DavidR
4
I really can’t say as there really is insufficient information to form am opinion. If you had any infections previously and a file was moved to the chest or deleted, etc. then it is possible that system restore would save a copy of that file in a restore point.
The win32:malware-gen detection is a generic signature (the -gen at the end of the malware name), so that is trying to catch multiple variants of the same type of malware and is a fine balance between detecting a new variant and detecting something valid as infected.