PUP.Optional.Wajam is the detection name for Wajam, a browser add-on marketed as a “social search.”
PUP.Optional.MirageISO is the detection for an ad-supported potentially unwanted program (PUP) that allows you to mount ISO files as a drive.
ImageISo is usually installed as part of a bundler.
Malwarebytes can remove this potentially unwanted software without further user interaction. Should users wish to keep it, they can add the detections to the exclusions list. Here’s how to do it.