PUP.Optional.Wajam is the detection name for Wajam, a browser add-on marketed as a “social search.”
Vosteran is a browser hijacker that usually comes in the form of a browser extension. It targets Google Chrome, Mozilla Firefox, Internet Explorer, and Opera and changes the start page and search engine settings.
Vosteran used to bundle their own browser with other software.
Vosteran is usually installed by the users themselves, whether as a standalone extension or bundled with other software.
A removal guide for Vosteran can be found on our forums
Sometimes removal may require extra user intervention. If so, visit our Restore your browser page.