My only guess that after reading a few articles recently, the Storm Worm's Fast Flux botnet had recently had many 419 scams that passed through not long ago, also in turn this is a reason why they might have been DDOSed, because the Storm Worm had some effort in doing that.
I think that I read on the site that it was Botnet zombie machines in Romania. -- Specializing in "takes downs" of phishing and advance fee scams Send your Phishing/Advance fee scams to: phish@antihotmail.com »/profile/1021645 »fraudwatchers.org/forums/