Linford of SpamHaus: “Sobig has created a network of tens of thousands of zombie machines that have left a DDoS arsenal in the hands of spammers.”

According to Linford, the cadre of open relays is aimed at spam warriors… Has killed a couple, too. He fumes that govt better wake up and do something before it finds itself in Sobig’s sites.

Unfortunately, govt can’t stop the undead from hijacking the braindeads’ systems for use as open relays. You can. And you know how. Here’s your shortlist, with emphasis on email.

  • Keep patches up-to-date… on every computer.

  • Set your mail server to block relaying.

  • Install Denial-of-Service protection.

  • Reject messages to unknown recipients.

  • Restrict double-bounce messages.

  • Maintain anti-virus updates network-wide.

  • Disable incoming email scripts.

  • Find and remove as-yet unknown viruses.

    While it sounds like a lot of work, most of the pitchfork work can be handled by a top-notch spam, content and zombie filtering appliance… of course.

    See for yourself at The Register.