Potential Winnti Dropper Activity

Description

Detects files dropped by Winnti as described in RedMimicry Winnti playbook

Query · sigma

selection:
  TargetFilename|endswith:
  - \gthread-3.6.dll
  - \sigcmm-2.4.dll
  - \Windows\Temp\tmp.bat
condition: selection

Known false positives

  • Unknown
Raw source Potential Winnti Dropper Activity · Sigma
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Published by SigmaHQ/sigma ↗, licensed under Detection Rule License 1.1 ↗. Reproduced here unmodified. 
title: Potential Winnti Dropper Activity
id: 130c9e58-28ac-4f83-8574-0a4cc913b97e
status: test
description: Detects files dropped by Winnti as described in RedMimicry Winnti playbook
references:
    - https://redmimicry.com/posts/redmimicry-winnti/#dropper
author: Alexander Rausch
date: 2020-06-24
modified: 2023-01-05
tags:
    - attack.stealth
    - attack.t1027
logsource:
    product: windows
    category: file_event
detection:
    selection:
        TargetFilename|endswith:
            - '\gthread-3.6.dll'
            - '\sigcmm-2.4.dll'
            - '\Windows\Temp\tmp.bat'
    condition: selection
falsepositives:
    - Unknown
level: high

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