Getting infected with adware and browser hijacker is not good for PC security because it shows flood of Go.gravenfun.com pop-up ads on browsed web pages. It shares your click for commercial purpose. Displayed ads windows have pay per click service and each hit on them may refer some money in hackers’ account. You are being redirected to third party web pages to increase number of visitors and bring them in ranking. It claims to enhance your browsing performance and search filter but this is not the fact. All it want to take you sponsored web pages and redirect you to third party web pages without taking much time. Go.gravenfun.com pop-up ads should be removed completely by eradicating all the harmful and irrelevant components immediately either with manual method or automatic Go.gravenfun.com pop-up removal tool given below.
http://www.pcinfectionremovalguide.net/download-spyhunter