That one has been running loose for a year - but thus far nothing malicious has been sent from the command computer(s)....or at least nothing reported to the public. My guess is that the author(s) of stuxnet either wrote it or provided the kernel code for it. Of course the real question is who created (or better yet - who PAID to have created) stuxnet. Some variant of it will probably really screw something up and then we'll find out it was the CIA. and Mossad who's responsible...