I did a full scan. This picked up a few things, but notably: VHO:Trojan.Win32.Fsysna.gen
As Kaspersky should be doing real-time protection I don't know how this was allowed to get through to my computer.
Also, I have no idea what this trojan is as I can't find any information online. Has anybody else had this virus or know anything about it?
Prior to the scan that picked it up I did a back up to an external drive. When I scanned this the above trojan was not picked up. The back-up is an identical copy of the computer drive so if the scan is picking this trojan up on the computer I am puzzled why it failed to do so on the external drive copy.
Quite a few things seem puzzling. If anyone has any ideas please respond; it would be appreciated!