<ul><li>On May 27, 2025, authorities seized crypting service sites (including AvCheck, Cryptor, and Crypt.guru) used by cybercriminals to test malware evasion capabilities.</li><li>An international law enforcement operation, spearheaded by the U.S. Department of Justice, dismantled an online cybercrime syndicate providing encryption services to help malware evade detection.</li><li>The operation, named Endgame, involved global efforts from U.S., Dutch, Finnish, and other national police forces to shut down malware services. The seized domains offered counter-antivirus tools for cybercriminals.</li><li>CAV services like AVCheck enable cybercriminals to test their malware against antivirus programs discreetly, allowing them to gain unauthorized access to computer systems undetected. Undercover agents confirmed the services were linked to ransomware groups behind attacks in the U.S. and abroad.</li></ul>

Police took down several popular counter-antivirus (CAV) services, including AvCheck

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