PowerShell Get-Process LSASS

testhigh
log source: windows · process_creationauthor Florian Roth (Nextron Systems)date 2021-04-23
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description

What this is, in brief.

Detects a "Get-Process" cmdlet and it's aliases on lsass process, which is in almost all cases a sign of malicious activity

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tags

attack.credential-accessattack.t1552.004
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rule source (YAML)

title: PowerShell Get-Process LSASS
id: b2815d0d-7481-4bf0-9b6c-a4c48a94b349
status: test
description: Detects a "Get-Process" cmdlet and it's aliases on lsass process, which is in almost all cases a sign of malicious activity
references:
    - https://web.archive.org/web/20220205033028/https://twitter.com/PythonResponder/status/1385064506049630211
author: Florian Roth (Nextron Systems)
date: 2021-04-23
modified: 2023-01-05
tags:
    - attack.credential-access
    - attack.t1552.004
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        CommandLine|contains:
            # You can add more permutation as you see fit
            - 'Get-Process lsas'
            - 'ps lsas'
            - 'gps lsas'
    condition: selection
falsepositives:
    - Unknown
level: high
regression_tests_path: regression_data/rules/windows/process_creation/proc_creation_win_powershell_getprocess_lsass/info.yml
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detects techniques (1)

ATT&CK techniques this enables or maps to.

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references

External citations — patches, advisories, analysis.