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Security researcher expose malicious GitHub repositories that host more than 300 backdoored apps

An unnamed security researcher at dfir.it recently revealed certain GitHub accounts that host more than “300 backdoored Windows, Mac, and Linux applications and software libraries”.

The researcher in his blog titled, “The Supreme Backdoor Factory” explained how he stumbled upon this malicious code and various other codes within the GitHub repo. The investigation started when the researcher first spotted a malicious version of the JXplorer LDAP browser.

The researcher in his blog post states, “I did not expect an installer for a quite popular LDAP browser to create a scheduled task in order to download and execute PowerShell code from a subdomain hosted by free dynamic DNS provider.”

According to ZDNet, “All the GitHub accounts that were hosting these files –backdoored versions of legitimate apps– have now been taken down.”

The malicious files included codes which could allow boot persistence on infected systems and further download other malicious code. The researcher has also mentioned that the malicious apps downloaded a Java-based malware named Supreme NYC Blaze Bot (supremebot.exe).

“According to researchers, this appeared to be a “sneaker bot,” a piece of malware that would add infected systems to a botnet that would later participate in online auctions for limited edition sneakers”, ZDNet reports.

The researcher revealed that some of the malicious entries were made via an account with the name of Andrew Dunkins that included a set of nine repositories, each hosting Linux cross-compilation tools. Each repository was watched or starred by several already known suspicious accounts.

The report mentions that accounts that did not host backdoored apps were used to ‘star’ or ‘watch’ the malicious repositories and help boost their popularity in GitHub’s search results.

To know about these backdoored apps in detail, read the complete report, ‘The Supreme Backdoor Factory

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