Sigma rule: Trickbot Malware Activity

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-bb0a34b3a504, updated 2021-11-27T00:00:00.000Z.

Rule

Title
Trickbot Malware Activity
Status
stable
Level
high
Author
Florian Roth (Nextron Systems)
Date
2020-11-26
Modified
2021-11-27
File
rules-emerging-threats/2020/Malware/Trickbot/proc_creation_win_malware_trickbot_wermgr.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects Trickbot malware process tree pattern in which "rundll32.exe" is a parent of "wermgr.exe"

Log source

product
windows
category
process_creation

Detection

selection:
    Image|endswith: '\wermgr.exe'
    ParentImage|endswith: '\rundll32.exe'
    ParentCommandLine|contains: 'DllRegisterServer'
condition: selection

False positives (as the rule lists them)

  • Unknown

Tags

  • attack.execution
  • attack.t1559
  • detection.emerging-threats

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-emerging-threats/2020/Malware/Trickbot/proc_creation_win_malware_trickbot_wermgr.yml

Sources and licences

  • SigmaHQ

    "Trickbot Malware Activity" by Florian Roth (Nextron Systems) (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules-emerging-threats/2020/Malware/Trickbot/proc_creation_win_malware_trickbot_wermgr.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: Trickbot Malware Activity",
entity page, dataset version ref-bb0a34b3a504, updated 2021-11-27T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/58bf96d9-ff5f-44bd-8dcc-1c4f79bf3a27 (accessed 2026-11-03).
Underlying source: SigmaHQ rule 58bf96d9-ff5f-44bd-8dcc-1c4f79bf3a27, 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.