Backdoor.Graybird Trojan?

About two or three days ago, whenever I turned on my PC (Windows XP) and logged in, my Norton Internet Security ('09) would pop up with an alert, saying they had found the Backdoor.Graybird trojan, but couldn't clean it, quarantine it, or anything. Is it a false alarm or is there an actual virus? But other than those Norton alerts, don't see anything else that's out of the ordinary or different.
I just went through the READ & RUN ME cleaning process, hopefully I got it right, hoping you guys can find something in the LOGS? Thank you!

-Jenn

 

Hi Jenn,

This is Mike from the Norton Authorized Support Team.

First, follow the instructions and read the information that "chaslang" has posted regarding your logs, etc.

In regards to the "Backdoor.Graybird" infection that Norton Internet Security 2009 is reporting, it could be that some of the infected files are residing in one of your restore points, and there could also be some registry changes that the infection made that need to be manually changed. Please carefully follow the instructions in the following document to properly update and scan your computer and reverse the changes that were made in the registry by the "Backdoor.Graybird" infection.

Remove the Backdoor.Graybird Trojan

Please let me know if this process removes the infection for you or if you are still alerted by Norton.

Thank you,
Mike