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malware
Atomic macOS Malware BleepingComputer Credit Card Stealer Crytocurrency Google Chrome macOS malware

Atomic macOS Malware: New Malware Steals Credit Card Credentials in Chrome


A brand-new malware has apparently been targeting macOS. The malware, according to BleepingComputer, is named “Atomic” and was being sold to cybercriminals in darknet markets for $1,000 a month. 

A victim management UI that is simple to use and gives malicious actors access to very sensitive information, such as keychain passwords, cookies, files from local computers, and other information that may put victims in serious trouble, is provided by this ill-intentioned subscription.

What is Atomic Capable of? 

While Atomic is an information-stealing malware, it can drastically make its quarries much poorer. When cybercriminals buy Atomic, they receive a DMG file with a 64-bit Go-based malware program that can steal credit card information from browsers. This covers Yandex, Opera, Vivaldi, Microsoft Edge, Mozilla Firefox, and Google Chrome. 

After gaining access to a victim's Mac, Atomic may show a bogus password window asking users to enter their system passwords. As a result, attackers can access the target's macOS computer and cause havoc. 

Moreover, due to the activities of Atomic, cryptocurrency holders are particularly vulnerable. More than 50 well-known cryptocurrency extensions, including Metamask and Coinbase, are intended targets of this macOS malware. 

Atomic, unfortunately, has a tendency to go unnoticed. Only one malicious software detection was made by 59 anti-virus scanners. 

How can you Protect Yourself from Atomic macOS Malware? 

Thankfully, Atomic will not be hiding in any official macOS services. Atomic is disseminated by phishing emails, laced torrents, and social media posts by nefarious buyers. Some even use the influence of black SEO to lure Google users into downloading malicious software that poses as legitimate software. 

In case you are a crypto holder, it is best advised to use a well-known crypto hardware wallet in order to protect yourself from digital-asset thieves. Moreover, it has also been advised to not use software wallets, since that way valuable virtual currencies are majorly exposed. 

It has also been recommended to online users to remove their credit card information from Google Chrome by navigating to Settings > Autofill > Payment Methods. Tap on the three-dotted icons next to your credit cards and click on "Turn off virtual card." Go to pay.google.com, select Payment Methods, and then click "Remove" next to your credit cards to take things a step further.  

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Tactics
Card Skimming Credit Card Fraud Credit Card Stealer Cyber Security Microsoft Safety Security Tactics

Microsoft: Credit Card Stealers are Switching Tactics to Conceal the Attack

 

Attackers are manipulating e-commerce checkout websites and capturing payment card information by utilising picture files with a concealed malicious PHP script. According to Microsoft, card-skimming malware is increasingly employing malicious PHP scripts on web servers to modify payment sites and circumvent browser safeguards activated by JavaScript code. 

Card-skimming malware has changed its approach, according to Microsoft threat analysts. Card skimming has been dominated over the past decade by the so-called Magecart malware, which uses JavaScript code to inject scripts into checkout pages and transmit malware that grabs and steals payment card information. Injecting JavaScript into front-end processes was very conspicuous, according to Microsoft, because it might have triggered browser defences such as Content Security Policy (CSP), which prevents external scripts from loading. 

By attacking web servers with malicious PHP scripts, attackers discovered a less noisy method. In November 2021, Microsoft discovered two malicious image files on a Magento-hosted server, one of which was a fake browser favicon. Magento is a well-known e-commerce system. The images included an embedded PHP script, which did not run on the compromised web server by default. Instead, in order to only target shoppers, the PHP script only starts after validating via cookies that the web admin is not currently signed-in. 

The PHP script obtained the current page's URL and looked for the keywords "checkout" and "one page," which are linked to Magneto's checkout page. "The insertion of the PHP script in an image file is interesting because, by default, the webserver wouldn't run the said code. Based on previous similar attacks, we believe that the attacker used a PHP 'include' expression to include the image (that contains the PHP code) in the website's index page, so that it automatically loads at every webpage visit," Microsoft explained. 

Malicious PHP is increasingly being used in card-skimming malware. Last week, the FBI issued a warning about new examples of card-skimming attackers infecting US business checkout sites with web shells for backdoor remote access to the webserver using malicious PHP. Sucuri discovered that PHP skimmers targeting backend web servers were responsible for 41% of new credit card-skimming malware discovered in 2021. Magecart Group 12 is distributing new web shell malware, according to Malwarebytes, that dynamically loads JavaScript skimming code via server-side requests to online merchants. 

Malwarebytes' Jérôme Segura noted, "This technique is interesting as most client-side security tools will not be able to detect or block the skimmer. Unlike previous incidents where a fake favicon image was used to hide malicious JavaScript code, this turned out to be a PHP web shell."    

However, dangerous JavaScript is still used to skim cards. Card-skimming malware based on JavaScript spoofing Google Analytics and Meta Pixel (previously Facebook Pixel) scripts, for example, was discovered by Microsoft.
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