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Tool / Malware

SysUpdate

S0663 · Windows, Linux

SysUpdate is a backdoor written in C++ that has been used by Threat Group-3390 since at least 2020.

ATT&CK S0663 2 actors documented
Sigma rules0 YARA rules1 Live IOCs0
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Actors Using This

2
chinaAPT27
chinaKe3chang
⚊

Live Indicators

Indicators are defanged for safe handling. Newest first.
Aliases
SysUpdate, HyperSSL, Soldier, FOCUSFJORD
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