serious problem(trojan)

im not sure but i think i have a trojan virus on my pc. i need help . can anyone tell me what to do and what to dowload. (sorry for posting a problem like that here)

also it says that they know my ip and stuff like that and instead of my screensaver it says u have spyware .how can i remove this?
also i think that i have a spysherriff and if i use a program that can remove it.i have to register .what program can i use?


p.s:Troj/Zlob-BC is a downloader Trojan.
Troj/Zlob-BC will contact predefined remote sites and download data. The Trojan may then download further executable files and run them.
Troj/Zlob-BC displays the following fake warning message:
Your computer is infected!
Windows has detected spyware infection.
It is recommended to use special antispyware tools to prevent data loss.
Windows will now download and install the most
up-to-date antispyware for you.
Click here to protect your computer from spyware.


these r info on teh viruses on my pc and i have spysherriff

here you go

http://www.microsoft.com/security/in....mspx#homeuser

use general tool to check for others on same site

edit

try this one

http://www.microsoft.com/security/ma...e/default.mspx

For a minute I thought you had a broken trojan o_O

What he suggested is the best - I'd also recommened BitDefender.

Are you sure it is not a popup ad? (Silly question, but it would be funny)

Try Hitmanpro, a powerfull tool for removing spyware and trojans.

You can get in here (its a dutch site, dont know if you can read it i do :P) http://www.hitmanpro.nl/

lavasoft makes a good spyware program also. www.lavasoft.com.

This should rid you of trojans/spyware/etc. - free and spyware free too. It's basically their demo tool to see if you like the program.

http://housecall.trendmicro.com/