Windows Defender Definition Files Removed

Title: Windows Defender Definition Files Removed
Status: test
Description:Adversaries may disable security tools to avoid possible detection of their tools and activities by removing Windows Defender Definition Files
References:
  -https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1562.001/T1562.001.md
  -https://unit42.paloaltonetworks.com/unit42-gorgon-group-slithering-nation-state-cybercrime/
Author: frack113
Date: 2021-07-07
modified:2023-07-18
Tags:

• -'attack.defense-impairment'
• -'attack.t1685'

Logsource:

• category: process_creation
• product: windows

Detection:
  selection_img:
Image|endswith:'\MpCmdRun.exe' OriginalFileName:'MpCmdRun.exe'   selection_cli:
    CommandLine|contains|all:
      -' -RemoveDefinitions'
      -' -All'

  condition:all of selection_*
Falsepositives:
  -Unknown
Level: high