Bypass UAC via CMSTP
Detect commandline usage of Microsoft Connection Manager Profile Installer (cmstp.exe) to install specially formatted local .INF files
Detection logic
Detection requirements
- Platform
- Windows
The rule states no platform. This is derived from the 2 ATT&CK techniques it maps to.
- Log source product
- windows
- Log source category
- process_creation
Known benign triggers
- Legitimate use of cmstp.exe utility by legitimate user
MITRE ATT&CK mappings
0 exclusive techniques.This is coverage no other published rule has; it is not this rule's total technique count.
References
| Reference | Cited by |
|---|---|
| eqllib.readthedocs.io/en/latest/analytics/e584f1a1-c303-4885-8a66-21360c90995b.html | Only this detection cites it |
| github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1218.003/T1218.003.md | Only this detection cites it |
| lolbas-project.github.io/lolbas/Binaries/Cmstp/ | 2 |
From the source
- At source
- Open at source
- Upstream identifier
- e66779cc-383e-4224-a3a4-267eeb585c40
- Tagged by the source as
- attack.privilege-escalationattack.stealth
Licence
- Published under
- Detection Rule License 1.1Read the licence
- Attribution
- Required
Authorship
- Published
- Aug 26, 2026
- Version
- 1