Buddy, you just installed something called an Adware aka browser hijackers. Pretty much in short terms, advertisements that invades your browser and can legitimately steal your information on what you browsed and what you entered. It is a virus and I do recommend getting it removed ASAP if you don't want any further information on you gathered by strangers.
Here's something you can use.
https://toolslib.net/downloads/viewdownload/1-adwcleaner/ |