Anyone been hit by the Sasser worm?

[Vampyr]

Two of my friends have gotten it. lol. I laugh at them for not updating their windows on a regular basis. This is the worm that causes your computer to slow down, and eventually shut itself down, right?

If I'm thinking about the right one, then when I got to school on monday, a bunch of the computers in the vocational building got hit with it. They kept calling my PC repair teacher asking what to do.