I want to start blocking 'high risk' top level domains within PAN-OS. Has anyone else done this successfully?
I presume the following should work based on PAN-OS RegEX:
Set URL Category to 'Block' within existing URL Filtering Profile.
I would say utilize the dynamic features of the PAN to do this for you instead of utilizing specific lists. Enable all, AntiVirus, Anti-Spyware with DNS sinkhole, Vulnerability protection, URL filtering, and wildfire. Then use a secure DNS provider, either palo alto's or someone elses, and block all others. I made a video for a conference regarding secure DNS that is worth the 12 minutes.
Its all about defense in depth and machine learning, rather than static lists.
Hope this helps.
You can dig more from Unit42 post: https://unit42.paloaltonetworks.com/top-level-domains-cybercrime/
Also, from https://www.spamhaus.org/statistics/tlds/
If you want to do it at larger scale, EDL can be a better choice than static entries.
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