This bad definition file has wreaked more havoc than any other virus/trojan I've dealt with.
Users, through no fault of their own, try and do the right thing and quarantine/move to chest/delete the "infected" files and essentially make their PC's unusable.
It will be a long day/night for many of us.
Even if they release an updated definition, we will still all be dealing with the fallout for hours if not days.
Here is a reply from a ticket I submitted earlier.
//
Hello,
We are currently aware of a problem that's causing false positives to all our clients.
We're working on a fix, and will push it out ASAP.
Thank you for your patience,
Max Marak
Avast Corporate
//