The secret worm 007

There may be lot of investigations going on and media might be aware of some, not aware of many, may have cooked some information in the process etc etc. We may never know the truth and we may not get some answers for many questions...
If I may just speak about one of the interesting part in the whole news of stuxnet, it is the use of technology. (On a side note, Fox News has given a good detailed article, which is another interesting thing :P).

Some of the interesting things from cyber security viewpoint:
1) Exploiting unknown vulnerabilities in the system, even the creator / developer of the system is unaware of.
2) Breaking an "air gap" system, by deploying the worm at a strategic place.
3) Adapting to changes in the security measures until attaining the target.
4) Destroying itself, without leaving evidence for cyber trace.

Though this looks like fiction, the secret worm 007 (created by group of people / organizations / countries / military) seem to have done it..

Where is the worm?