Detect known risky user agents (ASIM Web Session)
This rule is designed to flag web requests that contain a user agent header that is recognized as malicious. It relies on a predefined list of known user agents, which is referenced from a specific CSV file
Detection logic
Detection requirements
- Platform
- ContainersESXiIaaSLinuxmacOSNetwork DevicesWindows
The rule states no platform. This is derived from the 3 ATT&CK techniques 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
- 6a4dbcf8-f5e2-4b33-b34f-2db6487613f0
- Tagged by the source as
- CommandAndControlInitialAccess
Licence
- Published under
- MIT LicenseRead the licence
- Attribution
- Required
- Obtained under
- MITRead the origin licence
Authorship
- Published
- Sep 1, 2026
- Version
- 1