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35 lines
1.1 KiB
YAML
35 lines
1.1 KiB
YAML
title: Bypass UAC via CMSTP
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id: e66779cc-383e-4224-a3a4-267eeb585c40
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description: Detect child processes of automatically elevated instances of Microsoft Connection Manager Profile Installer (cmstp.exe).
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status: experimental
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author: E.M. Anhaus (originally from Atomic Blue Detections, Endgame), oscd.community
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date: 2019/10/24
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modified: 2020/08/29
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references:
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- https://eqllib.readthedocs.io/en/latest/analytics/e584f1a1-c303-4885-8a66-21360c90995b.html
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- https://github.com/redcanaryco/atomic-red-team/blob/master/atomics/T1191/T1191.md
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tags:
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- attack.privilege_escalation
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- attack.defense_evasion
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- attack.t1548.002
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- attack.t1218.003
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- attack.t1191 # an old one
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- attack.t1088 # an old one
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logsource:
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category: process_creation
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product: windows
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detection:
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selection:
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Image|endswith: '\cmstp.exe'
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CommandLine|contains:
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- '/s'
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- '/au'
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condition: selection
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fields:
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- ComputerName
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- User
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- CommandLine
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falsepositives:
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- Legitimate use of cmstp.exe utility by legitimate user
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level: high
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