NTFS Alternate Data Stream

calendar Aug 12, 2024 · attack.defense-evasion attack.t1564.004 attack.execution attack.t1059.001  ·
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Detects writing data into NTFS alternate data streams from powershell. Needs Script Block Logging.

Sigma rule (View on GitHub)

 1title: NTFS Alternate Data Stream
 2id: 8c521530-5169-495d-a199-0a3a881ad24e
 3status: test
 4description: Detects writing data into NTFS alternate data streams from powershell. Needs Script Block Logging.
 5references:
 6    - https://web.archive.org/web/20220614030603/http://www.powertheshell.com/ntfsstreams/
 7    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1564.004/T1564.004.md
 8author: Sami Ruohonen
 9date: 2018-07-24
10modified: 2022-12-25
11tags:
12    - attack.defense-evasion
13    - attack.t1564.004
14    - attack.execution
15    - attack.t1059.001
16logsource:
17    product: windows
18    category: ps_script
19    definition: 'Requirements: Script Block Logging must be enabled'
20detection:
21    selection_content:
22        ScriptBlockText|contains:
23            - set-content
24            - add-content
25    selection_stream:
26        ScriptBlockText|contains: '-stream'
27    condition: all of selection*
28falsepositives:
29    - Unknown
30level: high

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