Block High Risk TLDs

cancel
Showing results for 
Show  only  | Search instead for 
Did you mean: 

Block High Risk TLDs

L2 Linker

Hi All,

 

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:

 

URL Category:

 

*.eg/

*.ex/

etc....

 

Set URL Category to 'Block' within existing URL Filtering Profile.

 

Cheers

 

 

3 REPLIES 3

Cyber Elite
Cyber Elite

Hello,

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.

https://youtu.be/ROIAYSEbTuo

 

Its all about defense in depth and machine learning, rather than static lists.

 

Hope this helps.

 

L0 Member

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.

L2 Linker

Thanks for the responses all. 

 

I still believe PAN-OS should support blocking specific TLDs in a simple way; this seems like a fool proof way to greatly reduce the attack surface since we never need to visit sites using these TLDs for legitimate reasons.

  • 3755 Views
  • 3 replies
  • 0 Likes
  • 63 Subscriptions
Like what you see?

Show your appreciation!

Click Like if a post is helpful to you or if you just want to show your support.

Click Accept as Solution to acknowledge that the answer to your question has been provided.

The button appears next to the replies on topics you’ve started. The member who gave the solution and all future visitors to this topic will appreciate it!

These simple actions take just seconds of your time, but go a long way in showing appreciation for community members and the LIVEcommunity as a whole!

The LIVEcommunity thanks you for your participation!