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Create disable_or_modify_service_execution.yml

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keyboardcrunch
2020-12-18 13:39:22 -06:00
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queries/windows/disable_or_modify_service_execution.yml
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title: Disable or Modify Service Execution
description: Detect the modification of service start type for defense evasion. Tuning will be required as many installers and updaters change service states.
author: keyboardcrunch
date: 18/12/2020
modified:
mitre:
tactic: Defense Evasion
technique: T1562
subtechnique: 001
operating_system: windows
query: (RegistryKeyPath RegExp "\bMACHINE\\SYSTEM\\.*ControlSet.*\\Services\\.*\\Start" AND EventType = "Registry Value Modified") AND SrcProcParentName Not In ("services.exe","svchost.exe","smss.exe","WmiPrvSE.exe","wininit.exe","TiWorker.exe","msiexec.exe","OfficeClickToRun.exe") AND SrcProcName Not In ("GoogleUpdate.exe")
false_positives:
- Updater services such as those for Chrome/Edge
- MSI installations
- Explicitly adjusted service states
tags:
references: