Downloader Alert from NIS09..False Positive or Real Threat?

Hello everyone..Long time since last visit..Hope everyone is fine..

 

Here is my issue.  I've had a game-Poker Superstars II-, in my pc since last September(08, that is), which I purchased legally.

 

I have been playing this game up until-around- Jan/Feb 09, when I stopped for one reason or another.  Last night, when I tried to play after Jan/Feb, I realized that I could not for some reason. I uninstalled the game and tried installing again (I have the setup file on my pc, since the day of purchase), but auto-protect alert kept coming-up, with a "Downloader" virus warning not allowing me to install.

 

I have disabled the auto-protect, installed the game and enable the auto-protect.  Immediately, the auto-protect placed the .exe file of the game in quarantine, again with the "Downloader" virus warning.  Now, the odd thing is that I run full system scans every two days for the last two years and up until Jan/Feb 09 I've had no kind of warning from NIS09.

 

I want to understand what happened and suddenly my game is a possible source of a "Downloader" virus threat.  Is it a false positive? Is it a real one? and if so what about the September 08-Jan/Feb 09 period that I was playing that game with no warnings from NIS09?

 

If it's a real threat-and now it is recognized by NIS09 due to definitions updates- how come my pc has not been infected by viruses during the September 08-Jan/Feb 09 period ?

 

I would appreciate your input and thoughts please, because these things do not make sence to me, at all.

 

Thank you in advance.

 

TrDo.

 

P.S. I have submitted the file to Symantec for analysis, but I don't know if and how they proceed from there on.  Do they publish these results anywhere? Or is it for their own consumption?