Arnim Rupp
58 lines
1.7 KiB
YAML
58 lines
1.7 KiB
YAML
title: Webshell Detection With Command Line Keywords
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id: bed2a484-9348-4143-8a8a-b801c979301c
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description: Detects certain command line parameters often used during reconnaissance activity via web shells
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author: Florian Roth
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references:
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- https://www.fireeye.com/blog/threat-research/2013/08/breaking-down-the-china-chopper-web-shell-part-ii.html
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- https://unit42.paloaltonetworks.com/bumblebee-webshell-xhunt-campaign/
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date: 2017/01/01
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modified: 2021/01/11
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tags:
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- attack.persistence
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- attack.t1505.003
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- attack.t1018
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- attack.t1033
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- attack.t1087
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- attack.privilege_escalation # an old one
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- attack.t1100 # an old one
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logsource:
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category: process_creation
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product: windows
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detection:
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selection:
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ParentImage:
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- '*\apache*'
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- '*\tomcat*'
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- '*\w3wp.exe'
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- '*\php-cgi.exe'
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- '*\nginx.exe'
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- '*\httpd.exe'
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CommandLine:
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- '*whoami*'
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- '*net user *'
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- '*net use *'
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- '*net group *'
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- '*quser*'
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- '*ping -n *'
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- '*systeminfo'
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- '*&cd&echo*'
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- '*cd /d*' # https://www.computerhope.com/cdhlp.htm
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- '*ipconfig*'
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- '*pathping*'
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- '*tracert*'
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- '*netstat*'
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- '*schtasks*'
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- '*vssadmin*'
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- '*wevtutil*'
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- '*tasklist*'
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- '*wmic /node:*'
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- '*Test-NetConnection*'
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- '*dir \*' # remote dir: dir \<redacted IP #3>\C$:\windows\temp\*.exe
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condition: selection
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fields:
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- CommandLine
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- ParentCommandLine
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falsepositives:
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- unknown
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level: high
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