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
logsource:
    product: windows
    service: powershell
    definition: 'It is recommended to use the new "Script Block Logging" of PowerShell v5 https://adsecurity.org/?p=2277'
detection:
    keywords:
        EventID: 4104
        ScriptBlockText|contains:
            - 'Get-Process lsass'
    condition: keywords
falsepositives:
    - Legitimate certificate exports invoked by administrators or users (depends on processes in the environment - filter if unusable)
level: high