And another botnet goes down

Via Slashdot: IT World reports that the Zeus botnet was partially knocked offline when its supporting ISPs, Troyak and Group 3, were disconnected by their upstream servers. IT World is reporting that the Zeus botnet lost a third of its command-and-control servers overnight.

According to IT World, the Zeus botnet was responsible for a wave of financial fraud that caused hundreds of millions in losses over the past year.

The first and most effective such takedown ocurred just over a year ago when McColo was taken down by its upstream providers. The Rustock and other botnets were knocked offline, resulting in a 60-70% drop in spam overnight.