This is a new Virus that Avast! didnt catch - It was hidden as a DivX codec as you needed to install.
Both Avast! Home Free and Immunet Protect Free missed this… 
Posting VT result`s will not help detecting it, what helps is if you send the sample(s) to avast!..
But i think this is an False Positive…
sigcheck:
publisher…: DivX, Inc.
copyright…: (c) Copyright 2000 - 2010 DivX, Inc.
product…: DivX Setup
description…: DivX Setup
original name: DivXSetup.exe
internal name: DivXSetup
file version.: 2.0.4.2
comments…: n/a
signers…: -
signing date.: -
verified…: Unsigned
I agree with you, the scanners that named it as a virus have very high false positive rates.
its not a false positive… I launched a film that I got from a friend - I opened Windows Media Player and it said that I need divX codec - I assumed it was a virus. I clicked “download” and it leads me to a blank site with just a download?
How can a blank page, give me an .exe without “welcome” sign or something, also - The url were wrong after divX website.
Regards,
WildWestGuy ;D