FreshRSS

🔒
❌ About FreshRSS
There are new available articles, click to refresh the page.
Before yesterdaySecurity

Predator Android Spyware: Researchers Uncover New Data Theft Capabilities

By Ravie Lakshmanan
Security researchers have detailed the inner workings of the commercial Android spyware called Predator, which is marketed by the Israeli company Intellexa (previously Cytrox). Predator was first documented by Google's Threat Analysis Group (TAG) in May 2022 as part of attacks leveraging five different zero-day flaws in the Chrome web browser and Android. The spyware, which is delivered by means

5 Must-Know Facts about 5G Network Security and Its Cloud Benefits

By The Hacker News
5G is a game changer for mobile connectivity, including mobile connectivity to the cloud. The technology provides high speed and low latency when connecting smartphones and IoT devices to cloud infrastructure. 5G networks are a critical part of all infrastructure layers between the end user and the end service; these networks transmit sensitive data that can be vital for governments and

What to Look for When Selecting a Static Application Security Testing (SAST) Solution

By The Hacker News
If you're involved in securing the applications your organization develops, there is no question that Static Application Security Testing (SAST) solutions are an important part of a comprehensive application security strategy. SAST secures software, supports business more securely, cuts down on costs, reduces risk, and speeds time to development, delivery, and deployment of mission-critical

Interview With a Crypto Scam Investment Spammer

By BrianKrebs

Social networks are constantly battling inauthentic bot accounts that send direct messages to users promoting scam cryptocurrency investment platforms. What follows is an interview with a Russian hacker responsible for a series of aggressive crypto spam campaigns that recently prompted several large Mastodon communities to temporarily halt new registrations. According to the hacker, their spam software has been in private use until the last few weeks, when it was released as open source code.

Renaud Chaput is a freelance programmer working on modernizing and scaling the Mastodon project infrastructure — including joinmastodon.org, mastodon.online, and mastodon.social. Chaput said that on May 4, 2023, someone unleashed a spam torrent targeting users on these Mastodon communities via “private mentions,” a kind of direct messaging on the platform.

The messages said recipients had earned an investment credit at a cryptocurrency trading platform called moonxtrade[.]com. Chaput said the spammers used more than 1,500 Internet addresses across 400 providers to register new accounts, which then followed popular accounts on Mastodon and sent private mentions to the followers of those accounts.

Since then, the same spammers have used this method to advertise more than 100 different crypto investment-themed domains. Chaput said that at one point this month the volume of bot accounts being registered for the crypto spam campaign started overwhelming the servers that handle new signups at Mastodon.social.

“We suddenly went from like three registrations per minute to 900 a minute,” Chaput said. “There was nothing in the Mastodon software to detect that activity, and the protocol is not designed to handle this.”

One of the crypto investment scam messages promoted in the spam campaigns on Mastodon this month.

Seeking to gain a temporary handle on the spam wave, Chaput said he briefly disabled new account registrations on mastodon.social and mastondon.online. Shortly after that, those same servers came under a sustained distributed denial-of-service (DDoS) attack.

Chaput said whoever was behind the DDoS was definitely not using point-and-click DDoS tools, like a booter or stresser service.

“This was three hours non-stop, 200,000 to 400,000 requests per second,” Chaput said of the DDoS. “At first, they were targeting one path, and when we blocked that they started to randomize things. Over three hours the attack evolved several times.”

Chaput says the spam waves have died down since they retrofitted mastodon.social with a CAPTCHA, those squiggly letter and number combinations designed to stymie automated account creation tools. But he’s worried that other Mastodon instances may not be as well-staffed and might be easy prey for these spammers.

“We don’t know if this is the work of one person, or if this is [related to] software or services being sold to others,” Chaput told KrebsOnSecurity. “We’re really impressed by the scale of it — using hundreds of domains and thousands of Microsoft email addresses.”

Chaput said a review of their logs indicates many of the newly registered Mastodon spam accounts were registered using the same 0auth credentials, and that a domain common to those credentials was quot[.]pw.

A DIRECT QUOT

The domain quot[.]pw has been registered and abandoned by several parties since 2014, but the most recent registration data available through DomainTools.com shows it was registered in March 2020 to someone in Krasnodar, Russia with the email address edgard011012@gmail.com.

This email address is also connected to accounts on several Russian cybercrime forums, including “__edman__,” who had a history of selling “logs” — large amounts of data stolen from many bot-infected computers — as well as giving away access to hacked Internet of Things (IoT) devices.

In September 2018, a user by the name “ципа” (phonetically “Zipper” in Russian) registered on the Russian hacking forum Lolzteam using the edgard0111012@gmail.com address. In May 2020, Zipper told another Lolzteam member that quot[.]pw was their domain. That user advertised a service called “Quot Project” which said they could be hired to write programming scripts in Python and C++.

“I make Telegram bots and other rubbish cheaply,” reads one February 2020 sales thread from Zipper.

Quotpw/Ahick/Edgard/ципа advertising his coding services in this Google-translated forum posting.

Clicking the “open chat in Telegram” button on Zipper’s Lolzteam profile page launched a Telegram instant message chat window where the user Quotpw responded almost immediately. Asked if they were aware their domain was being used to manage a spam botnet that was pelting Mastodon instances with crypto scam spam, Quotpw confirmed the spam was powered by their software.

“It was made for a limited circle of people,” Quotpw said, noting that they recently released the bot software as open source on GitHub.

Quotpw went on to say the spam botnet was powered by well more than the hundreds of IP addresses tracked by Chaput, and that these systems were mostly residential proxies. A residential proxy generally refers to a computer or mobile device running some type of software that enables the system to be used as a pass-through for Internet traffic from others.

Very often, this proxy software is installed surreptitiously, such as through a “Free VPN” service or mobile app. Residential proxies also can refer to households protected by compromised home routers running factory-default credentials or outdated firmware.

Quotpw maintains they have earned more than $2,000 sending roughly 100,000 private mentions to users of different Mastodon communities over the past few weeks. Quotpw said their conversion rate for the same bot-powered direct message spam on Twitter is usually much higher and more profitable, although they conceded that recent adjustments to Twitter’s anti-bot CAPTCHA have put a crimp in their Twitter earnings.

“My partners (I’m programmer) lost time and money while ArkoseLabs (funcaptcha) introduced new precautions on Twitter,” Quotpw wrote in a Telegram reply. “On Twitter, more spam and crypto scam.”

Asked whether they felt at all conflicted about spamming people with invitations to cryptocurrency scams, Quotpw said in their hometown “they pay more for such work than in ‘white’ jobs” — referring to legitimate programming jobs that don’t involve malware, botnets, spams and scams.

“Consider salaries in Russia,” Quotpw said. “Any spam is made for profit and brings illegal money to spammers.”

THE VIENNA CONNECTION

Shortly after edgard011012@gmail.com registered quot[.]pw, the WHOIS registration records for the domain were changed again, to msr-sergey2015@yandex.ru, and to a phone number in Austria: +43.6607003748.

Constella Intelligence, a company that tracks breached data, finds that the address msr-sergey2015@yandex.ru has been associated with accounts at the mobile app site aptoide.com (user: CoolappsforAndroid) and vimeworld.ru that were created from different Internet addresses in Vienna, Austria.

A search in Skype on that Austrian phone number shows it belongs to a Sergey Proshutinskiy who lists his location as Vienna, Austria. The very first result that comes up when one searches that unusual name in Google is a LinkedIn profile for a Sergey Proshutinskiy from Vienna, Austria.

Proshutinskiy’s LinkedIn profile says he is a Class of 2024 student at TGM, which is a state-owned, technical and engineering school in Austria. His resume also says he is a data science intern at Mondi Group, an Austrian manufacturer of sustainable packaging and paper.

Mr. Proshutinskiy did not respond to requests for comment.

Quotpw denied being Sergey, and said Sergey was a friend who registered the domain as a birthday present and favor last year.

“Initially, I bought it for 300 rubles,” Quotpw explained. “The extension cost 1300 rubles (expensive). I waited until it expired and forgot to buy it. After that, a friend (Sergey) bought [the] domain and transferred access rights to me.”

“He’s not even an information security specialist,” Quotpw said of Sergey. “My friends do not belong to this field. None of my friends are engaged in scams or other black [hat] activities.”

It may seem unlikely that someone would go to all this trouble to spam Mastodon users over several weeks using an impressive number of resources — all for just $2,000 in profit. But it is likely that whoever is actually running the various crypto scam platforms advertised by Quotpw’s spam messages pays handsomely for any investments generated by their spam.

According to the FBI, financial losses from cryptocurrency investment scams dwarfed losses for all other types of cybercrime in 2022, rising from $907 million in 2021 to $2.57 billion last year.

Update, May 25, 10:30 a.m.:  Corrected attribution of the Austrian school TGM.

A Mysterious Group Has Ties to 15 Years of Ukraine-Russia Hacks

By Lily Hay Newman
Kaspersky researchers have uncovered clues that further illuminate the hackers’ activities, which appear to have begun far earlier than originally believed.

WebKit Under Attack: Apple Issues Emergency Patches for 3 New Zero-Day Vulnerabilities

By Ravie Lakshmanan
Apple on Thursday rolled out security updates to iOS, iPadOS, macOS, tvOS, watchOS, and the Safari web browser to address dozens of flaws, including three new zero-days that it said are being actively exploited in the wild. The three security shortcomings are listed below - CVE-2023-32409 - A WebKit flaw that could be exploited by a malicious actor to break out of the Web Content sandbox. It

Critical Flaws in Cisco Small Business Switches Could Allow Remote Attacks

By Ravie Lakshmanan
Cisco has released updates to address a set of nine security flaws in its Small Business Series Switches that could be exploited by an unauthenticated, remote attacker to run arbitrary code or cause a denial-of-service (DoS) condition. "These vulnerabilities are due to improper validation of requests that are sent to the web interface," Cisco said, crediting an unnamed external researcher for

ChatGPT Scams Are Infiltrating Apple's App Store and Google Play

By Lily Hay Newman
An explosion of interest in OpenAI’s sophisticated chatbot means a proliferation of “fleeceware” apps that trick users with sneaky in-app subscriptions.

Re-Victimization from Police-Auctioned Cell Phones

By BrianKrebs

Countless smartphones seized in arrests and searches by police forces across the United States are being auctioned online without first having the data on them erased, a practice that can lead to crime victims being re-victimized, a new study found. In response, the largest online marketplace for items seized in U.S. law enforcement investigations says it now ensures that all phones sold through its platform will be data-wiped prior to auction.

Researchers at the University of Maryland last year purchased 228 smartphones sold “as-is” from PropertyRoom.com, which bills itself as the largest auction house for police departments in the United States. Of phones they won at auction (at an average of $18 per phone), the researchers found 49 had no PIN or passcode; they were able to guess an additional 11 of the PINs by using the top-40 most popular PIN or swipe patterns.

Phones may end up in police custody for any number of reasons — such as its owner was involved in identity theft — and in these cases the phone itself was used as a tool to commit the crime.

“We initially expected that police would never auction these phones, as they would enable the buyer to recommit the same crimes as the previous owner,” the researchers explained in a paper released this month. “Unfortunately, that expectation has proven false in practice.”

The researchers said while they could have employed more aggressive technological measures to work out more of the PINs for the remaining phones they bought, they concluded based on the sample that a great many of the devices they won at auction had probably not been data-wiped and were protected only by a PIN.

Beyond what you would expect from unwiped second hand phones — every text message, picture, email, browser history, location history, etc. — the 61 phones they were able to access also contained significant amounts of data pertaining to crime — including victims’ data — the researchers found.

Some readers may be wondering at this point, “Why should we care about what happens to a criminal’s phone?” First off, it’s not entirely clear how these phones ended up for sale on PropertyRoom.

“Some folks are like, ‘Yeah, whatever, these are criminal phones,’ but are they?” said Dave Levin, an assistant professor of computer science at University of Maryland.

“We started looking at state laws around what they’re supposed to do with lost or stolen property, and we found that most of it ends up going the same route as civil asset forfeiture,” Levin continued. “Meaning, if they can’t find out who owns something, it eventually becomes the property of the state and gets shipped out to these resellers.”

Also, the researchers found that many of the phones clearly had personal information on them regarding previous or intended targets of crime: A dozen of the phones had photographs of government-issued IDs. Three of those were on phones that apparently belonged to sex workers; their phones contained communications with clients.

An overview of the phone functionality and data accessibility for phones purchased by the researchers.

One phone had full credit files for eight different people on it. On another device they found a screenshot including 11 stolen credit cards that were apparently purchased from an online carding shop. On yet another, the former owner had apparently been active in a Telegram group chat that sold tutorials on how to run identity theft scams.

The most interesting phone from the batches they bought at auction was one with a sticky note attached that included the device’s PIN and the notation “Gry Keyed,” no doubt a reference to the Graykey software that is often used by law enforcement agencies to brute-force a mobile device PIN.

“That one had the PIN on the back,” Levin said. “The message chain on that phone had 24 Experian and TransUnion credit histories”.

The University of Maryland team said they took care in their research not to further the victimization of people whose information was on the devices they purchased from PropertyRoom.com. That involved ensuring that none of the devices could connect to the Internet when powered on, and scanning all images on the devices against known hashes for child sexual abuse material.

It is common to find phones and other electronics for sale on auction platforms like eBay that have not been wiped of sensitive data, but in those cases eBay doesn’t possess the items being sold. In contrast, platforms like PropertyRoom obtain devices and resell them at auction directly.

PropertyRoom did not respond to multiple requests for comment. But the researchers said sometime in the past few months PropertyRoom began posting a notice stating that all mobile devices would be wiped of their data before being sold at auction.

“We informed them of our research in October 2022, and they responded that they would review our findings internally,” Levin said. “They stopped selling them for a while, but then it slowly came back, and then we made sure we won every auction. And all of the ones we got from that were indeed wiped, except there were four devices that had external SD [storage] cards in them that weren’t wiped.”

A copy of the University of Maryland study is here (PDF).

Hackers Using Golang Variant of Cobalt Strike to Target Apple macOS Systems

By Ravie Lakshmanan
A Golang implementation of Cobalt Strike called Geacon is likely to garner the attention of threat actors looking to target Apple macOS systems. That's according to findings from SentinelOne, which observed an increase in the number of Geacon payloads appearing on VirusTotal in recent months. "While some of these are likely red-team operations, others bear the characteristics of genuine

Industrial Cellular Routers at Risk: 11 New Vulnerabilities Expose OT Networks

By Ravie Lakshmanan
Several security vulnerabilities have been disclosed in cloud management platforms associated with three industrial cellular router vendors that could expose operational technology (OT) networks to external attacks. The findings were presented by Israeli industrial cybersecurity firm OTORIO at the Black Hat Asia 2023 conference last week. "Industrial cellular routers and gateways are essential

Andoryu Botnet Exploits Critical Ruckus Wireless Flaw for Widespread Attack

By Ravie Lakshmanan
A nascent botnet called Andoryu has been found to exploit a now-patched critical security flaw in the Ruckus Wireless Admin panel to break into vulnerable devices. The flaw, tracked as CVE-2023-25717 (CVSS score: 9.8), stems from improper handling of HTTP requests, leading to unauthenticated remote code execution and a complete compromise of wireless Access Point (AP) equipment. Andoryu was 

GitHub Extends Push Protection to Prevent Accidental Leaks of Keys and Other Secrets

By Ravie Lakshmanan
GitHub has announced the general availability of a new security feature called push protection, which aims to prevent developers from inadvertently leaking keys and other secrets in their code. The Microsoft-owned cloud-based repository hosting platform, which began testing the feature a year ago, said it's also extending push protection to all public repositories at no extra cost. The

Feds Take Down 13 More DDoS-for-Hire Services

By BrianKrebs

The U.S. Federal Bureau of Investigation (FBI) this week seized 13 domain names connected to “booter” services that let paying customers launch crippling distributed denial-of-service (DDoS) attacks. Ten of the domains are reincarnations of DDoS-for-hire services the FBI seized in December 2022, when it charged six U.S. men with computer crimes for allegedly operating booters.

Booter services are advertised through a variety of methods, including Dark Web forums, chat platforms and even youtube.com. They accept payment via PayPal, Google Wallet, and/or cryptocurrencies, and subscriptions can range in price from just a few dollars to several hundred per month. The services are generally priced according to the volume of traffic to be hurled at the target, the duration of each attack, and the number of concurrent attacks allowed.

The websites that saw their homepages replaced with seizure notices from the FBI this week include booter services like cyberstress[.]org and exoticbooter[.]com, which the feds say were used to launch millions of attacks against millions of victims.

“School districts, universities, financial institutions and government websites are among the victims who have been targeted in attacks launched by booter services,” federal prosecutors in Los Angeles said in a statement.

Purveyors of booters or “stressers” claim they are not responsible for how customers use their services, and that they aren’t breaking the law because — like most security tools — these services can be used for good or bad purposes. Most booter sites employ wordy “terms of use” agreements that require customers to agree they will only stress-test their own networks — and that they won’t use the service to attack others.

But the DOJ says these disclaimers usually ignore the fact that most booter services are heavily reliant on constantly scanning the Internet to commandeer misconfigured devices that are critical for maximizing the size and impact of DDoS attacks. What’s more, none of the services seized by the government required users to demonstrate that they own the Internet addresses being stress-tested, something a legitimate testing service would insist upon.

This is the third in a series of U.S. and international law enforcement actions targeting booter services. In December 2022, the feds seized four-dozen booter domains and charged six U.S. men with computer crimes related to their alleged ownership of the popular DDoS-for-hire services. In December 2018, the feds targeted 15 booter sites, and three booter store defendants who later pleaded guilty.

While the FBI’s repeated seizing of booter domains may seem like an endless game of virtual Whac-a-Mole, continuously taking these services offline imposes high enough costs for the operators that some of them will quit the business altogether, says Richard Clayton, director of Cambridge University’s Cybercrime Centre.

In 2020, Clayton and others published “Cybercrime is Mostly Boring,” an academic study on the quality and types of work needed to build, maintain and defend illicit enterprises that make up a large portion of the cybercrime-as-a-service market. The study found that operating a booter service effectively requires a mind-numbing amount of constant, tedious work that tends to produce high burnout rates for booter service operators — even when the service is operating efficiently and profitably.

For example, running an effective booter service requires a substantial amount of administrative work and maintenance, much of which involves constantly scanning for, commandeering and managing large collections of remote systems that can be used to amplify online attacks, Clayton said. On top of that, building brand recognition and customer loyalty takes time.

“If you’re running a booter and someone keeps taking your domain or hosting away, you have to then go through doing the same boring work all over again,” Clayton told KrebsOnSecurity. “One of the guys the FBI arrested in December [2022] spent six months moaning that he lost his servers, and could people please lend him some money to get it started again.”

In a statement released Wednesday, prosecutors in Los Angeles said four of the six men charged last year for running booter services have since pleaded guilty. However, at least one of the defendants from the 2022 booter bust-up — John M. Dobbs, 32, of Honolulu, HI — has pleaded not guilty and is signaling he intends to take his case to trial.

The FBI seizure notice that replaced the homepages of several booter services this week.

Dobbs is a computer science graduate student who for the past decade openly ran IPStresser[.]com, a popular and powerful attack-for-hire service that he registered with the state of Hawaii using his real name and address. Likewise, the domain was registered in Dobbs’s name and hometown in Pennsylvania. Prosecutors say Dobbs’ service attracted more than two million registered users, and was responsible for launching a staggering 30 million distinct DDoS attacks.

Many accused stresser site operators have pleaded guilty over the years after being hit with federal criminal charges. But the government’s core claim — that operating a booter site is a violation of U.S. computer crime laws — wasn’t properly tested in the courts until September 2021.

That was when a jury handed down a guilty verdict against Matthew Gatrel, a then 32-year-old St. Charles, Ill. man charged in the government’s first 2018 mass booter bust-up. Despite admitting to FBI agents that he ran two booter services (and turning over plenty of incriminating evidence in the process), Gatrel opted to take his case to trial, defended the entire time by court-appointed attorneys.

Gatrel was convicted on all three charges of violating the Computer Fraud and Abuse Act, including conspiracy to commit unauthorized impairment of a protected computer, conspiracy to commit wire fraud, and unauthorized impairment of a protected computer. He was sentenced to two years in prison.

A copy of the FBI’s booter seizure warrant is here (PDF). According to the DOJ, the defendants who pleaded guilty to operating booter sites include:

Jeremiah Sam Evans Miller, aka “John The Dev,” 23, of San Antonio, Texas, who pleaded guilty on April 6 to conspiracy and violating the computer fraud and abuse act related to the operation of a booter service named RoyalStresser[.]com (formerly known as Supremesecurityteam[.]com);

Angel Manuel Colon Jr., aka “Anonghost720” and “Anonghost1337,” 37, of Belleview, Florida, who pleaded guilty on February 13 to conspiracy and violating the computer fraud and abuse act related to the operation of a booter service named SecurityTeam[.]io;

Shamar Shattock, 19, of Margate, Florida, who pleaded guilty on March 22 to conspiracy to violate the computer fraud and abuse act related to the operation of a booter service known as Astrostress[.]com;

Cory Anthony Palmer, 23, of Lauderhill, Florida, who pleaded guilty on February 16 to conspiracy to violate the computer fraud and abuse act related to the operation of a booter service known as Booter[.]sx.

All four defendants are scheduled to be sentenced this summer.

The booter domains seized by the FBI this week include:

cyberstress[.]org
exoticbooter[.]com
layerstress[.]net
orbitalstress[.]xyz
redstresser[.]io
silentstress[.]wtf
sunstresser[.]net
silent[.]to
mythicalstress[.]net
dreams-stresser[.]org
stresserbest[.]io
stresserus[.]io
quantum-stress[.]org

Product Security: Harnessing the Collective Experience and Collaborative Tools in DevSecOps

By The Hacker News
In the fast-paced cybersecurity landscape, product security takes center stage. DevSecOps swoops in, seamlessly merging security practices into DevOps, empowering teams to tackle challenges. Let's dive into DevSecOps and explore how collaboration can give your team the edge to fight cyber villains. Application security and product security Regrettably, application security teams often intervene

New Ransomware Strain 'CACTUS' Exploits VPN Flaws to Infiltrate Networks

By Ravie Lakshmanan
Cybersecurity researchers have shed light on a new ransomware strain called CACTUS that has been found to leverage known flaws in VPN appliances to obtain initial access to targeted networks. "Once inside the network, CACTUS actors attempt to enumerate local and network user accounts in addition to reachable endpoints before creating new user accounts and leveraging custom scripts to automate

SideCopy Using Action RAT and AllaKore RAT to infiltrate Indian Organizations

By Ravie Lakshmanan
The suspected Pakistan-aligned threat actor known as SideCopy has been observed leveraging themes related to the Indian military research organization as part of an ongoing phishing campaign. This involves using a ZIP archive lure pertaining to India's Defence Research and Development Organization (DRDO) to deliver a malicious payload capable of harvesting sensitive information, Fortinet

Doctors Behind Mifepristone Ban Called ‘Christians’ a Top Threat

By Dell Cameron, Dhruv Mehrotra
Leaked documents reveal that the American College of Pediatricians viewed “mainstream medicine” and “nominal Christians” as its opposition.

Cisco Warns of Vulnerability in Popular Phone Adapter, Urges Migration to Newer Model

By Ravie Lakshmanan
Cisco has warned of a critical security flaw in SPA112 2-Port Phone Adapters that it said could be exploited by a remote attacker to execute arbitrary code on affected devices. The issue, tracked as CVE-2023-20126, is rated 9.8 out of a maximum of 10 on the CVSS scoring system. The company credited Catalpa of DBappSecurity for reporting the shortcoming. The product in question makes it possible

$10M Is Yours If You Can Get This Guy to Leave Russia

By BrianKrebs

The U.S. government this week put a $10 million bounty on a Russian man who for the past 18 years operated Try2Check, one of the cybercrime underground’s most trusted services for checking the validity of stolen credit card data. U.S. authorities say 43-year-old Denis Kulkov‘s card-checking service made him at least $18 million, which he used to buy a Ferrari, Land Rover, and other luxury items.

Denis Kulkov, a.k.a. “Nordex,” in his Ferrari. Image: USDOJ.

Launched in 2005, Try2Check soon was processing more than a million card-checking transactions per month — charging 20 cents per transaction. Cybercriminals turned to services like this after purchasing stolen credit card data from an underground shop, with an eye toward minimizing the number of cards that are inactive by the time they are put to criminal use.

Try2Check was so reliable that it eventually became the official card-checking service for some of the underground’s most bustling crime bazaars, including Vault Market, Unicc, and Joker’s Stash. Customers of these carding shops who chose to use the shop’s built-in (but a-la-carte) card checking service from Try2Check could expect automatic refunds on any cards that were found to be inactive or canceled at the time of purchase.

Many established stolen card shops will allow customers to request refunds on dead cards based on official reports from trusted third-party checking services. But in general, the bigger shops have steered customers toward using their own white-labeled version of the Try2Check service — primarily to help minimize disputes over canceled cards.

On Wednesday, May 3, Try2Check’s websites were replaced with a domain seizure notice from the U.S. Secret Service and U.S. Department of Justice, as prosecutors in the Eastern District of New York unsealed an indictment and search warrant naming Denis Gennadievich Kulkov of Samara, Russia as the proprietor.

Try2Check’s login pages have been replaced with a seizure notice from U.S. law enforcement.

At the same time, the U.S. Department of State issued a $10 million reward for information leading to the arrest or conviction of Kulkov. In November 2021, the State Department began offering up to to $10 million for the name or location of any key leaders of REvil, a major Russian ransomware gang.

As noted in the Secret Service’s criminal complaint (PDF), the Try2Check service was first advertised on the closely-guarded Russian cybercrime forum Mazafaka, by someone using the handle “KreenJo.” That handle used the same ICQ instant messenger account number (555724) as a Mazafaka denizen named “Nordex.”

In February 2005, Nordex posted to Mazafaka that he was in the market for hacked bank accounts, and offered 50 percent of the take. He asked interested partners to contact him at the ICQ number 228427661 or at the email address polkas@bk.ru. As the government noted in its search warrant, Nordex exchanged messages with forum users at the time identifying himself as a then-24-year-old “Denis” from Samara, RU.

In 2017, U.S. law enforcement seized the cryptocurrency exchange BTC-e, and the Secret Service said those records show that a Denis Kulkov from Samara supplied the username “Nordexin,” email address nordexin@ya.ru, and an address in Samara.

Investigators had already found Instagram accounts where Kulkov posted pictures of his Ferrari and his family. Authorities were able to identify that Kulkov had an iCloud account tied to the address nordexin@icloud.com, and upon subpoenaing that found passport photos of Kulkov, and well as more photos of his family and pricey cars.

Like many other top cybercriminals based in Russia or in countries with favorable relations to the Kremlin, the proprietor of Try2Check was not particularly difficult to link to a real-life identity. In Kulkov’s case, it no doubt was critical to U.S. investigators that they had access to a wealth of personal information tied to a cryptocurrency exchange Kulkov had used.

However, the link between Kulkov and Try2Check can be made — ironically — based on records that have been plundered by hackers and published online over the years — including Russian email services, Russian government records, and hacked cybercrime forums.

NORDEX

Kulkov posing with his passport, in a photo authorities obtained by subpoenaing his iCloud account.

According to cybersecurity firm Constella Intelligence, the address polkas@bk.ru was used to register an account with the username “Nordex” at bankir[.]com, a now defunct news website that was almost standard reading for Russian speakers interested in news about various Russian financial markets.

Nordex appears to have been a finance nerd. In his early days on the forums, Nordex posted several long threads on his views about the Russian stock market and mutual fund investments.

That Bankir account was registered from the Internet address 193.27.237.66 in Samara, Russia, and included Nordex’s date of birth as April 8, 1980, as well as their ICQ number (228427661).

Cyber intelligence firm Intel 471 found that Internet address also was used to register the account “Nordex” on the Russian hacking forum Exploit back in 2006.

Constella tracked another Bankir[.]com account created from that same Internet address under the username “Polkas.” This account had the same date of birth as Nordex, but a different email address: nordia@yandex.ru. This and other “nordia@” emails shared a password: “anna59.”

NORDIA

Nordia@yandex.ru shares several passwords with nordia@list.ru, which Constella says was used to create an account at a religious website for an Anna Kulikova from Samara. At the Russian home furnishing store Westwing.ru, Ms. Kulikova listed her full name as Anna Vnrhoturkina Kulikova, and her address as 29 Kommunistrecheskya St., Apt. 110.

A search on that address in Constella brings up a record for an Anna Denis Vnrhoturkina Kulkov, and the phone number 879608229389.

Russian vehicle registration records have also been hacked and leaked online over the years. Those records show that Anna’s Apt 110 address is tied to a Denis Gennadyvich Kulkov, born April 8, 1980.

The vehicle Kolkov registered in 2015 at that address was a 2010 Ferrari Italia, with the license plate number K022YB190. The phone number associated with this record — 79608229389 — is exactly like Anna’s, only minus the (mis?)leading “8”. That number also is tied to a now-defunct Facebook account, and to the email addresses nordexin@ya.ru and nordexin@icloud.com.

Kulkov’s Ferrari has been photographed numerous times over the years by Russian car aficionados, including this one with the driver’s face redacted by the photographer:

The Ferrari owned by Denis Kulkov, spotted in Moscow in 2016. Image: Migalki.net.

As the title of this story suggests, the hard part for Western law enforcement isn’t identifying the Russian cybercriminals who are major players in the scene. Rather, it’s finding creative ways to capture high-value suspects if and when they do leave the protection that Russia generally extends to domestic cybercriminals within its borders who do not also harm Russian companies or consumers, or interfere with state interests.

But Russia’s war against Ukraine has caused major fault lines to appear in the cybercrime underground: Cybercriminal syndicates that previously straddled Russia and Ukraine with ease were forced to reevaluate many comrades who were suddenly working for The Other Side.

Many cybercriminals who operated with impunity from Russia and Ukraine prior to the war chose to flee those countries following the invasion, presenting international law enforcement agencies with rare opportunities to catch most-wanted cybercrooks. One of those was Mark Sokolovsky, a 26-year-old Ukrainian man who operated the popular “Raccoon” malware-as-a-service offering; Sokolovsky was apprehended in March 2022 after fleeing Ukraine’s mandatory military service orders.

Also nabbed on the lam last year was Vyacheslav “Tank” Penchukov, a senior Ukrainian member of a transnational cybercrime group that stole tens of millions of dollars over nearly a decade from countless hacked businesses. Penchukov was arrested after leaving Ukraine to meet up with his wife in Switzerland.

CISA Issues Advisory on Critical RCE Affecting ME RTU Remote Terminal Units

By Ravie Lakshmanan
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Tuesday released an Industrial Control Systems (ICS) advisory about a critical flaw affecting ME RTU remote terminal units. The security vulnerability, tracked as CVE-2023-2131, has received the highest severity rating of 10.0 on the CVSS scoring system for its low attack complexity. "Successful exploitation of this

Promising Jobs at the U.S. Postal Service, ‘US Job Services’ Leaks Customer Data

By BrianKrebs

A sprawling online company based in Georgia that has made tens of millions of dollars purporting to sell access to jobs at the United States Postal Service (USPS) has exposed its internal IT operations and database of nearly 900,000 customers. The leaked records indicate the network’s chief technology officer in Pakistan has been hacked for the past year, and that the entire operation was created by the principals of a Tennessee-based telemarketing firm that has promoted USPS employment websites since 2016.

The website FederalJobsCenter promises to get you a job at the USPS in 30 days or your money back.

KrebsOnSecurity was recently contacted by a security researcher who said he found a huge tranche of full credit card records exposed online, and that at first glance the domain names involved appeared to be affiliated with the USPS.

Further investigation revealed a long-running international operation that has been emailing and text messaging people for years to sign up at a slew of websites that all promise they can help visitors secure employment at the USPS.

Sites like FederalJobsCenter[.]com also show up prominently in Google search results for USPS employment, and steer applicants toward making credit card “registration deposits” to ensure that one’s application for employment is reviewed. These sites also sell training, supposedly to help ace an interview with USPS human resources.

FederalJobsCenter’s website is full of content that makes it appear the site is affiliated with the USPS, although its “terms and conditions” state that it is not. Rather, the terms state that FederalJobsCenter is affiliated with an entity called US Job Services, which says it is based in Lawrenceville, Ga.

“US Job Services provides guidance, coaching, and live assistance to postal job candidates to help them perform better in each of the steps,” the website explains.

The site says applicants need to make a credit card deposit to register, and that this amount is refundable if the applicant is not offered a USPS job within 30 days after the interview process.

But a review of the public feedback on US Job Services and dozens of similar names connected to this entity over the years shows a pattern of activity: Applicants pay between $39.99 and $100 for USPS job coaching services, and receive little if anything in return. Some reported being charged the same amount monthly.

The U.S. Federal Trade Commission (FTC) has sued several times over the years to disrupt various schemes offering to help people get jobs at the Postal Service. Way back in 1998, the FTC and the USPS took action against several organizations that were selling test or interview preparation services for potential USPS employees.

“Companies promising jobs with the U.S. Postal Service are breaking federal law,” the joint USPS-FTC statement said.

In that 1998 case, the defendants behind the scheme were taking out classified ads in newspapers. Ditto for a case the FTC brought in 2005. By 2008, the USPS job exam preppers had shifted to advertising their schemes mostly online. And in 2013, the FTC won a nearly $5 million judgment against a Kentucky company purporting to offer such services.

Tim McKinlay authored a report last year at Affiliateunguru.com on whether the US Job Services website job-postal[.]com was legitimate or a scam. He concluded it was a scam based on several factors, including that the website listed multiple other names (suggesting it had recently switched names), and that he got nothing from the transaction with the job site.

“They openly admit they’re not affiliated with the US Postal Service, but claim to be experts in the field, and that, just by following the steps on their site, you easily pass the postal exams and get a job in no time,” McKinlay wrote. “But it’s really just a smoke and mirrors game. The site’s true purpose is to collect $46.95 from as many people as possible. And considering how popular this job is, they’re probably making a killing.”

US JOB SERVICES

KrebsOnSecurity was alerted to the data exposure by Patrick Barry, chief information officer at Charlotte, NC based Rebyc Security. Barry said he found that not only was US Job Services leaking its customer payment records in real-time and going back to 2016, but its website also leaked a log file from 2019 containing the site administrator’s contact information and credentials to the site’s back-end database.

Barry shared screenshots of that back-end database, which show the email address for the administrator of US Job Services is tab.webcoder@gmail.com. According to cyber intelligence platform Constella Intelligence, that email address is tied to the LinkedIn profile for a developer in Karachi, Pakistan named Muhammed Tabish Mirza.

A search on tab.webcoder@gmail.com at DomainTools.com reveals that email address was used to register several USPS-themed domains, including postal2017[.]com, postaljobscenter[.]com and usps-jobs[.]com.

Mr. Mirza declined to respond to questions, but the exposed database information was removed from the Internet almost immediately after KrebsOnSecurity shared the offending links.

A “Campaigns” tab on that web panel listed several advertising initiatives tied to US Job Services websites, with names like “walmart drip campaign,” “hiring activity due to virus,” “opt-in job alert SMS,” and “postal job opening.”

Another page on the US Job Services panel included a script for upselling people who call in response to email and text message solicitations, with an add-on program that normally sells for $1,200 but is being “practically given away” for a limited time, for just $49.

An upselling tutorial for call center employees.

“There’s something else we have you can take advantage of that can help you make more money,” the script volunteers. “It’s an easy to use 12-month career development plan and program to follow that will result in you getting any job you want, not just at the post office….anywhere…and then getting promoted rapidly.”

It’s bad enough that US Job Services was leaking customer data: Constella Intelligence says the email address tied to Mr. Mirza shows up in more than a year’s worth of “bot logs” created by a malware infection from the Redline infostealer.

Constella reports that for roughly a year between 2021 and 2022, a Microsoft Windows device regularly used by Mr. Mirza and his colleagues was actively uploading all of the device’s usernames, passwords and authentication cookies to cybercriminals based in Russia.

NEXT LEVEL SUPPORT

The web-based backend for US Job Services lists more than 160 people under its “Users & Teams” tab. This page indicates that access to the consumer and payment data collected by US Job Services is currently granted to several other coders who work with Mr. Mirza in Pakistan, and to multiple executives, contractors and employees working for a call center in Murfreesboro, Tennessee.

The call center — which operates as Nextlevelsupportcenters[.]com and thenextlevelsupport[.]com — curiously has several key associates with a history of registering USPS jobs-related domain names.

The US Job Services website has more than 160 users, including most of the employees at Next Level Support.

The website for NextLevelSupport says it was founded in 2017 by a Gary Plott, whose LinkedIn profile describes him as a seasoned telecommunications industry expert. The leaked backend database for US Job Services says Plott is a current administrator on the system, along with several other Nextlevel founders listed on the company’s site.

Reached via telephone, Plott initially said his company was merely a “white label” call center that multiple clients use to interact with customers, and that the content their call center is responsible for selling on behalf of US Job Services was not produced by NextLevelSupport.

“A few years ago, we started providing support for this postal product,” Plott said. “We didn’t develop the content but agreed we would support it.”

Interestingly, DomainTools says the Gmail address used by Plott in the US Jobs system was also used to register multiple USPS job-related domains, including postaljobssite[.]com, postalwebsite[.]com, usps-nlf[.]com, usps-nla[.]com.

Asked to reconcile this with his previous statement, Plott said he never did anything with those sites but acknowledged that his company did decide to focus on the US Postal jobs market from the very beginning.

Plott said his company never refuses to issue a money-back request from a customer, because doing so would result in costly chargebacks for NextLevel (and presumably for the many credit card merchant accounts apparently set up by Mr. Mirza).

“We’ve never been deceptive,” Plott said, noting that customers of the US Job Services product receive a digital download with tips on how to handle a USPS interview, as well as unlimited free telephone support if they need it.

“We’ve never told anyone we were the US Postal Service,” Plott continued. “We make sure people fully understand that they are not required to buy this product, but we think we can help you and we have testimonials from people we have helped. But ultimately you as the customer make that decision.”

An email address in the US Job Services teams page for another user — Stephanie Dayton — was used to register the domains postalhiringreview[.]com, and postalhiringreviewboard[.]org back in 2014. Reached for comment, Ms. Dayton said she has provided assistance to Next Level Support Centers with their training and advertising, but never in the capacity as an employee.

Perhaps the most central NextLevel associate who had access to US Job Services was Russell Ramage, a telemarketer from Warner Robins, Georgia. Ramage is listed in South Carolina incorporation records as the owner of a now-defunct call center service called Smart Logistics, a company whose name appears in the website registration records for several early and long-running US Job Services sites.

According to the state of Georgia, Russell Ramage was the registered agent of several USPS job-themed companies.

The leaked records show the email address used by Ramage also registered multiple USPS jobs-related domains, including postalhiringcenter[.]com, postalhiringreviews[.]com, postaljobs-email[.]com, and postaljobssupport1[.]com.

A review of business incorporation records in Georgia indicate Ramage was the registered agent for at least three USPS-related companies over the years, including Postal Career Placement LLC, Postal Job Services Inc., and Postal Operations Inc. All three companies were founded in 2015, and are now dissolved.

An obituary dated February 2023 says Russell Ramage recently passed away at the age of 41. No cause of death was stated, but the obituary goes on to say that Russ “Rusty” Ramage was “preceded in death by his mother, Anita Lord Ramage, pets, Raine and Nola and close friends, Nicole Reeves and Ryan Rawls.”

In 2014, then 33-year-old Ryan “Jootgater” Rawls of Alpharetta, Georgia pleaded guilty to conspiring to distribute controlled substances. Rawls also grew up in Warner Robins, and was one of eight suspects charged with operating a secret darknet narcotics ring called the Farmer’s Market, which federal prosecutors said trafficked in millions of dollars worth of controlled substances.

Reuters reported that an eighth suspect in that case had died by the time of Rawls’ 2014 guilty plea, although prosecutors declined to offer further details about that. According to his obituary, Ryan Christopher Rawls died at the age of 38 on Jan. 28, 2019.

In a comment on Ramage’s memorial wall, Stephanie Dayton said she began working with Ramage in 2006.

“Our friendship far surpassed a working one, we had a very close bond and became like brother and sister,” Dayton wrote. “I loved Russ deeply and he was like family. He was truly one of the best human beings I have ever known. He was kind and sweet and truly cared about others. Never met anyone like him. He will be truly missed. RIP brother.”

The FTC and USPS note that while applicants for many entry-level postal jobs are required to take a free postal exam, the tests are usually offered only every few years in any particular district, and there are no job placement guarantees based on score.

“If applicants pass the test by scoring at least 70 out of 100, they are placed on a register, ranked by their score,” the FTC explained. “When a position becomes open, the local post office looks to the applicable register for that geographic location and calls the top three applicants. The score is only one of many criteria taken into account for employment. The exams test general aptitude, something that cannot necessarily be increased by studying.”

The FTC says anyone interested in a job at the USPS should inquire at their local postal office, where applicants generally receive a free packet of information about required exams. More information about job opportunities at the postal service is available at the USPS’s careers website.

Michael Martel, spokesperson for the United States Postal Inspection Service, said in a written statement that the USPS has no affiliation with the websites or companies named in this story.

“To learn more about employment with USPS, visit USPS.com/careers,” Martel wrote. “If you are the victim of a crime online report it to the FBI’s Internet Crime Complaint Center (IC3) at www.ic3.gov. To report fraud committed through or toward the USPS, its employees, or customers, report it to the United States Postal Inspection Service (USPIS) at www.uspis.gov/report.”

According to the leaked back-end server for US Job Services, here is a list of the current sites selling this product:

usjobshelpcenter[.]com
usjobhelpcenter[.]com
job-postal[.]com
localpostalhiring[.]com
uspostalrecruitment[.]com
postalworkerjob[.]com
next-level-now[.]com
postalhiringcenters[.]com
postofficehiring[.]com
postaljobsplacement[.]com
postal-placement[.]com
postofficejobopenings[.]com
postalexamprep[.]com
postaljobssite[.]com
postalwebsite[.]com
postalcareerscenters[.]com
postal-hiring[.]com
postal-careers[.]com
postal-guide[.]com
postal-hiring-guide[.]com
postal-openings[.]com
postal-placement[.]com
postofficeplacements[.]com
postalplacementservices[.]com
postaljobs20[.]com
postal-jobs-placement[.]com
postaljobopenings[.]com
postalemployment[.]com
postaljobcenters[.]com
postalmilitarycareers[.]com
epostaljobs[.]com
postal-job-center[.]com
postalcareercenter[.]com
postalhiringcenters[.]com
postal-job-center[.]com
postalcareercenter[.]com
postalexamprep[.]com
postalplacementcenters[.]com
postalplacementservice[.]com
postalemploymentservices[.]com
uspostalhiring[.]com

Researchers Uncover New BGP Flaws in Popular Internet Routing Protocol Software

By Ravie Lakshmanan
Cybersecurity researchers have uncovered weaknesses in a software implementation of the Border Gateway Protocol (BGP) that could be weaponized to achieve a denial-of-service (DoS) condition on vulnerable BGP peers. The three vulnerabilities reside in version 8.4 of FRRouting, a popular open source internet routing protocol suite for Linux and Unix platforms. It's currently used by several

Why Telecoms Struggle with SaaS Security

By The Hacker News
The telecom industry has always been a tantalizing target for cybercriminals. The combination of interconnected networks, customer data, and sensitive information allows cybercriminals to inflict maximum damage through minimal effort. It’s the breaches in telecom companies that tend to have a seismic impact and far-reaching implications — in addition to reputational damage, which can be

New Atomic macOS Malware Steals Keychain Passwords and Crypto Wallets

By Ravie Lakshmanan
Threat actors are advertising a new information stealer for the Apple macOS operating system called Atomic macOS Stealer (or AMOS) on Telegram for $1,000 per month, joining the likes of MacStealer. "The Atomic macOS Stealer can steal various types of information from the victim's machine, including Keychain passwords, complete system information, files from the desktop and documents folder, and

Zyxel Firewall Devices Vulnerable to Remote Code Execution Attacks — Patch Now

By Ravie Lakshmanan
Networking equipment maker Zyxel has released patches for a critical security flaw in its firewall devices that could be exploited to achieve remote code execution on affected systems. The issue, tracked as CVE-2023-28771, is rated 9.8 on the CVSS scoring system. Researchers from TRAPA Security have been credited with reporting the flaw. "Improper error message handling in some firewall versions

Many Public Salesforce Sites are Leaking Private Data

By BrianKrebs

A shocking number of organizations — including banks and healthcare providers — are leaking private and sensitive information from their public Salesforce Community websites, KrebsOnSecurity has learned. The data exposures all stem from a misconfiguration in Salesforce Community that allows an unauthenticated user to access records that should only be available after logging in.

A researcher found DC Health had five Salesforce Community sites exposing data.

Salesforce Community is a widely-used cloud-based software product that makes it easy for organizations to quickly create websites. Customers can access a Salesforce Community website in two ways: Authenticated access (requiring login), and guest user access (no login required). The guest access feature allows unauthenticated users to view specific content and resources without needing to log in.

However, sometimes Salesforce administrators mistakenly grant guest users access to internal resources, which can cause unauthorized users to access an organization’s private information and lead to potential data leaks.

Until being contacted by this reporter on Monday, the state of Vermont had at least five separate Salesforce Community sites that allowed guest access to sensitive data, including a Pandemic Unemployment Assistance program that exposed the applicant’s full name, Social Security number, address, phone number, email, and bank account number.

This misconfigured Salesforce Community site from the state of Vermont was leaking pandemic assistance loan application data, including names, SSNs, email address and bank account information.

Vermont’s Chief Information Security Officer Scott Carbee said his security teams have been conducting a full review of their Salesforce Community sites, and already found one additional Salesforce site operated by the state that was also misconfigured to allow guest access to sensitive information.

“My team is frustrated by the permissive nature of the platform,” Carbee said.

Carbee said the vulnerable sites were all created rapidly in response to the Coronavirus pandemic, and were not subjected to their normal security review process.

“During the pandemic, we were largely standing up tons of applications, and let’s just say a lot of them didn’t have the full benefit of our dev/ops process,” Carbee said. “In our case, we didn’t have any native Salesforce developers when we had to suddenly stand up all these sites.”

Earlier this week, KrebsOnSecurity notified Columbus, Ohio-based Huntington Bank that its recently acquired TCF Bank had a Salesforce Community website that was leaking documents related to commercial loans. The data fields in those loan applications included name, address, full Social Security number, title, federal ID, IP address, average monthly payroll, and loan amount.

Huntington Bank has disabled the leaky TCF Bank Salesforce website. Matthew Jennings, deputy chief information security officer at Huntington, said the company was still investigating how the misconfiguration occurred, how long it lasted, and how many records may have been exposed.

KrebsOnSecurity learned of the leaks from security researcher Charan Akiri, who said he wrote a program that identified hundreds of other organizations running misconfigured Salesforce pages. But Akiri said he’s been wary of probing too far, and has had difficulty getting responses from most of the organizations he has notified to date.

“In January and February 2023, I contacted government organizations and several companies, but I did not receive any response from these organizations,” Akiri said. “To address the issue further, I reached out to several CISOs on LinkedIn and Twitter. As a result, five companies eventually fixed the problem. Unfortunately, I did not receive any responses from government organizations.”

The problem Akiri has been trying to raise awareness about came to the fore in August 2021, when security researcher Aaron Costello published a blog post explaining how misconfigurations in Salesforce Community sites could be exploited to reveal sensitive data (Costello subsequently published a follow-up post detailing how to lock down Salesforce Community sites).

On Monday, KrebsOnSecurity used Akiri’s findings to notify Washington D.C. city administrators that at least five different public DC Health websites were leaking sensitive information. One DC Health Salesforce Community website designed for health professionals seeking to renew licenses with the city leaked documents that included the applicant’s full name, address, Social Security number, date of birth, license number and expiration, and more.

Akiri said he notified the Washington D.C. government in February about his findings, but received no response. Reached by KrebsOnSecurity, interim Chief Information Security Officer Mike Rupert initially said the District had hired a third party to investigate, and that the third party confirmed the District’s IT systems were not vulnerable to data loss from the reported Salesforce configuration issue.

But after being presented with a document including the Social Security number of a health professional in D.C. that was downloaded in real-time from the DC Health public Salesforce website, Rupert acknowledged his team had overlooked some configuration settings.

Washington, D.C. health administrators are still smarting from a data breach earlier this year at the health insurance exchange DC Health Link, which exposed personal information for more than 56,000 users, including many members of Congress.

That data later wound up for sale on a top cybercrime forum. The Associated Press reports that the DC Health Link breach was likewise the result of human error, and said an investigation revealed the cause was a DC Health Link server that was “misconfigured to allow access to the reports on the server without proper authentication.”

Salesforce says the data exposures are not the result of a vulnerability inherent to the Salesforce platform, but they can occur when customers’ access control permissions are misconfigured.

“As previously communicated to all Experience Site and Sites customers, we recommend utilizing the Guest User Access Report Package to assist in reviewing access control permissions for unauthenticated users,” reads a Salesforce advisory from Sept. 2022. “Additionally, we suggest reviewing the following Help article, Best Practices and Considerations When Configuring the Guest User Profile.”

In a written statement, Salesforce said it is actively focused on data security for organizations with guest users, and that it continues to release “robust tools and guidance for our customers,” including:

Guest User Access Report 

Control Which Users Experience Cloud Site Users Can See

Best Practices and Considerations When Configuring the Guest User Profile

“We’ve also continued to update our Guest User security policies, beginning with our Spring ‘21 release with more to come in Summer ‘23,” the statement reads. “Lastly, we continue to proactively communicate with customers to help them understand the capabilities available to them, and how they can best secure their instance of Salesforce to meet their security, contractual, and regulatory obligations.”

Cisco and VMware Release Security Updates to Patch Critical Flaws in their Products

By Ravie Lakshmanan
Cisco and VMware have released security updates to address critical security flaws in their products that could be exploited by malicious actors to execute arbitrary code on affected systems. The most severe of the vulnerabilities is a command injection flaw in Cisco Industrial Network Director (CVE-2023-20036, CVSS score: 9.9), which resides in the web UI component and arises as a result of

3CX Breach Was a Double Supply Chain Compromise

By BrianKrebs

We learned some remarkable new details this week about the recent supply-chain attack on VoIP software provider 3CX. The lengthy, complex intrusion has all the makings of a cyberpunk spy novel: North Korean hackers using legions of fake executive accounts on LinkedIn to lure people into opening malware disguised as a job offer; malware targeting Mac and Linux users working at defense and cryptocurrency firms; and software supply-chain attacks nested within earlier supply chain attacks.

Researchers at ESET say this job offer from a phony HSBC recruiter on LinkedIn was North Korean malware masquerading as a PDF file.

In late March 2023, 3CX disclosed that its desktop applications for both Windows and macOS were compromised with malicious code that gave attackers the ability to download and run code on all machines where the app was installed. 3CX says it has more than 600,000 customers and 12 million users in a broad range of industries, including aerospace, healthcare and hospitality.

3CX hired incident response firm Mandiant, which released a report on Wednesday that said the compromise began in 2022 when a 3CX employee installed a malware-laced software package distributed via an earlier software supply chain compromise that began with a tampered installer for X_TRADER, a software package provided by Trading Technologies.

“This is the first time Mandiant has seen a software supply chain attack lead to another software supply chain attack,” reads the April 20 Mandiant report.

Mandiant found the earliest evidence of compromise uncovered within 3CX’s network was through the VPN using the employee’s corporate credentials, two days after the employee’s personal computer was compromised.

“Eventually, the threat actor was able to compromise both the Windows and macOS build environments,” 3CX said in an April 20 update on their blog.

Mandiant concluded that the 3CX attack was orchestrated by the North Korean state-sponsored hacking group known as Lazarus, a determination that was independently reached earlier by researchers at Kaspersky Lab and Elastic Security.

Mandiant found the compromised 3CX software would download malware that sought out new instructions by consulting encrypted icon files hosted on GitHub. The decrypted icon files revealed the location of the malware’s control server, which was then queried for a third stage of the malware compromise — a password stealing program dubbed ICONICSTEALER.

The double supply chain compromise that led to malware being pushed out to some 3CX customers. Image: Mandiant.

Meanwhile, the security firm ESET today published research showing remarkable similarities between the malware used in the 3CX supply chain attack and Linux-based malware that was recently deployed via fake job offers from phony executive profiles on LinkedIn. The researchers said this was the first time Lazarus had been spotted deploying malware aimed at Linux users.

As reported in a series last summer here, LinkedIn has been inundated this past year by fake executive profiles for people supposedly employed at a range of technology, defense, energy and financial companies. In many cases, the phony profiles spoofed chief information security officers at major corporations, and some attracted quite a few connections before their accounts were terminated.

Mandiant, Proofpoint and other experts say Lazarus has long used these bogus LinkedIn profiles to lure targets into opening a malware-laced document that is often disguised as a job offer. This ongoing North Korean espionage campaign using LinkedIn was first documented in August 2020 by ClearSky Security, which said the Lazarus group operates dozens of researchers and intelligence personnel to maintain the campaign globally.

Microsoft Corp., which owns LinkedIn, said in September 2022 that it had detected a wide range of social engineering campaigns using a proliferation of phony LinkedIn accounts. Microsoft said the accounts were used to impersonate recruiters at technology, defense and media companies, and to entice people into opening a malicious file. Microsoft found the attackers often disguised their malware as legitimate open-source software like Sumatra PDF and the SSH client Putty.

Microsoft attributed those attacks to North Korea’s Lazarus hacking group, although they’ve traditionally referred to this group as “ZINC“. That is, until earlier this month, when Redmond completely revamped the way it names threat groups; Microsoft now references ZINC as “Diamond Sleet.”

The ESET researchers said they found a new fake job lure tied to an ongoing Lazarus campaign on LinkedIn designed to compromise Linux operating systems. The malware was found inside of a document that offered an employment contract at the multinational bank HSBC.

“A few weeks ago, a native Linux payload was found on VirusTotal with an HSBC-themed PDF lure,” wrote ESET researchers Peter Kalnai and Marc-Etienne M.Leveille. “This completes Lazarus’s ability to target all major desktop operating systems. In this case, we were able to reconstruct the full chain, from the ZIP file that delivers a fake HSBC job offer as a decoy, up until the final payload.”

ESET said the malicious PDF file used in the scheme appeared to have a file extension of “.pdf,” but that this was a ruse. ESET discovered that the dot in the filename wasn’t a normal period but instead a Unicode character (U+2024) representing a “leader dot,” which is often used in tables of contents to connect section headings with the page numbers on which those sections begin.

“The use of the leader dot in the filename was probably an attempt to trick the file manager into treating the file as an executable instead of a PDF,” the researchers continued. “This could cause the file to run when double-clicked instead of opening it with a PDF viewer.”

ESET said anyone who opened the file would see a decoy PDF with a job offer from HSBC, but in the background the executable file would download additional malware payloads. The ESET team also found the malware was able to manipulate the program icon displayed by the malicious PDF, possibly because fiddling with the file extension could cause the user’s system to display a blank icon for the malware lure.

Kim Zetter, a veteran Wired.com reporter and now independent security journalist, interviewed Mandiant researchers who said they expect “many more victims” will be discovered among the customers of Trading Technologies and 3CX now that news of the compromised software programs is public.

“Mandiant informed Trading Technologies on April 11 that its X_Trader software had been compromised, but the software maker says it has not had time to investigate and verify Mandiant’s assertions,” Zetter wrote in her Zero Day newsletter on Substack. For now, it remains unclear whether the compromised X_Trader software was downloaded by people at other software firms.

If there’s a silver lining here, the X_Trader software had been decommissioned in April 2020 — two years before the hackers allegedly embedded malware in it.

“The company hadn’t released new versions of the software since that time and had stopped providing support for the product, making it a less-than-ideal vector for the North Korean hackers to infect customers,” Zetter wrote.

Fortra Sheds Light on GoAnywhere MFT Zero-Day Exploit Used in Ransomware Attacks

By Ravie Lakshmanan
Fortra, the company behind Cobalt Strike, shed light on a zero-day remote code execution (RCE) vulnerability in its GoAnywhere MFT tool that has come under active exploitation by ransomware actors to steal sensitive data. The high-severity flaw, tracked as CVE-2023-0669 (CVSS score: 7.2), concerns a case of pre-authenticated command injection that could be abused to achieve code execution. The

Daggerfly Cyberattack Campaign Hits African Telecom Services Providers

By Ravie Lakshmanan
Telecommunication services providers in Africa are the target of a new campaign orchestrated by a China-linked threat actor at least since November 2022. The intrusions have been pinned on a hacking crew tracked by Symantec as Daggerfly, and which is also monitored by the broader cybersecurity community as Bronze Highland and Evasive Panda. The campaign makes use of "previously unseen plugins

U.S. and U.K. Warn of Russian Hackers Exploiting Cisco Router Flaws for Espionage

By Ravie Lakshmanan
U.K. and U.S. cybersecurity and intelligence agencies have warned of Russian nation-state actors exploiting now-patched flaws in networking equipment from Cisco to conduct reconnaissance and deploy malware against select targets. The intrusions, per the authorities, took place in 2021 and targeted a small number of entities in Europe, U.S. government institutions, and about 250 Ukrainian victims

Giving a Face to the Malware Proxy Service ‘Faceless’

By BrianKrebs

For the past seven years, a malware-based proxy service known as “Faceless” has sold anonymity to countless cybercriminals. For less than a dollar per day, Faceless customers can route their malicious traffic through tens of thousands of compromised systems advertised on the service. In this post we’ll examine clues left behind over the past decade by the proprietor of Faceless, including some that may help put a face to the name.

The proxy lookup page inside the malware-based anonymity service Faceless. Image: spur.us.

Riley Kilmer is co-founder of Spur.us, a company that tracks thousands of VPN and proxy networks, and helps customers identify traffic coming through these anonymity services. Kilmer said Faceless has emerged as one of the underground’s most reliable malware-based proxy services, mainly because its proxy network has traditionally included a great many compromised “Internet of Things” devices — such as media sharing servers — that are seldom included on malware or spam block lists.

Kilmer said when Spur first started looking into Faceless, they noticed almost every Internet address that Faceless advertised for rent also showed up in the IoT search engine Shodan.io as a media sharing device on a local network that was somehow exposed to the Internet.

“We could reliably look up the [fingerprint] for these media sharing devices in Shodan and find those same systems for sale on Faceless,” Kilmer said.

In January 2023, the Faceless service website said it was willing to pay for information about previously undocumented security vulnerabilities in IoT devices. Those with IoT zero-days could expect payment if their exploit involved at least 5,000 systems that could be identified through Shodan.

Notices posted for Faceless users, advertising an email flooding service and soliciting zero-day vulnerabilities in Internet of Things devices.

Recently, Faceless has shown ambitions beyond just selling access to poorly-secured IoT devices. In February, Faceless re-launched a service that lets users drop an email bomb on someone — causing the target’s inbox to be filled with tens of thousands of junk messages.

And in March 2023, Faceless started marketing a service for looking up Social Security Numbers (SSNs) that claims to provide access to “the largest SSN database on the market with a very high hit rate.”

Kilmer said Faceless wants to become a one-stop-fraud-shop for cybercriminals who are seeking stolen or synthetic identities from which to transact online, and a temporary proxy that is geographically close to the identity being sold. Faceless currently sells this bundled product for $9 — $8 for the identity and $1 for the proxy.

“They’re trying to be this one-stop shop for anonymity and personas,” Kilmer said. “The service basically says ‘here’s an SSN and proxy connection that should correspond to that user’s location and make sense to different websites.'”

MRMURZA

Faceless is a project from MrMurza, a particularly talkative member of more than a dozen Russian-language cybercrime forums over the past decade. According to cyber intelligence firm Flashpoint, MrMurza has been active in the Russian underground since at least September 2012. Flashpoint said MrMurza appears to be extensively involved in botnet activity and “drops” — fraudulent bank accounts created using stolen identity data that are often used in money laundering and cash-out schemes.

Faceless grew out of a popular anonymity service called iSocks, which was launched in 2014 and advertised on multiple Russian crime forums as a proxy service that customers could use to route their malicious Web traffic through compromised computers.

Flashpoint says that in the months before iSocks went online, MrMurza posted on the Russian language crime forum Verified asking for a serious partner to assist in opening a proxy service, noting they had a botnet that was powered by malware that collected proxies with a 70 percent infection rate.

MrMurza’s Faceless advertised on the Russian-language cybercrime forum ProCrd. Image: Darkbeast/Ke-la.com.

In September 2016, MrMurza sent a message to all iSocks users saying the service would soon be phased out in favor of Faceless, and that existing iSocks users could register at Faceless for free if they did so quickly — before Faceless began charging new users registration fees between $50 and $100.

Verified and other Russian language crime forums where MrMurza had a presence have been hacked over the years, with contact details and private messages leaked online. In a 2014 private message to the administrator of Verified explaining his bona fides, MrMurza said he received years of positive feedback as a seller of stolen Italian credit cards and a vendor of drops services.

MrMurza told the Verified admin that he used the nickname AccessApproved on multiple other forums over the years. MrMurza also told the admin that his account number at the now-defunct virtual currency Liberty Reserve was U1018928.

According to cyber intelligence firm Intel 471, the user AccessApproved joined the Russian crime forum Zloy in Jan. 2012, from an Internet address in Magnitogorsk, RU. In a 2012 private message where AccessApproved was arguing with another cybercriminal over a deal gone bad, AccessApproved asked to be paid at the Liberty Reserve address U1018928.

In 2013, U.S. federal investigators seized Liberty Reserve and charged its founders with facilitating billions of dollars in money laundering tied to cybercrime. The Liberty Reserve case was prosecuted out of the Southern District of New York, which in 2016 published a list of account information (PDF) tied to thousands of Liberty Reserve addresses the government asserts were involved in money laundering.

That document indicates the Liberty Reserve account claimed by MrMurza/AccessApproved — U1018928 — was assigned in 2011 to a “Vadim Panov” who used the email address lesstroy@mgn.ru.

PANOV

Constella Intelligence, a threat intelligence firm that tracks breached databases, says lesstroy@mgn.ru was used for an account “Hackerok” at the accounting service klerk.ru that was created from an Internet address in Magnitogorsk. The password chosen by this user was “1232.”

In addition to selling access to hacked computers and bank accounts, both MrMurza and AccessApproved ran side hustles on the crime forums selling clothing from popular retailers that refused to ship directly to Russia.

On one cybercrime forum where AccessApproved had clothing customers, denizens of the forum created a lengthy discussion thread to help users identify incoming emails associated with various reshipping services advertised within their community. Reshippers tend to rely on a large number of people in the United States and Europe helping to forward packages overseas, but in many cases the notifications about purchases and shipping details would be forwarded to reshipping service customers from a consistent email account.

That thread said AccessApproved’s clothing reshipping service forwarded confirmation emails from the address panov-v@mail.ru. This address is associated with accounts on two Russian cybercrime forums registered from Magnitogorsk in 2010 using the handle “Omega^gg4u.”

This Omega^gg4u identity sold software that can rapidly check the validity of large batches of stolen credit cards. Interestingly, both Omega^gg4u and AccessApproved also had another niche: Reselling heavily controlled substances — such as human growth hormone and anabolic steroids — from chemical suppliers in China.

A search in Constella on the address panov-v@mail.ru and many variations on that address shows these accounts cycled through the same passwords, including 055752403k, asus666, 01091987h, and the relatively weak password 1232 (recall that 1232 was picked by whoever registered the lesstroy@mgn.ru account at Klerk.ru).

Constella says the email address asus666@yandex.ru relied on the passwords asus666 and 01091987h. The 01091987h password also was used by asus666@mail.ru, which also favored the password 24587256.

Constella further reports that whoever owned the much shorter address asus@mail.ru also used the password 24587256. In addition, it found the password 2318922479 was tied to both asus666@mail.ru and asus@mail.ru.

The email addresses asus@mail.ru, asus2504@mail.ru, and zaxar2504@rambler.ru were all used to register Vkontakte social media accounts for a Denis ***@VIP*** Pankov. There are a number of other Vkontakte accounts registered to asus@mail.ru and many variations of this address under a different name. But none of those other profiles appear tied to real-life identities.

A mind map simplifying the research detailed here.

PANKOV

Constella’s data shows the email addresses asus2504@mail.ru and zaxar2504@rambler.ru used the rather unique password denis250485, which was also used by the email address denispankov@yandex.ru and almost a dozen variations at other Russian-language email providers.

Russian vehicle registration records from 2016 show the email address denispankov@yandex.ru belongs to Denis Viktorovich Pankov, born on April 25, 1985. That explains the “250485” portion of Pankov’s favored password. The registration records further indicate that in 2016 Pankov’s vehicle was registered in a suburb of Moscow.

Russian incorporation records show that denispankov@yandex.com is tied to IP Pankov Denis Viktorovich, a now-defunct transportation company in the Volograd Oblast, a region in southern Russia that shares a long border with western Kazazkhstan.

More recent records for IP Pankov Denis Viktorovich show a microenterprise with this name in Omsk that described its main activity as “retail sale by mail or via the Internet.” Russian corporate records indicate this entity was liquidated in 2021.

A reverse password search on “denis250485” via Constella shows this password was used by more than 75 email addresses, most of which are some variation of gaihnik@mail.ru — such as gaihnik25@mail.ru, or gaihnik2504@rambler.ru.

In 2012, someone posted answers to a questionnaire on behalf of Denis Viktorovich Pankov to a Russian-language discussion forum on Chinese crested dog breeds. The message said Pankov was seeking a puppy of a specific breed and was a resident of Krasnogorsk, a city that is adjacent to the northwestern boundary of Moscow.

The message said Pankov was a then 27-year-old manager in an advertising company, and could be reached at the email address gaihnik@mail.ru.

GAIHNIK

Constella Intelligence shows gaihnik@mail.ru registered at the now-defunct email marketing service Smart Responder from an address in Gagarin, which is about 115 miles west of Moscow.

Back in 2015, the user Gaihnik25 was banned from the online game World of Tanks for violating the game’s terms that prohibit “bot farming,” or the automated use of large numbers of player accounts to win some advantage that is usually related to cashing out game accounts or inventory.

For the past few years, someone using the nickname Gaihnik25 has been posting messages to the Russian-language hacking forum Gerki[.]pw, on discussion threads regarding software designed to “brute force” or mass-check online accounts for weak or compromised passwords.

A new member of the Russian hacking forum Nohide[.]Space using the handle Gaihnik has been commenting recently about proxy services, credential checking software, and the sale of hacked mailing lists. Gaihnik’s first post on the forum concerned private software for checking World of Tanks accounts.

The address gaihnik@mail.ru shows how so many email addresses tied to Pankov were also connected to apparently misleading identities on Vkontakte and elsewhere. Constella found this address was tied to a Vkontakte account for a Dmitriy Zakarov.

Microsoft’s Bing search engine says gaihnik@mail.ru belongs to 37-year-old Denis Pankov, yet clicking the Mail.ru profile for that user brings up a profile for a much older man by the name Gavril Zakarov. However, when you log in to a Mail.ru account and view that profile, it shows that most of the account’s profile photos are of a much younger man.

Many of those same photos show up in an online dating profile at dating.ru for the user Gaihnik, a.k.a “Denchik,” who says he is a 37-year-old Taurus from Gagarin who enjoys going for walks in nature, staying up late, and being on the Internet.

Mr. Pankov did not respond to multiple requests for comment sent to all of the email addresses mentioned in this story. However, some of those addresses produced detailed error responses; Mail.ru reported that the users panov-v@mail.ru, asus666@mail.ru, and asus2504@mail.ru were terminated, and that gaihnik25@mail.ru is now disabled.

Messages sent to many other email addresses connected via passwords to Pankov and using some variation of asus####@mail.ru also returned similar account termination messages.

LockBit Ransomware Now Targeting Apple macOS Devices

By Ravie Lakshmanan
Threat actors behind the LockBit ransomware operation have developed new artifacts that can encrypt files on devices running Apple's macOS operating system. The development, which was reported by the MalwareHunterTeam over the weekend, appears to be the first time a big-game ransomware crew has created a macOS-based payload. Additional samples identified by vx-underground show that the macOS

FIN7 and Ex-Conti Cybercrime Gangs Join Forces in Domino Malware Attacks

By Ravie Lakshmanan
A new strain of malware developed by threat actors likely affiliated with the FIN7 cybercrime group has been put to use by the members of the now-defunct Conti ransomware gang, indicating collaboration between the two crews. The malware, dubbed Domino, is primarily designed to facilitate follow-on exploitation on compromised systems, including delivering a lesser-known information stealer that

Why is ‘Juice Jacking’ Suddenly Back in the News?

By BrianKrebs

KrebsOnSecurity received a nice bump in traffic this week thanks to tweets from the Federal Bureau of Investigation (FBI) and the Federal Communications Commission (FCC) about “juice jacking,” a term first coined here in 2011 to describe a potential threat of data theft when one plugs their mobile device into a public charging kiosk. It remains unclear what may have prompted the alerts, but the good news is that there are some fairly basic things you can do to avoid having to worry about juice jacking.

On April 6, 2023, the FBI’s Denver office issued a warning about juice jacking in a tweet.

“Avoid using free charging stations in airports, hotels or shopping centers,” the FBI’s Denver office warned. “Bad actors have figured out ways to use public USB ports to introduce malware and monitoring software onto devices. Carry your own charger and USB cord and use an electrical outlet instead.”

Five days later, the Federal Communications Commission (FCC) issued a similar warning. “Think twice before using public charging stations,” the FCC tweeted. “Hackers could be waiting to gain access to your personal information by installing malware and monitoring software to your devices. This scam is referred to as juice jacking.”

The FCC tweet also provided a link to the agency’s awareness page on juice jacking, which was originally published in advance of the Thanksgiving Holiday in 2019 but was updated in 2021 and then again shortly after the FBI’s tweet was picked up by the news media. The alerts were so broadly and breathlessly covered in the press that a mention of juice jacking even made it into this week’s Late Late Show with James Corden.

The term juice jacking crept into the collective paranoia of gadget geeks in the summer of 2011, thanks to the headline for a story here about researchers at the DEFCON hacker convention in Vegas who’d set up a mobile charging station designed to educate the unwary to the reality that many mobile devices connected to a computer would sync their data by default.

Since then, Apple, Google and other mobile device makers have changed the way their hardware and software works so that their devices no longer automatically sync data when one plugs them into a computer with a USB charging cable. Instead, users are presented with a prompt asking if they wish to trust a connected computer before any data transfer can take place.

On the other hand, the technology needed to conduct a sneaky juice jacking attack has become far more miniaturized, accessible and cheap. And there are now several products anyone can buy that are custom-built to enable juice jacking attacks.

Probably the best known example is the OMG cable, a $180 hacking device made for professional penetration testers that looks more or less like an Apple or generic USB charging cable. But inside the OMG cable is a tiny memory chip and a Wi-Fi transmitter that creates a Wi-Fi hotspot, to which the attacker can remotely connect using a smartphone app and run commands on the device.

The $180 “OMG cable.” Image: hak5.org.

Brian Markus is co-founder of Aries Security, and one of the researchers who originally showcased the threat from juice jacking at the 2011 DEFCON. Markus said he isn’t aware of any public accounts of juice jacking kiosks being found in the wild, and said he’s unsure what prompted the recent FBI alert.

But Markus said juice jacking is still a risk because it is far easier and cheaper these days for would-be attackers to source and build the necessary equipment.

“Since then, the technology and components have become much smaller and very easy to build, which puts this in the hands of less sophisticated threat actors,” Markus said. “Also, you can now buy all this stuff over the counter. I think the risk is possibly higher now than it was a decade ago, because a much larger population of people can now pull this off easily.”

How seriously should we take the recent FBI warning? An investigation by the myth-busting site Snopes suggests the FBI tweet was just a public service announcement based on a dated advisory. Snopes reached out to both the FBI and the FCC to request data about how widespread the threat of juice jacking is in 2023.

“The FBI replied that its tweet was a ‘standard PSA-type post’ that stemmed from the FCC warning,” Snopes reported. “An FCC spokesperson told Snopes that the commission wanted to make sure that their advisory on “juice-jacking,” first issued in 2019 and later updated in 2021, was up-to-date so as to ensure ‘the consumers have the most up-to-date information.’ The official, who requested anonymity, added that they had not seen any rise in instances of consumer complaints about juice-jacking.”

What can you do to avoid juice jacking? Bring your own gear. A general rule of thumb in security is that if an adversary has physical access to your device, you can no longer trust the security or integrity of that device. This also goes for things that plug into your devices.

Juice jacking isn’t possible if a device is charged via a trusted AC adapter, battery backup device, or through a USB cable with only power wires and no data wires present. If you lack these things in a bind and still need to use a public charging kiosk or random computer, at least power your device off before plugging it in.

WhatsApp Introduces New Device Verification Feature to Prevent Account Takeover Attacks

By Ravie Lakshmanan
Popular instant messaging app WhatsApp on Thursday announced a new account verification feature that ensures that malware running on a user's mobile device doesn't impact their account. "Mobile device malware is one of the biggest threats to people's privacy and security today because it can take advantage of your phone without your permission and use your WhatsApp to send unwanted messages,"

Leaked Pentagon Documents May Herald a New Era of Revelations

By Lily Hay Newman
The bizarre release of sensitive US government materials soon after their creation signals a potential shift to near-real-time unauthorized disclosures.

Microsoft (& Apple) Patch Tuesday, April 2023 Edition

By BrianKrebs

Microsoft today released software updates to plug 100 security holes in its Windows operating systems and other software, including a zero-day vulnerability that is already being used in active attacks. Not to be outdone, Apple has released a set of important updates addressing two zero-day vulnerabilities that are being used to attack iPhones, iPads and Macs.

On April 7, Apple issued emergency security updates to fix two weaknesses that are being actively exploited, including CVE-2023-28206, which can be exploited by apps to seize control over a device. CVE-2023-28205 can be used by a malicious or hacked website to install code.

Both vulnerabilities are addressed in iOS/iPadOS 16.4.1, iOS 15.7.5, and macOS 12.6.5 and 11.7.6. If you use Apple devices and you don’t have automatic updates enabled (they are on by default), you should probably take care of that soon as detailed instructions on how to attack CVE-2023-28206 are now public.

Microsoft’s bevy of 100 security updates released today include CVE-2023-28252, which is a weakness in Windows that Redmond says is under active attack. The vulnerability is in the Windows Common Log System File System (CLFS) driver, a core Windows component that was the source of attacks targeting a different zero-day vulnerability in February 2023.

“If it seems familiar, that’s because there was a similar 0-day patched in the same component just two months ago,” said Dustin Childs at the Trend Micro Zero Day Initiative. “To me, that implies the original fix was insufficient and attackers have found a method to bypass that fix. As in February, there is no information about how widespread these attacks may be. This type of exploit is typically paired with a code execution bug to spread malware or ransomware.”

According to the security firm Qualys, this vulnerability has been leveraged by cyber criminals to deploy Nokoyawa ransomware.

“This is a relatively new strain for which there is some open source intel to suggest that it is possibly related to Hive ransomware – one of the most notable ransomware families of 2021 and linked to breaches of over 300+ organizations in a matter of just a few months,” said Bharat Jogi, director of vulnerability and threat research at Qualys.

Jogi said while it is still unclear which exact threat actor is targeting CVE-2023-28252, targets have been observed in South and North America, regions across Asia and at organizations in the Middle East.

Satnam Narang at Tenable notes that CVE-2023-28252 is also the second CLFS zero-day disclosed to Microsoft by researchers from Mandiant and DBAPPSecurity (CVE-2022-37969), though it is unclear if both of these discoveries are related to the same attacker.

Seven of the 100 vulnerabilities Microsoft fixed today are rated “Critical,” meaning they can be used to install malicious code with no help from the user. Ninety of the flaws earned Redmond’s slightly less-dire “Important” label, which refers to weaknesses that can be used to undermine the security of the system but which may require some amount of user interaction.

Narang said Microsoft has rated nearly 90% of this month’s vulnerabilities as “Exploitation Less Likely,” while just 9.3% of flaws were rated as “Exploitation More Likely.” Kevin Breen at Immersive Labs zeroed in on several notable flaws in that 9.3%, including CVE-2023-28231, a remote code execution vulnerability in a core Windows network process (DHCP) with a CVSS score of 8.8.

“‘Exploitation more likely’ means it’s not being actively exploited but adversaries may look to try and weaponize this one,” Breen said. “Micorosft does note that successful exploitation requires an attacker to have already gained initial access to the network. This could be via social engineering, spear phishing attacks, or exploitation of other services.”

Breen also called attention to CVE-2023-28220 and CVE-2023-28219 — a pair of remote code execution vulnerabilities affecting Windows Remote Access Servers (RAS) that also earned Microsoft’s “exploitation more likely” label.

“An attacker can exploit this vulnerability by sending a specially crafted connection request to a RAS server, which could lead to remote code execution,” Breen said. While not standard in all organizations, RAS servers typically have direct access from the Internet where most users and services are connected. This makes it extremely enticing for attackers as they don’t need to socially engineer their way into an organization. They can simply scan the internet for RAS servers and automate the exploitation of vulnerable devices.”

For more details 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.

Apple Releases Updates to Address Zero-Day Flaws in iOS, iPadOS, macOS, and Safari

By Ravie Lakshmanan
Apple on Friday released security updates for iOS, iPadOS, macOS, and Safari web browser to address a pair of zero-day flaws that are being exploited in the wild. The two vulnerabilities are as follows - CVE-2023-28205 - A use after free issue in WebKit that could lead to arbitrary code execution when processing specially crafted web content. CVE-2023-28206 - An out-of-bounds write issue in

Researchers Discover Critical Remote Code Execution Flaw in vm2 Sandbox Library

By Ravie Lakshmanan
The maintainers of the vm2 JavaScript sandbox module have shipped a patch to address a critical flaw that could be abused to break out of security boundaries and execute arbitrary shellcode. The flaw, which affects all versions, including and prior to 3.9.14, was reported by researchers from South Korea-based KAIST WSP Lab on April 6, 2023, prompting vm2 to release a fix with version 3.9.15 on

Microsoft Takes Legal Action to Disrupt Cybercriminals' Illegal Use of Cobalt Strike Tool

By Ravie Lakshmanan
Microsoft said it teamed up with Fortra and Health Information Sharing and Analysis Center (Health-ISAC) to tackle the abuse of Cobalt Strike by cybercriminals to distribute malware, including ransomware. To that end, the tech giant's Digital Crimes Unit (DCU) revealed that it secured a court order in the U.S. to "remove illegal, legacy copies of Cobalt Strike so they can no longer be used by

Are Source Code Leaks the New Threat Software vendors Should Care About?

By The Hacker News
Less than a month ago, Twitter indirectly acknowledged that some of its source code had been leaked on the code-sharing platform GitHub by sending a copyright infringement notice to take down the incriminated repository. The latter is now inaccessible, but according to the media, it was accessible to the public for several months. A user going by the name FreeSpeechEnthousiast committed

CISA Warns of Critical ICS Flaws in Hitachi, mySCADA, ICL, and Nexx Products

By Ravie Lakshmanan
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has published eight Industrial Control Systems (ICS) advisories warning of critical flaws affecting products from Hitachi Energy, mySCADA Technologies, Industrial Control Links, and Nexx. Topping the list is CVE-2022-3682 (CVSS score: 9.9), impacting Hitachi Energy's MicroSCADA System Data Manager SDM600 that could allow an

Typhon Reborn Stealer Malware Resurfaces with Advanced Evasion Techniques

By Ravie Lakshmanan
The threat actor behind the information-stealing malware known as Typhon Reborn has resurfaced with an updated version (V2) that packs in improved capabilities to evade detection and resist analysis. The new version is offered for sale on the criminal underground for $59 per month, $360 per year, or alternatively, for $540 for a lifetime subscription. "The stealer can harvest and exfiltrate

FBI Seizes Bot Shop ‘Genesis Market’ Amid Arrests Targeting Operators, Suppliers

By BrianKrebs

Several domain names tied to Genesis Market, a bustling cybercrime store that sold access to passwords and other data stolen from millions of computers infected with malicious software, were seized by the Federal Bureau of Investigation (FBI) today. The domain seizures coincided with more than a hundred arrests in the United States and abroad targeting those who allegedly operated the service, as well as suppliers who continuously fed Genesis Market with freshly-stolen data.

Several websites tied to the cybercrime store Genesis Market had their homepages changed today to this seizure notice.

Active since 2018, Genesis Market’s slogan was, “Our store sells bots with logs, cookies, and their real fingerprints.” Customers could search for infected systems with a variety of options, including by Internet address or by specific domain names associated with stolen credentials.

But earlier today, multiple domains associated with Genesis had their homepages replaced with a seizure notice from the FBI, which said the domains were seized pursuant to a warrant issued by the U.S. District Court for the Eastern District of Wisconsin.

The U.S. Attorney’s Office for the Eastern District of Wisconsin did not respond to requests for comment. The FBI declined to comment.

Update, April 5, 11:40 a.m. ET: The U.S. Department of Justice just released a statement on its investigation into Genesis Market. In a press briefing this morning, FBI and DOJ officials said the international law enforcement investigation involved 14 countries and resulted in 400 law enforcement actions, including 119 arrests and 208 searches and interviews worldwide. The FBI confirmed that some American suspects are among those arrested, although officials declined to share more details on the arrests.

The DOJ said investigators were able to access the user database for Genesis Market, and found the invite-only service had more than 59,000 registered users. The database contained the purchase and activity history on all users, which the feds say helped them uncover the true identities of many users.

Original story: But sources close to the investigation tell KrebsOnSecurity that law enforcement agencies in the United States, Canada and across Europe are currently serving arrest warrants on dozens of individuals thought to support Genesis, either by maintaining the site or selling the service bot logs from infected systems.

The seizure notice includes the seals of law enforcement entities from several countries, including Australia, Canada, Denmark, Germany, the Netherlands, Spain, Sweden and the United Kingdom.

When Genesis customers purchase a bot, they’re purchasing the ability to have all of the victim’s authentication cookies loaded into their browser, so that online accounts belonging to that victim can be accessed without the need of a password, and in some cases without multi-factor authentication.

“You can buy a bot with a real fingerprint, access to e-mail, social networks, bank accounts, payment systems!,” a cybercrime forum ad for Genesis enthused. “You also get all previous digital life (history) of the bot – most services won’t even ask for login and password and identify you as their returning customer. Purchasing a bot kit with the fingerprint, cookies and accesses, you become the unique user of all his or her services and other web-sites. The other use of our kit of real fingerprints is to cover-up the traces of your real internet activity.”

The Genesis Store had more than 450,000 bots for sale as of Mar. 21, 2023. Image: KrebsOnSecurity.

The pricing for Genesis bots ranged quite a bit, but in general bots with large amounts of passwords and authentication cookies — or those with access to specific financial websites such as PayPal and Coinbase — tended to fetch far higher prices.

New York based cyber intelligence firm Flashpoint says that in addition to containing a large number of resources, the most expensive bots overwhelmingly seem to have access to accounts that are easy to monetize.

“The high incidence of Google and Facebook is expected, as they are such widely used platforms,” Flashpoint noted in an analysis of Genesis Market, observing that all ten of the ten most expensive bots at the time included Coinbase credentials.

Genesis Market has introduced a number of cybercriminal innovations throughout its existence. Probably the best example is Genesis Security, a custom Web browser plugin which can load a Genesis bot profile so that the browser mimics virtually every important aspect of the victim’s device, from screen size and refresh rate to the unique user agent string tied to the victim’s web browser.

Flashpoint said the administrators of Genesis Market claim they are a team of specialists with “extensive experience in the field of systems metrics.” They say they developed the Genesis Security software by analyzing the top forty-seven browser fingerprinting and tracking systems, as well as those utilized by 283 different banking and payment systems.

Cybersecurity experts say Genesis and a handful of other bot shops are also popular among cybercriminals who work to identify and purchase bots inside corporate networks, and then turn around and resell that access to ransomware gangs.

Michael Debolt, chief intelligence officer for Intel 471, said so-called “network access brokers” will scour automated bot shops for high value targets, and then resell them for a bigger profit.

“From ‘used’ or ‘processed’ logs — it is actually quite common for the same log to be used by multiple different actors who are all using it for different purposes – for instance, some actors are only interested in crypto wallet or banking credentials so they bypass credentials that network access brokers are interested in,” Debolt said. “These network access brokers buy these ‘used’ logs for very cheap (or sometimes for free) and search for big fish targets from there.”

In June 2021, hackers who broke into and stole a wealth of source code and game data from the computer gaming giant EA told Motherboard they gained access by purchasing a $10 bot from Genesis Market that let them log into a company Slack account.

One feature of Genesis that sets it apart from other bot shops is that customers can retain access to infected systems in real-time, so that if the rightful owner of an infected system creates a new account online, those new credentials will get stolen and displayed in the web-based panel of the Genesis customer who purchased that bot.

“While some infostealers are designed to remove themselves after execution, others create persistent access,” reads a March 2023 report from cybersecurity firm SpyCloud. “That means bad actors have access to the current data for as long as the device remains infected, even if the user changes passwords.”

SpyCloud says Genesis even advertises its commitment to keep the stolen data and the compromised systems’ fingerprints up to date.

“According to our research, Genesis Market had more than 430,000 stolen identities for sale as of early last year – and there are many other marketplaces like this one,” the SpyCloud report concludes.

It appears this week’s action targeted only the clear web versions of Genesis Market, and that the store is still operating on a dark web address that is only reachable through the Tor network. In today’s press briefing, DOJ officials said their investigation is ongoing, and that actions taken already have allowed them to disrupt Genesis in a way that may not be readily apparent.

In a blog post today, security firm Trellix said it was approached by the Dutch Police, who were seeking assistance with the analysis and detection of the malicious files linked to Genesis Market.

“The primary goal was to render the market’s scripts and binaries useless,” Trellix researchers wrote.

As described in the Trellix blog, a major part of this effort against Genesis Market involves targeting its suppliers, or cybercriminals who are constantly feeding the market with freshly-stolen bot data. The company says Genesis partnered with multiple cybercriminals responsible for selling, distributing and maintaining different strains of infostealer malware, including malware families such as Raccoon Stealer.

“Over the years, Genesis Market has worked with a large variety of malware families to infect victims, where their info stealing scripts were used to steal information, which was used to populate the Genesis Market store,” the Trellix researchers continued. “It comes as no surprise that the malware families linked to Genesis Market belong to the usual suspects of common info-stealers, like AZORult, Raccoon, Redline and DanaBot. In February 2023, Genesis Market started to actively recruit sellers. We believe with a moderate level of confidence that this was done to keep up with the growing demand of their users.”

How does one’s computer become a bot in one of these fraud networks? Infostealers are continuously mass-deployed via several methods, including malicious attachments in email; manipulating search engine results for popular software titles; and malware that is secretly attached to legitimate software made available for download via software crack websites and file-sharing networks.

John Fokker, head of threat intelligence at Trellix, told KrebsOnSecurity that the Dutch Police tracked down several people whose data was for sale on Genesis Market, and discovered that the victims had installed infostealer malware that was bundled with pirated software.

The Dutch Police have stood up a website that lets visitors check whether their information was part of the stolen data for sale on Genesis. Troy Hunt‘s Have I Been Pwned website is also offering a lookup service based on data seized by the FBI.

Ruben van Well, team leader of the Dutch police cybercrime unit in Rotterdam, said more than 800,000 visitors have already checked their website, and that more than 2,000 of those visitors were alerted to active infostealer malware infections.

Van Well said Dutch authorities executed at least 17 arrests in connection with the investigation so far. He added that while the cybercriminals running Genesis Market promised their customers that user account security was a high priority, the service stored all of its data in plain text.

“If users would say can you please delete my account, they’d do it, but we can still see in the logs that they asked for that,” van Well said. “Genesis Market was not very good at protecting the security of its users, which made a mess for them but it’s been great for law enforcement.”

According to the Dutch Police, Microsoft this morning shipped an update to supported Windows computers that can remove infections from infostealer malware families associated with Genesis Market.

The Dutch computer security firm Computest worked with Trellix and the Dutch Police to analyze the Genesis Market malware. Their highly technical deep-dive is available here.

This is a developing story. Any updates will be added with notice and timestamp here.

Apr. 5, 11:00 am ET: Added statement from Justice Department, and background from a press briefing this morning.

Apr. 5, 12:24 pm ET: Added perspective from Trellix, and context from DOJ officials.

Apr. 5, 1:27 pm ET: Added links to lookup services by the Dutch Police and Troy Hunt.

A Serial Tech Investment Scammer Takes Up Coding?

By BrianKrebs

John Clifton Davies, a 60-year-old con man from the United Kingdom who fled the country in 2015 before being sentenced to 12 years in prison for fraud, has enjoyed a successful life abroad swindling technology startups by pretending to be a billionaire investor. Davies’ newest invention appears to be “CodesToYou,” which purports to be a “full cycle software development company” based in the U.K.

The scam artist John Bernard a.k.a. Alan John Mykailov (left) in a recent Zoom call, and a mugshot of John Clifton Davies from nearly a decade earlier.

Several articles here have delved into the history of John Bernard, the pseudonym used by a fake billionaire technology investor who tricked dozens of startups into giving him tens of millions of dollars.

John Bernard’s real name is John Clifton Davies, a convicted fraudster from the United Kingdom who is currently a fugitive from justice. For several years until reinventing himself again quite recently, Bernard pretended to be a billionaire Swiss investor who made his fortunes in the dot-com boom 20 years ago.

The Private Office of John Bernard” let it be known to investment brokers that he had tens of millions of dollars to invest in tech startups, and he attracted a stream of new victims by offering extraordinarily generous finder’s fees to brokers who helped him secure new clients. But those brokers would eventually get stiffed because Bernard’s company would never consummate a deal.

John Bernard’s former website, where he pretended to be a billionaire tech investor.

Bernard would promise to invest millions in tech startups, and then insist that companies pay tens of thousands of dollars worth of due diligence fees up front. However, the due diligence company he insisted on using — another Swiss firm called The Inside Knowledge GmbH — also was secretly owned by Bernard, who would invariably pull out of the deal after receiving the due diligence money.

A variety of clues suggest Davies has recently adopted at least one other identity — Alan John Mykhailov — who is listed as chairman of a British concern called CodesToYou LTD, incorporated in May 2022. The CodesToYou website says the company employs talented coders in several countries, and that its programmers offer “your ultimate balance between speed, cost and quality.”

The team from CodesToYou.

In response to questions from KrebsOnSecurity, CodesToYou’s marketing manager — who gave their name only as “Zhena” — said the company was not affiliated with any John Bernard or John Clifton Davies, and maintained that CodesToYou is a legitimate enterprise.

But publicly available information about this company and its leadership suggests otherwise. Official incorporation documents from the U.K.’s Companies House represent that CodesToYou is headed by an Alan John Mykhailov, a British citizen born in March 1958.

Companies House says Mykhailov is an officer in three other companies, including one called Blackstone Corporate Alliance Ltd. According to the Swiss business tracking service business-monitor.ch, Blackstone Corporate Alliance Ltd. is currently the entity holding a decision-making role in John Bernard’s fake due diligence company — The Inside Knowledge GmbH — which is now in liquidation.

A screen shot of the stock photos and corporate-speak on John Bernard’s old website. Image: Archive.org

Also listed as a partner in Blackstone Corporate Alliance Limited is Igor Hubskyi (a.k.a. Igor Gubskyi), a Ukrainian man who was previously president of The Inside Knowledge GmbH.

The CodesToYou website says the company’s marketing team lead is Maria Yakovleva, and the photo of this employee matches the profile for the LinkedIn account name “Maria Y.” That same LinkedIn profile and photo previously listed Maria by a different first and last name — Mariya Kulikova; back then, Ms. Kulikova’s LinkedIn profile said she was an executive assistant in The Private Office of Mr. John Bernard.

Companies House lists Alan John Mykhailov as a current officer in two other companies, including Frisor Limited, and Ardelis Solutions Limited. A cached copy of the now-defunct Ardelis Solutions website says it was a private equity firm.

CodesToYou’s Maria also included Ardelis Solutions in the work history section of her LinkedIn resume. That is, until being contacted by this author on LinkedIn, after which Maria’s profile picture and any mention of Ardelis Solutions were deleted.

Listed as head of business development at CodesToYou is David Bruno, a Canadian man whose LinkedIn profile says he is founder of an organization called “World Privacy Resource.” As KrebsOnSecurity reported in 2020, Bruno was at the time promoting himself as the co-CEO of a company called SafeSwiss Secure Communication AG, and the founder of another tech startup called Secure Swiss Data.

Secure Swiss Data’s domain — secureswissdata.com — is a Swiss concern that sells encrypted email and data services. According to DomainTools.com, that website name was registered in 2015 by The Inside Knowledge GmbH. In February 2020, a press release announced that Secure Swiss Data was purchased in an “undisclosed multimillion buyout” by SafeSwiss Secure Communication AG.

A cached copy of the Ardelis Solutions website, which said it was a private equity firm and included similar stock images as John Bernard’s investment website.

When reached in 2020 and asked about his relationship to Mr. Bernard, Mr. Bruno said the two were business partners and that he couldn’t imagine that Mr. Bernard would be involved in anything improper. To this day Mr. Bruno is the only person I’ve spoken to who has had anything positive to say about Mr. Bernard.

Mr. Bruno did not respond to requests for comment this time around, but his LinkedIn profile no longer makes any mention of Secure Swiss Data or SafeSwiss — both companies he claimed to run for many years. Nor does it mention CodesToYou. However, Mr. Bruno’s former company SafeSwiss is listed as one of the six “portfolio” companies whose services are promoted on the CodesToYou website.

In mid-2021, Bruno announced he was running for public office in Ontario.

“The Kenora resident is no stranger to the government as he contributed to Canada’s new Digital Charter, Bill C-11, which is a new Cyber Security policy,” reported Drydennow.com, a news website that covers Northwestern Ontario. Drydennow says the next federal election is expected to be held on or before Oct. 16, 2023.

John Clifton Davies was convicted in 2015 of swindling businesses throughout the U.K. that were struggling financially and seeking to restructure their debt. For roughly six years, Davies ran a series of firms that pretended to offer insolvency services, but instead simply siphoned what little remaining money these companies had.

The very first entity mentioned in the technology portfolio advertised on the CodesToYou website is called “MySolve,” and it purports to offer a “multi-feature platform for insolvency practitioners.”

Mr. Davies’ fourth wife, Iryna Davies, is listed as a director of one of the insolvency consulting businesses in the U.K. that was part of John Davies’ 2015 fraud conviction. Prior to his trial for fraud, Davies served 16 months in jail before being cleared of murdering his third wife on their honeymoon in India: Colette Davies, 39, died after falling 80 feet from a viewing point at a steep gorge in the Himachal Pradesh region of India.

Mr. Davies was charged with murder and fraud after he attempted to collect GBP 132,000 in her life insurance payout, but British prosecutors ultimately conceded they did not have enough evidence to convict him.

The scams favored by Davies and his alter egos are smart because he never approaches investors directly; rather, investors are incentivized to put his portfolio in front of tech firms seeking financial backing. And all the best cons begin as an idea or possibility planted in the target’s mind.

It’s also a reliable scam because companies bilked by small-time investment schemes rarely pursue legal action, mainly because the legal fees involved can quickly surpass the losses. On top of that, many victims will likely be too ashamed to admit their duping. Victims who do press their case in court and win then face the daunting challenge of collecting damages from a slew of ephemeral shell corporations.

The latest Bernard victim to speak publicly — a Norwegian company hoping to build a fleet of environmentally friendly shipping vessels — is now embroiled in a lawsuit over a deal gone bad. As part of that scam, Bernard falsely claimed to have secured $100 million from six other wealthy investors, including the founder of Uber and the artist Abel Makkonen Tesfaye, better known as The Weeknd.

Mullvad VPN and Tor Project Create New Privacy-Focused Mullvad Browser

By Lily Hay Newman
Mullvad Browser, a collaboration between the nonprofit and Mullvad VPN, offers an anti-tracking browser designed to be used with a VPN.

Cacti, Realtek, and IBM Aspera Faspex Vulnerabilities Under Active Exploitation

By Ravie Lakshmanan
Critical security flaws in Cacti, Realtek, and IBM Aspera Faspex are being exploited by various threat actors in hacks targeting unpatched systems. This entails the abuse of CVE-2022-46169 (CVSS score: 9.8) and CVE-2021-35394 (CVSS score: 9.8) to deliver MooBot and ShellBot (aka PerlBot), Fortinet FortiGuard Labs said in a report published this week. CVE-2022-46169 relates to a critical

3CX Supply Chain Attack — Here's What We Know So Far

By Ravie Lakshmanan
Enterprise communications software maker 3CX on Thursday confirmed that multiple versions of its desktop app for Windows and macOS are affected by a supply chain attack. The version numbers include 18.12.407 and 18.12.416 for Windows and 18.11.1213, 18.12.402, 18.12.407, and 18.12.416 for macOS. The issue has been assigned the CVE identifier CVE-2023-29059. The company said it's engaging the

World Backup Day is here again – 5 tips to keep your precious data safe

By Paul Ducklin
The only backup you will ever regret is the one you didn't make...

Researchers Detail Severe "Super FabriXss" Vulnerability in Microsoft Azure SFX

By Ravie Lakshmanan
Details have emerged about a now-patched vulnerability in Azure Service Fabric Explorer (SFX) that could lead to unauthenticated remote code execution. Tracked as CVE-2023-23383 (CVSS score: 8.2), the issue has been dubbed "Super FabriXss" by Orca Security, a nod to the FabriXss flaw (CVE-2022-35829, CVSS score: 6.2) that was fixed by Microsoft in October 2022. "The Super FabriXss vulnerability
❌