I understood. My point was that there really was nothing “extremely sophisticated” about Stuxnet’s basic distribution mechanisms. What was relatively sophisticated was its payload – recognizing specific systems that it should attempt to damage rather than simply using them to propagate itself until it reached one or more of those.
In other words: It was a thrown rock that knew enough to bounce off glass harmlessly until it reached the intended windows, and then to damage them in ways that didn’t immediately point to a virus attack. The basic mechanisms of throwing a rock and having it bounce are well known.
