Windows PowerShell Remote Thread Into lsass.exe Suggesting Credential Dumping

Alerts when PowerShell creates a remote thread into lsass.exe, indicating possible credential dumping on Windows.

FreeReviewedSigma · High · v2
Product
windows
Category
create_remote_thread
Author
oscd.community, Natalia Shornikova (SigmaHQ), DRL 1.1
Published
2020-10-06
Updated
2026-07-31
title: Windows PowerShell Remote Thread Into lsass.exe Suggesting Credential Dumping
id: 742a37dd-70e4-499d-87d7-a146c097a66e
related:
  - id: 3f07b9d1-2082-4c56-9277-613a621983cc
    type: obsolete
  - id: 0f920ebe-7aea-4c54-b202-9aa0c609cfe5
    type: similar
  - id: fb656378-f909-47c1-8747-278bf09f4f4f
    type: derived
status: test
description: This rule flags Windows systems where a PowerShell process (powershell.exe or pwsh.exe) creates a remote thread targeting lsass.exe. Creating remote threads into lsass.exe is commonly associated with credential access techniques aimed at extracting authentication material. The detection relies on telemetry for remote thread creation events and the process image paths for both the source (PowerShell) and target (lsass.exe).
references:
  - https://speakerdeck.com/heirhabarov/hunting-for-powershell-abuse
  - https://github.com/SigmaHQ/sigma/blob/master/rules/windows/create_remote_thread/create_remote_thread_win_powershell_lsass.yml
author: oscd.community, Natalia Shornikova, Huntrule Team
date: 2020-10-06
modified: 2022-12-18
tags:
  - attack.credential-access
  - attack.t1003.001
logsource:
  product: windows
  category: create_remote_thread
detection:
  selection:
    SourceImage|endswith:
      - \powershell.exe
      - \pwsh.exe
    TargetImage|endswith: \lsass.exe
  condition: selection
falsepositives:
  - Unknown
level: high
license: DRL-1.1