Detectionhightest
Tamper Windows Defender Remove-MpPreference
Detects attempts to remove Windows Defender configurations using the 'MpPreference' cmdlet
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Nasreddine Bencherchali (Nextron Systems)Created Fri Aug 0507e3cb2c-0608-410d-be4b-1511cb1a0448windows
Log Source
WindowsProcess Creation
ProductWindows← raw: windows
CategoryProcess Creation← raw: process_creation
Events generated when a new process is spawned on the system. Covers command-line arguments, parent/child relationships, and process metadata.
Detection Logic
Detection Logic2 selectors
detection:
selection_remove:
CommandLine|contains: 'Remove-MpPreference'
selection_tamper:
CommandLine|contains:
- '-ControlledFolderAccessProtectedFolders '
- '-AttackSurfaceReductionRules_Ids '
- '-AttackSurfaceReductionRules_Actions '
- '-CheckForSignaturesBeforeRunningScan '
condition: all of selection_*False Positives
Legitimate PowerShell scripts
MITRE ATT&CK
Tactics
Sub-techniques
Rule Metadata
Rule ID
07e3cb2c-0608-410d-be4b-1511cb1a0448
Status
test
Level
high
Type
Detection
Created
Fri Aug 05
Path
rules/windows/process_creation/proc_creation_win_powershell_remove_mppreference.yml
Raw Tags
attack.defense-evasionattack.t1562.001