I am suferring from many failed attempts trying to block ultrasurf. i added the application to a deny policy on the top of my policies, but users keeps jumping to the allow policy. i tried to block unkown UDP/TCP apps, but it failed too. the applcation itself can't be blocked even though i blocked all the dependecies. i tried to do it on 5050 and 5060 on both PAN 5.0.11 and PAN-OS 6.0 with the most updated licenses.can some one help. i guess it's considered a huge problem
I believe you have already opened a case but incase you have not i would recommend opening a case with support with the following information
1. Application version of Ultrasurf
2. pcap of the traffic from the client side
3. traffic logs during your testing
4. techsupport file
Hope this helps.
It seems ultrasurf has updated it's proxy network. based from the current version 13.04, PAN detects Ultrasurf and denies it. however it passes thru for some weird reasons and now the software calls for HE.NET which resides in the USA. i have responded to an older query regarding Ultrasurf but during that time, the software calls / connect to Taiwan (HINET) which i stated to block the whole country to prevent ultrasurf from connecting. What you can do for now is to double check your filters and make sure ultrasurf and unknown-tcp are on your app block-list. This may not be full proof but it can slow "ultrasurf" to a crawl (for the mean time). which i'm doing right now. Let's hope PAN team can resolve this quickly.
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