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EvilQuest, also known as ThiefQuest, is macOS malware targeting Mac users. The provided content describes it as a true computer virus that combines ransomware functionality with remote tasking capabilities. It has been observed in pirated software and is capable of encrypting files and displaying a ransom note. Beyond ransomware behavior, it also supports file exfiltration, keylogging, and viral infection of binaries, indicating both destructive and espionage-oriented functionality. Persistence is achieved via launch agents and/or launch daemons. The content does not attribute EvilQuest to a specific threat actor or industry target, but it clearly identifies macOS users as the victim population.
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2 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A macOS ransomware and virus that encrypts files, exfiltrates data, supports remote tasking, keylogging, and virally infects other binaries. Distributed via pirated software.
OSX.EvilQuest is ransomware targeting Mac users, with viral infection capabilities and insidious features.
Match every observed IP, domain, and hash against your live telemetry.
Named campaigns wielding this family, with evidence pinned to each claim.
CVEs this family uses for access and lateral movement.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Every documented technique, ranked by evidence weight.
Reddit, Mastodon, and CTI community discussion around this family.