It would be nice if there were some way to attack their command and control server space; but then, that is pretty difficult to determine(the FBI is lucky to find them occasionally). I do see on Brian Krebs discussions, that some of them can be discovered, but it is a hit or miss proposition, and the server that can be found, may not be the target of the original investigation. At least it would be fun to "get even" though, even if it isn't the specific criminal of interest!