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Malware

ZxxZ

aka MuuyDownloader

Cisco Talos attributes this backdoor with moderate confidence to the Bitter APT.

ZxxZ, also known as MuuyDownloader, is a Windows malware family operated by HAZY TIGER.

Background

Cisco Talos links this backdoor to the Bitter APT group, assessing the attribution with a moderate level of confidence.


Source: Malpedia (Fraunhofer FKIE).