Steam ports range, how to block Steam in network?

  Protocol:
Steam
Support: WFilter Free 1.0, WFilter zh.4.1, WFilter en.4.1
  Author: imfirewall ModifyTime: 2020-05-15 04:38:07  
      Steam is a game download platform.  

This protocol is official supported. You can install it in "System Settings"->"Protocols" of WFilter.

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     User name:34.238.248.103
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Nice job. . .
By 180.109.14.* on 2013-01-01 22:20:15   like( 1 ) dislike( 0 )

"Steam" uses TCP protocol for communication.

TCP traffic analysis

Ports Range

Dynamic ports, no fixed port found.

HTTP traffic analysis

HTTP traffic is found in Steam's traffic.

Host(s) being connected(regular expression): st\.dl\.pinyuncloud\.com$.

TLS traffic analysis

TLS connections are found in Steam's traffic.

TLS Host(s) being connected(regular expression): (steampowered\.com|steam-chat\.com|steamcdn-a\.akamaihd\.net)$.

How to block Steam?

  • Block the listed http and tls domains to block Steam.
  • Setup a content filter(ie: WFilter), which can block Steam via signature matching.

Steam v4.0(2020-04-28 03:27:01)

● Add pattern.

Steam v3.0(2012-12-27 04:09:32)

● Add pattern.

Steam v2.0(2012-12-20 02:00:00)

● Add pattern.

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