New Virus Spreads by Chatting with You

Instant-messaging users beware. A new strain of pernicious messaging bots attacking the AOL instant-messenger network gives users the sense that they are chatting with a buddy when in fact they are being infected with a virus.
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After infecting you, the bot will send new messages to addresses included in your buddy or contact list. These messages appear to be sent by you and encourage the recipient to spread the bot by downloading the same malware.

http://news.yahoo.com/s/nf/40032;_ylt...N5bmNhdA--