Suspicious Start-Process PassThru

 1title: Suspicious Start-Process PassThru
 2id: 0718cd72-f316-4aa2-988f-838ea8533277
 3status: test
 4description: Powershell use PassThru option to start in background
 5references:
 6    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1036.003/T1036.003.md
 7    - https://learn.microsoft.com/en-us/powershell/module/microsoft.powershell.management/start-process?view=powershell-7.6
 8author: frack113
 9date: 2022-01-15
10modified: 2026-05-18
11tags:
12    - attack.stealth
13    - attack.t1036.003
14logsource:
15    product: windows
16    category: ps_script
17    definition: 'Requirements: Script Block Logging must be enabled'
18detection:
19    selection_cmdlet:
20        ScriptBlockText|contains:
21            - 'Start-Process '
22            - 'saps '
23    selection_param:
24        ScriptBlockText|contains|all:
25            - '-PassThru '
26            - '-FilePath '
27    condition: all of selection_*
28falsepositives:
29    - Legitimate PowerShell scripts
30level: medium

References

• https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1036.003/T1036.003.md

  
  Read More

• https://learn.microsoft.com/en-us/powershell/module/microsoft.powershell.management/start-process?view=powershell-7.6

  
  Read More

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