Hi,

try the KasperskyScan on the file(s)
…\Avast4\Data\chest\

if they’re encrpyted by AVAST too well, even kaspersky won’t find anything there, however .

In that case:
-remove all and any startup-Calls to the file in the registry-RUN-keys, win.ini, system. ini etc…
-make sure to close all unecessary/malign processes
-extract (NOT restore!!) the file from the chest; move it to new empty folder outside of the Windows(programs-folders…
-scan it with kaspersy there…
note the exact name and get back here, or search in virus-Databases/google