SigmaHQ/rules/windows/powershell/powershell_suspicious_invocation_specific.yml
2019-11-12 23:12:27 +01:00

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YAML

title: Suspicious PowerShell Invocations - Specific
id: fce5f582-cc00-41e1-941a-c6fabf0fdb8c
status: experimental
description: Detects suspicious PowerShell invocation command parameters
tags:
- attack.execution
- attack.t1086
author: Florian Roth (rule)
logsource:
product: windows
service: powershell
detection:
keywords:
Message:
- '* -nop -w hidden -c * [Convert]::FromBase64String*'
- '* -w hidden -noni -nop -c "iex(New-Object*'
- '* -w hidden -ep bypass -Enc*'
- '*powershell.exe reg add HKCU\software\microsoft\windows\currentversion\run*'
- '*bypass -noprofile -windowstyle hidden (new-object system.net.webclient).download*'
- '*iex(New-Object Net.WebClient).Download*'
condition: keywords
falsepositives:
- Penetration tests
level: high