If you are getting notifications from EasyBoost, then your Mac is infected with adware. EasyBoost is adware for Mac.
EasyBoost changes setting in your Mac. First, EasyBoost installs a browser extension in your browser. Then, after EasyBoost hijacks your browser, it modifies settings in the browser. For example, it changes the default home page, modifies search results, and displays unwanted pop-ups in your browser.