Suspicious File Deleted Through Sysinternals SDelete (via file_delete)

title: Suspicious File Deleted Through Sysinternals SDelete (via file_delete)
id: 3bbf00bb-2ea6-5190-a4af-162ec2a953f4
status: stable
description: This rule detects the deletion of files by the Sysinternals SDelete utility. It looks for the common name pattern used to rename files.
references:
    - https://attack.mitre.org/techniques/T1070/004/
    - https://github.com/OTRF/detection-hackathon-apt29/issues/9
    - https://github.com/OTRF/ThreatHunter-Playbook/blob/2d4257f630f4c9770f78d0c1df059f891ffc3fec/docs/evals/apt29/detections/4.B.4_83D62033-105A-4A02-8B75-DAB52D8D51EC.md
author: Huntrule Team
date: 2026-05-25
tags:
    - attack.stealth
    - attack.t1070.004
logsource:
    product: windows
    category: file_delete
detection:
    selection:
        TargetFilename|endswith:
            - '.AAA'
            - '.ZZZ'
    filter_wireshark:
        TargetFilename|endswith: '\Wireshark\radius\dictionary.alcatel-lucent.aaa'
    condition: selection and not 1 of filter_*
falsepositives:
    - Unknown
level: medium