Sigma rule: Accessing WinAPI in PowerShell for Credentials Dumping

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-08fadf77094a, updated 2022-12-18T00:00:00.000Z.

SigmaHQ marks this rule as deprecated.

Rule

Title: Accessing WinAPI in PowerShell for Credentials Dumping
Status: deprecated
Level: high
Author: oscd.community, Natalia Shornikova
Date: 2020/10/06
Modified: 2022/12/18
File: deprecated/windows/sysmon_accessing_winapi_in_powershell_credentials_dumping.yml
Commit: ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects Accessing to lsass.exe by Powershell

Log source

product: windows
service: sysmon

Detection

selection:
    EventID:
        - 8
        - 10
    SourceImage|endswith:
        - '\powershell.exe'
        - '\pwsh.exe'
    TargetImage|endswith: '\lsass.exe'
condition: selection

False positives (as the rule lists them)

Unknown

MITRE ATT&CK ids this rule names

T1003.001

References

https://speakerdeck.com/heirhabarov/hunting-for-powershell-abuse

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/sysmon_accessing_winapi_in_powershell_credentials_dumping.yml

Sources and licences

SigmaHQ
"Accessing WinAPI in PowerShell for Credentials Dumping" by oscd.community, Natalia Shornikova (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/deprecated/windows/sysmon_accessing_winapi_in_powershell_credentials_dumping.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: Accessing WinAPI in PowerShell for Credentials Dumping",
entity page, dataset version ref-08fadf77094a, updated 2022-12-18T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/3f07b9d1-2082-4c56-9277-613a621983cc (accessed 2026-11-03).
Underlying source: SigmaHQ rule 3f07b9d1-2082-4c56-9277-613a621983cc, 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.