’re counting on doctors or nurses reviewing the patient’s chart and scans just before the appointment,” Holden said. “They initially discussed going in with cardiovascular issues, but decided cirrhosis or fibrosis of the liver would be more likely to be diagnosable remotely from existing test results and scans.”

While CLOP as a money making collective is a fairly young organization, security experts say CLOP members hail from a group of Threat Actors (TA) known as “TA505,” which MITRE’s ATT&CK database says is a financially motivated cybercrime group that has been active since at least 2014. “This group is known for frequently changing malware and driving global trends in criminal malware distribution,” MITRE assessed.

In April, 2021, KrebsOnSecurity detailed how CLOP helped pioneer another innovation aimed at pushing more victims into paying an extortion demand: Emailing the ransomware victim’s customers and partners directly and warning that their data would be leaked to the dark web unless they can convince the victim firm to pay up.

Security firm Tripwire points out that the HHS advisory on Venus says multiple threat actor groups are likely distributing the Venus ransomware. Tripwire’s tips for all organizations on avoiding ransomware attacks include:

  • Making secure offsite backups.
  • Running up-to-date security solutions and ensuring that your computers are protected with the latest security patches against vulnerabilities.
  • Using hard-to-crack unique passwords to protect sensitive data and accounts, as well as enabling multi-factor authentication.
  • Encrypting sensitive data wherever possible.
  • Continuously educating and informing staff about the risks and methods used by cybercriminals to launch attacks and steal data.

While the above tips are important and useful, one critical area of ransomware preparedness overlooked by too many organizations is the need to develop — and then periodically rehearse — a plan for how everyone in the organization should respond in the event of a ransomware or data ransom incident. Drilling this breach response plan is key because it helps expose weaknesses in those plans that could be exploited by the intruders.

As noted in last year’s story Don’t Wanna Pay Ransom Gangs? Test Your Backups, experts say the biggest reason ransomware targets and/or their insurance providers still pay when they already have reliable backups of their systems and data is that nobody at the victim organization bothered to test in advance how long this data restoration process might take.

“Suddenly the victim notices they have a couple of petabytes of data to restore over the Internet, and they realize that even with their fast connections it’s going to take three months to download all these backup files,” said Fabian Wosar, chief technology officer at Emsisoft. “A lot of IT teams never actually make even a back-of-the-napkin calculation of how long it would take them to restore from a data rate perspective.”

ConnectWise Quietly Patches Flaw That Helps Phishers

By BrianKrebs

ConnectWise, which offers a self-hosted, remote desktop software application that is widely used by Managed Service Providers (MSPs), is warning about an unusually sophisticated phishing attack that can let attackers take remote control over user systems when recipients click the included link. The warning comes just weeks after the company quietly patched a vulnerability that makes it easier for phishers to launch these attacks.

A phishing attack targeting MSP customers using ConnectWise.

ConnectWise Control is extremely popular among MSPs that manage, protect and service large numbers of computers remotely for client organizations. Their product provides a dynamic software client and hosted server that connects two or more computers together, and provides temporary or persistent remote access to those client systems.

When a support technician wants to use it to remotely administer a computer, the ConnectWise website generates an executable file that is digitally signed by ConnectWise and downloadable by the client via a hyperlink.

When the remote user in need of assistance clicks the link, their computer is then directly connected to the computer of the remote administrator, who can then control the client’s computer as if they were seated in front of it.

While modern Microsoft Windows operating systems by default will ask users whether they want to run a downloaded executable file, many systems set up for remote administration by MSPs disable that user account control feature for this particular application.

In October, security researcher Ken Pyle alerted ConnectWise that their client executable file gets generated based on client-controlled parameters. Meaning, an attacker could craft a ConnectWise Control client download link that would bounce or proxy the remote connection from the MSP’s servers to a server that the attacker controls.

This is dangerous because many organizations that rely on MSPs to manage their computers often set up their networks so that only remote assistance connections coming from their MSP’s networks are allowed.

Using a free ConnectWise trial account, Pyle showed the company how easy it was to create a client executable that is cryptographically signed by ConnectWise and can bypass those network restrictions by bouncing the connection through an attacker’s ConnectWise Control server.

“You as the attacker have full control over the link’s parameters, and that link gets injected into an executable file that is downloaded by the client through an unauthenticated Web interface,” said Pyle, a partner and exploit developer at the security firm Cybir. “I can send this link to a victim, they will click this link, and their workstation will connect back to my instance via a link on your site.”

A composite of screenshots researcher Ken Pyle put together to illustrate the ScreenConnect vulnerability.

On Nov. 29, roughly the same time Pyle published a blog post about his findings, ConnectWise issued an advisory warning users to be on guard against a new round email phishing attempts that mimic legitimate email alerts the company sends when it detects unusual activity on a customer account.

“We are aware of a phishing campaign that mimics ConnectWise Control New Login Alert emails and has the potential to lead to unauthorized access to legitimate Control instances,” the company said.

ConnectWise said it released software updates last month that included new protections against the misdirection vulnerability that Pyle reported.  But the company said there is no reason to believe the phishers they warned about are exploiting any of the issues reported by Pyle.

“Our team quickly triaged the report and determined the risk to partners to be minimal,” said Patrick Beggs, ConnectWise’s chief information security officer. “Nevertheless, the mitigation was simple and presented no risk to partner experience, so we put it into the then-stable 22.8 build and the then-canary 22.9 build, which were released as part of our normal release processes. Due to the low severity of the issue, we didn’t (and don’t plan to) issue a security advisory or alert, since we reserve those notifications for serious security issues.”

Beggs said the phishing attacks that sparked their advisory stemmed from an instance that was not hosted by ConnectWise.

“So we can confirm they are unrelated,” he said. “Unfortunately, phishing attacks happen far too regularly across a variety of industries and products. The timing of our advisory and Mr. Pyle’s blog were coincidental. That said, we’re all for raising more awareness of the seriousness of phishing attacks and the general importance of staying alert and aware of potentially dangerous content.”

The ConnectWise advisory warned users that before clicking any link that appears to come from their service, users should validate the content includes “domains owned by trusted sources,” and “links to go to places you recognize.”

But Pyle said this advice is not terribly useful for customers targeted in his attack scenario because the phishers can send emails directly from ConnectWise, and the short link that gets presented to the user is a wildcard domain that ends in ConnectWise Control’s own domain name — screenconnect.com. What’s more, examining the exceedingly long link generated by ConnectWise’s systems offers few insights to the average user.

“It’s signed by ConnectWise and comes from them, and if you sign up for a free trial instance, you can email people invites directly from them,” Pyle said.

ConnectWise’s warnings come amid breach reports from another major provider of remote support technologies: GoTo disclosed on Nov. 30 that it is investigating a security incident involving “unusual activity within our development environment and third-party cloud storage services. The third-party cloud storage service is currently shared by both GoTo and its affiliate, the password manager service LastPass.

In its own advisory on the incident, LastPass said they believe the intruders leveraged information stolen during a previous intrusion in August 2022 to gain access to “certain elements of our customers’ information.”  However, LastPass maintains that its “customer passwords remain safely encrypted due to LastPass’s Zero Knowledge architecture.”

In short, that architecture means if you lose or forget your all-important master LastPass password — the one needed to unlock access to all of your other passwords stored with them — LastPass can’t help you with that, because they don’t store it. But that same architecture theoretically means that hackers who might break into LastPass’s networks can’t access that information either.

Update, 7:25 p.m. ET: Included statement from ConnectWise CISO.

U.S. Govt. Apps Bundled Russian Code With Ties to Mobile Malware Developer

By BrianKrebs

A recent scoop by Reuters revealed that mobile apps for the U.S. Army and the Centers for Disease Control and Prevention (CDC) were integrating software that sends visitor data to a Russian company called Pushwoosh, which claims to be based in the United States. But that story omitted an important historical detail about Pushwoosh: In 2013, one of its developers admitted to authoring the Pincer Trojan, malware designed to surreptitiously intercept and forward text messages from Android mobile devices.

Pushwoosh says it is a U.S. based company that provides code for software developers to profile smartphone app users based on their online activity, allowing them to send tailor-made notifications. But a recent investigation by Reuters raised questions about the company’s real location and truthfulness.

The Army told Reuters it removed an app containing Pushwoosh in March, citing “security concerns.” The Army app was used by soldiers at one of the nation’s main combat training bases.

Reuters said the CDC likewise recently removed Pushwoosh code from its app over security concerns, after reporters informed the agency Pushwoosh was not based in the Washington D.C. area — as the company had represented — but was instead operated from Novosibirsk, Russia.

Pushwoosh’s software also was found in apps for “a wide array of international companies, influential nonprofits and government agencies from global consumer goods company Unilever and the Union of European Football Associations (UEFA) to the politically powerful U.S. gun lobby, the National Rifle Association (NRA), and Britain’s Labour Party.”

The company’s founder Max Konev told Reuters Pushwoosh “has no connection with the Russian government of any kind” and that it stores its data in the United States and Germany.

But Reuters found that while Pushwoosh’s social media and U.S. regulatory filings present it as a U.S. company based variously in California, Maryland and Washington, D.C., the company’s employees are located in Novosibirsk, Russia.

Reuters also learned that the company’s address in California does not exist, and that two LinkedIn accounts for Pushwoosh employees in Washington, D.C. were fake.

“Pushwoosh never mentioned it was Russian-based in eight annual filings in the U.S. state of Delaware, where it is registered, an omission which could violate state law,” Reuters reported.

Pushwoosh admitted the LinkedIn profiles were fake, but said they were created by a marketing firm to drum up business for the company — not misrepresent its location.

Pushwoosh told Reuters it used addresses in the Washington, D.C. area to “receive business correspondence” during the coronavirus pandemic. A review of the Pushwoosh founder’s online presence via Constella Intelligence shows his Pushwoosh email address was tied to a phone number in Washington, D.C. that was also connected to email addresses and account profiles for over a dozen other Pushwoosh employees.

Pushwoosh was incorporated in Novosibirsk, Russia in 2016.

THE PINCER TROJAN CONNECTION

The dust-up over Pushwoosh came in part from data gathered by Zach Edwards, a security researcher who until recently worked for the Internet Safety Labs, a nonprofit organization that funds research into online threats.

Edwards said Pushwoosh began as Arello-Mobile, and for several years the two co-branded — appearing side by side at various technology expos. Around 2016, he said, the two companies both started using the Pushwoosh name.

A search on Pushwoosh’s code base shows that one of the company’s longtime developers is a 41-year-old from Novosibirsk named Yuri Shmakov. In 2013, KrebsOnSecurity interviewed Shmakov for the story, “Who Wrote the Pincer Android Trojan?” wherein Shmakov acknowledged writing the malware as a freelance project.

Shmakov told me that, based on the client’s specifications, he suspected it might ultimately be put to nefarious uses. Even so, he completed the job and signed his work by including his nickname in the app’s code.

“I was working on this app for some months, and I was hoping that it would be really helpful,” Shmakov wrote. “[The] idea of this app is that you can set it up as a spam filter…block some calls and SMS remotely, from a Web service. I hoped that this will be [some kind of] blacklist, with logging about blocked [messages/calls]. But of course, I understood that client [did] not really want this.”

Shmakov did not respond to requests for comment. His LinkedIn profile says he stopped working for Arello Mobile in 2016, and that he currently is employed full-time as the Android team leader at an online betting company.

In a blog post responding to the Reuters story, Pushwoosh said it is a privately held company incorporated under the state laws of Delaware, USA, and that Pushwoosh Inc. was never owned by any company registered in the Russian Federation.

“Pushwoosh Inc. used to outsource development parts of the product to the Russian company in Novosibirsk, mentioned in the article,” the company said. “However, in February 2022, Pushwoosh Inc. terminated the contract.”

However, Edwards noted that dozens of developer subdomains on Pushwoosh’s main domain still point to JSC Avantel, an Internet provider based in Novosibirsk, Russia.

WAR GAMES

Pushwoosh employees posing at a company laser tag event.

Edwards said the U.S. Army’s app had a custom Pushwoosh configuration that did not appear on any other customer implementation.

“It had an extremely custom setup that existed nowhere else,” Edwards said. “Originally, it was an in-app Web browser, where it integrated a Pushwoosh javascript so that any time a user clicked on links, data went out to Pushwoosh and they could push back whatever they wanted through the in-app browser.”

An Army Times article published the day after the Reuters story ran said at least 1,000 people downloaded the app, which “delivered updates for troops at the National Training Center on Fort Irwin, Calif., a critical waypoint for deploying units to test their battlefield prowess before heading overseas.”

In April 2022, roughly 4,500 Army personnel converged on the National Training Center for a war games exercise on how to use lessons learned from Russia’s war against Ukraine to prepare for future fights against a major adversary such as Russia or China.

Edwards said despite Pushwoosh’s many prevarications, the company’s software doesn’t appear to have done anything untoward to its customers or users.

“Nothing they did has been seen to be malicious,” he said. “Other than completely lying about where they are, where their data is being hosted, and where they have infrastructure.”

GOV 311

Edwards also found Pushwoosh’s technology embedded in nearly two dozen mobile apps that were sold to cities and towns across Illinois as a way to help citizens access general information about their local communities and officials.

The Illinois apps that bundled Pushwoosh’s technology were produced by a company called Government 311, which is owned by Bill McCarty, the current director of the Springfield Office of Budget and Management. A 2014 story in The State Journal-Register said Gov 311’s pricing was based on population, and that the app would cost around $2,500 per year for a city with approximately 25,000 people.

McCarty told KrebsOnSecurity that his company stopped using Pushwoosh “years ago,” and that it now relies on its own technology to provide push notifications through its 311 apps.

But Edwards found some of the 311 apps still try to phone home to Pushwoosh, such as the 311 app for Riverton, Ill.

“Riverton ceased being a client several years ago, which [is] probably why their app was never updated to change out Pushwoosh,” McCarty explained. “We are in the process of updating all client apps and a website refresh. As part of that, old unused apps like Riverton 311 will be deleted.”

FOREIGN ADTECH THREAT?

Edwards said it’s far from clear how many other state and local government apps and Web sites rely on technology that sends user data to U.S. adversaries overseas. In July, Congress introduced an amended version of the Intelligence Authorization Act for 2023, which included a new section focusing on data drawn from online ad auctions that could be used to geolocate individuals or gain other information about them.

Business Insider reports that if this section makes it into the final version — which the Senate also has to pass — the Office for the Director of National Intelligence (ODNI) will have 60 days after the Act becomes law to produce a risk assessment. The assessment will look into “the counterintelligence risks of, and the exposure of intelligence community personnel to, tracking by foreign adversaries through advertising technology data,” the Act states.

Edwards says he’s hoping those changes pass, because what he found with Pushwoosh is likely just a drop in a bucket.

“I’m hoping that Congress acts on that,” he said. “If they were to put a requirement that there’s an annual audit of risks from foreign ad tech, that would at least force people to identify and document those connections.”

Report: Big U.S. Banks Are Stiffing Account Takeover Victims

By BrianKrebs

When U.S. consumers have their online bank accounts hijacked and plundered by hackers, U.S. financial institutions are legally obligated to reverse any unauthorized transactions as long as the victim reports the fraud in a timely manner. But new data released this week suggests that for some of the nation’s largest banks, reimbursing account takeover victims has become more the exception than the rule.

The findings came in a report released by Sen. Elizabeth Warren (D-Mass.), who in April 2022 opened an investigation into fraud tied to Zelle, the “peer-to-peer” digital payment service used by many financial institutions that allows customers to quickly send cash to friends and family.

Zelle is run by Early Warning Services LLC (EWS), a private financial services company which is jointly owned by Bank of America, Capital One, JPMorgan Chase, PNC Bank, Truist, U.S. Bank, and Wells Fargo. Zelle is enabled by default for customers at over 1,000 different financial institutions, even if a great many customers still don’t know it’s there.

Sen. Warren said several of the EWS owner banks — including Capital One, JPMorgan and Wells Fargo — failed to provide all of the requested data. But Warren did get the requested information from PNC, Truist and U.S. Bank.

“Overall, the three banks that provided complete data sets reported 35,848 cases of scams, involving over $25.9 million of payments in 2021 and the first half of 2022,” the report summarized. “In the vast majority of these cases, the banks did not repay the customers that reported being scammed. Overall these three banks reported repaying customers in only 3,473 cases (representing nearly 10% of scam claims) and repaid only $2.9 million.”

Importantly, the report distinguishes between cases that involve straight up bank account takeovers and unauthorized transfers (fraud), and those losses that stem from “fraudulently induced payments,” where the victim is tricked into authorizing the transfer of funds to scammers (scams).

A common example of the latter is the Zelle Fraud Scam, which uses an ever-shifting set of come-ons to trick people into transferring money to fraudsters. The Zelle Fraud Scam often employs text messages and phone calls spoofed to look like they came from your bank, and the scam usually relates to fooling the customer into thinking they’re sending money to themselves when they’re really sending it to the crooks.

Here’s the rub: When a customer issues a payment order to their bank, the bank is obligated to honor that order so long as it passes a two-stage test. The first question asks, Did the request actually come from an authorized owner or signer on the account? In the case of Zelle scams, the answer is yes.

Trace Fooshee, a strategic advisor in the anti money laundering practice at Aite-Novarica, said the second stage requires banks to give the customer’s transfer order a kind of “sniff test” using “commercially reasonable” fraud controls that generally are not designed to detect patterns involving social engineering.

Fooshee said the legal phrase “commercially reasonable” is the primary reason why no bank has much — if anything — in the way of controlling for scam detection.

“In order for them to deploy something that would detect a good chunk of fraud on something so hard to detect they would generate egregiously high rates of false positives which would also make consumers (and, then, regulators) very unhappy,” Fooshee said. “This would tank the business case for the service as a whole rendering it something that the bank can claim to NOT be commercially reasonable.”

Sen. Warren’s report makes clear that banks generally do not pay consumers back if they are fraudulently induced into making Zelle payments.

“In simple terms, Zelle indicated that it would provide redress for users in cases of unauthorized transfers in which a user’s account is accessed by a bad actor and used to transfer a payment,” the report continued. “However, EWS’ response also indicated that neither Zelle nor its parent bank owners would reimburse users fraudulently induced by a bad actor into making a payment on the platform.”

Still, the data suggest banks did repay at least some of the funds stolen from scam victims about 10 percent of the time. Fooshee said he’s surprised that number is so high.

“That banks are paying victims of authorized payment fraud scams anything at all is noteworthy,” he said. “That’s money that they’re paying for out of pocket almost entirely for goodwill. You could argue that repaying all victims is a sound strategy especially in the climate we’re in but to say that it should be what all banks do remains an opinion until Congress changes the law.”

UNAUTHORIZED FRAUD

However, when it comes to reimbursing victims of fraud and account takeovers, the report suggests banks are stiffing their customers whenever they can get away with it. “Overall, the four banks that provided complete data sets indicated that they reimbursed only 47% of the dollar amount of fraud claims they received,” the report notes.

How did the banks behave individually? From the report:

-In 2021 and the first six months of 2022, PNC Bank indicated that its customers reported 10,683 cases of unauthorized payments totaling over $10.6 million, of which only 1,495 cases totaling $1.46 were refunded to consumers. PNC Bank left 86% of its customers that reported cases of fraud without recourse for fraudulent activity that occurred on Zelle.

-Over this same time period, U.S. Bank customers reported a total of 28,642 cases of unauthorized transactions totaling over $16.2 million, while only refunding 8,242 cases totaling less than $4.7 million.

-In the period between January 2021 and September 2022, Bank of America customers reported 81,797 cases of unauthorized transactions, totaling $125 million. Bank of America refunded only $56.1 million in fraud claims – less than 45% of the overall dollar value of claims made in that time.

Truist indicated that the bank had a much better record of reimbursing defrauded customers over this same time period. During 2021 and the first half of 2022, Truist customers filed 24,752 unauthorized transaction claims amounting to $24.4 million. Truist reimbursed 20,349 of those claims, totaling $20.8 million – 82% of Truist claims were reimbursed over this period. Overall, however, the four banks that provided complete data sets indicated that they reimbursed only 47% of the dollar amount of fraud claims they received.

Fooshee said there has long been a great deal of inconsistency in how banks reimburse unauthorized fraud claims — even after the Consumer Financial Protection Bureau (CPFB) came out with guidance on what qualifies as an unauthorized fraud claim.

“Many banks reported that they were still not living up to those standards,” he said. “As a result, I imagine that the CFPB will come down hard on those with fines and we’ll see a correction.”

Fooshee said many banks have recently adjusted their reimbursement policies to bring them more into line with the CFPB’s guidance from last year.

“So this is heading in the right direction but not with sufficient vigor and speed to satisfy critics,” he said.

Seth Ruden is a payments fraud expert who serves as director of global advisory for digital identity company BioCatch. Ruden said Zelle has recently made “significant changes to its fraud program oversight because of consumer influence.”

“It is clear to me that despite sensational headlines, progress has been made to improve outcomes,” Ruden said. “Presently, losses in the network on a volume-adjusted basis are lower than those typical of credit cards.”

But he said any failure to reimburse victims of fraud and account takeovers only adds to pressure on Congress to do more to help victims of those scammed into authorizing Zelle payments.

“The bottom line is that regulations have not kept up with the speed of payment technology in the United States, and we’re not alone,” Ruden said. “For the first time in the UK, authorized payment scam losses have outpaced credit card losses and a regulatory response is now on the table. Banks have the choice right now to take action and increase controls or await regulators to impose a new regulatory environment.”

Sen. Warren’s report is available here (PDF).

There are, of course, some versions of the Zelle fraud scam that may be confusing financial institutions as to what constitutes “authorized” payment instructions. For example, the variant I wrote about earlier this year began with a text message that spoofed the target’s bank and warned of a pending suspicious transfer.

Those who responded at all received a call from a number spoofed to make it look like the victim’s bank calling, and were asked to validate their identities by reading back a one-time password sent via SMS. In reality, the thieves had simply asked the bank’s website to reset the victim’s password, and that one-time code sent via text by the bank’s site was the only thing the crooks needed to reset the target’s password and drain the account using Zelle.

None of the above discussion involves the risks affecting businesses that bank online. Businesses in the United States do not enjoy the same fraud liability protection afforded to consumers, and if a banking trojan or clever phishing site results in a business account getting drained, most banks will not reimburse that loss.

This is why I have always and will continue to urge small business owners to conduct their online banking affairs only from a dedicated, access restricted and security-hardened device — and preferably a non-Windows machine.

For consumers, the same old advice remains the best: Watch your bank statements like a hawk, and immediately report and contest any charges that appear fraudulent or unauthorized.

Glut of Fake LinkedIn Profiles Pits HR Against the Bots

By BrianKrebs

A recent proliferation of phony executive profiles on LinkedIn is creating something of an identity crisis for the business networking site, and for companies that rely on it to hire and screen prospective employees. The fabricated LinkedIn identities — which pair AI-generated profile photos with text lifted from legitimate accounts — are creating major headaches for corporate HR departments and for those managing invite-only LinkedIn groups.

Some of the fake profiles flagged by the co-administrator of a popular sustainability group on LinkedIn.

Last week, KrebsOnSecurity examined a flood of inauthentic LinkedIn profiles all claiming Chief Information Security Officer (CISO) roles at various Fortune 500 companies, including Biogen, Chevron, ExxonMobil, and Hewlett Packard.

Since then, the response from LinkedIn users and readers has made clear that these phony profiles are showing up en masse for virtually all executive roles — but particularly for jobs and industries that are adjacent to recent global events and news trends.

Hamish Taylor runs the Sustainability Professionals group on LinkedIn, which has more than 300,000 members. Together with the group’s co-owner, Taylor said they’ve blocked more than 12,700 suspected fake profiles so far this year, including dozens of recent accounts that Taylor describes as “cynical attempts to exploit Humanitarian Relief and Crisis Relief experts.”

“We receive over 500 fake profile requests to join on a weekly basis,” Taylor said. “It’s hit like hell since about January of this year. Prior to that we did not get the swarms of fakes that we now experience.”

The opening slide for a plea by Taylor’s group to LinkedIn.

Taylor recently posted an entry on LinkedIn titled, “The Fake ID Crisis on LinkedIn,” which lampooned the “60 Least Wanted ‘Crisis Relief Experts’ — fake profiles that claimed to be experts in disaster recovery efforts in the wake of recent hurricanes. The images above and below show just one such swarm of profiles the group flagged as inauthentic. Virtually all of these profiles were removed from LinkedIn after KrebsOnSecurity tweeted about them last week.

Another “swarm” of LinkedIn bot accounts flagged by Taylor’s group.

Mark Miller is the owner of the DevOps group on LinkedIn, and says he deals with fake profiles on a daily basis — often hundreds per day. What Taylor called “swarms” of fake accounts Miller described instead as “waves” of incoming requests from phony accounts.

“When a bot tries to infiltrate the group, it does so in waves,” Miller said. “We’ll see 20-30 requests come in with the same type of information in the profiles.”

After screenshotting the waves of suspected fake profile requests, Miller started sending the images to LinkedIn’s abuse teams, which told him they would review his request but that he may never be notified of any action taken.

Some of the bot profiles identified by Mark Miller that were seeking access to his DevOps LinkedIn group. Miller said these profiles are all listed in the order they appeared.

Miller said that after months of complaining and sharing fake profile information with LinkedIn, the social media network appeared to do something which caused the volume of group membership requests from phony accounts to drop precipitously.

“I wrote our LinkedIn rep and said we were considering closing the group down the bots were so bad,” Miller said. “I said, ‘You guys should be doing something on the backend to block this.”

Jason Lathrop is vice president of technology and operations at ISOutsource, a Seattle-based consulting firm with roughly 100 employees. Like Miller, Lathrop’s experience in fighting bot profiles on LinkedIn suggests the social networking giant will eventually respond to complaints about inauthentic accounts. That is, if affected users complain loudly enough (posting about it publicly on LinkedIn seems to help).

Lathrop said that about two months ago his employer noticed waves of new followers, and identified more than 3,000 followers that all shared various elements, such as profile photos or text descriptions.

“Then I noticed that they all claim to work for us at some random title within the organization,” Lathrop said in an interview with KrebsOnSecurity. “When we complained to LinkedIn, they’d tell us these profiles didn’t violate their community guidelines. But like heck they don’t! These people don’t exist, and they’re claiming they work for us!”

Lathrop said that after his company’s third complaint, a LinkedIn representative responded by asking ISOutsource to send a spreadsheet listing every legitimate employee in the company, and their corresponding profile links.

Not long after that, the phony profiles that were not on the company’s list were deleted from LinkedIn. Lathrop said he’s still not sure how they’re going to handle getting new employees allowed into their company on LinkedIn going forward.

It remains unclear why LinkedIn has been flooded with so many fake profiles lately, or how the phony profile photos are sourced. Random testing of the profile photos shows they resemble but do not match other photos posted online. Several readers pointed out one likely source — the website thispersondoesnotexist.com, which makes using artificial intelligence to create unique headshots a point-and-click exercise.

Cybersecurity firm Mandiant (recently acquired by Googletold Bloomberg that hackers working for the North Korean government have been copying resumes and profiles from leading job listing platforms LinkedIn and Indeed, as part of an elaborate scheme to land jobs at cryptocurrency firms.

Fake profiles also may be tied to so-called “pig butchering” scams, wherein people are lured by flirtatious strangers online into investing in cryptocurrency trading platforms that eventually seize any funds when victims try to cash out.

In addition, identity thieves have been known to masquerade on LinkedIn as job recruiters, collecting personal and financial information from people who fall for employment scams.

But the Sustainability Group administrator Taylor said the bots he’s tracked strangely don’t respond to messages, nor do they appear to try to post content.

“Clearly they are not monitored,” Taylor assessed. “Or they’re just created and then left to fester.”

This experience was shared by the DevOp group admin Miller, who said he’s also tried baiting the phony profiles with messages referencing their fakeness. Miller says he’s worried someone is creating a massive social network of bots for some future attack in which the automated accounts may be used to amplify false information online, or at least muddle the truth.

“It’s almost like someone is setting up a huge bot network so that when there’s a big message that needs to go out they can just mass post with all these fake profiles,” Miller said.

In last week’s story on this topic, I suggested LinkedIn could take one simple step that would make it far easier for people to make informed decisions about whether to trust a given profile: Add a “created on” date for every profile. Twitter does this, and it’s enormously helpful for filtering out a great deal of noise and unwanted communications.

Many of our readers on Twitter said LinkedIn needs to give employers more tools — perhaps some kind of application programming interface (API) — that would allow them to quickly remove profiles that falsely claim to be employed at their organizations.

Another reader suggested LinkedIn also could experiment with offering something akin to Twitter’s verified mark to users who chose to validate that they can respond to email at the domain associated with their stated current employer.

In response to questions from KrebsOnSecurity, LinkedIn said it was considering the domain verification idea.

“This is an ongoing challenge and we’re constantly improving our systems to stop fakes before they come online,” LinkedIn said in a written statement. “We do stop the vast majority of fraudulent activity we detect in our community – around 96% of fake accounts and around 99.1% of spam and scams. We’re also exploring new ways to protect our members such as expanding email domain verification. Our community is all about authentic people having meaningful conversations and to always increase the legitimacy and quality of our community.”

In a story published Wednesday, Bloomberg noted that LinkedIn has largely so far avoided the scandals about bots that have plagued networks like Facebook and Twitter. But that shine is starting to come off, as more users are forced to waste more of their time fighting off inauthentic accounts.

“What’s clear is that LinkedIn’s cachet as being the social network for serious professionals makes it the perfect platform for lulling members into a false sense of security,” Bloomberg’s Tim Cuplan wrote. “Exacerbating the security risk is the vast amount of data that LinkedIn collates and publishes, and which underpins its whole business model but which lacks any robust verification mechanisms.”

Microsoft: Two New 0-Day Flaws in Exchange Server

By BrianKrebs

Microsoft Corp. is investigating reports that attackers are exploiting two previously unknown vulnerabilities in Exchange Server, a technology many organizations rely on to send and receive email. Microsoft says it is expediting work on software patches to plug the security holes. In the meantime, it is urging a subset of Exchange customers to enable a setting that could help mitigate ongoing attacks.

In customer guidance released Thursday, Microsoft said it is investigating two reported zero-day flaws affecting Microsoft Exchange Server 2013, 2016, and 2019. CVE-2022-41040, is a Server-Side Request Forgery (SSRF) vulnerability that can enable an authenticated attacker to remotely trigger the second zero-day vulnerability — CVE-2022-41082 — which allows remote code execution (RCE) when PowerShell is accessible to the attacker.

Microsoft said Exchange Online has detections and mitigation in place to protect customers. Customers using on-premises Microsoft Exchange servers are urged to review the mitigations suggested in the security advisory, which Microsoft says should block the known attack patterns.

Vietnamese security firm GTSC on Thursday published a writeup on the two Exchange zero-day flaws, saying it first observed the attacks in early August being used to drop “webshells.” These web-based backdoors offer attackers an easy-to-use, password-protected hacking tool that can be accessed over the Internet from any browser.

“We detected webshells, mostly obfuscated, being dropped to Exchange servers,” GTSC wrote. “Using the user-agent, we detected that the attacker uses Antsword, an active Chinese-based opensource cross-platform website administration tool that supports webshell management. We suspect that these come from a Chinese attack group because the webshell codepage is 936, which is a Microsoft character encoding for simplified Chinese.”

GTSC’s advisory includes details about post-compromise activity and related malware, as well as steps it took to help customers respond to active compromises of their Exchange Server environment. But the company said it would withhold more technical details of the vulnerabilities for now.

In March 2021, hundreds of thousands of organizations worldwide had their email stolen and multiple backdoor webshells installed, all thanks to four zero-day vulnerabilities in Exchange Server.

Granted, the zero-day flaws that powered that debacle were far more critical than the two detailed this week, and there are no signs yet that exploit code has been publicly released (that will likely change soon). But part of what made last year’s Exchange Server mass hack so pervasive was that vulnerable organizations had little or no advance notice on what to look for before their Exchange Server environments were completely owned by multiple attackers.

Microsoft is quick to point out that these zero-day flaws require an attacker to have a valid username and password for an Exchange user, but this may not be such a tall order for the hackers behind these latest exploits against Exchange Server.

Steven Adair is president of Volexity, the Virginia-based cybersecurity firm that was among the first to sound the alarm about the Exchange zero-days targeted in the 2021 mass hack. Adair said GTSC’s writeup includes an Internet address used by the attackers that Volexity has tied with high confidence to a China-based hacking group that has recently been observed phishing Exchange users for their credentials.

In February 2022, Volexity warned that this same Chinese hacking group was behind the mass exploitation of a zero-day vulnerability in the Zimbra Collaboration Suite, which is a competitor to Microsoft Exchange that many enterprises use to manage email and other forms of messaging.

If your organization runs Exchange Server, please consider reviewing the Microsoft mitigations and the GTSC post-mortem on their investigations.

Fake CISO Profiles on LinkedIn Target Fortune 500s

By BrianKrebs

Someone has recently created a large number of fake LinkedIn profiles for Chief Information Security Officer (CISO) roles at some of the world’s largest corporations. It’s not clear who’s behind this network of fake CISOs or what their intentions may be. But the fabricated LinkedIn identities are confusing search engine results for CISO roles at major companies, and they are being indexed as gospel by various downstream data-scraping sources.

If one searches LinkedIn for the CISO of the energy giant Chevron, one might find the profile for a Victor Sites, who says he’s from Westerville, Ohio and is a graduate of Texas A&M University.

The LinkedIn profile for Victor Sites, who is most certainly NOT the CISO of Chevron.

Of course, Sites is not the real CISO of Chevron. That role is currently occupied by Christopher Lukas of Danville, Calif. If you were confused at this point, you might ask Google who it thinks is the current Chief Information Security Officer of Chevron. When KrebsOnSecurity did that earlier this morning, the fake CISO profile was the very first search result returned (followed by the LinkedIn profile for the real Chevron CISO).

Helpfully, LinkedIn seems to be able to detect something in common about all these fake CISO profiles, because it suggested I view a number of them in the “People Also Viewed” column seen in the image above. There are two fake CISO profiles suggested there, including one for a Maryann Robles, who claims to be the CISO of another energy giant — ExxonMobil.

Maryann’s profile says she’s from Tupelo, Miss., and includes this detail about how she became a self-described “old-school geek.”

“Since playing Tradewars on my Tandy 1000 with a 300 baud modem in the early ’90s, I’ve had a lifelong passion for technology, which I’ve carried with me as Deputy CISO of the world’s largest health plan,” her profile reads.

However, this description appears to have been lifted from the profile for the real CISO at the Centers for Medicare & Medicaid Services in Baltimore, Md.

Interestingly, Maryann’s LinkedIn profile was accepted as truth by Cybercrime Magazine’s CISO 500 listing, which claims to maintain a list of the current CISOs at America’s largest companies:

The fake CISO for ExxOnMobil was indexed in Cybercrime Magazine’s CISO 500.

Rich Mason, the former CISO at Fortune 500 firm Honeywell, began warning his colleagues on LinkedIn about the phony profiles earlier this week.

“It’s interesting the downstream sources that repeat LinkedIn bogus content as truth,” Mason said. “This is dangerous, Apollo.io, Signalhire, and Cybersecurity Ventures.”

Google wasn’t fooled by the phony LinkedIn profile for Jennie Biller, who claims to be CISO at biotechnology giant Biogen (the real Biogen CISO is Russell Koste). But Biller’s profile is worth mentioning because it shows how some of these phony profiles appear to be quite hastily assembled. Case in point: Biller’s name and profile photo suggest she is female, however the “About” description of her accomplishments uses male pronouns. Also, it might help that Jennie only has 18 connections on LinkedIn.

Again, we don’t know much about who or what is behind these profiles, but in August the security firm Mandiant (recently acquired by Google) told Bloomberg that hackers working for the North Korean government have been copying resumes and profiles from leading job listing platforms LinkedIn and Indeed, as part of an elaborate scheme to land jobs at cryptocurrency firms.

None of the profiles listed here responded to requests for comment (or to become a connection).

In a statement provided to KrebsOnSecurity, LinkedIn said its teams were actively working to take these fake accounts down.

“We do have strong human and automated systems in place, and we’re continually improving, as fake account activity becomes more sophisticated,” the statement reads. “In our transparency report we share how our teams plus automated systems are stopping the vast majority of fraudulent activity we detect in our community – around 96% of fake accounts and around 99.1% of spam and scam.”

LinkedIn could take one simple step that would make it far easier for people to make informed decisions about whether to trust a given profile: Add a “created on” date for every profile. Twitter does this, and it’s enormously helpful for filtering out a great deal of noise and unwanted communications.

The former CISO Mason said LinkedIn also could experiment with offering something akin to Twitter’s verified mark to users who chose to validate that they can respond to email at the domain associated with their stated current employer.

“If I saw that a LinkedIn profile had been domain-validated, then my confidence in that profile would go way up,” Mason said, noting that many of the fake profiles had hundreds of followers, including dozens of real CISOs. Maryann’s profile grew by a hundred connections in just the past few days, he said.

“If we have CISOs that are falling for this, what hopes do the masses have?” Mason said.

Mason said LinkedIn also needs a more streamlined process for allowing employers to remove phony employee accounts. He recently tried to get a phony profile removed from LinkedIn for someone who falsely claimed to have worked for his company.

“I shot a note to LinkedIn and said please remove this, and they said, well, we have to contact that person and arbitrate this,” he said. “They gave the guy two weeks and he didn’t respond, so they took it down. But that doesn’t scale, and there needs to be a mechanism where an employer can contact LinkedIn and have these fake profiles taken down in less than two weeks.”

Botched Crypto Mugging Lands Three U.K. Men in Jail

By BrianKrebs

Three men in the United Kingdom were arrested this month for attempting to assault a local man and steal his virtual currencies. The incident is the latest example of how certain cybercriminal communities are increasingly turning to physical violence to settle scores and disputes.

Shortly after 11 p.m. on September 6, a resident in the Spalding Common area in the district of Lincolnshire, U.K. phoned police to say three men were acting suspiciously, and had jumped a nearby fence.

“The three men made off in a VW Golf and were shortly stopped nearby,” reads a statement by the Lincolnshire Police. “The car was searched by officers who found an imitation firearm, taser, a baseball bat and police uniform in the boot.”

Thomas Green, 23, Rayhan Miah, 23, and Leonardo Sapiano, 24 were all charged with possession of the weapons, and “with intent to cause loss to another to make an unwarranted demand of Crypto Currency from a person.”

KrebsOnSecurity has learned that the defendants were in Spalding Common to pay a surprise visit to a 19-year-old hacker known by the handles “Discoli,” “Disco Dog,” and “Chinese.” In December 2020, Discoli took credit for hacking and leaking the user database for OGUsers, a forum overrun with people looking to buy, sell and trade access to compromised social media accounts.

Reached via Telegram, Discoli confirmed that police believe the trio was trying to force their way into his home in Spalding Common, and that one of them was wearing a police uniform when they approached his residence.

“They were obvious about being fake police, so much so that one of our neighbours called,” Discoli said in an instant message chat. “That call led to the arrests. Their intent was for robbery/blackmail of crypto, I just happened to not be home at the time.”

The Lincolnshire Police declined to comment for this story, citing an ongoing investigation.

Discoli said he didn’t know any of the men charged, but believes they were hired by one of his enemies. And he said his would-be assailants didn’t just target him specifically.

“They had a list of people they wanted to hit consecutively as far as I know,” he said.

The foiled robbery is the latest drama tied to members of certain criminal hacking communities who are targeting one another with physical violence, by making a standing offer to pay thousands of dollars to anyone in the target’s region who agrees to carry out the assaults.

Last month, a 21-year-old New Jersey man was arrested and charged with stalking in connection with a federal investigation into groups of cybercriminals who are settling scores by hiring people to carry out physical attacks on their rivals.

Prosecutors say Patrick McGovern-Allen recently participated in several of these schemes — including firing a handgun into a Pennsylvania home and torching a residence in another part of the state with a Molotov Cocktail.

McGovern-Allen and the three U.K. defendants are part of an online community that is at the forefront of a dangerous escalation in coercion and intimidation tactics increasingly used by competing cybercriminal groups to steal cryptocurrency from one another and to keep their rivals in check.

The Telegram chat channels where these young men transact have hundreds to thousands of members each, and some of the more interesting solicitations on these communities are job offers for in-person assignments and tasks that can be found if one searches for posts titled, “If you live near,” or “IRL job” — short for “in real life” job.

A number of these classified ads are in service of performing “brickings,” where someone is hired to visit a specific address and toss a brick through the target’s window. Indeed, prior to McGovern-Allen’s arrest, his alleged Telegram persona bragged that he’d carried out several brickings for hire.

Many of the individuals involved in paying others to commit these physical attacks are also frequent participants in Telegram chat channels focused singularly on SIM swapping, a crime in which identity thieves hijack a target’s mobile phone number and use that to wrest control over the victim’s various online accounts and identities.

Unsurprisingly, the vast majority of people currently being targeted for brickings and other real-life physical assaults via Telegram tend to be other cybercriminals involved in SIM swapping crimes (or individuals on the periphery of that scene).

The United Kingdom is home to a number of young men accused of stealing millions of dollars worth of cryptocurrencies via SIM swapping. Joseph James O’Connor, a.k.a. “Plugwalk Joe”, was arrested in Spain in July 2021 under an FBI warrant on 10 counts of offenses related to unauthorized computer access and cyber bullying. U.S. investigators say O’Connor also played a central role in the 2020 intrusion at Twitter, wherein Twitter accounts for top celebrities and public figures were forced to tweet out links to cryptocurrency scams. O’Connor is currently fighting extradition to the United States.

Robert Lewis Barr, a 25-year-old Scottish man who allegedly stole more than $8 million worth of crypto, was arrested on an FBI warrant last year and is also fighting his extradition. U.S. investigators say Barr SIM swapped a U.S. bitcoin broker in 2017, and that he spent much of the stolen funds throwing lavish parties at rented luxury apartments in central Glasgow.

In many ways, these violence-as-a-service incidents are a natural extension of “swatting,” wherein fake bomb threats, hostage situations and other violent scenarios are phoned in to police as part of a scheme to trick them into visiting potentially deadly force on a target’s address. According to prosecutors, both Barr and O’Connor have a history of swatting their enemies and their SIM swapping victims.

Transacting in Person with Strangers from the Internet

By BrianKrebs

Communities like Craigslist, OfferUp, Facebook Marketplace and others are great for finding low- or no-cost stuff that one can pick up directly from a nearby seller, and for getting rid of useful things that don’t deserve to end up in a landfill. But when dealing with strangers from the Internet, there is always a risk that the person you’ve agreed to meet has other intentions.

Nearly all U.S. states now have designated safe trading stations — mostly at local police departments — which ensure that all transactions are handled in plain view of both the authorities and security cameras.

These safe trading places exist because sometimes in-person transactions from the Internet don’t end well for one or more parties involved. The website Craigslistkillers has catalogued news links for at least 132 murders linked to Craigslist transactions since 2015. Many of these killings involved high-priced items like automobiles and consumer electronics, where the prospective buyer apparently intended all along to kill the owner and steal the item offered for sale. Others were motivated simply by a desire to hurt people.

This is not to say that using Craigslist is uniquely risky or dangerous; I’m sure the vast majority of transactions generated by the site end amicably and without physical violence. And that probably holds true for all of Craigslist’s competitors.

Still, the risk of a deal going badly when one meets total strangers from the Internet is not zero, and so it’s only sensible to take a few simple precautions. For example, choosing to transact at a designated safe place such as a police station dramatically reduces the likelihood that anyone wishing you harm would even show up.

I recently stumbled upon one of these designated exchange places by accident, hence my interest in learning more about them. The one I encountered was at a Virginia county sheriff’s office, and it has two parking spots reserved with a sign that reads, “Internet Purchase & Exchange Location: This Area is Under 24 Hour Video Surveillance” [image above].

According to the list maintained at Safetradestations.com, there are four other such designated locations in Northern Virginia. And it appears most states now have them in at least some major cities. Safeexchangepoint.com also has a searchable index of safe trading locations in the United States and Canada.

Granted, not everyone is going to live close to one of these designated trading stations. Or maybe what you want to buy, sell or trade you’d rather not have recorded in front of police cameras. Either way, here are a few tips on staying safe while transacting in real life with strangers from the Internet (compliments of the aforementioned safe trading websites).

The safest exchange points are easily accessible and in a well-lit, public place where transactions are visible to others nearby. Try to arrange a meeting time that is during daylight hours, and consider bringing a friend along — especially when dealing with high-value items like laptops and smart phones.

Safeexchangepoint.com also advises that police or merchants that host their own exchange locations generally won’t get involved in the details of your transaction unless specified otherwise, and that many police departments (but not all) are willing to check the serial number of an item for sale to make sure it’s not known to be stolen property.

Of course, it’s not always practical or possible to haul that old sofa to the local police department, or a used car that isn’t working. In those situations, safetradestations.com has some decent suggestions:

  • Meet at a police station where you can exchange and photocopy each others’ identification papers, such as a driver’s license. Do NOT carry cash to this location.
  • Photocopy the license or identification paper, or use your phone to photograph it.
  • Email the ID information to a friend, or to someone trusted (not to yourself).
  • If you’re selling at home, or going to someone’s home, never be outnumbered. If you’re at home, make sure you have two or three people there — and tell the person who is coming that you will have others with you.
  • At home or an apartment, NEVER let someone go anywhere unaccompanied. Always make sure they are escorted.
  • Never let more than one group come to your home at one time to buy or sell.
  • Beware of common scams, like checks for an amount higher than the amount of the deal; “cashier’s checks” that are forged and presented when the bank is closed.
  • If you are given a cashier’s check, money order or other equivalent, call the bank — at the number listed online, not a number the buyer gives you — to verify the validity of the check.

Sounding the Alarm on Emergency Alert System Flaws

By BrianKrebs

The Department of Homeland Security (DHS) is urging states and localities to beef up security around proprietary devices that connect to the Emergency Alert System — a national public warning system used to deliver important emergency information, such as severe weather and AMBER alerts. The DHS warning came in advance of a workshop to be held this weekend at the DEFCON security conference in Las Vegas, where a security researcher is slated to demonstrate multiple weaknesses in the nationwide alert system.

A Digital Alert Systems EAS encoder/decoder that Pyle said he acquired off eBay in 2019. It had the username and password for the system printed on the machine.

The DHS warning was prompted by security researcher Ken Pyle, a partner at security firm Cybir. Pyle said he started acquiring old EAS equipment off of eBay in 2019, and that he quickly identified a number of serious security vulnerabilities in a device that is broadly used by states and localities to encode and decode EAS alert signals.

“I found all kinds of problems back then, and reported it to the DHS, FBI and the manufacturer,” Pyle said in an interview with KrebsOnSecurity. “But nothing ever happened. I decided I wasn’t going to tell anyone about it yet because I wanted to give people time to fix it.”

Pyle said he took up the research again in earnest after an angry mob stormed the U.S. Capitol on Jan. 6, 2021.

“I was sitting there thinking, ‘Holy shit, someone could start a civil war with this thing,”’ Pyle recalled. “I went back to see if this was still a problem, and it turns out it’s still a very big problem. So I decided that unless someone actually makes this public and talks about it, clearly nothing is going to be done about it.”

The EAS encoder/decoder devices Pyle acquired were made by Lyndonville, NY-based Digital Alert Systems (formerly Monroe Electronics, Inc.), which issued a security advisory this month saying it released patches in 2019 to fix the flaws reported by Pyle, but that some customers are still running outdated versions of the device’s firmware. That may be because the patches were included in version 4 of the firmware for the EAS devices, and many older models apparently do not support the new software.

“The vulnerabilities identified present a potentially serious risk, and we believe both were addressed in software updates issued beginning Oct 2019,” EAS said in a written statement. “We also provided attribution for the researcher’s responsible disclosure, allowing us to rectify the matters before making any public statements. We are aware that some users have not taken corrective actions and updated their software and should immediately take action to update the latest software version to ensure they are not at risk. Anything lower than version 4.1 should be updated immediately. On July 20, 2022, the researcher referred to other potential issues, and we trust the researcher will provide more detail. We will evaluate and work to issue any necessary mitigations as quickly as possible.”

But Pyle said a great many EAS stakeholders are still ignoring basic advice from the manufacturer, such as changing default passwords and placing the devices behind a firewall, not directly exposing them to the Internet, and restricting access only to trusted hosts and networks.

Pyle, in a selfie that is heavily redacted because the EAS device behind him had its user credentials printed on the lid.

Pyle said the biggest threat to the security of the EAS is that an attacker would only need to compromise a single EAS station to send out alerts locally that can be picked up by other EAS systems and retransmitted across the nation.

“The process for alerts is automated in most cases, hence, obtaining access to a device will allow you to pivot around,” he said. “There’s no centralized control of the EAS because these devices are designed such that someone locally can issue an alert, but there’s no central control over whether I am the one person who can send or whatever. If you are a local operator, you can send out nationwide alerts. That’s how easy it is to do this.”

One of the Digital Alert Systems devices Pyle sourced from an electronics recycler earlier this year was non-functioning, but whoever discarded it neglected to wipe the hard drive embedded in the machine. Pyle soon discovered the device contained the private cryptographic keys and other credentials needed to send alerts through Comcast, the nation’s third-largest cable company.

“I can issue and create my own alert here, which has all the valid checks or whatever for being a real alert station,” Pyle said in an interview earlier this month. “I can create a message that will start propagating through the EAS.”

Comcast told KrebsOnSecurity that “a third-party device used to deliver EAS alerts was lost in transit by a trusted shipping provider between two Comcast locations and subsequently obtained by a cybersecurity researcher.

“We’ve conducted a thorough investigation of this matter and have determined that no customer data, and no sensitive Comcast data, were compromised,” Comcast spokesperson David McGuire said.

The company said it also confirmed that the information included on the device can no longer be used to send false messages to Comcast customers or used to compromise devices within Comcast’s network, including EAS devices.

“We are taking steps to further ensure secure transfer of such devices going forward,” McGuire said. “Separately, we have conducted a thorough audit of all EAS devices on our network and confirmed that they are updated with currently available patches and are therefore not vulnerable to recently reported security issues. We’re grateful for the responsible disclosure and to the security research community for continuing to engage and share information with our teams to make our products and technologies ever more secure. Mr. Pyle informed us promptly of his research and worked with us as we took steps to validate his findings and ensure the security of our systems.”

The user interface for an EAS device.

Unauthorized EAS broadcast alerts have happened enough that there is a chronicle of EAS compromises over at fandom.com. Thankfully, most of these incidents have involved fairly obvious hoaxes.

According to the EAS wiki, in February 2013, hackers broke into the EAS networks in Great Falls, Mt. and Marquette, Mich. to broadcast an alert that zombies had risen from their graves in several counties. In Feb. 2017, an EAS station in Indiana also was hacked, with the intruders playing the same “zombies and dead bodies” audio from the 2013 incidents.

“On February 20 and February 21, 2020, Wave Broadband’s EASyCAP equipment was hacked due to the equipment’s default password not being changed,” the Wiki states. “Four alerts were broadcasted, two of which consisted of a Radiological Hazard Warning and a Required Monthly Test playing parts of the Hip Hop song Hot by artist Young Thug.”

In January 2018, Hawaii sent out an alert to cell phones, televisions and radios, warning everyone in the state that a missile was headed their way. It took 38 minutes for Hawaii to let people know the alert was a misfire, and that a draft alert was inadvertently sent. The news video clip below about the 2018 event in Hawaii does a good job of walking through how the EAS works.

It Might Be Our Data, But It’s Not Our Breach

By BrianKrebs

Image: Shutterstock.

A cybersecurity firm says it has intercepted a large, unique stolen data set containing the names, addresses, email addresses, phone numbers, Social Security Numbers and dates of birth on nearly 23 million Americans. The firm’s analysis of the data suggests it corresponds to current and former customers of AT&T. The telecommunications giant stopped short of saying the data wasn’t theirs, but it maintains the records do not appear to have come from its systems and may be tied to a previous data incident at another company.

Milwaukee-based cybersecurity consultancy Hold Security said it intercepted a 1.6 gigabyte compressed file on a popular dark web file-sharing site. The largest item in the archive is a 3.6 gigabyte file called “dbfull,” and it contains 28.5 million records, including 22.8 million unique email addresses and 23 million unique SSNs. There are no passwords in the database.

Hold Security founder Alex Holden said a number of patterns in the data suggest it relates to AT&T customers. For starters, email addresses ending in “att.net” accounted for 13.7 percent of all addresses in the database, with addresses from SBCGLobal.net and Bellsouth.net — both AT&T companies — making up another seven percent. In contrast, Gmail users made up more than 30 percent of the data set, with Yahoo addresses accounting for 24 percent. More than 10,000 entries in the database list “none@att.com” in the email field.

Hold Security found these email domains account for 87% of all domains in the data set. Nearly 21% belonged to AT&T customers.

Holden’s team also examined the number of email records that included an alias in the username portion of the email, and found 293 email addresses with plus addressing. Of those, 232 included an alias that indicated the customer had signed up at some AT&T property; 190 of the aliased email addresses were “+att@”; 42 were “+uverse@,” an oddly specific reference to an AT&T entity that included broadband Internet. In September 2016, AT&T rebranded U-verse as AT&T Internet.

According to its website, AT&T Internet is offered in 21 states, including Alabama, Arkansas, California, Florida, Georgia, Indiana, Kansas, Kentucky, Louisiana, Michigan, Missouri, Nevada, North Carolina, Ohio, Oklahoma, Tennessee, Texas and Wisconsin. Nearly all of the records in the database that contain a state designation corresponded to those 21 states; all other states made up just 1.64 percent of the records, Hold Security found.

Image: Hold Security.

The vast majority of records in this database belong to consumers, but almost 13,000 of the entries are for corporate entities. Holden said 387 of those corporate names started with “ATT,” with various entries like “ATT PVT XLOW” appearing 81 times. And most of the addresses for these entities are AT&T corporate offices.

How old is this data? One clue may be in the dates of birth exposed in this database. There are very few records in this file with dates of birth after 2000.

“Based on these statistics, we see that the last significant number of subscribers born in March of 2000,” Holden told KrebsOnSecurity, noting that AT&T requires new account holders to be 18 years of age or older. “Therefore, it makes sense that the dataset was likely created close to March of 2018.”

There was also this anomaly: Holden said one of his analysts is an AT&T customer with a 13-letter last name, and that her AT&T bill has always had the same unique misspelling of her surname (they added yet another letter). He said the analyst’s name is identically misspelled in this database.

KrebsOnSecurity shared the large data set with AT&T, as well as Hold Security’s analysis of it. AT&T ultimately declined to say whether all of the people in the database are or were at some point AT&T customers. The company said the data appears to be several years old, and that “it’s not immediately possible to determine the percentage that may be customers.”

“This information does not appear to have come from our systems,” AT&T said in a written statement. “It may be tied to a previous data incident at another company. It is unfortunate that data can continue to surface over several years on the dark web. However, customers often receive notices after such incidents, and advice for ID theft is consistent and can be found online.”

The company declined to elaborate on what they meant by “a previous data incident at another company.”

But it seems likely that this database is related to one that went up for sale on a hacker forum on August 19, 2021. That auction ran with the title “AT&T Database +70M (SSN/DOB),” and was offered by ShinyHunters, a well-known threat actor with a long history of compromising websites and developer repositories to steal credentials or API keys.

Image: BleepingComputer

ShinyHunters established the starting price for the auction at $200,000, but set the “flash” or “buy it now” price at $1 million. The auction also included a small sampling of the stolen information, but that sample is no longer available. The hacker forum where the ShinyHunters sales thread existed was seized by the FBI in April, and its alleged administrator arrested.

But cached copies of the auction, as recorded by cyber intelligence firm Intel 471, show ShinyHunters received bids of up to $230,000 for the entire database before they suspended the sale.

“This thread has been deleted several times,” ShinyHunters wrote in their auction discussion on Sept. 6, 2021. “Therefore, the auction is suspended. AT&T will be available on WHM as soon as they accept new vendors.”

The WHM initialism was a reference to the White House Market, a dark web marketplace that shut down in October 2021.

“In many cases, when a database is not sold, ShinyHunters will release it for free on hacker forums,” wrote BleepingComputer’s Lawrence Abrams, who broke the news of the auction last year and confronted AT&T about the hackers’ claims.

AT&T gave Abrams a similar statement, saying the data didn’t come from their systems.

“When asked whether the data may have come from a third-party partner, AT&T chose not to speculate,” Abrams wrote. “‘Given this information did not come from us, we can’t speculate on where it came from or whether it is valid,'” AT&T told BleepingComputer.

Asked to respond to AT&T’s denial, ShinyHunters told BleepingComputer at the time, “I don’t care if they don’t admit. I’m just selling.”

On June 1, 2022, a 21-year-old Frenchman was arrested in Morocco for allegedly being a member of ShinyHunters. Databreaches.net reports the defendant was arrested on an Interpol “Red Notice” at the request of a U.S. federal prosecutor from Washington state.

Databreaches.net suggests the warrant could be tied to a ShinyHunters theft in May 2020, when the group announced they had exfiltrated 500 GB of Microsoft’s source code from Microsoft’s private GitHub repositories.

“Researchers assess that Shiny Hunters gained access to roughly 1,200 private repositories around March 28, 2020, which have since been secured,” reads a May 2020 alert posted by the New Jersey Cybersecurity & Communications Integration Cell, a component within the New Jersey Office of Homeland Security and Preparedness.

“Though the breach was largely dismissed as insignificant, some images of the directory listing appear to contain source code for Azure, Office, and some Windows runtimes, and concerns have been raised regarding access to private API keys or passwords that may have been mistakenly included in some private repositories,” the alert continues. “Additionally, Shiny Hunters is flooding dark web marketplaces with breached databases.”

Last month, T-Mobile agreed to pay $350 million to settle a consolidated class action lawsuit over a breach in 2021 that affected 40 million current and former customers. The breach came to light on Aug. 16, 2021, when someone starting selling tens of millions of SSN/DOB records from T-Mobile on the same hacker forum where the ShinyHunters would post their auction for the claimed AT&T database just three days later.

T-Mobile has not disclosed many details about the “how” of last year’s breach, but it said the intruder(s) “leveraged their knowledge of technical systems, along with specialized tools and capabilities, to gain access to our testing environments and then used brute force attacks and other methods to make their way into other IT servers that included customer data.”

A sales thread tied to the stolen T-Mobile customer data.

The Security Pros and Cons of Using Email Aliases

By BrianKrebs

One way to tame your email inbox is to get in the habit of using unique email aliases when signing up for new accounts online. Adding a “+” character after the username portion of your email address — followed by a notation specific to the site you’re signing up at — lets you create an infinite number of unique email addresses tied to the same account. Aliases can help users detect breaches and fight spam. But not all websites allow aliases, and they can complicate account recovery. Here’s a look at the pros and cons of adopting a unique alias for each website.

What is an email alias? When you sign up at a site that requires an email address, think of a word or phrase that represents that site for you, and then add that prefaced by a “+” sign just to the left of the “@” sign in your email address. For instance, if I were signing up at example.com, I might give my email address as krebsonsecurity+example@gmail.com. Then, I simply go back to my inbox and create a corresponding folder called “Example,” along with a new filter that sends any email addressed to that alias to the Example folder.

Importantly, you don’t ever use this alias anywhere else. That way, if anyone other than example.com starts sending email to it, it is reasonable to assume that example.com either shared your address with others or that it got hacked and relieved of that information. Indeed, security-minded readers have often alerted KrebsOnSecurity about spam to specific aliases that suggested a breach at some website, and usually they were right, even if the company that got hacked didn’t realize it at the time.

Alex Holden, founder of the Milwaukee-based cybersecurity consultancy Hold Security, said many threat actors will scrub their distribution lists of any aliases because there is a perception that these users are more security- and privacy-focused than normal users, and are thus more likely to report spam to their aliased addresses.

Holden said freshly-hacked databases also are often scrubbed of aliases before being sold in the underground, meaning the hackers will simply remove the aliased portion of the email address.

“I can tell you that certain threat groups have rules on ‘+*@’ email address deletion,” Holden said. “We just got the largest credentials cache ever — 1 billion new credentials to us — and most of that data is altered, with aliases removed. Modifying credential data for some threat groups is normal. They spend time trying to understand the database structure and removing any red flags.”

According to the breach tracking site HaveIBeenPwned.com, only about .03 percent of the breached records in circulation today include an alias.

Email aliases are rare enough that seeing just a few email addresses with the same alias in a breached database can make it trivial to identify which company likely got hacked and leaked said database. That’s because the most common aliases are simply the name of the website where the signup takes place, or some abbreviation or shorthand for it.

Hence, for a given database, if there are more than a handful of email addresses that have the same alias, the chances are good that whatever company or website corresponds to that alias has been hacked.

That might explain the actions of Allekabels, a large Dutch electronics web shop that suffered a data breach in 2021. Allekabels said a former employee had stolen data on 5,000 customers, and that those customers were then informed about the data breach by Allekabels.

But Dutch publication RTL Nieuws said it obtained a copy of the Allekabels user database from a hacker who was selling information on 3.6 million customers at the time, and found that the 5,000 number cited by the retailer corresponded to the number of customers who’d signed up using an alias. In essence, RTL argued, the company had notified only those most likely to notice and complain that their aliased addresses were suddenly receiving spam.

“RTL Nieuws has called more than thirty people from the database to check the leaked data,” the publication explained. “The customers with such a unique email address have all received a message from Allekabels that their data has been leaked – according to Allekabels they all happened to be among the 5000 data that this ex-employee had stolen.”

HaveIBeenPwned’s Hunt arrived at the conclusion that aliases account for about .03 percent of registered email addresses by studying the data leaked in the 2013 breach at Adobe, which affected at least 38 million users. Allekabels’s ratio of aliased users was considerably higher than Adobe’s — .14 percent — but then again European Internet users tend to be more privacy-conscious.

While overall adoption of email aliases is still quite low, that may be changing. Apple customers who use iCloud to sign up for new accounts online automatically are prompted to use Apple’s Hide My Email feature, which creates the account using a unique email address that automatically forwards to a personal inbox.

What are the downsides to using email aliases, apart from the hassle of setting them up? The biggest downer is that many sites won’t let you use a “+” sign in your email address, even though this functionality is clearly spelled out in the email standard.

Also, if you use aliases, it helps to have a reliable mnemonic to remember the alias used for each account (this is a non-issue if you create a new folder or rule for each alias). That’s because knowing the email address for an account is generally a prerequisite for resetting the account’s password, and if you can’t remember the alias you added way back when you signed up, you may have limited options for recovering access to that account if you at some point forget your password.

What about you, Dear Reader? Do you rely on email aliases? If so, have they been useful? Did I neglect to mention any pros or cons? Feel free to sound off in the comments below.

Class Action Targets Experian Over Account Security

By BrianKrebs

A class action lawsuit has been filed against big-three consumer credit bureau Experian over reports that the company did little to prevent identity thieves from hijacking consumer accounts. The legal filing cites liberally from an investigation KrebsOnSecurity published in July, which found that identity thieves were able to assume control over existing Experian accounts simply by signing up for new accounts using the victim’s personal information and a different email address.

The lawsuit, filed July 28, 2022 in California Central District Court, argues that Experian’s documented practice of allowing the re-registration of accounts without first verifying that the existing account authorized the changes is a violation of the Fair Credit Reporting Act.

In July’s Experian, You Have Some Explaining to Do, we heard from two different readers who had security freezes on their credit files with Experian and who also recently received notifications from Experian that the email address on their account had been changed. So had their passwords and account PIN and secret questions. Both had used password managers to pick and store complex, unique passwords for their accounts.

Both were able to recover access to their Experian account simply by recreating it — sharing their name, address, phone number, social security number, date of birth, and successfully gleaning or guessing the answers to four multiple choice questions that are almost entirely based on public records (or else information that is not terribly difficult to find).

Here’s the bit from that story that got excerpted in the class action lawsuit:

KrebsOnSecurity sought to replicate Turner and Rishi’s experience — to see if Experian would allow me to re-create my account using my personal information but a different email address. The experiment was done from a different computer and Internet address than the one that created the original account years ago.

After providing my Social Security Number (SSN), date of birth, and answering several multiple choice questions whose answers are derived almost entirely from public records, Experian promptly changed the email address associated with my credit file. It did so without first confirming that new email address could respond to messages, or that the previous email address approved the change.

Experian’s system then sent an automated message to the original email address on file, saying the account’s email address had been changed. The only recourse Experian offered in the alert was to sign in, or send an email to an Experian inbox that replies with the message, “this email address is no longer monitored.”

After that, Experian prompted me to select new secret questions and answers, as well as a new account PIN — effectively erasing the account’s previously chosen PIN and recovery questions. Once I’d changed the PIN and security questions, Experian’s site helpfully reminded me that I have a security freeze on file, and would I like to remove or temporarily lift the security freeze?

To be clear, Experian does have a business unit that sells one-time password services to businesses. While Experian’s system did ask for a mobile number when I signed up a second time, at no time did that number receive a notification from Experian. Also, I could see no option in my account to enable multi-factor authentication for all logins.

In response to my story, Experian suggested the reports from readers were isolated incidents, and that the company does all kinds of things it can’t talk about publicly to prevent bad people from abusing its systems.

“We believe these are isolated incidents of fraud using stolen consumer information,” Experian’s statement reads. “Specific to your question, once an Experian account is created, if someone attempts to create a second Experian account, our systems will notify the original email on file.”

“We go beyond reliance on personally identifiable information (PII) or a consumer’s ability to answer knowledge-based authentication questions to access our systems,” the statement continues. “We do not disclose additional processes for obvious security reasons; however, our data and analytical capabilities verify identity elements across multiple data sources and are not visible to the consumer. This is designed to create a more positive experience for our consumers and to provide additional layers of protection. We take consumer privacy and security seriously, and we continually review our security processes to guard against constant and evolving threats posed by fraudsters.”

That sounds great, but since that story ran I’ve heard from several more readers who were doing everything right and still had their Experian accounts hijacked, with little left to show for it except an email alert from Experian saying they had changed the address on file for the account.

I’d like to believe this class action lawsuit will change things, but I do not. Likely, the only thing that will come from this lawsuit — if it is not dismissed outright — is a fat payout for the plaintiffs’ attorneys and “free” credit monitoring for a few years compliments of Experian.

Credit bureaus do not view consumers as customers, who are instead the product that is being sold to third party companies. Often that data is sold based on the interests of the entity purchasing the data, wherein consumer records can be packaged into categories like “dog owner,” “expectant parent,” or “diabetes patient.”

A chat conversation between the plaintiff and Experian’s support staff shows he experienced the same account hijack as described by our readers, despite his use of a computer-generated, unique password for his Experian account.

Most lenders rely on the big-three consumer credit reporting bureaus, including Equifax, Experian and Trans Union — to determine everyone’s credit score, fluctuations in which can make or break one’s application for a loan or job.

On Tuesday, The Wall Street Journal broke a story saying Equifax sent lenders incorrect credit scores for millions of consumers this spring.

Meanwhile, the credit bureaus keep enjoying record earnings. For its part, Equifax reported a record fourth quarter 2021 revenue of 1.3 billion. Much of that revenue came from its Workforce Solutions business, which sells information about consumer salary histories to a variety of customers.

The Biden administration reportedly wants to create a public entity within the Consumer Financial Protection Bureau (CFPB) that would incorporate factors like rent and utility payments into lending decisions. Such a move would require congressional approval but CFPB officials are already discussing how it might be set up, Reuters reported.

“Credit reporting firms oppose the move, saying they are already working to provide fair and affordable credit to all consumers,” Reuters wrote. “A public credit bureau would be bad for consumers because it would expand the government’s power in an inappropriate way and its goals would shift with political winds, the Consumer Data Industry Association (CDIA), which represents private rating firms, said in a statement.”

A public credit bureau is likely to meet fierce resistance from the Congress’s most generous constituents — the banking industry — which detests rapid change and is heavily reliant on the credit bureaus.

And there is a preview of that fight going on right now over the bipartisan American Data Privacy and Protection Act, which The Hill described as one of the most lobbied bills in Congress. The idea behind the bill is that companies can’t collect any more information from you than they need to provide you with the service you’re seeking.

“The bipartisan bill, which represents a breakthrough for lawmakers after years of negotiations, would restrict the kind of data companies can collect from online users and the ways they can use that data,” The Hill reported Aug. 3. “Its provisions would impact companies in every consumer-centric industry — including retailers, e-commerce giants, telecoms, credit card companies and tech firms — that compile massive amounts of user data and rely on targeted ads to attract customers.”

According to the Electronic Frontier Foundation, a nonprofit digital rights group, the bill as drafted falls short in protecting consumers in several areas. For starters, it would override or preempt many kinds of state privacy laws. The EFF argues the bill also would block the Federal Communications Commission (FCC) from enforcing federal privacy laws that now apply to cable and satellite TV, and that consumers should still be allowed to sue companies that violate their privacy.

A copy of the class action complaint against Experian is available here (PDF).

Scammers Sent Uber to Take Elderly Lady to the Bank

By BrianKrebs

Email scammers sent an Uber to the home of an 80-year-old woman who responded to a well-timed email scam, in a bid to make sure she went to the bank and wired money to the fraudsters.  In this case, the woman figured out she was being scammed before embarking for the bank, but her story is a chilling reminder of how far crooks will go these days to rip people off.

Travis Hardaway is a former music teacher turned app developer from Towson, Md. Hardaway said his mother last month replied to an email she received regarding an appliance installation from BestBuy/GeekSquad. Hardaway said the timing of the scam email couldn’t have been worse: His mom’s dishwasher had just died, and she’d paid to have a new one delivered and installed.

“I think that’s where she got confused, because she thought the email was about her dishwasher installation,” Hardaway told KrebsOnSecurity.

Hardaway said his mom initiated a call to the phone number listed in the phony BestBuy email, and that the scammers told her she owed $160 for the installation, which seemed right at the time. Then the scammers asked her to install remote administration software on her computer so that they could control the machine from afar and assist her in making the payment.

After she logged into her bank and savings accounts with scammers watching her screen, the fraudster on the phone claimed that instead of pulling $160 out of her account, they accidentally transferred $160,000 to her account. They said they they needed her help to make sure the money was “returned.”

“They took control of her screen and said they had accidentally transferred $160,000 into her account,” Hardaway said. “The person on the phone told her he was going to lose his job over this transfer error, that he didn’t know what to do. So they sent her some information about where to wire the money, and asked her to go to the bank. But she told them, ‘I don’t drive,’ and they told her, “No problem, we’re sending an Uber to come help you to the bank.'”

Hardaway said he was out of town when all this happened, and that thankfully his mom eventually grew exasperated and gave up trying to help the scammers.

“They told her they were sending an Uber to pick her up and that it was on its way,” Hardaway said. “I don’t know if the Uber ever got there. But my mom went over to the neighbor’s house and they saw it for what it was — a scam.”

Hardaway said he has since wiped her computer, reinstalled the operating system and changed her passwords. But he says the incident has left his mom rattled.

“She’s really second-guessing herself now,” Hardaway said. “She’s not computer-savvy, and just moved down here from Boston during COVID to be near us, but she’s living by herself and feeling isolated and vulnerable, and stuff like this doesn’t help.”

According to the Federal Bureau of Investigation (FBI), seniors are often targeted because they tend to be trusting and polite. More importantly, they also usually have financial savings, own a home, and have good credit—all of which make them attractive to scammers.

“Additionally, seniors may be less inclined to report fraud because they don’t know how, or they may be too ashamed of having been scammed,” the FBI warned in May. “They might also be concerned that their relatives will lose confidence in their abilities to manage their own financial affairs. And when an elderly victim does report a crime, they may be unable to supply detailed information to investigators.”

In 2021, more than 92,000 victims over the age of 60 reported losses of $1.7 billion to the FBI’s Internet Crime Complaint Center (IC3). The FBI says that represents a 74 percent increase in losses over losses reported in 2020.

The abuse of ride-sharing services to scam the elderly is not exactly new. Authorities in Tampa, Fla. say they’re investigating an incident from December 2021 where fraudsters who’d stolen $700,000 from elderly grandparents used Uber rides to pick up bundles of cash from their victims.

No SOCKS, No Shoes, No Malware Proxy Services!

By BrianKrebs

With the recent demise of several popular “proxy” services that let cybercriminals route their malicious traffic through hacked PCs, there is now something of a supply chain crisis gripping the underbelly of the Internet. Compounding the problem, several remaining malware-based proxy services have chosen to block new registrations to avoid swamping their networks with a sudden influx of customers.

Last week, a seven-year-old proxy service called 911[.]re abruptly announced it was permanently closing after a cybersecurity breach allowed unknown intruders to trash its servers and delete customer data and backups. 911 was already akin to critical infrastructure for many in the cybercriminal community after its top two competitors — VIP72 and LuxSocks — closed or were shut down by authorities over the past 10 months.

The underground cybercrime forums are now awash in pleas from people who are desperately seeking a new supplier of abundant, cheap, and reliably clean proxies to restart their businesses. The consensus seems to be that those days are now over, and while there are many smaller proxy services remaining, few of them on their own are capable of absorbing anywhere near the current demand.

“Everybody is looking for an alternative, bro,” wrote a BlackHatForums user on Aug. 1 in response to one of many “911 alternative” discussion threads. “No one knows an equivalent alternative to 911[.]re. Their service in terms of value and accessibility compared to other proxy providers was unmatched. Hopefully someone comes with a great alternative to 911[.]re.”

Among the more frequently recommended alternatives to 911 is SocksEscort[.]com, a malware-based proxy network that has been in existence since at least 2010. Here’s what part of their current homepage looks like:

The SocksEscort home page says its services are perfect for people involved in automated online activity that often results in IP addresses getting blocked or banned, such as Craigslist and dating scams, search engine results manipulation, and online surveys.

But faced with a deluge of new signups in the wake of 911’s implosion, SocksEscort was among the remaining veteran proxy services that opted to close its doors to new registrants, replacing its registration page with the message:

“Due to unusual high demand, and heavy load on our servers, we had to block all new registrations. We won’t be able to support our proxies otherwise, and close SocksEscort as a result. We will resume registrations right after demand drops. Thank you for understanding, and sorry for the inconvenience.”

According to Spur.us, a startup that tracks proxy services, SocksEscort is a malware-based proxy offering, which means the machines doing the proxying of traffic for SocksEscort customers have been infected with malicious software that turns them into a traffic relay.

Spur says SocksEscort’s proxy service relies on software designed to run on Windows computers, and is currently leasing access to more than 14,000 hacked computers worldwide. That is a far cry from the proxy inventory advertised by 911, which stood at more than 200,000 IP addresses for rent just a few days ago.

Image: Spur.us

SocksEscort is what’s known as a “SOCKS Proxy” service. The SOCKS (or SOCKS5) protocol allows Internet users to channel their Web traffic through a proxy server, which then passes the information on to the intended destination. From a website’s perspective, the traffic of the proxy network customer appears to originate from a rented/malware-infected PC tied to a residential ISP customer, not from the proxy service customer.

These services can be used in a legitimate manner for several business purposes — such as price comparisons or sales intelligence — but they are massively abused for hiding cybercrime activity because they make it difficult to trace malicious traffic to its original source.

The disruption at 911[.]re came days after KrebsOnSecurity published an in-depth look at the long-running proxy service, which showed that 911 had a history of incentivizing the installation of its proxy software without user notice or consent, and that it actually ran some of these “pay-per-install” schemes on its own to guarantee a steady supply of freshly-hacked PCs.

More on SocksEscort in an upcoming story.

Further reading:

July 29, 2022: 911 Proxy Service Implodes After Disclosing Breach

July 28, 2022: Breach Exposes Users of Microleaves Proxy Service

July 18, 2022: A Deep Dive Into the Residential Proxy Service ‘911’

June 28, 2022: The Link Between AWM Proxy & the Glupteba Botnet

June 22, 2022: Meet the Administrators of the RSOCKS Proxy Botnet

Sept. 1, 2021: 15-Year-Old Malware Proxy Network VIP72 Goes Dark

A Retrospective on the 2015 Ashley Madison Breach

By BrianKrebs

It’s been seven years since the online cheating site AshleyMadison.com was hacked and highly sensitive data about its users posted online. The leak led to the public shaming and extortion of many Ashley Madison users, and to at least two suicides. To date, little is publicly known about the perpetrators or the true motivation for the attack. But a recent review of Ashley Madison mentions across Russian cybercrime forums and far-right websites in the months leading up to the hack revealed some previously unreported details that may deserve further scrutiny.

As first reported by KrebsOnSecurity on July 19, 2015, a group calling itself the “Impact Team” released data sampled from millions of users, as well as maps of internal company servers, employee network account information, company bank details and salary information.

The Impact Team said it decided to publish the information because ALM “profits on the pain of others,” and in response to a paid “full delete” service Ashley Madison parent firm Avid Life Media offered that allowed members to completely erase their profile information for a $19 fee.

According to the hackers, although the delete feature promised “removal of site usage history and personally identifiable information from the site,” users’ purchase details — including real name and address — weren’t actually scrubbed.

“Full Delete netted ALM $1.7mm in revenue in 2014. It’s also a complete lie,” the hacking group wrote. “Users almost always pay with credit card; their purchase details are not removed as promised, and include real name and address, which is of course the most important information the users want removed.”

A snippet of the message left behind by the Impact Team.

The Impact Team said ALM had one month to take Ashley Madison offline, along with a sister property called Established Men. The hackers promised that if a month passed and the company did not capitulate, it would release “all customer records, including profiles with all the customers’ secret sexual fantasies and matching credit card transactions, real names and addresses, and employee documents and emails.”

Exactly 30 days later, on Aug. 18, 2015, the Impact Team posted a “Time’s up!” message online, along with links to 60 gigabytes of Ashley Madison user data.

AN URGE TO DESTROY ALM

One aspect of the Ashley Madison breach that’s always bothered me is how the perpetrators largely cast themselves as fighting a crooked company that broke their privacy promises, and how this narrative was sustained at least until the Impact Team decided to leak all of the stolen user account data in August 2015.

Granted, ALM had a lot to answer for. For starters, after the breach it became clear that a great many of the female Ashley Madison profiles were either bots or created once and never used again. Experts combing through the leaked user data determined that fewer than one percent of the female profiles on Ashley Madison had been used on a regular basis, and the rest were used just once — on the day they were created. On top of that, researchers found 84 percent of the profiles were male.

But the Impact Team had to know that ALM would never comply with their demands to dismantle Ashley Madison and Established Men. In 2014, ALM reported revenues of $115 million. There was little chance the company was going to shut down some of its biggest money machines.

Hence, it appears the Impact Team’s goal all along was to create prodigious amounts of drama and tension by announcing the hack of a major cheating website, and then letting that drama play out over the next few months as millions of exposed Ashley Madison users freaked out and became the targets of extortion attacks and public shaming.

Robert Graham, CEO of Errata Security, penned a blog post in 2015 concluding that the moral outrage professed by the Impact Team was pure posturing.

“They appear to be motivated by the immorality of adultery, but in all probability, their motivation is that #1 it’s fun and #2 because they can,” Graham wrote.

Per Thorsheim, a security researcher in Norway, told Wired at the time that he believed the Impact Team was motivated by an urge to destroy ALM with as much aggression as they could muster.

“It’s not just for the fun and ‘because we can,’ nor is it just what I would call ‘moralistic fundamentalism,'” Thorsheim told Wired. “Given that the company had been moving toward an IPO right before the hack went public, the timing of the data leaks was likely no coincidence.”

NEO-NAZIS TARGET ASHLEY MADISON CEO

As the seventh anniversary of the Ashley Madison hack rolled around, KrebsOnSecurity went back and looked for any mentions of Ashley Madison or ALM on cybercrime forums in the months leading up to the Impact Team’s initial announcement of the breach on July 19, 2015. There wasn’t much, except a Russian guy offering to sell payment and contact information on 32 million AshleyMadison users, and a bunch of Nazis upset about a successful Jewish CEO promoting adultery.

Cyber intelligence firm Intel 471 recorded a series of posts by a user with the handle “Brutium” on the Russian-language cybercrime forum Antichat between 2014 and 2016. Brutium routinely advertised the sale of large, hacked databases, and on Jan. 24, 2015, this user posted a thread offering to sell data on 32 million Ashley Madison users:

“Data from July 2015
Total ~32 Million contacts:
full name; email; phone numbers; payment, etc.”

It’s unclear whether the postdated “July 2015” statement was a typo, or if Brutium updated that sales thread at some point. There is also no indication whether anyone purchased the information. Brutium’s profile has since been removed from the Antichat forum.

Flashpoint is a threat intelligence company in New York City that keeps tabs on hundreds of cybercrime forums, as well as extremist and hate websites. A search in Flashpoint for mentions of Ashley Madison or ALM prior to July 19, 2015 shows that in the six months leading up to the hack, Ashley Madison and its then-CEO Noel Biderman became a frequent subject of derision across multiple neo-Nazi websites.

On Jan. 14, 2015, a member of the neo-Nazi forum Stormfront posted a lively thread about Ashley Madison in the general discussion area titled, “Jewish owned dating website promoting adultery.”

On July 3, 2015, Andrew Anglin, the editor of the alt-right publication Daily Stormer, posted excerpts about Biderman from a story titled, “Jewish Hyper-Sexualization of Western Culture,” which referred to Biderman as the “Jewish King of Infidelity.”

On July 10, a mocking montage of Biderman photos with racist captions was posted to the extremist website Vanguard News Network, as part of a thread called “Jews normalize sexual perversion.”

“Biderman himself says he’s a happily married father of two and does not cheat,” reads the story posted by Anglin on the Daily Stormer. “In an interview with the ‘Current Affair’ program in Australia, he admitted that if he found out his own wife was accessing his cheater’s site, ‘I would be devastated.'”

The leaked AshleyMadison data included more than three years’ worth of emails stolen from Biderman. The hackers told Motherboard in 2015 they had 300 GB worth of employee emails, but that they saw no need to dump the inboxes of other company employees.

Several media outlets pounced on salacious exchanges in Biderman’s emails as proof he had carried on multiple affairs. Biderman resigned as CEO on Aug. 28, 2015. The last message in the archive of Biderman’s stolen emails was dated July 7, 2015 — almost two weeks before the Impact Team would announce their hack.

Biderman told KrebsOnSecurity on July 19, 2015 that the company believed the hacker was some type of insider.

“We’re on the doorstep of [confirming] who we believe is the culprit, and unfortunately that may have triggered this mass publication,” Biderman said. “I’ve got their profile right in front of me, all their work credentials. It was definitely a person here that was not an employee but certainly had touched our technical services.”

Certain language in the Impact Team’s manifesto seemed to support this theory, such as the line: “For a company whose main promise is secrecy, it’s like you didn’t even try, like you thought you had never pissed anyone off.”

But despite ALM offering a belated $500,000 reward for information leading to the arrest and conviction of those responsible, to this day no one has been charged in connection with the hack.

Massive Losses Define Epidemic of ‘Pig Butchering’

By BrianKrebs

U.S. state and federal investigators are being inundated with reports from people who’ve lost hundreds of thousands or millions of dollars in connection with a complex investment scam known as “pig butchering,” wherein people are lured by flirtatious strangers online into investing in cryptocurrency trading platforms that eventually seize any funds when victims try to cash out.

The term “pig butchering” refers to a time-tested, heavily scripted, and human-intensive process of using fake profiles on dating apps and social media to lure people into investing in elaborate scams. In a more visceral sense, pig butchering means fattening up a prey before the slaughter.

“The fraud is named for the way scammers feed their victims with promises of romance and riches before cutting them off and taking all their money,” the Federal Bureau of Investigation (FBI) warned in April 2022. “It’s run by a fraud ring of cryptocurrency scammers who mine dating apps and other social media for victims and the scam is becoming alarmingly popular.”

As documented in a series of investigative reports published over the past year across Asia, the people creating these phony profiles are largely men and women from China and neighboring countries who have been kidnapped and trafficked to places like Cambodia, where they are forced to scam complete strangers over the Internet — day after day.

The most prevalent pig butchering scam today involves sophisticated cryptocurrency investment platforms, where investors invariably see fantastic returns on their deposits — until they try to withdraw the funds. At that point, investors are told they owe huge tax bills. But even those who pay the phony levies never see their money again.

The come-ons for these scams are prevalent on dating sites and apps, but they also frequently start with what appears to be a wayward SMS — such as an instant message about an Uber ride that never showed. Or a reminder from a complete stranger about a planned meetup for coffee. In many ways, the content of the message is irrelevant; the initial goal to simply to get the recipient curious enough to respond in some way.

Those who respond are asked to continue the conversation via WhatsApp, where an attractive, friendly profile of the opposite gender will work through a pre-set script that is tailored to their prey’s apparent socioeconomic situation. For example, a divorced, professional female who responds to these scams will be handled with one profile type and script, while other scripts are available to groom a widower, a young professional, or a single mom.

‘LIKE NOTHING I’VE SEEN BEFORE’

That’s according to Erin West, deputy district attorney for Santa Clara County in Northern California. West said her office has been fielding a large number of pig butchering inquiries from her state, but also from law enforcement entities around the country that are ill-equipped to investigate such fraud.

“The people forced to perpetrate these scams have a guide and a script, where if your victim is divorced say this, or a single mom say this,” West said. “The scale of this is so massive. It’s a major problem with no easy answers, but also with victim volumes I’ve never seen before. With victims who are really losing their minds and in some cases are suicidal.”

West is a key member of REACT, a task force set up to tackle especially complex forms of cyber theft involving virtual currencies. West said the initial complaints from pig butchering victims came early this year.

“I first thought they were one-off cases, and then I realized we were getting these daily,” West said. “A lot of them are being reported to local agencies that don’t know what to do with them, so the cases languish.”

West said pig butchering victims are often quite sophisticated and educated people.

“One woman was a university professor who lost her husband to COVID, got lonely and was chatting online, and eventually ended up giving away her retirement,” West recalled of a recent case. “There are just horrifying stories that run the gamut in terms of victims, from young women early in their careers, to senior citizens and even to people working in the financial services industry.”

In some cases reported to REACT, the victims said they spent days or weeks corresponding with the phony WhatsApp persona before the conversation shifted to investing.

“They’ll say ‘Hey, this is the food I’m eating tonight’ and the picture they share will show a pretty setting with a glass of wine, where they’re showcasing an enviable lifestyle but not really mentioning anything about how they achieved that,” West said. “And then later, maybe a few hours or days into the conversation, they’ll say, ‘You know I made some money recently investing in crypto,’ kind of sliding into the topic as if this wasn’t what they were doing the whole time.”

Curious investors are directed toward elaborate and official-looking online crypto platforms that appear to have thousands of active investors. Many of these platforms include extensive study materials and tutorials on cryptocurrency investing. New users are strongly encouraged to team up with more seasoned investors on the platform, and to make only small investments that they can afford to lose.

The now-defunct homepage of xtb-market[.]com, a scam cryptocurrency platform tied to a pig butchering scheme.

“They’re able to see some value increase, and maybe even be allowed to take out that value increase so that they feel comfortable about the situation,” West said. Some investors then need little encouragement to deposit additional funds, which usually generate increasingly higher “returns.”

West said many crypto trading platforms associated with pig butchering scams appear to have been designed much like a video game, where investor hype is built around upcoming “trading opportunities” that hint at even more fantastic earnings.

“There are bonus levels and VIP levels, and they’ll build hype and a sense of frenzy into the trading,” West said. “There are definitely some psychological mechanisms at work to encourage people to invest more.”

“What’s so devastating about many of the victims is they lose that sense of who they are,” she continued. “They thought they were a savvy, sophisticated person, someone who’s sort of immune to scams. I think the large scale of the trickery and psychological manipulation being used here can’t be understated. It’s like nothing I’ve seen before.”

A $5,000,000 LOSS

Courtney Nolan, a divorced mother of three daughters, says she lost more than $5 million to a pig butchering scam. Nolan lives in St. Louis and has a background in investment finance, but only started investing in cryptocurrencies in the past year.

Nolan’s case may be especially bad because she was already interested in crypto investing when the scammer reached out. At the time, Bitcoin was trading at or near all-time highs of nearly $68,000 per coin.

Nolan said her nightmare began in late 2021 with a Twitter direct message from someone who was following many of the same cryptocurrency influencers she followed. Her fellow crypto enthusiast then suggested they continue their discussion on WhatsApp. After much back and forth about his trading strategies, her new friend agreed to mentor her on how to make reliable profits using the crypto trading platform xtb.com.

“I had dabbled in leveraged trading before, but his mentor program gave me over 100 pages of study materials and agreed to walk me through their investment strategies over the course of a year,” Nolan told KrebsOnSecurity.

Nolan’s mentor had her create an account website xtb-market[.]com, which was made to be confusingly similar to XTB’s official platform. The site promoted several different investment packages, including a “starter plan” that involves a $5,250 up-front investment and promises more than 15 percent return across four separate trading bursts.

Platinum plans on xtb-market promised a whopping 45 percent ROI, with a minimum investment of $265,000. The site also offered a generous seven percent commission for referrals, which encouraged new investors to recruit others.

The now-defunct xtb-market[.]com.

While chatting via WhatsApp, Nolan and her mentor would trade side by side in xtb-market, initially with small investments ranging from $500 to $5,000. When those generated hefty returns, Nolan made bigger deposits. On several occasions she was able to withdraw amounts ranging from $10,000 to $30,000.

But after investing more than $4.5 million of her own money over nearly four months, Nolan found her account was suddenly frozen. She was then issued a tax statement saying she owed nearly $500,000 in taxes before she could reactivate her account or access her funds.

Nolan said it seems obvious in hindsight that she should never have paid the tax bill. Because xtb-market and her mentor cut all communications with her after that, and the entire website disappeared just a few weeks later.

Justin Maile, an investigation partner manager at Chainalysis, told Vice News that the tax portion of the pig butchering scam relies on the “sunk costs fallacy,” when people are reluctant to abandon a failing strategy or course of action because they have already invested heavily in it.

“Once the victim starts getting skeptical or tries to withdraw their funds, they are often told that they have to pay tax on the gains before funds can be unlocked,” Maile told Vice News. “The scammers will try to get any last payments out of the victims by exploiting the sunk cost fallacy and dangling huge profits in front of them.”

Vice recently published an in-depth report on pig butchering’s link to organized crime gangs in Asia that lure young job seekers with the promise of customer service jobs in call centers. Instead, those who show up at the appointed place and time are taken on long car rides and/or forced hikes across the borders into Cambodia, where they are pressed into indentured servitude.

Vice found many of the people forced to work in pig-butchering scams are being held in Chinese-owned casinos operating in Cambodia. Many of those casinos were newly built when the Covid pandemic hit. As the new casinos and hotels sat empty, organized crime groups saw an opportunity to use these facilities to generate huge income streams, and many foreign travelers stranded in neighboring countries were eventually trafficked to these scam centers.

Vice reports:

“While figures on the number of people in scam centers in Cambodia is unknown, best estimates pieced together from various sources point to the tens of thousands across scam centers in Sihanoukville, Phnom Penh, and sites in border regions Poipet and Bavet. In April, Thailand’s assistant national police commissioner said 800 Thai citizens had been rescued from scam centers in Cambodia in recent months, with a further 1,000 citizens still trapped across the country. One Vietnamese worker estimated 300 of his compatriots were held on just one floor in a tall office block hosting scam operations.”

“…within Victory Paradise Resort alone there were 7,000 people, the majority from mainland China, but also Indonesians, Singaporeans and Filipinos. According to the Khmer Times, one 10-building complex of high-rises in Sihanoukville, known as The China Project, holds between 8,000 to 10,000 people participating in various scams—a workforce that would generate profits around the $1 billion mark each year at $300 per worker per day.”

THE KILLING FLOOR

REACTs’ West said while there are a large number of pig butchering victims reporting their victimization to the FBI, very few are receiving anything more than instructions about filing a complaint with the FBI’s Internet Crime Complaint Center (IC3), which keeps track of cybercrime losses and victims.

“There’s a huge gap in victims that are seeing any kind of service at all, where they’re reporting to the FBI but not being able to talk to anyone,” she said. “They’re filling out the IC3 form and never hearing back. It sort of feels like the federal government is ignoring this, so people are going to local agencies, which are sending these victims our way.”

For many younger victims of pig butchering, even losses of a few thousand dollars can be financially devastating. KrebsOnSecurity recently heard from two different readers who said they were in their 20s and lost more than $40,000 each when the investment platforms they were trading on vanished with their money.

The FBI can often bundle numerous IC3 complaints involving the same assailants and victims into a single case for federal prosecutors to pursue the guilty, and/or try to recapture what was stolen. In general, however, victims of crypto crimes rarely see that money again, or if they do it can take many years.

“The next piece is what can we actually do with these cases,” West said. “We used to frame success as getting bad people behind bars, but these cases leave us as law enforcement with not a lot of opportunity there.”

West said the good news is U.S. authorities are seeing some success in freezing cryptocurrency wallets suspected of being tied to large-scale cybercriminal operations. Indeed, Nolan told KrebsOnSecurity that her losses were substantial enough to warrant an official investigation by the FBI, which she says has since taken steps to freeze at least some of the assets tied to xtb-market[.]com.

Likewise, West said she was recently able to freeze cryptocurrency funds stolen from some pig butchering victims, and now REACT is focusing on helping state and local authorities learn how to do the same.

“It’s important to be able to mobilize quickly and know how to freeze and seize crypto and get it back to its rightful owner,” West said. “We definitely have made seizures in cases involving pig butchering, but we haven’t gotten that back to the rightful owners yet.”

In April, the FBI warned Internet users to be on guard against pig butchering scams, which it said attracts victims with “promises of romance and riches” before duping them out of their money. The IC3 said it received more than 4,300 complaints related to crypto-romance scams, resulting in losses of more than $429 million.

Here are some common elements of a pig butchering scam:

Dating apps: Pig-butchering attempts are common on dating apps, but they can begin with almost any type of communication, including SMS text messages.
WhatsApp: In virtually all documented cases of pig butchering, the target is moved fairly quickly into chatting with the scammer via WhatsApp.
No video: The scammers will come up with all kinds of excuses not to do a video call. But they will always refuse.
Investment chit-chat: Your contact (eventually) claims to have inside knowledge about the cryptocurrency market and can help you make money.

The FBI’s tips on avoiding crypto scams:

-Never send money, trade, or invest based on the advice of someone you have only met online.
-Don’t talk about your current financial status to unknown and untrusted people.
-Don’t provide your banking information, Social Security Number, copies of your identification or passport, or any other sensitive information to anyone online or to a site you do not know is legitimate.
-If an online investment or trading site is promoting unbelievable profits, it is most likely that—unbelievable.
-Be cautious of individuals who claim to have exclusive investment opportunities and urge you to act fast.

A Deep Dive Into the Residential Proxy Service ‘911’

By BrianKrebs

The 911 service as it exists today.

For the past seven years, an online service known as 911 has sold access to hundreds of thousands of Microsoft Windows computers daily, allowing customers to route their Internet traffic through PCs in virtually any country or city around the globe — but predominantly in the United States. 911 says its network is made up entirely of users who voluntarily install its “free VPN” software. But new research shows the proxy service has a long history of purchasing installations via shady “pay-per-install” affiliate marketing schemes, some of which 911 operated on its own.

911[.]re is one of the original “residential proxy” networks, which allow someone to rent a residential IP address to use as a relay for his/her Internet communications, providing anonymity and the advantage of being perceived as a residential user surfing the web.

From a website’s perspective, the IP traffic of a residential proxy network user appears to originate from the rented residential IP address, not from the proxy service customer. These services can be used in a legitimate manner for several business purposes — such as price comparisons or sales intelligence — but they are massively abused for hiding cybercrime activity because they can make it difficult to trace malicious traffic to its original source.

Residential proxy services are often marketed to people seeking the ability to evade country-specific blocking by the major movie and media streaming providers. But some of them — like 911 — build their networks in part by offering “free VPN” or “free proxy” services that are powered by software which turns the user’s PC into a traffic relay for other users. In this scenario, users indeed get to use a free VPN service, but they are often unaware that doing so will turn their computer into a proxy that lets others use their Internet address to transact online.

The current prices for 911’s proxies.

Researchers at the University of Sherbrooke in Canada recently published an analysis of 911, and found there were roughly 120,000 PCs for rent via the service, with the largest number of them located in the United States.

“The 911[.]re network uses at least two free VPN services to lure its users to install a malware-like software that achieves persistence on the user’s computer,” the researchers wrote. “During the research we identified two free VPN services that [use] a subterfuge to lure users to install software that looks legitimate but makes them part of the network. These two software are currently unknown to most if not all antivirus companies.”

A depiction of the Proxygate service. Image: University of Sherbrooke.

The researchers concluded that 911 is supported by a “mid scale botnet-like infrastructure that operates in several networks, such as corporate, government and critical infrastructure.” The Canadian team said they found many of the 911 nodes available for rent were situated within several major US-based universities and colleges, critical infrastructures such as clean water, defense contractors, law enforcement and government networks.

Highlighting the risk that 911 nodes could pose to internal corporate networks, they observed that “the infection of a node enables the 911.re user to access shared resources on the network such as local intranet portals or other services.”

“It also enables the end user to probe the LAN network of the infected node,” the paper continues. “Using the internal router, it would be possible to poison the DNS cache of the LAN router of the infected node, enabling further attacks.”

The 911 user interface, as it existed when the service first launched in 2016.

THE INTERNET NEVER FORGETS

A review of the clues left behind by 911’s early days on the Internet paint a more complete picture of this long-running proxy network. The domain names used by 911 over the years have a few common elements in their original WHOIS registration records, including the address ustraffic@qq.com and a Yunhe Wang from Beijing.

That ustraffic email is tied to a small number of interesting domains, including browsingguard[.]com, cleantraffic[.]net, execlean[.]net, proxygate[.]net, and flashupdate[.]net.

A cached copy of flashupdate[.]net available at the Wayback Machine shows that in 2016 this domain was used for the “ExE Bucks” affiliate program, a pay-per-install business which catered to people already running large collections of hacked computers or compromised websites. Affiliates were paid a set amount for each installation of the software, with higher commissions for installs in more desirable nations, particularly Europe, Canada and the United States.

“We load only one software — it’s a Socks5 proxy program,” read the message to ExE Bucks affiliates. The website said affiliates were free to spread the proxy software by any means available (i.e. “all promotion methods allowed”). The website’s copyright suggests the ExE Bucks affiliate program dates back to 2012.

A cached copy of flashupdate[.]net circa 2016, which shows it was the home of a pay-per-install affiliate program that incentivized the silent installation of its software. “FUD” in the ad above refers to software and download links that are “Fully UnDetectable” as suspicious or malicious by all antivirus software.

Another domain tied to the ustraffic@qq.com email in 2016 was ExeClean[.]net, a service that advertised to cybercriminals seeking to obfuscate their malicious software so that it goes undetected by all or at least most of the major antivirus products on the market.

“Our technology ensures the maximum security from reverse engineering and antivirus detections,” ExEClean promised.

The Exe Clean service made malware look like goodware to antivirus products.

Yet another domain connected to the ustraffic email is p2pshare[.]net, which advertised “free unlimited internet file-sharing platform” for those who agreed to install their software.

p2pshare.net, which bundled 911 proxy with an application that promised access to free unlimited internet file-sharing.

Still more domains associated with ustraffic@qq.com suggest 911’s proxy has been disguised as security updates for video player plugins, including flashplayerupdate[.]xyz, mediaplayerupdate[.]xyz, and videoplayerupdate[.]xyz.

The earliest version of the 911 website available from the Wayback Machine is from 2016. A sister service called proxygate[.]net launched roughly a year prior to 911 as a “free” public test of the budding new residential proxy service. “Basically using clients to route for everyone,” was how Proxygate described itself in 2016.

For more than a year after its founding, the 911 website was written entirely in Simplified Chinese. The service has only ever accepted payment via virtual currencies such as Bitcoin and Monero, as well as Alipay and China UnionPay, both payment platforms based in China.

Initially, the terms and conditions of 911’s “End User License Agreement (EULA) named a company called Wugaa Enterprises LLC, which was registered in California in 2016. Records from the California Secretary of State office show that in November 2016, Wugaa Enterprises said it was in the Internet advertising business, and had named as its CEO as one Nicolae Aurelian Mazgarean of Brasov, Romania.

A search of European VAT numbers shows the same Brasov, RO address tied to an enterprise called PPC Leads SRL (in the context of affiliate-based marketing, “PPC” generally refers to the term “pay-per-click”).

911’s EULA would later change its company name and address in 2017, to International Media Ltd. in the British Virgin Islands. That is the same information currently displayed on the 911 website.

The EULA attached to 911 software downloaded from browsingguard[.]com (tied to the same ustraffic@qq email that registered 911) references a company called Gold Click Limited. According to the UK Companies House, Gold Click Limited was registered in 2016 to a 34-year-old Yunhe Wang from Beijing City. Many of the WHOIS records for the above mentioned domains also include the name Yunhe Wang, or some variation thereof.

In a response to questions from KrebsOnSecurity, 911 said the researchers were wrong, and that 911 has nothing to do with any of the other domains mentioned above.

“We have 911 SDK link and how it works described clearly in the “Terms of use” of affiliated partners products, and we have details of how the community powered network works on our webpages,” read an email response.

“Besides that, for protecting the end users, we banned many domains’ access and blocked the vulnerable ports, e.g. spamming emails, and torrent is not possible from the 911 network,” the reply continued. “Same as scanning and many others…Accessing to the Lan network and router is also blocked. We are monitoring 911 user’s account closely, once any abnormal behavior detected, we suspend the user’s account right away.”

FORUM ACTIVITY?

911 has remained one of the most popular services among denizens of the cybercrime underground for years, becoming almost shorthand for connecting to that “last mile” of cybercrime. Namely, the ability to route one’s malicious traffic through a computer that is geographically close to the consumer whose credit card they’re about to charge at some website, or whose bank account they’re about to empty.

Given the frequency with which 911 has been praised by cybercrooks on the top forums, it was odd to find the proprietors of 911 do not appear to have created any official support account for the service on any of several dozen forums reviewed by this author going back a decade. However there are two cybercriminal identities on the forums that have responded to individual 911 help requests, and who promoted the sale of 911 accounts via their handles.

Both of these identities were active on the crime forum fl.l33t[.]su between 2016 and 2019. The user “Transfer” advertised and sold access to 911 from 2016 to 2018, amid many sales threads where they advertised expensive electronics and other consumer goods that were bought online with stolen credit cards.

In a 2017 discussion on fl.l33t[.]su, the user who picked the handle “527865713” could be seen answering private messages in response to help inquiries seeking someone at 911. That identity is tied to an individual who for years advertised the ability to receive and relay large wire transfers from China.

One ad from this user in 2016 offered a “China wire service” focusing on Western Union payments, where “all transfers are accepted in China.” The service charged 20 percent of all “scam wires,” unauthorized wire transfers resulting from bank account takeovers or scams like CEO impersonation schemes.

911 TODAY

In August 2021, 911’s biggest competitor — a 15-year-old proxy network built on malware-compromised PCs called VIP72abruptly closed up shop. Almost overnight, an overwhelming number of former VIP72 customers began shifting their proxy activities to 911.

The login page for VIP72, until recently 911’s largest competitor.

That’s according to Riley Kilmer, co-founder of Spur.us — a security company that monitors anonymity services. Kilmer said 911 also gained an influx of new customers after the Jan. 2022 closure of LuxSocks, another malware-based proxy network.

“911’s user base skyrocketed after VIP72 and then LuxSocks went away,” Kilmer said. “And it’s not hard to see why. 911 and VIP72 are both Windows-based apps that operate in a similar way, where you buy private access to IPs.”

Kilmer said 911 is interesting because it appears to be based in China, while nearly all of the other major proxy networks are Russian-backed or Russian-based.

“They have two basic methods to get new IPs,” Kilmer said. “The free VPN apps, and the other is trojanized torrents. They’ll re-upload Photoshop and stuff like that so that it’s backdoored with the 911 proxy. They claim the proxy is bundled with legitimate software and that users all agree to their Terms of Service, meanwhile they can hide behind the claim that it was some affiliate who installed the software, not them.”

Kilmer said at last count, 911 had nearly 200,000 proxy nodes for sale, spanning more than 200 countries: The largest geographic concentration is the United States, where more than 42,000 proxies are currently for rent by the service.

PARTING THOUGHTS

Beware of “free” or super low-cost VPN services. Proper VPN services are not cheap to operate, so the revenue for the service has to come from somewhere. And there are countless “free” VPN services that are anything but, as we’ve seen with 911.

In general, the rule of thumb for transacting online is that if you’re not the paying customer, then you and/or your devices are probably the product that’s being sold to others. Many free VPN services will enlist users as VPN nodes for others to use, and some even offset costs by collecting and reselling data from their users.

All VPN providers claim to prioritize the privacy of their users, but many then go on to collect and store all manner of personal and financial data from those customers. Others are fairly opaque about their data collection and retention policies.

I’ve largely avoided wading into the fray about which VPN services are best, but there are so many shady and just plain bad ones out there that I’d be remiss if I didn’t mention one VPN provider whose business practices and transparency of operation consistently distinguish them from the rest. If maintaining your privacy and anonymity are primary concerns for you as a VPN user, check out Mullvad.net.

Let me make clear that KrebsOnSecurity does not have any financial or business ties to this company (for the avoidance of doubt, this post doesn’t even link to them). I mention it only because I’ve long been impressed with their candor and openness, and because Mullvad goes out of its way to discourage customers from sharing personal or financial data.

To that end, Mullvad will even accept mailed payments of cash to fund accounts, quite a rarity these days. More importantly, the service doesn’t ask users to share phone numbers, email addresses or any other personal information. Nor does it require customers to create passwords: Each subscription can be activated just by entering a Mullvad account number (woe to those who lose their account number).

I wish more companies would observe this remarkably economical security practice, which boils down to the mantra, “You don’t have to protect what you don’t collect.”

Update, July 24, 11:15 a.m. ET: 911’s homepage now includes a banner saying the service has halted new registrations and payments. “We are reviewing our network and adding a series of security measures to prevent misuse of our services,” the message reads. “Proxy balance top-up and new user registration are closed. We are reviewing every existing user, to ensure their usage is legit and [in] compliance with our Terms of Service.”

Update, July 30, 10:07 a.m. ET: 911 announced on July 28 that it is permanently closing down, following a series of data breaches this month that 911 says resulted in the deletion of customer data.

Why 8kun Went Offline During the January 6 Hearings

By BrianKrebs

The latest Jan. 6 committee hearing on Tuesday examined the role of conspiracy theory communities like 8kun[.]top and TheDonald[.]win in helping to organize and galvanize supporters who responded to former President Trump’s invitation to “be wild” in Washington, D.C. on that chaotic day. At the same time the committee was hearing video testimony from 8kun founder Jim Watkins, 8kun and a slew of similar websites were suddenly yanked offline. Watkins suggested the outage was somehow related to the work of the committee, but the truth is KrebsOnSecurity was responsible and the timing was pure coincidence.

In a follow-up video address to his followers, Watkins said the outage happened shortly after the Jan. 6 committee aired his brief video testimony.

“Then everything that I have anything to do with seemed to crash, so that there was no way for me to go out and talk to anybody,” Watkins said. “The whole network seemed to go offline at the same time, and that affected a lot of people.”

8kun and many other sites that continue to push the false narrative that the 2020 election was stolen from the 45th president have long been connected to the Internet via VanwaTech, a hosting firm based in Vancouver, Wash. In late October 2020, a phone call to VanwaTech’s sole provider of connectivity to the Internet resulted in a similar outage for 8kun.

Jim Waktins (top right), in a video address to his followers on Tuesday after 8kun was taken offline.

Following that 2020 outage, 8kun and a large number of QAnon conspiracy sites found refuge in a Russian hosting provider. But when the anonymous “Q” leader of QAnon suddenly began posting on 8kun again earlier this month, KrebsOnSecurity received a tip that 8kun was once again connected to the larger Internet via a single upstream provider based in the United States.

On Sunday, July 10, KrebsOnSecurity contacted Psychz Networks, a hosting provider in Los Angeles, to see if they were aware that they were the sole Internet lifeline for 8kun et. al.  Psychz confirmed that in response to a report from KrebsOnSecurity, VanwaTech was removed from its network around the time of the Jan. 6 hearing on Tuesday.

8kun and its archipelago of conspiracy theory communities have once again drifted back into the arms of a Russian hosting provider (AS207651), which is connected to the larger Internet via two providers. Those include AS31500 — which appears to be owned by Russians but is making a fair pretense at being located in the Caribbean; and AS28917, in Vilnius, Lithuania.

8kun’s newfound Russian connections will likely hold, but Lithuania may be a different story. Late last month, pro-Russian hackers claimed responsibility for an extensive distributed denial-of-service (DDoS) attack against Lithuanian state and private websites, which reportedly was in response to Vilnius’s decision to cease the transit of some goods under European Union sanctions to Russia’s Kaliningrad exclave.

Many have speculated that Jim Watkins and/or his son Ron are in fact “Q,” the anonymous persona behind the QAnon conspiracy theory, which held that Former President Trump was secretly working to save the world from a satanic cult of pedophiles and cannibals.

8chan/8kun has been linked to white supremacism, neo-Nazism, antisemitism, multiple mass shootings, and is known for hosting child pornography. After three mass shootings in 2019 revealed the perpetrators had spread their manifestos on 8chan and even streamed their killings live there, 8chan was ostracized by one Internet provider after another.

In 2019, the FBI identified QAnon as a potential domestic terror threat, noting that some of its followers have been linked to violent incidents motivated by fringe beliefs.

The Jan. 6 hearing referenced in this story is available via CSPAN.

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