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Pressed by increasingly effective anti-spam efforts, senders of unsolicited commercial e-mail are resorting to outright criminality in their efforts to conceal the source of their ill-sent missives, using Trojan horses to turn the computers of innocent netizens into secret spam zombies.

"This is the newest delivery mechanism," says Margie Arbon, director of operations of anti-spam group MAPS. "I've been looking for it for a year, and in the last couple of months people have actually found Trojans that are doing it... They're carrying their own SMTP engines. Failing that, they install open proxy software."

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http://www.securityfocus.com

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