hellokitty Unknown

Prima attivita: -
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Vittime (30gg)
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Unit42 states that HelloKitty is a ransomware family that first surfaced at the end of 2020, primarily targeting Windows systems. The malware family got its name due to its use of a Mutex with the same name: HelloKittyMutex. The ransomware samples seem to evolve quickly and frequently, with different versions making use of the .crypted or .kitty file extensions for encrypted files. Some newer samples make use of a Golang packer that ensures the final ransomware code is only loaded in memory, most likely to evade detection by security solutions.

Leak Site

Onion URL: http://3r6n77mpe737w4sbxxxrpc5phbluv6xhtdl5ujpnlvmck5tc7blq2rqd.onion

Metadata

Slug: hellokitty

Created: 14/01/2026 08:19

Updated: 07/03/2026 04:00