The Federal Trade Commission, Department of Commerce, Department of Homeland Security and 33 other agencies from over 20 countries want this stopped. They have joined together to form "Operation Spam Zombies", a new initiative to help ISPs and users prevent computers from being compromised by spammers. Several tactics are to be employed, such as blocking port 25 that is used for outgoing e-mail, applying rate-limiting controls for e-mail relays, identifying potential zombie machines, and providing customers with trojan-removal tools.
"Computers around the globe have been hijacked to send unwanted e-mail," said Lydia Parnes, Director of the FTC's Bureau of Consumer Protection. "With our international partners, we're urging Internet Service Providers worldwide to step up their efforts to protect computer users from costly, annoying, and intrusive spam zombies."