How to block tor browser in network?

Some users might use tor browser to bypass the control of company firewall, and makes your firewall useless. In this topic, I will guide you to block tor browser traffic in your network with WFilter ICF(internet content filter).

1. Define tor browser protocol

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New a “torbrowser” protocol in “System Settings”->”Protocols”.

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New pattern, choose “TLS2″ type, “Offset” as “0″, “Pattype” as “Regular Expression”. Patterns: “\x01\x02\x02\x02\x03\x00\x0F\x00\x01\x01$”.

Save settings and apply the changes.

2. Deploy a tor blocking policy

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Add a blocking policy, set “Torbrowser” to “Deny” in “applications”.

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Apply this policy to certain client devices.

3. Test and checking

After above steps, the tor browser shall not be able to establish a tor network connection.

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In “live connections” of WFilter, you can see “tor browser”  being blocked.

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