I use Avast version 4.7 Home Edition and while running a thoruogh scan of my hard drive, I found 2 trojan-gen. The program told me they were successfully moved to chest, but I have no idea what it measn.
Can anyone please explain to me if I need to do something to completely remove these viruses?
One of them is in C:/Program Files/GXTranscoder v2/FunctionAddlns/gxFunction_System.dll and the other in C:/System Volume Information/_restore bla bla bla numbers/A0031219.dll
The Chest can be thought of as a special folder on your computer that is safe and isolated, which makes it a suitable place for storing specific files. You can still work with the files in the Chest, but with some restrictions.
So I suggest a read of the avast! help file whilst the alarm bells aren’t ringing in your ears, get to know a little more about avast and get the best out of it.
You have done the right thing, ‘first do no harm’ don’t delete, send virus to the chest and investigate. You could also check the offending/suspect file at: VirusTotal - Multi engine on-line virus scanner
Or Jotti - Multi engine on-line virus scanner if any other scanners here detect them it is less likely to be a false positive. You can’t do this with the file in the chest, you will need to move it out. Let us know the result.
There is no rush to delete anything from the chest, a protected area where it can do no harm. Anything that you send to the chest you should leave there for a week or two. If after that time you have suffered no adverse effects from moving these to the chest, scan them again (inside the chest) and if they are still detected as viruses, delete them.
The first file will now be in the chest, as should the second, however, the c:\System Volume Information folder is a part of the system restore function and as such is protected by windows, the only way to clean infected _restore points is to disable system restore and reboot. This will clear ALL _restore points. Once you have disabled system restore, reboot, scan your PC again and if clear enable system restore.