I managed to run Easy Find two days ago and it found a few nasty things that Spotlight and Sophos missed.
Curiously, when I tried to run it again, I couldn’t remember how to select the hard drive I wanted it to scan. I tried pulling the hard drive into scan window but it wouldn’t take.
I managed somehow to get the alias for the drive in, which it scanned and came up with five files. But I couldn’t see the path anywhere so I could delete them.
Thank you for your help. I assure you I am not a complete idiot!