CWmike writes "No botnet is invulnerable, a Microsoft lawyer involved with the Rustock take-down said Tuesday, countering claims that another botnet was 'practically indestructible.' Richard Boscovich, a senior attorney with Microsoft's Digital Crime Unit said, 'If someone says that a botnet is indestructible, they are not being very creative legally or technically. Nothing is impossible. That's a pretty high standard.' Instrumental in the effort that led to the seizure of Rustock's command-and-control servers in March, Boscovich said Microsoft's experience in take-downs of Waledac in early 2010 and of Coreflood and Rustock this year show that any botnet can be exterminated. 'To say that it can't be done underestimates the ability of the good guys,' Boscovich said. 'People seem to be saying that the bad guys are smarter, better. But the answer to that is 'no.''"