Symantec – Worm simulator
So this is how those pesky worms get around on the net.
When a new worm spreads around the world, people want to know if they are protected. How fast is it? How does it spread? A new simulation program developed by Symantec Research Labs not only has the answers, it also provides pictures.
The new Symantec Worm Simulator visually demonstrates how worms spread through the Internet, and how they fare against a custom network and security policy.
Windows users watch and learn. If your computer is not yet protected, grab a copy of AVG Free 7 or Clam Antivirus. Think of the Internet as a $50 hooker. Do you really want to venture out into the wild unprotected?

