Creation Exe for Service with Unquoted Path

Adversaries may execute their own malicious payloads by hijacking vulnerable file path references. Adversaries can take advantage of paths that lack surrounding quotations by placing an executable in a higher level directory within the path, so that Windows will choose the adversary's executable to launch.

Sigma rule (View on GitHub)

 1title: Creation Exe for Service with Unquoted Path
 2id: 8c3c76ca-8f8b-4b1d-aaf3-81aebcd367c9
 3status: test
 4description: |
 5    Adversaries may execute their own malicious payloads by hijacking vulnerable file path references.
 6    Adversaries can take advantage of paths that lack surrounding quotations by placing an executable in a higher level directory within the path, so that Windows will choose the adversary's executable to launch.    
 7references:
 8    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1574.009/T1574.009.md
 9author: frack113
10date: 2021-12-30
11tags:
12    - attack.privilege-escalation
13    - attack.persistence
14    - attack.t1547.009
15logsource:
16    product: windows
17    category: file_event
18detection:
19    selection:
20        # Feel free to add more
21        TargetFilename: 'C:\program.exe'
22    condition: selection
23falsepositives:
24    - Unknown
25level: high

References

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