SigmaHQ/rules/windows/powershell/powershell_suspicious_getprocess_lsass.yml
2021-08-21 09:50:59 +02:00

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YAML

title: PowerShell Get-Process LSASS in ScriptBlock
id: 84c174ab-d3ef-481f-9c86-a50d0b8e3edb
status: experimental
description: Detects a Get-Process command on lsass process, which is in almost all cases a sign of malicious activity
references:
- https://twitter.com/PythonResponder/status/1385064506049630211
tags:
- attack.credential_access
- attack.t1003.001
author: Florian Roth
date: 2021/04/23
modified: 2021/08/04
logsource:
product: windows
service: powershell
definition: Script Block Logging must be enable
detection:
select_LSASS:
EventID: 4104
ScriptBlockText|contains: 'Get-Process lsass'
condition: select_LSASS
falsepositives:
- Legitimate certificate exports invoked by administrators or users (depends on processes in the environment - filter if unusable)
level: high