sigmamediumHunting

UtilityFunctions.ps1 Proxy Dll

Detects the use of a Microsoft signed script executing a managed DLL with PowerShell.

MITRE ATT&CK

defense-evasion

Detection Query

selection:
  CommandLine|contains:
    - UtilityFunctions.ps1
    - "RegSnapin "
condition: selection

Author

frack113

Created

2022-05-28

Data Sources

windowsProcess Creation Events

Platforms

windows

References

https://lolbas-project.github.io/lolbas/Scripts/UtilityFunctions/

Tags

attack.defense-evasionattack.t1216

Raw Content

title: UtilityFunctions.ps1 Proxy Dll
id: 0403d67d-6227-4ea8-8145-4e72db7da120
status: test
description: Detects the use of a Microsoft signed script executing a managed DLL with PowerShell.
references:
    - https://lolbas-project.github.io/lolbas/Scripts/UtilityFunctions/
author: frack113
date: 2022-05-28
tags:
    - attack.defense-evasion
    - attack.t1216
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        CommandLine|contains:
            - 'UtilityFunctions.ps1'
            - 'RegSnapin '
    condition: selection
falsepositives:
    - Unknown
level: medium