PUP.Optional.Wajam is the detection name for Wajam, a browser add-on marketed as a “social search.”
PUP.Optional.Somoto is a Potentially Unwanted Program (PUP), specifically a browser hijacker. Some also categorize this as adware. It is difficult to remove as it uses a form of locking mechanism, which prevents itself from being fully uninstalled from an infected system through traditional means.
PUP.Optional.Somoto comes bundled with other programs. It can be downloaded with software hosted on third-party software providers. It installs itself as a browser helper object.
Malwarebytes completely removes this threat. No further clean up is required.