Potential File Overwrite Via Sysinternals SDelete

calendar Jan 1, 2024 · attack.impact attack.t1485  ·
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Detects the use of SDelete to erase a file not the free space

Sigma rule (View on GitHub)

 1title: Potential File Overwrite Via Sysinternals SDelete
 2id: a4824fca-976f-4964-b334-0621379e84c4
 3status: test
 4description: Detects the use of SDelete to erase a file not the free space
 5references:
 6    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1485/T1485.md
 7author: frack113
 8date: 2021/06/03
 9modified: 2023/02/28
10tags:
11    - attack.impact
12    - attack.t1485
13logsource:
14    category: process_creation
15    product: windows
16detection:
17    selection:
18        OriginalFileName: sdelete.exe
19    filter:
20        CommandLine|contains:
21            - ' -h'
22            - ' -c'
23            - ' -z'
24            - ' /\?'
25    condition: selection and not filter
26fields:
27    - ComputerName
28    - User
29    - CommandLine
30    - ParentCommandLine
31falsepositives:
32    - Unknown
33level: high

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