Potential Secure Deletion with SDelete

Detects files that have extensions commonly seen while SDelete is used to wipe files.

title: Potential Secure Deletion with SDelete
id: 39a80702-d7ca-4a83-b776-525b1f86a36d
status: test
description: Detects files that have extensions commonly seen while SDelete is used to wipe files.
references:
    - https://jpcertcc.github.io/ToolAnalysisResultSheet/details/sdelete.htm
    - https://www.jpcert.or.jp/english/pub/sr/ir_research.html
    - https://learn.microsoft.com/en-gb/sysinternals/downloads/sdelete
author: Thomas Patzke
date: 2017-06-14
modified: 2024-12-13
tags:
    - attack.impact
    - attack.stealth
    - attack.defense-impairment
    - attack.t1070.004
    - attack.t1027.005
    - attack.t1485
    - attack.t1553.002
    - attack.s0195
logsource:
    product: windows
    service: security
detection:
    selection:
        EventID:
            - 4656
            - 4663
            - 4658
        ObjectName|endswith:
            - '.AAA'
            - '.ZZZ'
    condition: selection
falsepositives:
    - Legitimate usage of SDelete
    - Files that are interacted with that have these extensions legitimately
level: medium

• T1027.005Indicator Removal from Tools
• T1070.004File Deletion
• T1485Data Destruction
• T1553.002Code Signing

• S0195SDelete

• https://jpcertcc.github.io/ToolAnalysisResultSheet/details/sdelete.htm↗
• https://www.jpcert.or.jp/english/pub/sr/ir_research.html↗
• https://learn.microsoft.com/en-gb/sysinternals/downloads/sdelete↗