Silk Typhoon Suspicious UM Service Error
This query looks for errors that may indicate that an attacker is attempting to exploit a vulnerability in the service. Reference: https://www.microsoft.com/security/blog/2021/03/02/hafnium-targeting-exchange-servers/
Detection logic
Detection requirements
- Platform
- ContainersESXiIaaSLinuxmacOSNetwork DevicesWindows
The rule states no platform. This is derived from the ATT&CK technique it maps to.
MITRE ATT&CK mappings
0 exclusive techniques.This is coverage no other published rule has; it is not this rule's total technique count.
No references are available for this detection.
From the source
- At source
- Open at source
- Upstream identifier
- 0625fcce-6d52-491e-8c68-1d9b801d25b9
- Tagged by the source as
- InitialAccessSecurity - Threat Intelligence
Licence
- Published under
- MIT LicenseRead the licence
- Attribution
- Required
- Obtained under
- MITRead the origin licence
Authorship
- Written by
- Published
- Sep 2, 2026
- Version
- 1