- Published
- Source
- Security Affairs
- Filed under
- Nation-state, Microsoft, Attacks
Cisco Talos details UAT-11587, a China-linked group using the Antino backdoor and Microsoft 365 as cover to spy on Asian governments. Cisco Talos has been tracking a cluster of espionage activity since September 2025 that it calls UAT-11587, and by July 2026 the group had hit at least 16 government and policy organizations across eight…
Practical steps for any organisation
- Patch quickly, starting with anything facing the internet.
- Use multi-factor authentication everywhere it is offered.
- Keep tested, offline backups – and a plan for the day you need them.
More helpNCSC: 10 Steps to Cyber Security (opens in a new tab)NCSC: incident management (opens in a new tab)
Defender’s notebook
The attacker technique behind this story, in MITRE’s terms – and what to check in your own estate.
Application Layer Protocol
Command and ControlWhat a defender checks
- Hunt for beaconing: regular connections to rare domains.
- Check DNS logs for newly registered and look-alike domains.
- Block known C2 infrastructure from your threat intelligence.
Build the skillBlue Team Engineer · Network Security Engineering
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