The crowded ransomware market is now home to three newly discovered players that recently gained the attention of security researchers and malware analysts -- including one that targets Mac users and another blamed for a recent attack on the Texas Department of Transportation.

Dubbed OSX.EvilQuest, the Mac ransomware was observed being distributed on a Russian torrent link-sharing forum in the form of a downloadable disk image file. This file posed as an installer for the Little Snitch host-based application firewall.

Researchers from Objective-See and Malwarebytes have both reported on the threat [1, 2], with the former crediting K7 Computing researcher Dinesh Devadoss with first tweeting about a OSX.EvilQuest malware sample with a zero-percent anti-virus detection rate and a file name impersonating a Google Software Update program.

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