Detectionhightest
Windows Defender Definition Files Removed
Adversaries may disable security tools to avoid possible detection of their tools and activities by removing Windows Defender Definition Files
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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_img:
- Image|endswith: '\MpCmdRun.exe'
- OriginalFileName: MpCmdRun.exe
selection_cli:
CommandLine|contains|all:
- ' -RemoveDefinitions'
- ' -All'
condition: all of selection_*False Positives
Unknown
False positive likelihood has not been assessed. Additional context may be needed during triage.
MITRE ATT&CK
Tactics
Sub-techniques
Rule Metadata
Rule ID
9719a8aa-401c-41af-8108-ced7ec9cd75c
Status
test
Level
high
Type
Detection
Created
Wed Jul 07
Modified
Tue Jul 18
Author
Path
rules/windows/process_creation/proc_creation_win_mpcmdrun_remove_windows_defender_definition.yml
Raw Tags
attack.defense-evasionattack.t1562.001