Florian Roth
49 lines
1.5 KiB
YAML
49 lines
1.5 KiB
YAML
title: Alternate PowerShell Hosts Pipe
|
|
id: 58cb02d5-78ce-4692-b3e1-dce850aae41a
|
|
status: test
|
|
description: Detects alternate PowerShell hosts potentially bypassing detections looking for powershell.exe
|
|
author: Roberto Rodriguez @Cyb3rWard0g, Tim Shelton
|
|
references:
|
|
- https://threathunterplaybook.com/notebooks/windows/02_execution/WIN-190815181010.html
|
|
date: 2019/09/12
|
|
modified: 2022/02/16
|
|
logsource:
|
|
product: windows
|
|
category: pipe_created
|
|
detection:
|
|
selection:
|
|
PipeName|startswith: '\PSHost'
|
|
filter1:
|
|
Image|endswith:
|
|
- '\powershell.exe'
|
|
- '\powershell_ise.exe'
|
|
- '\WINDOWS\System32\sdiagnhost.exe'
|
|
- '\WINDOWS\System32\wsmprovhost.exe'
|
|
- '\Windows\system32\dsac.exe'
|
|
- '\Windows\system32\wbem\wmiprvse.exe'
|
|
- '\ForefrontActiveDirectoryConnector.exe'
|
|
- 'c:\windows\system32\inetsrv\w3wp.exe' # this is sad :,( but it triggers FPs on Exchange servers
|
|
filter2:
|
|
Image: null
|
|
filter3: # Microsoft SQL Server\130\Tools\
|
|
Image|contains|all:
|
|
- ':\Program Files'
|
|
- '\Microsoft SQL Server\'
|
|
Image|endswith: '\Tools\Binn\SQLPS.exe'
|
|
filter4:
|
|
Image|startswith:
|
|
- 'C:\Program Files\Citrix\'
|
|
- 'C:\Program Files\Microsoft\Exchange Server\'
|
|
condition: selection and not 1 of filter*
|
|
fields:
|
|
- ComputerName
|
|
- User
|
|
- Image
|
|
- PipeName
|
|
falsepositives:
|
|
- Programs using PowerShell directly without invocation of a dedicated interpreter.
|
|
level: medium
|
|
tags:
|
|
- attack.execution
|
|
- attack.t1059.001
|