CricketMX.com

This worm is currently doing the rounds... it will infect your machine via an open port usually 455.. then broadcast itself to other ip address which it generates. It will also makes a selection of copies of itself (8 jumbled letters) in your windows folder. (typically C:\ LFGCIOBL.exe, YEQKZPBY.exe). Sasser works in conjunction with another nastier virus
W32GaoboT!INF this ones a meanie, it will disable your anti viral software , leaving you open to everything the web can send you .
Both of these two have variants already! Usual preventive options ie update your antiviral package regularly , microsoft update , and only let known applications through your firewall using only the ports they need to work. Help with these 2 can be found at sysmantec. (norton)
http://securityresponse.symantec.com/av ... .tool.html
http://securityresponse.symantec.com/av ... .tool.html

What does the virus do?

Sasser is a new worm which will constantly shut down your computer and boot it back up again. As long as your Windows Updates are all up to date your protected.

I ran it today and it said there were no critical updates

You can read about it here , (this is the B variant but it discusses the normal one as well ) http://securityresponse.symantec.com/av ... .worm.html Basically it will eat up your resources. Its not a file damager. and if you have updated on certain microsoft packages you may never even see this one : )