First Malware Targeting AWS Lambda Serverless Platform Discovered

A 1st-of-its-kind malware concentrating on Amazon Web Services’ (AWS) Lambda serverless computing system has been learned in the wild.

Dubbed “Denonia” right after the name of the domain it communicates with, “the malware uses more recent tackle resolution approaches for command and control website traffic to evade regular detection measures and virtual network access controls,” Cado Labs researcher Matt Muir explained.

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The artifact analyzed by the cybersecurity organization was uploaded to the VirusTotal database on February 25, 2022, sporting the identify “python” and packaged as a 64-little bit ELF executable.

Nonetheless, the filename is a misnomer, as Denonia is programmed in Go and harbors a custom-made variant of the XMRig cryptocurrency mining computer software. That said, the manner of preliminary obtain is not known, while it is suspected it may possibly have involved the compromise of AWS Entry and Solution Keys.

One more noteworthy attribute of the malware is its use of DNS over HTTPS (DoH) for communicating with its command-and-control server (“gw.denonia[.]xyz”) by concealing the site visitors inside encrypted DNS queries.

Even so, “python” is not the only sample of Denonia unearthed so considerably, what with Cado Labs obtaining a 2nd sample (named “bc50541af8fe6239f0faa7c57a44d119.virus”) that was uploaded to VirusTotal on January 3, 2022.

“Whilst this initially sample is pretty innocuous in that it only runs crypto-mining computer software, it demonstrates how attackers are employing advanced cloud-particular expertise to exploit intricate cloud infrastructure, and is indicative of likely long run, far more nefarious attacks,” Muir mentioned.

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