The cyber warfare has begun!! I would personally says that this is the splinter cell of the cyberworld. WHY?? You all don't know STUXNET??
Since that question had already been answered by many people, I'll just pick it up for all of you.
- It's a Windows worm, spreading via USB sticks. Once inside an organization, it can also spread by copying itself to network shares if they have weak passwords.
- It can spread anything that you can mount as a drive.
- It infects the system, hides itself with a rootkit and sees if the infected computer is connected to a Siemens Simatic (Step7) factory system. see: Siemens - Factory Automation Systems
- It modifies commands sent from the Windows computer to the PLC. Once running on the PLC, it looks for a specific factory environment. If this is not found, it does nothing
The rest you can read it at the site given. What interesting about this worm is that it's made a year ago, and just recently discovered. It's is about 1.5MB in size. Extremely big for a worm. A more interesting fact is that the worm may originate from Israel