Sigma rule: Potential Credential Dumping Attempt Via PowerShell

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-ad6c93817720, updated 2023-11-28T00:00:00.000Z.

Rule

Title
Potential Credential Dumping Attempt Via PowerShell
Status
test
Level
medium
Author
oscd.community, Natalia Shornikova
Date
2020-10-06
Modified
2023-11-28
File
rules-threat-hunting/windows/process_access/proc_access_win_lsass_powershell_access.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects a PowerShell process requesting access to "lsass.exe", which can be indicative of potential credential dumping attempts

Log source

product
windows
category
process_access

Detection

selection:
    SourceImage|endswith:
        - '\powershell.exe'
        - '\pwsh.exe'
    TargetImage|endswith: '\lsass.exe'
condition: selection

False positives (as the rule lists them)

  • Unknown

Tags

  • attack.credential-access
  • attack.t1003.001
  • detection.threat-hunting

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/rules-threat-hunting/windows/process_access/proc_access_win_lsass_powershell_access.yml

Sources and licences

  • SigmaHQ

    "Potential Credential Dumping Attempt Via PowerShell" by oscd.community, Natalia Shornikova (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules-threat-hunting/windows/process_access/proc_access_win_lsass_powershell_access.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 Credential Dumping Attempt Via PowerShell",
entity page, dataset version ref-ad6c93817720, updated 2023-11-28T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/0f920ebe-7aea-4c54-b202-9aa0c609cfe5 (accessed 2026-11-03).
Underlying source: SigmaHQ rule 0f920ebe-7aea-4c54-b202-9aa0c609cfe5, 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.