File Deleted Via Sysinternals SDelete

calendar Feb 28, 2025 · attack.defense-evasion attack.t1070.004  ·
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Detects the deletion of files by the Sysinternals SDelete utility. It looks for the common name pattern used to rename files.

Sigma rule (View on GitHub)

 1title: File Deleted Via Sysinternals SDelete
 2id: 6ddab845-b1b8-49c2-bbf7-1a11967f64bc
 3status: test
 4description: Detects the deletion of files by the Sysinternals SDelete utility. It looks for the common name pattern used to rename files.
 5references:
 6    - https://github.com/OTRF/detection-hackathon-apt29/issues/9
 7    - https://github.com/OTRF/ThreatHunter-Playbook/blob/2d4257f630f4c9770f78d0c1df059f891ffc3fec/docs/evals/apt29/detections/4.B.4_83D62033-105A-4A02-8B75-DAB52D8D51EC.md
 8author: Roberto Rodriguez (Cyb3rWard0g), OTR (Open Threat Research)
 9date: 2020-05-02
10modified: 2023-02-15
11tags:
12    - attack.defense-evasion
13    - attack.t1070.004
14logsource:
15    product: windows
16    category: file_delete
17detection:
18    selection:
19        TargetFilename|endswith:
20            - '.AAA'
21            - '.ZZZ'
22    filter_wireshark:
23        TargetFilename|endswith: '\Wireshark\radius\dictionary.alcatel-lucent.aaa'
24    condition: selection and not 1 of filter_*
25falsepositives:
26    - Legitimate usage
27level: medium
yaml

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