Sigma rule: Wow6432Node Classes Autorun Keys Modification

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-b15ac309b89d, updated 2023-08-17T00:00:00.000Z.

Rule

Title
Wow6432Node Classes Autorun Keys Modification
Status
test
Level
medium
Author
Victor Sergeev, Daniil Yugoslavskiy, Gleb Sukhodolskiy, Timur Zinniatullin, oscd.community, Tim Shelton, frack113 (split)
Date
2019-10-25
Modified
2023-08-17
File
rules/windows/registry/registry_set/registry_set_asep_reg_keys_modification_wow6432node_classes.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects modification of autostart extensibility point (ASEP) in registry.

Log source

product
windows
category
registry_set

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

False positives (as the rule lists them)

  • Legitimate software automatically (mostly, during installation) sets up autorun keys for legitimate reason
  • Legitimate administrator sets up autorun keys for legitimate reason

Tags

  • attack.privilege-escalation
  • attack.persistence
  • attack.t1547.001

MITRE ATT&CK ids this rule names

Related rules

References

Read on 2026-11-03T00:58:21.399Z under licence sigma-drl-1.1@d5f4c36a from https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/registry/registry_set/registry_set_asep_reg_keys_modification_wow6432node_classes.yml

Sources and licences

  • SigmaHQ

    "Wow6432Node Classes Autorun Keys Modification" by Victor Sergeev, Daniil Yugoslavskiy, Gleb Sukhodolskiy, Timur Zinniatullin, oscd.community, Tim Shelton, frack113 (split) (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/registry/registry_set/registry_set_asep_reg_keys_modification_wow6432node_classes.yml.
    Licensed under the Detection Rule License (DRL) 1.1: https://github.com/SigmaHQ/Detection-Rule-License

    Detection Rule License (DRL) 1.1

Cite this page

Dragons Eye Ransomware Tracker, "Sigma rule: Wow6432Node Classes Autorun Keys Modification",
entity page, dataset version ref-b15ac309b89d, updated 2023-08-17T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/18f2065c-d36c-464a-a748-bcf909acb2e3 (accessed 2026-11-03).
Underlying source: SigmaHQ rule 18f2065c-d36c-464a-a748-bcf909acb2e3, commit ccbb0369507f796db0b0ae6854c8a2be471b9d84.

Pages change. The dataset version identifies the data, but no archive of old versions is kept, so this citation cannot be replayed later.