Powershell Store File In Alternate Data Stream

 1title: Powershell Store File In Alternate Data Stream
 2id: a699b30e-d010-46c8-bbd1-ee2e26765fe9
 3status: test
 4description: Storing files in Alternate Data Stream (ADS) similar to Astaroth malware.
 5references:
 6    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1564.004/T1564.004.md
 7author: frack113
 8date: 2021/09/02
 9modified: 2022/12/25
10tags:
11    - attack.defense_evasion
12    - attack.t1564.004
13logsource:
14    product: windows
15    category: ps_script
16    definition: 'Requirements: Script Block Logging must be enabled'
17detection:
18    selection_compspec:
19        ScriptBlockText|contains|all:
20            - 'Start-Process'
21            - '-FilePath "$env:comspec" '
22            - '-ArgumentList '
23            - '>'
24    condition: selection_compspec
25falsepositives:
26    - Unknown
27level: medium