Suspicious Wow6432Node Classes Autorun Keys Change (via registry_set)

This rule detects modification of autostart extensibility point (ASEP) in registry.

SigmamediumWindowsv1
sigma
title: Suspicious Wow6432Node Classes Autorun Keys Change (via registry_set)
id: e6037fb7-b8ef-5708-92a2-181ef15d1298
status: stable
description: This rule detects modification of autostart extensibility point (ASEP) in registry.
references:
    - https://attack.mitre.org/techniques/T1547/001/
    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1547.001/T1547.001.md
    - https://learn.microsoft.com/en-us/sysinternals/downloads/autoruns
    - https://gist.github.com/GlebSukhodolskiy/0fc5fa5f482903064b448890db1eaf9d
author: Huntrule Team
date: 2026-06-09
tags:
    - attack.privilege-escalation
    - attack.persistence
    - attack.t1547.001
logsource:
    category: registry_set
    product: windows
detection:
    wow_classes_base:
        TargetObject|contains: '\Software\Wow6432Node\Classes'
    wow_classes:
        TargetObject|contains:
            - '\Folder\ShellEx\ExtShellFolderViews'
            - '\Folder\ShellEx\DragDropHandlers'
            - '\Folder\ShellEx\ColumnHandlers'
            - '\Directory\Shellex\DragDropHandlers'
            - '\Directory\Shellex\CopyHookHandlers'
            - '\CLSID\{AC757296-3522-4E11-9862-C17BE5A1767E}\Instance'
            - '\CLSID\{ABE3B9A4-257D-4B97-BD1A-294AF496222E}\Instance'
            - '\CLSID\{7ED96837-96F0-4812-B211-F13C24117ED3}\Instance'
            - '\CLSID\{083863F1-70DE-11d0-BD40-00A0C911CE86}\Instance'
            - '\AllFileSystemObjects\ShellEx\DragDropHandlers'
            - '\ShellEx\PropertySheetHandlers'
            - '\ShellEx\ContextMenuHandlers'
    filter:
        Details: '(Empty)'
    condition: wow_classes_base and wow_classes and not filter
falsepositives:
    - Unknown
level: medium

Known false positives

  • Unknown

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.