anonymizer category in application control

[Daniel_Kavan]

Does anyone use the anonymizer category to prevent incoming traffic from using anonymizers to their web sites?

[the_rock]

I used it before for some proxy blocking in the lab. Below are best references I could find.

https://usercenter.checkpoint.com/ucapps/urlcat/categories

An intermediary which prevents Web sites from seeing a user's Internet Protocol (IP) address. Anonymizers are often used to circumvent company network acceptable use policies to potentially hide non-appropriate behavior, however in the home setting they may be used to provide additional layers of anonymity and protect privacy. Examples: http://www.anonymizer.com, http://www.megaproxy.com, http://www.hidemyass.com

https://appwiki.checkpoint.com/appwikisdb/public.htm

Just filter for category as anonymizer and same for the tags.

Andy

[PhoneBoy]

The Anonymizer category is specifically for outbound connections.
I don't believe it will work for blocking traffic FROM anonymizers. 
We do offer a list of TOR IPs you can block, though: https://support.checkpoint.com/results/sk/sk103154 

[cem82]

For TOR - I'm wondering even if you have AV/AB and can use custom intelligence feeds which the SK mentions to use as the method as best practice, is there any drawbacks for using as network feed instead?  I would think if you do that way would be processed by FW blade and sooner in the packet flow so wonder if it is still best practice on 81.20?