PUA - Process Hacker Driver Load

calendar Oct 23, 2025 · attack.persistence attack.privilege-escalation cve.2021-21551 attack.t1543  ·
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Detects driver load of the Process Hacker tool

Sigma rule (View on GitHub)

 1title: PUA - Process Hacker Driver Load
 2id: 67add051-9ee7-4ad3-93ba-42935615ae8d
 3related:
 4    - id: 10cb6535-b31d-4512-9962-513dcbc42cc1
 5      type: similar
 6status: test
 7description: Detects driver load of the Process Hacker tool
 8references:
 9    - https://processhacker.sourceforge.io/
10author: Florian Roth (Nextron Systems)
11date: 2022-11-16
12modified: 2024-11-23
13tags:
14    - attack.persistence
15    - attack.privilege-escalation
16    - cve.2021-21551
17    - attack.t1543
18logsource:
19    category: driver_load
20    product: windows
21detection:
22    selection:
23        - ImageLoaded|endswith: '\kprocesshacker.sys'
24        - Hashes|contains:
25              - 'IMPHASH=821D74031D3F625BCBD0DF08B70F1E77'
26              - 'IMPHASH=F86759BB4DE4320918615DC06E998A39'
27              - 'IMPHASH=0A64EEB85419257D0CE32BD5D55C3A18'
28              - 'IMPHASH=6E7B34DFC017700B1517B230DF6FF0D0'
29    condition: selection
30falsepositives:
31    - Legitimate use of process hacker or system informer by developers or system administrators
32level: high

References

  • System Informer

    System Informer, A free, powerful, multi-purpose tool that helps you monitor system resources, debug software and detect malware.


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