Sigma rule: Mimikatz MemSSP Default Log File Creation

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-3f5846d68e5f, updated 2023-02-16T00:00:00.000Z.

SigmaHQ marks this rule as deprecated.

Rule

Title
Mimikatz MemSSP Default Log File Creation
Status
deprecated
Level
critical
Author
David ANDRE
Date
2021/12/20
Modified
2023/02/16
File
deprecated/windows/file_event_win_mimikatz_memssp_log_file.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects Mimikatz MemSSP default log file creation

Log source

product
windows
category
file_event

Detection

selection:
    TargetFilename|endswith: 'mimilsa.log'
condition: selection

False positives (as the rule lists them)

  • Unlikely

Tags

  • attack.credential_access
  • attack.t1003

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/deprecated/windows/file_event_win_mimikatz_memssp_log_file.yml

Sources and licences

  • SigmaHQ

    "Mimikatz MemSSP Default Log File Creation" by David ANDRE (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/deprecated/windows/file_event_win_mimikatz_memssp_log_file.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: Mimikatz MemSSP Default Log File Creation",
entity page, dataset version ref-3f5846d68e5f, updated 2023-02-16T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/034affe8-6170-11ec-844f-0f78aa0c4d66 (accessed 2026-11-03).
Underlying source: SigmaHQ rule 034affe8-6170-11ec-844f-0f78aa0c4d66, 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.