I need help a.s.a.p.!?

i just received a security threat alert : MS07-016

i went directly to Window's update site, but after scanning my PC the message came back from them saying there were no new updates for my computer. So what is this threat about and what do i do? ( i have all the virus,etc. protection necessities,am fire-walled, set up for automatic updates, etc. So i don't understand how this happened)

I need help a.s.a.p.!?cafe racer

You are infected by a rouge AntiVirus. It is a variant of the Zlob Trojan. Try the following free softwares to rid yourself of malware:

I prefer Avast, but AVG is just as great.

AVG AntiVirus

http://free.grisoft.com/doc/1

Avast Home Antivirus

http://www.avast.com/eng/download-avast-...

You may also want some other tools to run and use as well

SpywareBlaster

http://www.download.com/spywareblaster/3...

Spybot S%26D

http://www.safer-networking.org/en/mirro...

AVG AntiSpyware

http://free.grisoft.com/doc/20/lng/us/tp...

Adaware (Lavasoft)

http://www.download.com/ad-aware-2007-fr...

If you are currently having a problem:

鈼?Download and install AVG. Use it first and see if it finds any viruses or trojans.

鈽?http://free.grisoft.com/doc/1

鈼?After running AVG go here and run this virus scanner online. There is no need to install it on your computer.