sigmahighHunting

HackTool - SharpEvtMute Execution

Detects the use of SharpEvtHook, a tool that tampers with the Windows event logs

MITRE ATT&CK

defense-evasion

Detection Query

selection:
  - Image|endswith: \SharpEvtMute.exe
  - Description: SharpEvtMute
  - CommandLine|contains:
      - '--Filter "rule '
      - --Encoded --Filter \"
condition: selection

Author

Florian Roth (Nextron Systems)

Created

2022-09-07

Data Sources

windowsProcess Creation Events

Platforms

windows

References

https://github.com/bats3c/EvtMute

Tags

attack.defense-evasionattack.t1562.002

Raw Content

title: HackTool - SharpEvtMute Execution
id: bedfc8ad-d1c7-4e37-a20e-e2b0dbee759c
related:
    - id: 49329257-089d-46e6-af37-4afce4290685 # DLL load
      type: similar
status: test
description: Detects the use of SharpEvtHook, a tool that tampers with the Windows event logs
references:
    - https://github.com/bats3c/EvtMute
author: Florian Roth (Nextron Systems)
date: 2022-09-07
modified: 2023-02-14
tags:
    - attack.defense-evasion
    - attack.t1562.002
logsource:
    product: windows
    category: process_creation
detection:
    selection:
        - Image|endswith: '\SharpEvtMute.exe'
        - Description: 'SharpEvtMute'
        - CommandLine|contains:
              - '--Filter "rule '
              - '--Encoded --Filter \"'
    condition: selection
falsepositives:
    - Unknown
level: high