system
2
The 3 files
kernel32.dll
winsock.dll
wsock.32.dll
are put in the chest by default by avast and were not virus infected.
You need to disable system restore in order to remove the viruses. By disabling system restore windows will delete the entire contents of the folder called system volume information.
Once you have disabled system restore do a full system scan.
If everything is clean you can enable system restore again.