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.

Sigma rule (View on GitHub)

 1title: PUA - Process Hacker Execution
 2id: 811e0002-b13b-4a15-9d00-a613fce66e42
 3related:
 4    - id: 5722dff1-4bdd-4949-86ab-fbaf707e767a
 5      type: similar
 6status: experimental
 7description: |
 8    Detects the execution of Process Hacker based on binary metadata information (Image, Hash, Imphash, etc).
 9    Process Hacker is a tool to view and manipulate processes, kernel options and other low level options.
10    Threat actors abused older vulnerable versions to manipulate system processes.    
11references:
12    - https://processhacker.sourceforge.io/
13    - https://www.crowdstrike.com/blog/falcon-overwatch-report-finds-increase-in-ecrime/
14author: Florian Roth (Nextron Systems)
15date: 2022/10/10
16modified: 2023/12/11
17tags:
18    - attack.defense_evasion
19    - attack.discovery
20    - attack.persistence
21    - attack.privilege_escalation
22    - attack.t1622
23    - attack.t1564
24    - attack.t1543
25logsource:
26    category: process_creation
27    product: windows
28detection:
29    selection_image:
30        - Image|contains: '\ProcessHacker_'
31        - Image|endswith: '\ProcessHacker.exe'
32        - OriginalFileName:
33              - 'ProcessHacker.exe'
34              - 'Process Hacker'
35        - Description: 'Process Hacker'
36        - Product: 'Process Hacker'
37    selection_hashes:
38        Hashes|contains:
39            - 'MD5=68F9B52895F4D34E74112F3129B3B00D'
40            - 'MD5=B365AF317AE730A67C936F21432B9C71'
41            - 'SHA1=A0BDFAC3CE1880B32FF9B696458327CE352E3B1D'
42            - 'SHA1=C5E2018BF7C0F314FED4FD7FE7E69FA2E648359E'
43            - 'SHA256=D4A0FE56316A2C45B9BA9AC1005363309A3EDC7ACF9E4DF64D326A0FF273E80F'
44            - 'SHA256=BD2C2CF0631D881ED382817AFCCE2B093F4E412FFB170A719E2762F250ABFEA4'
45            - 'IMPHASH=3695333C60DEDECDCAFF1590409AA462'
46            - 'IMPHASH=04DE0AD9C37EB7BD52043D2ECAC958DF'
47    selection_hash_values:
48        - md5:
49              - '68f9b52895f4d34e74112f3129b3b00d'
50              - 'b365af317ae730a67c936f21432b9c71'
51        - sha1:
52              - 'c5e2018bf7c0f314fed4fd7fe7e69fa2e648359e'
53              - 'a0bdfac3ce1880b32ff9b696458327ce352e3b1d'
54        - sha256:
55              - 'd4a0fe56316a2c45b9ba9ac1005363309a3edc7acf9e4df64d326a0ff273e80f'
56              - 'bd2c2cf0631d881ed382817afcce2b093f4e412ffb170a719e2762f250abfea4'
57        - Imphash:
58              - '04de0ad9c37eb7bd52043d2ecac958df'
59              - '3695333c60dedecdcaff1590409aa462'
60    condition: 1 of selection_*
61falsepositives:
62    - 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
63level: medium

References

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