IMO if you want to avoid the risk of getting a PUA or PUP in the installer, then you shouldn't use Softonic, and CNet/download.com. The best is to go straight to the vendor/author's website, the sites I use in order are Majorgeeks, Softpedia, etc....
That's a PITA you will have to live with as ESET is just doing what you expect it to do when you got the PUA and/or PUP detection enabled, stopping them at the front door.