Detection rules › Sigma
Mimikatz driver registration (Reg via Sysmon)
Detects scenarios where an attacker installs the Mimikatz driver to bypass the LSA protected mode (RunAsPPL) and dump LSASS process content.
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Privilege Escalation | T1543.003 Create or Modify System Process: Windows Service |
Event coverage
| Provider | Event | Title |
|---|---|---|
| Sysmon | Event ID 12 | RegistryEvent (Object create and delete) |
| Sysmon | Event ID 13 | RegistryEvent (Value Set) |
| Sysmon | Event ID 14 | RegistryEvent (Key and Value Rename) |
Rule body yaml
title: Mimikatz driver registration (Reg via Sysmon)
description: Detects scenarios where an attacker installs the Mimikatz driver to bypass the LSA protected mode (RunAsPPL) and dump LSASS process content.
references:
- https://github.com/mdecrevoisier/EVTX-to-MITRE-Attack/tree/master/TA0003-Persistence/T1543.003-Create%20or%20Modify%20System%20Process-Windows%20Service
- https://posts.specterops.io/mimidrv-in-depth-4d273d19e148?gi=a5033fbeb71d
- https://gorkemkaradeniz.medium.com/defeating-runasppl-utilizing-vulnerable-drivers-to-read-lsass-with-mimikatz-28f4b50b1de5
tags:
- attack.privilege_escalation
- attack.t1543.003
author: mdecrevoisier
status: experimental
logsource:
product: windows
category: registry_event
detection:
selection:
TargetObject|startswith: 'HKLM\System\CurrentControlSet\Services\mimidrv'
condition: selection
falsepositives:
- None
level: high
Stages and Predicates
Stage 0: condition
selectionStage 1: selection
selection:
TargetObject|startswith: 'HKLM\System\CurrentControlSet\Services\mimidrv'
Indicators
Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.
| Field | Kind | Values |
|---|---|---|
TargetObject | starts_with |
|