PUP.Optional.Wajam is the detection name for Wajam, a browser add-on marketed as a “social search.”
Amigo is a browser that is often included in bundlers aimed at the Russian market. Malwarebytes detects it as PUP.Optional.Amigo.
Malwarebytes can remove PUP.Optional.Amigo 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.