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Spammers' Upend DNS

Posted by CmdrTaco on from the cat-and-mouse dept.

Saint Aardvark writes "eWeek reports on the latest trick of spammers: getting around DNS-based lookups. By registering a domain *after* the spam goes out advertising it, they can get around blacklists. However, that causes all sorts of problems for ISPs and anti-spam services. Paul Judge, CTO at Ciphertrust, says "Even in large enterprises, it's becoming very common to see a large spam load cripple the DNS infrastructure.""

1 of 304 comments (clear)

  1. Auto-register domains by crow · · Score: 5, Interesting

    Some anti-spam group should set up a spam filter that looks for domain names, and registers any that it sees that aren't valid. They would point to a web site that politely explains to users how stupid they are for clicking on a link in spam.

    I expect spammers would drop that technique quite quickly if that were done.