Detection rules › Sigma
HackTool - SharpEvtMute DLL Load
Detects the load of EvtMuteHook.dll, a key component of SharpEvtHook, a tool that tampers with the Windows event logs
Known false positives
- Other DLLs with the same Imphash
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Defense Impairment |
Telemetry coverage
| Provider | Record / event type |
|---|---|
| Sysmon | Event ID 7: Image loaded |
Rule body
title: HackTool - SharpEvtMute DLL Load
id: 49329257-089d-46e6-af37-4afce4290685
related:
- id: bedfc8ad-d1c7-4e37-a20e-e2b0dbee759c # Process Creation
type: similar
status: test
description: Detects the load of EvtMuteHook.dll, a key component of SharpEvtHook, a tool that tampers with the Windows event logs
references:
- https://github.com/bats3c/EvtMute
author: Florian Roth (Nextron Systems)
date: 2022-09-07
modified: 2024-11-23
tags:
- attack.defense-impairment
- attack.t1685.001
logsource:
category: image_load
product: windows
detection:
selection:
Hashes|contains: 'IMPHASH=330768A4F172E10ACB6287B87289D83B'
condition: selection
falsepositives:
- Other DLLs with the same Imphash
level: high
Stages and Predicates
Stage 0: condition
selectionStage 1: selection
selection:
Hashes|contains: 'IMPHASH=330768A4F172E10ACB6287B87289D83B'
Indicators
These rows show field, operator, and value matches.
| Field | Kind | Values | Search |
|---|---|---|---|
Hashes | match |
| field:"Hashes" kind:match value:"IMPHASH=330768A4F172E10ACB6287B87289D83B" |