That's the 'Sasser' worm. Go here and scroll down to the 'Check my PC' for infection button if you think you have it.

To download the patch to protect your PC from infection go here.

This worm does not infect Mac's or machines running Win98, Win95, or WinME.

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Put me on wheels and I'll turn tricks.

Clever? Nah, I ran out of that years ago. But if you find this, let me know, k?
"The road goes ever on..." ~ Tolkien

In memory of my friend skip...
Go then, there are other worlds than these