Potential DLL Sideloading Of MpSvc.DLL — Sigma Rule

Rule metadata and linked tags

Author: Nasreddine Bencherchali (Nextron Systems), Wietze Beukema. Source status: test; severity: medium. Source dates: 2024-07-11 / not supplied.

{
  "product": "windows",
  "category": "image_load"
}

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: d46437e2909f31f4e7300afb1c979a7fdfd28cc8bcbd30026c2a0591659831d7

Detection logic

Original source YAML. Source-tag agreement is not proof of complete semantic coverage. This rule has not been compiled for a SIEM backend or validated against live telemetry here.

title: Potential DLL Sideloading Of MpSvc.DLL
id: 5ba243e5-8165-4cf7-8c69-e1d3669654c1
status: test
description: Detects potential DLL sideloading of "MpSvc.dll".
references:
    - https://hijacklibs.net/entries/microsoft/built-in/mpsvc.html
author: Nasreddine Bencherchali (Nextron Systems), Wietze Beukema
date: 2024-07-11
tags:
    - attack.privilege-escalation
    - attack.persistence
    - attack.execution
    - attack.stealth
    - attack.t1574.001
logsource:
    product: windows
    category: image_load
detection:
    selection:
        ImageLoaded|endswith: '\MpSvc.dll'
    filter_main_generic:
        ImageLoaded|startswith:
            - 'C:\Program Files\Windows Defender\'
            - 'C:\ProgramData\Microsoft\Windows Defender\Platform\'
            - 'C:\Windows\WinSxS\'
    condition: selection and not 1 of filter_main_*
falsepositives:
    - Legitimate applications loading their own versions of the DLL mentioned in this rule.
level: medium

Original YAML and metadata in JSON

False positives

• Legitimate applications loading their own versions of the DLL mentioned in this rule.

Source references

• https://hijacklibs.net/entries/microsoft/built-in/mpsvc.html