"Storm has been around for almost a year, and the antivirus companies are pretty much powerless to do anything about it."
But the really scary part?
"Oddly enough, Storm isn't doing much, so far, except gathering strength. Aside from continuing to infect other Windows machines and attacking particular sites that are attacking it, Storm has only been implicated in some pump-and-dump stock scams. There are rumors that Storm is leased out to other criminal groups. Other than that, nothing.
Personally, I'm worried about what Storm's creators are planning for Phase II. "
from "Schneier on Security: The Storm Worm"