This is evidently a new one, since Norton says they just added the signature yesterday (04/17).

Since the virus definition is new, the cure might not be on your machine yet. You may get some additional help by running the online (it's free) Symantec Security Check.

Your AV may have picked it up via "it looks suspicious" clues, but not know what to do about it. The onsite check direct from Norton may include a proper quarantine, if not a removal. Norton doesn't normally send autoupdates more than once a week, so you might not get the "official" cure for this one via normal update for a few days - if they don't think it's a severe threat.

I haven't found a description/details yet - but you're "at the breakin' edge of the new stuff" from what I've seen so far.

John