I was using this KB https://kc.mcafee.com/corporate/index?page=content&id=KB50998 to create exclusions for VSE, is there some way to test them to know if some character is bad placed or if something wrong?
Navigate to one of the folders you have excluded and create an EICAR anti-virus test file called eicar.com using notepad as outlined here:
The On-Access Scanner should not pick up the file when you execute it if your exclusions are working correctly.
In order to verify that your EICAR file is working correctly move it to a directory that is not excluded (i.e. your desktop) and execute it.
You should see an VirusScan Enterprise alert for the malware detection.
Note it is better practice to use High & Low Risk processes policies rather than file and folder exclusions: