The Yeabests.cc browser hijacker, otherwise known as TopYea, is an infection from the Adware/ShortcutHijacker family of browser hijackers that is bundled with other free software that you download off of the Internet. When installed it will change shortcuts for your installed browsers so that they automatically open the web site Yeabest.cc. This means that when a web page opens, it will show a search engine called Top.Yea. When a page opens it will also automatically open a Top.cc search engine. This is because the YeaBests.cc. program installs itself as a WMI script that when activated automatically adds them back.
Source: https://www.bleepingcomputer.com/virus-removal/remove-yeabests.cc-topyea-browser-hijacker