GEN:SID | 1:2452 |
Message | CHAT Yahoo IM ping |
Summary | This event is generated when a host in your network that has Yahoo Instant Messenger running attempts to maintain contact with a Yahoo IM server.
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Impact | Possible policy violation. Instant Messenger programs may not be appropriate in certain network environments.
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Detailed Information | Hosts running Yahoo IM periodically communicate with a Yahoo IM server to maintain their connection. This is a keep-alive message that simply indicates the presences of a host running Yahoo IM.
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Affected Systems | Any host running Yahoo Instant Messenger.
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Attack Scenarios | This particular type of Yahoo IM exchange has no known attacks, however it may represent a policy violation because the host is running Yahoo IM.
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Ease of Attack | A host running Yahoo IM will automatically ping a Yahoo IM server.
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Corrective Action | Disallow the use of IM clients on the protected network and enforce or implement an organization wide policy on the use of IM clients.
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Additional References | Yahoo Protocol http://www.cse.iitb.ac.in/~varunk/YahooProtocol.htm
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