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Short Name

CHAT:YIM:HTTP-TUNNEL

Severity

Info

Recommended

No

Category

CHAT

Keywords

HTTP Tunneling

Release Date

2007/02/28

Update Number

1213

Supported Platforms

idp-4.0+, isg-3.0+, j-series-9.5+, mx-11.4+, srx-12.1+, srx-branch-12.1+, vmx-17.4+, vsrx-12.1+, vsrx3bsd-18.2+

YMSG: HTTP Tunneling


This signature detects Yahoo Instant Messenger traffic over HTTP. Depending on your corporate policies, Instant Messaging can be a violation of your end-user's network usage policy. Setting the action "Close Client and Server" blocks users from chatting on Yahoo. This rule should only be applied to a WAN interface.

Extended Description

None

References

  • URL: http://www.venkydude.com/articles/yahoo.htm
  • URL: http://messenger.yahoo.com/
  • URL: http://libyahoo2.sourceforge.net/ymsg-9.txt

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