PUP.Optional.Wajam is the detection name for Wajam, a browser add-on marketed as a “social search.”
PUP.Optional.ModGoog is a potentially unwanted program (PUP), specifically a fake Google updater. Some categorize such software as adware. PUP.Optional.ModGoog usually comes bundled with other applications that Malwarebytes detect as PUP.Optional.Crossrider. As such, removing Crossrider software also removes this PUP.
PUP.Optional.ModGoog comes bundled with other programs. It can be downloaded with software hosted on third-party software providers.
Below are removal instructions for specific software Malwarebytes detects as PUP.Optional.Crossrider that also installs PUP.Optional.ModGoog:
Malwarebytes completely removes this threat. No further cleanup required.