Backdoor.spakrab help, please?

i looked in the resgistry in safe mode, and i couldnt find the file i was supposed to delete (found on regular internet research)

my computer wont run IE in safe mode either-- so i couldnt use ewido, eset, etc.

on the internet ,i found pages that said avast (my virus scanner) is incapable of finding this virus-- just what it does. i got a warning letter from my internet provider that i need to stop it or i'll get disconnected.

we have a "Free" trial of Norton, and it's catching backdoor.spakrab-- however, since its a trial it wont let me get rid of it. I dont like Norton anyway, so Im not going to download it. I just know that it's still there.

what is a FREE scanner (preferably downloadable--so i can run it in safemode) that will remove backdoor.spakrab?

Backdoor.spakrab help, please?windows

Manually delete instructions

1. Temporarily Disable System Restore (Windows Me/XP). [how to]

2. Update the virus definitions.

3. Reboot computer in SafeMode [how to]

4. Run a full system scan and clean/delete all infected file(s)

5. Delete/Modify any values added to the registry. [how to edit registry]

Navigate to and delete the following registry entry:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\...

\鈥漑RANDOM LETTERS]鈥?= 鈥?System%\[RANDOM LETTERS].exe鈥?br>

6. Exit registry editor and restart the computer.

7. In order to make sure that threat is completely eliminated from your computer, carry out a full scan of your computer using AntiVirus and Antispyware Software. Another way to delete the virus using various Antivirus Program without the need to install can be done with Online Virus Scanner.