Sigma rule: Potential Invoke-Mimikatz PowerShell Script

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-3510f915fbf4, updated 2022-09-28T00:00:00.000Z.

Rule

Title
Potential Invoke-Mimikatz PowerShell Script
Status
test
Level
high
Author
Tim Rauch, Elastic (idea)
Date
2022-09-28
File
rules/windows/powershell/powershell_script/posh_ps_potential_invoke_mimikatz.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects Invoke-Mimikatz PowerShell script and alike. Mimikatz is a credential dumper capable of obtaining plaintext Windows account logins and passwords.

Log source

product
windows
category
ps_script

Detection

selection_1:
    ScriptBlockText|contains|all:
        - 'DumpCreds'
        - 'DumpCerts'
selection_2:
    ScriptBlockText|contains: 'sekurlsa::logonpasswords'
selection_3:
    ScriptBlockText|contains|all:
        - 'crypto::certificates'
        - 'CERT_SYSTEM_STORE_LOCAL_MACHINE'
condition: 1 of selection*

False positives (as the rule lists them)

  • Mimikatz can be useful for testing the security of networks

Tags

  • attack.credential-access
  • attack.t1003

MITRE ATT&CK ids this rule names

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/powershell/powershell_script/posh_ps_potential_invoke_mimikatz.yml

Sources and licences

  • SigmaHQ

    "Potential Invoke-Mimikatz PowerShell Script" by Tim Rauch, Elastic (idea) (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/powershell/powershell_script/posh_ps_potential_invoke_mimikatz.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: Potential Invoke-Mimikatz PowerShell Script",
entity page, dataset version ref-3510f915fbf4, updated 2022-09-28T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/189e3b02-82b2-4b90-9662-411eb64486d4 (accessed 2026-11-03).
Underlying source: SigmaHQ rule 189e3b02-82b2-4b90-9662-411eb64486d4, 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.