SigmaHQ/rules/windows/process_creation/win_webshell_detection.yml
2020-06-16 14:46:08 -06:00

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YAML

title: Webshell Detection With Command Line Keywords
id: bed2a484-9348-4143-8a8a-b801c979301c
description: Detects certain command line parameters often used during reconnaissance activity via web shells
author: Florian Roth
reference:
- https://www.fireeye.com/blog/threat-research/2013/08/breaking-down-the-china-chopper-web-shell-part-ii.html
date: 2017/01/01
modified: 2019/10/26
tags:
- attack.privilege_escalation
- attack.persistence
- attack.t1100
- attack.t1505.003
logsource:
category: process_creation
product: windows
detection:
selection:
ParentImage:
- '*\apache*'
- '*\tomcat*'
- '*\w3wp.exe'
- '*\php-cgi.exe'
- '*\nginx.exe'
- '*\httpd.exe'
CommandLine:
- '*whoami*'
- '*net user *'
- '*ping -n *'
- '*systeminfo'
- '*&cd&echo*'
- '*cd /d*' # https://www.computerhope.com/cdhlp.htm
condition: selection
fields:
- CommandLine
- ParentCommandLine
falsepositives:
- unknown
level: high