Why, oh, that eternal question to fit most situations. Maybe because there came detection for this from yesterday henceon, maybe because it could be a false positive alert that came up with yesterday's signatures. Restore from quarantine, do a VT and if nothing outside avast! and GData with avast detection flags this at VT, it is more than probably a false positive find. If you get no flags it means the false positive has been repaired with a new update,
polonus
