I wanted to share some research and findings I have dug up. It appears that Avast quarantines its files in a folder under: C:\ProgramData\AVAST Software\Avast\chest on Windows 7/8 machines. Inside that folder is a list of files that have been renamed from there original names. There's also an index.xml file located in there with a catalog of moved files and rename information.
What I'm getting at is, can someone write a .bat file that scans the XML file, filtering everything except the Win32:Kryptik-PFA [Trj] tag, query the original file name and file location and restore users files? Users would have to be able to get to a Command Prompt and have the .bat file on a usb thumb drive.
This could save a lot of headache for people affected. See below for attached screenshot of my example. The files are the same exact size.
Keep in mind this would only work for those that chose to "move to chest" rather than "delete" the files.
I have some bat file skills, but no knowledge of being able to query an .xml file.