4 Replies Latest reply on Aug 8, 2013 12:40 AM by stonewall

    Block Ultrasurf.

    choscar08

      Hello,

       

      Does anybody knows how to block the ultrasurf application with Firewall enterprise ??

      We are working with MFE 8.3 patch 2.

       

       

      Thanks in advance.

        • 1. Re: Block Ultrasurf.
          sliedl

          You could set up SSL decryption/re-encryption for outbound traffic.  That would block it I believe because UltraSurf uses specific certficates and won't accept the firewall's-CA-signed cert in place of certs signed by its trusted CA.

           

          Other than that all you can do is block the range of IPs that UltraSurf uses.  Google search for 'block ultrasurf' to find out those IPs and block them for port 443.

          1 of 1 people found this helpful
          • 2. Re: Block Ultrasurf.

            Not working. Please give me a proper solution...

            • 3. Re: Block Ultrasurf.
              choscar08

              Tanzir, the AppPrism update 3.195 has a signature for UltraSurf:

                        New Application Ultrasurf (0x50020000) with category: proxy-anonymizers tunnels.

              Maybe it could help you.

               

              Regards.

              • 4. Re: Block Ultrasurf.
                stonewall

                Choscar08, I also have the same problem. we are working MFE 8.3.1

                I try create rule to block ultrasurf application. But not working.

                 

                Ce message a été modifié par: stonewall on 08/08/13 00:39:09 CDT

                 

                Ce message a été modifié par: stonewall on 08/08/13 00:40:06 CDT