UnclassifiedIdeologyAdvanced sophistication
UAT-9921
UAT-9921 is a threat actor group with an ideological motive, tracked by Brandefense. It uses 15 MITRE ATT&CK techniques.
- Techniques
- 15
- Exploited CVEs
- No CVE data
- Record updated
About UAT-9921.
The actor demonstrates knowledge of the Chinese language based on code comments and planning within the framework. They utilize advanced techniques for initial access, persistence, and network evasion, focusing on server-side and critical infrastructure compromise.
Last updated Jul 26, 2026. Compiled by Brandefense technologies from structured threat intelligence and reviewed by Brandefense analysts. Techniques follow the MITRE ATT&CK framework.