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 Friday, August 14, 2009
Twitter transformed into botnet command channel

For the past couple weeks, Twitter has come under attacks that besieged it with more traffic than it could handle. Now comes evidence that the microblogging website is being used to feed the very types of infected machines that took it out of commission.

That's the conclusion of Jose Nazario, the manager of security research at Arbor Networks. On Thursday, he stumbled upon a Twitter account that was being used as part of an improvised update server for computers that are part of a botnet.

The account, which Twitter promptly suspended, issued tweets containing a single line of text that looked indecipherable to the naked eye. Using what's known as a base64 decoder, however, the dispatches pointed to links where infected computers could receive malware updates.

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ITU Global Cyberecurity Agenda