How to allow certain Services (Antivirus, Udateservers)

Question

Hello, the UTM has started to block an Kaspersky Antivirus updates or signuature renewals (this started a month ago after some UTM upgrades. The same happens to other update Services for some garphics Adapters (Geforce), O&O Imanging Software etc. 
 BTW, Kaspersky has lots of update Servers. The download of the new files start but end up in freeze at 65 - 83% (it varies). Switching off the UTM an bringing the PCs directly to the Internet Show that the UTM configuration is stopping the process. Any ideas?

Mihira Fernando · Answer

I found a similar problem with Sophos XG firewalls where the same symptoms were appearing and Kaspersky updates fails halfway through. A bit of digging around showed that the firewall was blocking virus definition files ending with .dat extension as these are categorized as video files and the firewall policy is to block videos. 
 Creating exceptions for web filtering in the following manner : 
 ^[A-Za-z0-9.-]*\.kaspersky-labs.com\.?/ 
 ^[A-Za-z0-9.-]*\.kaspersky.com\.?/ 
 
 solved the issue for me. 
 
 You maybe experiencing a similar issue.

FormerMember · Answer

Hi Mihira, 
 what exams do you leave in your exception? It still does not work :-( 
 First I had 
 ^https?://([A-Za-z0-9.-]+\.)?kaspersky\.com/ 
 maintained. Then I had read your post and changed to 
 ^[A-Za-z0-9.-]*\.kaspersky-labs.com\.?/ ^[A-Za-z0-9.-]*\.kaspersky.com\.?/