Sigma rule: HackTool - SharpEvtMute DLL Load

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-e6f6b933c898, updated 2024-11-23T00:00:00.000Z.

Rule

Title
HackTool - SharpEvtMute DLL Load
Status
test
Level
high
Author
Florian Roth (Nextron Systems)
Date
2022-09-07
Modified
2024-11-23
File
rules/windows/image_load/image_load_hktl_sharpevtmute.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects the load of EvtMuteHook.dll, a key component of SharpEvtHook, a tool that tampers with the Windows event logs

Log source

product
windows
category
image_load

Detection

selection:
    Hashes|contains: 'IMPHASH=330768A4F172E10ACB6287B87289D83B'
condition: selection

False positives (as the rule lists them)

  • Other DLLs with the same Imphash

Tags

  • attack.defense-impairment
  • attack.t1685.001

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/image_load/image_load_hktl_sharpevtmute.yml

Sources and licences

  • SigmaHQ

    "HackTool - SharpEvtMute DLL Load" by Florian Roth (Nextron Systems) (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/image_load/image_load_hktl_sharpevtmute.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: HackTool - SharpEvtMute DLL Load",
entity page, dataset version ref-e6f6b933c898, updated 2024-11-23T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/49329257-089d-46e6-af37-4afce4290685 (accessed 2026-11-03).
Underlying source: SigmaHQ rule 49329257-089d-46e6-af37-4afce4290685, 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.