UNC5221
Nation-state Espionage Dormant
- Mentions
- 1
- First seen
- 05 Jun 2026
- Last seen
- 05 Jun 2026
Relevant to you ยท Relevant
- Threat focus:
- espionage / apt
Origin
Unattributed
Sources
inferred Confidence high
Profile
UNC5221 is a Chinese advanced persistent threat (APT) group recently observed deploying new malware to maintain access to compromised networks. This backdoor malware allows the actor to remain persistent within infiltrated environments and continue unauthorized activities. No specific target sectors or regions are mentioned in the available headlines.
Affected vendors
Microsoft