In November of 2011 a multinational force of feds and wizards took down Rove Digital's on-line infrastructure including the DNS Changer name servers. Under contract to the FBI, employees of Internet Systems Consortium (ISC) installed "clean" replacement DNS servers to take care of a half million DNS Changer victims.
On July 9 2012 the last court order expired and we turned these name servers off, having had only mixed success in getting the malware cleaned up. Andrew Fried and Paul Vixie of ISC will present the whole story and talk about some of the hard lessons to be learned.