InstallCore is a family of bundlers that installs more than one application on the user’s computer, usually by combining a popular title with one or more adware. The developer behind InstallCore is ironSource, a company that builds monetization, engagement, analytics, and discovery tools for app developers, device manufacturers, mobile carriers, and advertisers. InstallCore is available for Windows and Mac systems.
Malwarebytes can remove this threat without further user interaction. If the bundler has been active on the affected system, you can expect more detections for Potentially Unwanted Programs (PUPs) and adware.