Sigma Rule Library

PUA - Process Hacker Execution

Detects the execution of Process Hacker based on binary metadata information (Image, Hash, Imphash, etc). Process Hacker is a tool to view and manipulate processes, kernel options and other low level options. Threat actors abused older vulnerable versions to manipulate system processes.

View on GitHubOpen raw file

Detection logic

selection

- Image|contains: \ProcessHacker_
- Image|endswith: \ProcessHacker.exe
- OriginalFileName:
    - ProcessHacker.exe
    - Process Hacker
- Description: Process Hacker
- Product: Process Hacker
- Hashes|contains:
    - MD5=68F9B52895F4D34E74112F3129B3B00D
    - MD5=B365AF317AE730A67C936F21432B9C71
    - SHA1=A0BDFAC3CE1880B32FF9B696458327CE352E3B1D
    - SHA1=C5E2018BF7C0F314FED4FD7FE7E69FA2E648359E
    - SHA256=D4A0FE56316A2C45B9BA9AC1005363309A3EDC7ACF9E4DF64D326A0FF273E80F
    - SHA256=BD2C2CF0631D881ED382817AFCCE2B093F4E412FFB170A719E2762F250ABFEA4
    - IMPHASH=3695333C60DEDECDCAFF1590409AA462
    - IMPHASH=04DE0AD9C37EB7BD52043D2ECAC958DF

Condition

selection

Raw YAML

title: PUA - Process Hacker Execution
id: 811e0002-b13b-4a15-9d00-a613fce66e42
related:
    - id: 5722dff1-4bdd-4949-86ab-fbaf707e767a
      type: similar
status: test
description: |
    Detects the execution of Process Hacker based on binary metadata information (Image, Hash, Imphash, etc).
    Process Hacker is a tool to view and manipulate processes, kernel options and other low level options.
    Threat actors abused older vulnerable versions to manipulate system processes.
references:
    - https://processhacker.sourceforge.io/
    - https://www.crowdstrike.com/blog/falcon-overwatch-report-finds-increase-in-ecrime/
author: Florian Roth (Nextron Systems)
date: 2022-10-10
modified: 2024-11-23
tags:
    - attack.discovery
    - attack.persistence
    - attack.privilege-escalation
    - attack.stealth
    - attack.t1622
    - attack.t1564
    - attack.t1543
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        - Image|contains: '\ProcessHacker_'
        - Image|endswith: '\ProcessHacker.exe'
        - OriginalFileName:
              - 'ProcessHacker.exe'
              - 'Process Hacker'
        - Description: 'Process Hacker'
        - Product: 'Process Hacker'
        - Hashes|contains:
              - 'MD5=68F9B52895F4D34E74112F3129B3B00D'
              - 'MD5=B365AF317AE730A67C936F21432B9C71'
              - 'SHA1=A0BDFAC3CE1880B32FF9B696458327CE352E3B1D'
              - 'SHA1=C5E2018BF7C0F314FED4FD7FE7E69FA2E648359E'
              - 'SHA256=D4A0FE56316A2C45B9BA9AC1005363309A3EDC7ACF9E4DF64D326A0FF273E80F'
              - 'SHA256=BD2C2CF0631D881ED382817AFCCE2B093F4E412FFB170A719E2762F250ABFEA4'
              - 'IMPHASH=3695333C60DEDECDCAFF1590409AA462'
              - 'IMPHASH=04DE0AD9C37EB7BD52043D2ECAC958DF'
    condition: selection
falsepositives:
    - While sometimes 'Process Hacker is used by legitimate administrators, the execution of Process Hacker must be investigated and allowed on a case by case basis
level: medium

False positives

  • While sometimes 'Process Hacker is used by legitimate administrators, the execution of Process Hacker must be investigated and allowed on a case by case basis

References

Similar rules