CyberBunker. Courtesy of Ars Technica

Recently, anti-spam organization Spamhaus became the victim of a large denial of service attack, intended to knock it offline and put an end to its spam-blocking service. By using the services of CloudFlare, a company that provides protection and acceleration of any website, Spamhaus was able to weather the storm and stay online with a minimum of service disruptions.

Since then, the attacks have grown to more than 300 Gb/s of flood traffic: a scale that##Q##s threatening to clog up the Internet##Q##s core infrastructure and make access to the rest of the Internet slow or impossible.

It now seems that the attack is being orchestrated by a Dutch hosting company called CyberBunker. CyberBunker specializes in “anything goes” hosting, using servers in a former nuclear bunker (hence the name). As long as it##Q##s not “child porn and anything related to terrorism,” CyberBunker will host it. This includes sending spam.

Spamhaus blacklisted CyberBunker earlier in the month. A CyberBunker spokesman, Sven Olaf Kamphuis, told The New York Times that CyberBunker was fighting back against Spamhaus because the anti-spam organization was “abusing [its] influence.”

Spamhaus DDoS Grows to Internet-threatening Size | DFI News.

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