SigmaHQ/rules/windows/process_creation/win_powershell_dll_execution.yml
2020-09-02 02:34:34 +02:00

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YAML

title: Detection of PowerShell Execution via DLL
id: 6812a10b-60ea-420c-832f-dfcc33b646ba
status: experimental
description: Detects PowerShell Strings applied to rundll as seen in PowerShdll.dll
references:
- https://github.com/p3nt4/PowerShdll/blob/master/README.md
tags:
- attack.defense_evasion
- attack.t1085 # an old one
- attack.t1218.011
author: Markus Neis
date: 2018/08/25
modified: 2020/09/01
logsource:
category: process_creation
product: windows
detection:
selection1:
Image:
- '*\rundll32.exe'
selection2:
Description:
- '*Windows-Hostprozess (Rundll32)*'
selection3:
CommandLine:
- '*Default.GetString*'
- '*FromBase64String*'
condition: (selection1 or selection2) and selection3
falsepositives:
- Unknown
level: high