28 lines
666 B
YAML
28 lines
666 B
YAML
|
|
title: Invoke-Obfuscation STDIN+ Launcher
|
|
author: Jonathan Cheong, oscd.community
|
|
date: 2020/10/15
|
|
description: Detects Obfuscated use of stdin to execute PowerShell
|
|
detection:
|
|
SELECTION_1:
|
|
EventID: 1
|
|
SELECTION_2:
|
|
CommandLine|re: .*cmd.{0,5}(?:/c|/r).+powershell.+(?:\$\{?input\}?|noexit).+"
|
|
condition: (SELECTION_1 and SELECTION_2)
|
|
falsepositives:
|
|
- Unknown
|
|
id: 6c96fc76-0eb1-11eb-adc1-0242ac120002
|
|
level: high
|
|
logsource:
|
|
category: process_creation
|
|
product: windows
|
|
references:
|
|
- https://github.com/Neo23x0/sigma/issues/1009
|
|
status: experimental
|
|
tags:
|
|
- attack.defense_evasion
|
|
- attack.t1027
|
|
- attack.execution
|
|
- attack.t1059.001
|
|
ruletype: SIGMA
|