And Yet Another Botnet Incident, 100,000 Machines Nuked! May 12, 2009

It never ceases to amaze me what criminals will do.  Usually Bot Herders like to keep a hold of the compromised machines.  But hey, what better way to cover your tracks if your Botnet has been discovered!

http://voices.washingtonpost.com/securityfix/2009/05/zeustracker_and_the_nuclear_op.html