SigmaHQ/rules/windows/process_creation/sysmon_cmstp_execution_by_creation.yml
2021-07-02 11:01:07 +02:00

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title: CMSTP Execution Process Creation
id: 7d4cdc5a-0076-40ca-aac8-f7e714570e47
status: stable
description: Detects various indicators of Microsoft Connection Manager Profile Installer execution
tags:
- attack.defense_evasion
- attack.execution
- attack.t1191 # an old one
- attack.t1218.003
- attack.g0069
- car.2019-04-001
author: Nik Seetharaman
date: 2018/07/16
modified: 2020/12/23
references:
- https://web.archive.org/web/20190720093911/http://www.endurant.io/cmstp/detecting-cmstp-enabled-code-execution-and-uac-bypass-with-sysmon/
fields:
- CommandLine
- ParentCommandLine
- Details
falsepositives:
- Legitimate CMSTP use (unlikely in modern enterprise environments)
level: high
logsource:
category: process_creation
product: windows
detection:
# CMSTP Spawning Child Process
selection:
ParentImage|endswith: '\cmstp.exe'
condition: selection