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Introduction: Knowing the Notions Industrial Internet of Things (IIoT) incorporates technologies such as machine learning, machine-to-machine (M2M) communication, sensor data, Big Data, etc. This article will focus predominantly on the consumer Internet of Things (IoT) and how it relates to Operational Technology (OT). Operational Technology (OT) is a term that defines a specific category of […]
The post IoT Security Fundamentals: IoT vs OT (Operational Technology) appeared first on Infosec Resources.
It’s easy to imagine where we would be without women in technology.
We’d be poorer for it.
With Mother’s Day upon us, I couldn’t help but think once more about the stark employment figures I shared in my International Women’s Day blog just a few weeks ago. Millions of women have involuntarily left the workforce at a much higher rate than men during the pandemic—with roughly one third of women in the U.S. aged 25-44 citing that childcare was the reason for that unemployment.
Reflecting on this further, I thought about the women in technology who’ve left their positions during this past year. It’s a loss of talent and capability that’s set back decades of advances by trailblazing women who not only shine in their field yet also do so in male-dominated realms of study, research, and employment.
So as we look ahead to recovery, we should also look back. By celebrating just a few of the women in technology who shaped our world today, women who truly are “mothers of invention,” perhaps we can remember just how vital women are in our field—and how we should double down on our efforts to welcome them back.
Imagine a time when the term “software engineering” wasn’t recognized, even though it was crucial to us landing on the moon.
Such were the days when Margaret Hamilton began her work at Massachusetts Institute of Technology (MIT) as a job to support her family while her husband went to law school at Harvard. This was in 1959 and would introduce her to Edward Lorenz, the father of chaos theory, and put her on the path to help humanity set its first footsteps on the moon.
It was her work and her code that developed a software-driven system that warned astronauts of in-flight emergencies, an advance she credits her young daughter for inspiring, as recounted in this interview:
Often in the evening or at weekends I would bring my young daughter, Lauren, into work with me. One day, she was with me when I was doing a simulation of a mission to the moon. She liked to imitate me – playing astronaut. She started hitting keys and all of a sudden, the simulation started. Then she pressed other keys and the simulation crashed … I thought: my God – this could inadvertently happen in a real mission.
I suggested a program change to prevent a prelaunch program being selected during flight. But the higher-ups at MIT and NASA said the astronauts were too well trained to make such a mistake. Midcourse on the very next mission, Apollo 8, one of the astronauts on board accidentally did exactly what Lauren had done. The Lauren bug! It created much havoc and required the mission to be reconfigured. After that, they let me put the program change in, all right.
When you search online, you have this woman to thank.
A true pioneer, Karen Spärck Jones worked at Cambridge, during which time she developed the algorithm for deriving a statistic known as “term frequency–inverse document frequency” (TFIDF). In lay terms, TFIDF determines how important a word is relative to the document or collection of terms in which it is found. Sound familiar? It should, as her work forms the basis of practically every search engine today.
Spärck Jones remained outspoken with regards to what she referred to as “professionalism” in technology. This had two layers: the first being the technical efficacy of a solution, the second being the rationale for even doing it in the first place. In her words,
“[T]o be a proper professional you need to think about the context and motivation and justifications of what you’re doing … You don’t need a fundamental philosophical discussion every time you put finger to keyboard, but as computing is spreading so far into people’s lives you need to think about these things.”
Her vision for computing and her hands-on work led to development of COBOL, a programming language still in use today. Driving that vision was the belief that human language could be used as the basis for a programming language, making it more accessible, particularly for business use. The result was the FLOW-MATIC programming language, which was later developed into COBOL, a language that is estimated to be used in 95% of ATM card swipes.
During her time as a naval officer, she helped transform centralized Defense Department systems into smaller, distributed networks akin to the internet we now know and use. At her retirement near the age of 80, she went to work in the private sector where she held the role of full-time senior consultant until her passing at age 85. This 1983 profile of her, aired when she was 76, is certainly worth a watch.
Quite plainly, Perlman’s work paved the way for the routing protocols that underpin the modern internet.
Prior to Perlman’s work, as networks grew and accordingly became more complex, data would often flow into loops that prevented them from reaching their intended destination. Enter her creation of the Spanning Tree Protocol (STP), which can handle large clouds of computers and network devices. While its since evolved, the concept of an adaptive network remains squarely in place.
Another advance of hers was introducing computer programming to young children aged 3 to 5 back in the 1970s. While working at MIT’s LOGO Lab, she created TORTIS (Toddler’s Own Recursive Turtle Interpreter System), which used buttons from programming and allowed for experimentation with a robotic turtle that would follow a toddler’s commands. In the abstract for her paper that documented the work, she emphasized what she felt was a vital point, “Most important of all, it should teach that learning is fun.”
These women have led and inspired, and likewise it’s on all of us in technology to build on the advances they made possible through both our work and the workplace cultures we foster—particularly as we begin our recovery from this pandemic.
One of the many reasons I’m proud to be a part of McAfee is our Women in Security (WISE) community. It’s truly a forward-thinking program, which we introduced to enrich and support women in the tech sector through mentorship programs and professional development conferences. It’s one of the several, tangible ways we actively strive for a vibrant and diverse culture at McAfee.
Another powerful voice for women in tech is AnitaB.org, which supports women in technical fields, as well as the organizations that employ them and the academic institutions training the next generation. A full roster of programs help women grow, learn, and develop their highest potential.
And for looking forward yet further, there’s Girls Who Code, which is building the next generation of female engineers and technologists. Their data shows why this is so vital. They found that 66 percent of girls aged six to 12 show interest in computing, but that drops to 32 percent for girls aged 13 to 17, and then plummets to only 4 percent for college freshmen. Accordingly, they support several programs for school-aged girls from third grade up through senior year of high school, help educators and communities launch clubs, and advocate for women in their field through their work in public policy and research.
And that’s just for starters. For an overview of yet more organizations where you can get involved, check out this list of 16 organizations for women in tech—all of which help us realize a better world with women in technology.
The post The Mothers of Invention: Women Who Blazed the Trail in Technology appeared first on McAfee Blogs.
Have you ever come across a website that just didn’t look quite right? Perhaps the company logo looked slightly misshapen, or the font seemed off-brand. Odds are, you landed on a phony version of a legitimate corporation’s website—a tried and true tactic relied on by many cybercriminals.
A fake login page is essentially a knock-off of a real login page used to trick people into entering their login credentials, which hackers can later use to break into online accounts. These websites mirror legitimate pages by using company logos, fonts, formatting, and overall templates. Depending on the attention to detail put in by the hackers behind the imposter website, it can be nearly impossible to distinguish from the real thing. Consequentially, fake login pages can be highly effective in their end goal: credential theft.
How do these pages get in front of a consumer in the first place? Typically, scammers will target unsuspecting recipients with phishing emails spoofing a trusted brand. These emails may state that the user needs to reset their password or entice them with a deal that sounds too good to be true. If the consumer clicks on the link in the email, they will be directed to the fake login page and asked to enter their username and password. Once they submit their information, cybercriminals can use the consumer’s data to conduct credential stuffing attacks and hack their online profiles. This could lead to credit card fraud, data extraction, wire transfers, identity theft, and more.
Scammers have recently targeted Canadians with attacks leveraging fake login pages to harvest personal data. For example, criminals preyed on employees who were expecting COVID-19 relief grants in the form of the CERB (Canada Emergency Response Benefit). These funds were sent via an electronic transfer from Interac, a legitimate Canadian interbank network. However, a phishing campaign spoofing Interac’s e-transfer service circulated emails claiming that the Canada Revenue Agency (CRA) made a CERB deposit of $1,957.50 CAD.
These emails directed recipients to a fake CRA login page, which then redirected to a phony Interac e-transfer site where users were asked to select their personal bank. From there, the recipient was asked to enter their username, card number, password, security questions and answers for their online banking profile, and other personally identifiable information—providing all the information a criminal would need to hack into the user’s bank account.
If you Google “fake login pages,” you will quickly find countless guides on how to create fake websites in seconds. Ethical concerns aside, this demonstrates just how common vector spoofed websites are for cyberattacks. While it has been easier to distinguish between real and fake login pages in the past, criminals are constantly updating their techniques to be more sophisticated, therefore making it more difficult for consumers to recognize their fraudulent schemes.
One reason why fake login pages are so effective is due to inattentional blindness, or failure to notice something that is completely visible because of a lack of attention. One of the most famous studies on inattentional blindness is the “invisible gorilla test.” In this study, participants watched a video of people dressed in black and white shirts passing basketballs. Participants were asked to count the number of times the team in white passed the ball:
Because participants were intently focused on counting the number of times the players in white passed the ball, more than 50% failed to notice the person in the gorilla costume walking through the game. If this is the first time you’ve seen this video, it’s likely that you didn’t notice the gorilla, the curtain changing color from red to gold, or the player in black leaving the game. Similarly, if you come across a well-forged login page and aren’t actively looking for signs of fraud, you could inherently miss a cybercriminal’s “invisible gorilla.” That’s why it’s crucial for even those with phishing training to practice caution when they come across a website asking them to take action or enter personal details.
The most important defense against steering clear of fake login pages is knowing how to recognize them. Follow these tips to help you decipher between a legitimate and a fake website:
Most fake login pages are circulated vis phishing messages. If you receive a suspicious message that asks for personal details, there are a few ways to determine if it was sent by a phisher aiming to steal your identity. Phishers often send messages with a tone of urgency, and they try to inspire extreme emotions such as excitement or fear. If an unsolicited email urges you to “act fast!” slow down and evaluate the situation.
Oftentimes, hackers will use a URL for their spoofed website that is just one character off from the legitimate site, such as using “www.rbcr0yalbank.com” versus “www.rbcroyalbank.com.” Before clicking on any website from an email asking you to act, hover over the link with your cursor. This will allow you to preview the URL and identify any suspicious misspellings or grammatical errors before navigating to a potentially dangerous website.
HTTPS, or Hypertext Transfer Protocol Secure, is a protocol that encrypts your interaction with a website. Typically, websites that begin with HTTPS and feature a padlock in the top left corner are considered safer. However, cybercriminals have more recently developed malware toolkits that leverage HTTPS to hide malware from detection by various security defenses. If the website is secured with HTTPS, ensure that this isn’t the only way you’re analyzing the page for online safety.
Multi-factor authentication requires that users confirm a collection of things to verify their identity—usually something they have, and a factor unique to their physical being—such as a retina or fingerprint scan. This can prevent a cybercriminal from using credential-stuffing tactics (where they will use email and password combinations to hack into online profiles) to access your network or account if your login details were ever exposed during a data breach.
An identity theft alert service warns you about suspicious activity surrounding your personal information, allowing you to jump to action before irreparable damage is done. McAfee Total Protection not only keeps your devices safe from viruses but gives you the added peace of mind that your identity is secure, as well.
The post How to Spot Fake Login Pages appeared first on McAfee Blog.
Spyware is tricky. Some types notify users that they’re monitoring activity. Others function in stealth mode and use the information they collect for nefarious purposes. Spyware is a type of software that collects data about online users and reports it to a company or an individual. What just about everyone can agree on is that anonymous browsing is looking more and more appealing and is likely the way of the future.
Here’s more about the types of spyware, which types are legal, and how you can scrub your device and live more confidently online.
Here are a few types of spyware and facts about each:
Is it legal? Definitely not!
What is its purpose? Criminal
Keyloggers are the most intrusive of the spyware variations. It does exactly as its name suggests: It takes note of keyboard strokes, logs them, and reports to the owner of the nefarious software. Once the cybercriminal has digitally looked over your shoulder at your online activity, they make note of your passwords, walk into your online accounts, and pilfer your private personal information. They could use this information to gain entry to your online bank accounts or steal your identity.
Keyloggers are downloaded onto devices (cellphones, tablets, laptops, or desktop computers) without the user’s knowledge. Cybercriminals can hide them within email attachments or in malicious web pages. So, the best way to steer clear of keyloggers is to never download attachments you’re unsure about and don’t visit sites that seem unprofessional. One rule of thumb is to mostly stick to URLs that begin with https and include a lock icon. These sites are almost always secure.
To determine if your device is infected with a keylogger, check your system’s performance. Is your device running slowly? See if there are any spikes in activity or unknown programs running in the background. This could indicate that your device is hosting a malicious program.
Is it legal? Sometimes
What is its purpose? Advertising and criminal
Adware is categorized as a type of spyware. It tracks users’ online activity and spits out targeted pop-up advertisements. If you have the pop-up blocker enabled on your browser, you’ll likely be spared from the annoyance. Additionally, pop-ups can slow your device, so that’s another reason to turn on the pop-up blocking feature. Legitimate adware often asks users to opt into targeted ads.
Adware turns malicious (and illegal) when it contains malware. Sometimes cyber criminals hide malware within pop-ups. It’s easy to accidentally hit a link within a pop-up when you’re aiming quickly for the X to close it.
It’s easy to spot a device with an adware infestation. First, the number of pop-ups will be out of control. Also, the device will crash often, run very slowly, and have a short battery life. An antivirus program will likely be able to identify and remove the culprit. You can also check out your system monitor and end tasks that are draining your device’s power.
Is it legal? Yes
What is its purpose? Advertising
Cookies are delicious, especially to advertisers who use them to better target ads and make profits selling collected user data to third-party companies. Cookies are sometimes categorized as spyware, because they log the websites you visit and report them. You may notice the banners on websites that ask you to accept cookies.
Many users today are uneasy with sharing their online activity with strangers and advertisers. Sometimes the ads that pop up on your social media feed or in sidebars seem a little too targeted and it feels like someone is listening in to your conversations and attempting to make a profit from them.
How to Browse Free of Spyware
To scrub cybercriminals from your devices and confuse advertisers, consider the following steps you can easily add to your daily routine:
The post How to Live a Digital Life Free of Spyware appeared first on McAfee Blog.
There were multiple times during my digital parenting journey when I would have loved to put my head in the sand. Pretend that life was easy and that my kids weren’t going to grow up and want devices and to join social media. But I didn’t. I couldn’t. With four kids who had technology running through their veins, I had no choice but to embrace it.
While many kids will first experience the internet from a family laptop or via their parent’s phone at a coffee shop (we’ve all done it), it’s when they get these devices into their hot little hands unsupervised a few years down the track that the real show starts. And that’s usually when they get access to a phone. Research from our eSafety Office shows that just under half of Aussie kids between 6 and 13 use a smartphone with about 1/3 owning their own device.
And while we can all wax lyrical about the good old days when we used payphones and how great it would be if our kids didn’t have smartphones, we need to keep it real. Technology is not going anywhere so the best thing we can to accept it’s here, educates our kids about how to use it safely and introduce boundaries and rules to ensure they are as safe as possible.
So, without further ado, let me introduce you to the concept of a family technology contract – a great way to manage your kids and their tech use.
I like to think of a tech agreement as a clear outline of your expectations of your kids’ digital behavior – any behavior that occurs while using a device should be included in the agreement and yes, include TV here too! Now, before we progress, I have to share one key tip – don’t even think of putting together an agreement like this when tensions are high, or a heated argument is still in place – it will never work. Only talk about this or start working on it when you are in a calm and serene headspace.
The most important thing is to have an agreement that is suitable for your kids’ ages and maturity and one that works for your family’s schedule. There’s no point making your 5-year-old sign an agreement that limits their time on Instagram when they’re probably quite happy visiting only the online sites that you have ‘bookmarked’ for them. And if your kids have a super busy schedule then you might want to include a rule that means there is no ‘leisure screen time’ (eg TV/movie viewing) till all homework is complete.
While it’s entirely based on your kids’ interests and tech usage, I think 3 is a good age to start with a basic agreement. That’s when they start understanding rules. And how old is too old for a tech contract, I hear you ask? Well, I acknowledge that introducing new rules and boundaries when your kids are well into their teens may be difficult however if things feel out of control and you are concerned about their mental health and less than ideal digital habits then it may also be exactly what you all need!
Keeping an agreement age-appropriate and relevant is essential. You may also want to keep it simple and focus on a few key things, such as:
But it can include so much more. Here are some items you may choose to include in your own personalized version. Think of this list as a shopping list. Simply, pick & choose what works for the ages of your kids and your family’s structure.
Online Behaviour
I understand that access to my devices is a privilege and breaking this agreement will lead to the following consequences: (list what you feel is appropriate)
I would have all parties sign and date the agreement: both parents and kids. You may choose to keep a copy on the fridge? Again, whatever works for your situation.
So, if you are feeling like this digital parenting thing is getting the better of you, please consider introducing an agreement. For decades, parenting experts have written about the virtues of establishing clear boundaries for our kids and in my opinion, a tailored family tech agreement absolutely does that!
Good luck!!
Alex x
The post Why You Need to Get a Family Technology Agreement Happening appeared first on McAfee Blog.
McAfee Labs have been observing a spike in phishing campaigns that utilize Microsoft office macro capabilities. These malicious documents reach victims via mass spam E-mail campaigns and generally invoke urgency, fear, or similar emotions, leading unsuspecting users to promptly open them. The purpose of these spam operations is to deliver malicious payloads to as many people as possible.
A recent spam campaign was using malicious word document to download and execute the Ursnif trojan. Ursnif is a high-risk trojan designed to record various sensitive information. It typically archives this sensitive data and sends it back to a command-and-control server.
This blog describes how attackers use document properties and a few other techniques to download and execute the Ursnif trojan.
Threat Summary
Infection Chain
The malware arrives through a phishing email containing a Microsoft Word document as an attachment. When the document is opened and macros are enabled, Word downloads a DLL (Ursnif payload). The Ursnif payload is then executed using rundll32.exe
Figure-1: flowchart of infection chain
Word Analysis
Macros are disabled by default and the malware authors are aware of this and hence present an image to entice the victims into enabling them.
Figure-2: Image of what the user sees upon opening the document
VBA Macro Analysis of Word Document
Analyzing the sample statically with ‘oleId’ and ‘olevba’ indicates the suspicious vectors..
Figure-3: Oleid output
Figure-4: Olevba output
The VBA Macro is compatible with x32 and x64 architectures and is highly obfuscated as seen in Figure-5
Figure-5: Obfuscated VBA macro
To get a better understanding of the functionality, we have de-obfuscated the contents in the 2 figures shown below.
Figure-6: De-obfuscated VBA macro (stage 1)
Figure-7: De-obfuscated VBA macro (stage 2)
An interesting characteristic of this sample is that some of the strings like CLSID, URL for downloading Ursnif, and environment variables names are stored in custom document properties in reverse. As shown in Figure-7, VBA function “ActiveDocument.CustomDocumentProperties()” is used to retrieve the properties and uses “StrReverse” to reverse the contents.
We can see the document properties in Figure-8
Figure-8: Document properties
Payload Download and Execution:
The malicious macro retrieves hidden shellcode from a custom property named “Company” using the “cdec” function that converts the shellcode from string to decimal/hex value and executes it. The shellcode is shown below.
Figure-9: Raw Company property
The shellcode is written to memory and the access protection is changed to PAGE_EXECUTE_READWRITE.
Figure-10: Code of VirtualProtect
Figure-11: Shellcode’s memory and protection after calling VirtualProtect()
After adding the shellcode in memory, the environment variable containing the malicious URL of Ursnif payload is created. This Environment variable will be later used by the shellcode.
Figure-12: Environment variable set in Winword.exe space
The shellcode is executed with the use of the SetTimer API. SetTimer creates a timer with the specified time-out value mentioned and notifies a function when the time is elapsed. The 4th parameter used to call SetTimer is the pointer to the shellcode in memory which will be invoked when the mentioned time is elapsed.
Figure-13: SetTimer function (Execution of shellCode)
The shellcode downloads the file from the URL stored in the environmental variable and stores it as ” y9C4A.tmp.dll ” and executes it with rundll32.exe.
| URL | hxxp://docmasterpassb.top/kdv/x7t1QUUADWPEIQyxM6DT3vtrornV4uJcP4GvD9vM/ |
| CMD | rundll32 “C:\Users\user\AppData\Local\Temp\y9C4A.tmp.dll”,DllRegisterServer |
Figure-14: Exports of Downloaded DLL
After successful execution of the shellcode, the environment variable is removed.
Figure-15: Removal of Environment Variable
IOC
| TYPE | VALUE | PRODUCT | DETECTION NAME |
| Main Word Document | 6cf97570d317b42ef8bfd4ee4df21d217d5f27b73ff236049d70c37c5337909f | McAfee LiveSafe and Total Protection | X97M/Downloader.CJG |
| Downloaded dll | 41ae907a2bb73794bb2cff40b429e62305847a3e1a95f188b596f1cf925c4547 | McAfee LiveSafe and Total Protection | Ursnif-FULJ |
| URL to download dll | hxxp://docmasterpassb.top/kdv/x7t1QUUADWPEIQyxM6DT3vtrornV4uJcP4GvD9vM/ | WebAdvisor | Blocked |
MITRE Attack Framework
| Technique ID | Tactic | Technique Details | Description |
| T1566.001 | Initial Access | Spear phishing Attachment | Manual execution by user |
| T1059.005 | Execution | Visual Basic | Malicious VBA macros |
| T1218.011 | Defense Evasion | Signed binary abuse | Rundll32.exe is used |
| T1027 | Defense Evasion | Obfuscation techniques | VBA and powershell base64 executions |
| T1086 | Execution | Powershell execution | PowerShell command abuse |
Conclusion
Macros are disabled by default in Microsoft Office applications, we suggest keeping it that way unless the document is received from a trusted source. The infection chain discussed in the blog is not limited to Word or Excel. Further threats may use other live-off-the-land tools to download its payloads.
McAfee customers are protected against the malicious files and sites detailed in this blog with McAfee LiveSafe/Total Protection and McAfee Web Advisor.
The post Test Post appeared first on McAfee Blog.
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Pledging to follow healthier habits is consistently the most popular new year’s resolution. That January 1st promise looks different to everyone: snacking less often, going to the gym more often, drinking more water, drinking less soda, etc. This year, instead of a juice cleanse subscription, opt for a healthier habit that’s not an unappetizing shade of green: follow this digital detox, instead! In three easy steps, you can make great strides in improving your digital wellness.
There are various aspects of your digital habits that you should consider updating for a more private and safer online life. For starters, update your passwords. Do you reuse the same password for multiple online accounts? Doing so puts your personally identifiable information (PII) at great risk. For example, if a business with which you have an online shopping account is breached by a cybercriminal, your login and password combination could make it on the dark web, through no fault of your own. Then, through a brute force attack, a criminal could use that same password and username combo to walk into your banking or tax filing accounts.
Remembering unique, complicated passwords and passphrases for your dozens of online accounts would be impossible. Luckily, there’s software that remembers them for you! It’s called a password manager, which acts as a vault for all your login information. Just remember one master password, and you can be confident in the security of your accounts and never have to deal with the hassle of forgetting passwords.
Another aspect of updating you should adopt in 2023 is making an effort to always upgrade to the latest software updates on all your devices. The easiest way to do this is to turn on automatic updates. From there, you don’t need to take any further action! Apps and operating systems (like Apple, Android, and Windows) often release updates to patch security vulnerabilities. When you run outdated software, there’s a chance a cybercriminal could take advantage of that security gap.
Finally, make sure that you keep updated on the latest security headlines. Consider setting up news alerts to notify you when a breach occurs at a company that you frequent or have an account with. Speed is often key in making sure that your information remains safe, so it’s best practice to have your finger on the pulse on the security news of the day.
A new year digital detox can be a whole family affair. Connect with your family, anyone connected to your home network, and your elderly relatives to get everyone on the same page with security best practices. Here are some common online security snags people of all ages encounter:
Everyone has an oversharer on their newsfeed. Alert your family members of the dangers of posting too much about their personal life. When someone takes those “get to know you” quizzes and posts their answers, cybercriminals can use that post to take educated guesses at your passwords. Additionally, social engineers can tailor social media scams to specific people in order to increase the chances of tricking someone into sending money or sharing valuable personal or banking details.
While spam filters catch a lot of phishing emails, phishers are getting smarter by the day and are making their attempts more and more believable. Connect with your loved ones and make sure they know how to recognize phishing emails, texts, and social media direct messages. Telltale signs of a phishing message include:
If you’re ever unsure if a message is a phishing attempt, the best course of action is to just delete it. If the “sender” is a well-known institution, follow up with a phone call using the official customer service number listed on their website. The phisher may also claim to be someone you know personally. In that case, give the loved one in question a phone call. It’s a good excuse to reconnect and have a nice conversation!
In the quest for free streams of the latest new show or movie, people often encounter unsafe sites that hide malware, spyware or other types malicious links and programs. Some types of malware can jump from one device to others connected to the same home Wi-Fi network. That’s why it’s important to make sure everyone under your roof practices excellent digital security habits. One wrong click could sink an entire household. Consider signing up your family for a safe browsing extension that can notify you when you stray onto a risky site. So, instead of putting your device at risk during movie night, connect with your friends or loved ones over one copy of a safely and officially purchased version.
As with any new health regimen, immediately zooming from zero to a hundred will likely be overwhelming and result in failure. The same goes for adopting new digital safety habits. If you try to do too much at once, all the security measures you put in place will likely get in the way of your daily online activities. The more inconvenient it is, the more likely you may be to cut corners; thus, negating all the progress you’ve made.
Being cybersafe doesn’t mean you can’t still enjoy your connected devices to the fullest. It just means that you may need to act with more intention and slow down before volunteering personal details online or clicking on links.
To supplement your digital detox, consider signing up for McAfee+ Ultimate to make 2023 the year for a safer online you. McAfee+ Ultimate includes all the tools you need to live your best online life safely and privately, including a password manager, web protection, unlimited VPN and antivirus, and $1 million in identity theft coverage and restoration for peace of mind.
Cheers to a digitally smart 2023!
The post Start the New Year Right With This 3-Step Digital Detox appeared first on McAfee Blog.
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.
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.
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.”
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.
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
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