Bot network uses Twitter

Apparently, the current hype about Twitter has not passed malware writers by. Jose Nazario of Arbor appears to have discovered a bot-net that users the Twitter micro-blogging service for its communication. In a blog entry, Nazario tells of a Twitter account "upd4t3" (leet-speak for "update") whose messages seem to be Base64 encoded. He suspects the account may be used to control a bot network through allowing its clients to pick up orders. The concept is not entirely new; in 2007, The H reported on a trojan using Web-2.0-sites like MySpace for communication.