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Hi @mb,

Thank you very much for the reply. As you suggested I'm attaching the pcap file for your reference.

Thanks in advance !

[port 443]

Hi there,

Is there any possible way to block  Ultrasurf client proxy by using Sensei. Ultrasurf sets up a local proxy on the user's computer, and then configures Internet Explorer's proxy settings to run all Internet requests through that local proxy. The default port is 9666. Since the traffic between Ultrasurf and IE is entirely on the localhost, it never goes to the network and can't be blocked by a firewall. Ultrasurf then sets up an encrypted connection with a remote server in its network of proxy servers. The connection to the remote proxy server is made over port 443. Hopefully someone out there can help me with this.

Thanks in advance !  :)  :)