The stats at Spamcops and MxLogic, along with my own spam filter, makes me a believer in the claim of researchers that McColo provided the connectivity responsible for half the world’s spam.
No doubt the cyber crooks who lost their botnet’s ‘command and control’ servers will resume business somewhere else, but right now we can enjoy the temporary drop in spam.
Let’s not forget the child pornography (child abuse) vendors. At least 40 websites, nameservers or payment services used for child pornography were recently found to be hosted by McColo, according to HostExploit’s Report (PDF)
Third “Bad ISP” Dissolves — McColo Gone
Jose Nazario writes that in arbornetworks own database they have been tracking a few dozen botnets that phoned home to McColo IPs, and also nearly 1000 distinct URLs from hundreds of different malcode samples.
These guys ran a dirty operation.
As with Atrivo/Intercage, McColo relied on US transit peers.
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This is superb.
We have had spam reduction of around 2/3 since the 12th of November.
Most noticeable account being, postmaster@domain..
hehe
Great news, unfortunate that it may not be for very much longer.