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UNC6201  (Back to overview)


UNC6201 is a sophisticated Chinese state-sponsored hacking group that exploited CVE-2026–22769, a critical vulnerability in Dell RecoverPoint for Virtual Machines appliances, to establish a persistent presence. They deployed a permanent backdoor using techniques like Single Packet Authorization and "Port Knocking." Unlike typical hackers who conceal their activities within the Operating System, UNC6201 operated at the Virtualization Layer to avoid detection.


Associated Families

There are currently no families associated with this actor.


References
2026-02-17GoogleDaniel Sislo, Fernando Tomlinson, John Scarbrough, Jr., Nick Harbour, PETER UKHANOV, Rich Reece
From BRICKSTORM to GRIMBOLT: UNC6201 Exploiting a Dell RecoverPoint for Virtual Machines Zero-Day
BRICKSTORM GRIMBOLT SLAYSTYLE UNC6201

Credits: MISP Project