XP SP3 up to date - AVG 8.5. My Malawarebytes (updated today) detected and removed (hopefully) 6 infections by "worm.koobface" in C:\Programme Files\Samsung Files\Samsung\Samsung CPS Studio. I hardly use this software as it relates to a mobile, and now I just get pix by using a card reader. Not sure if this is an old infection detected by MAB update. Will scan back up discs to check but thought others may be interested.