blue-team-tools/rules/windows/powershell/powershell_script/powershell_suspicious_getprocess_lsass.yml

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