Device model
MacBook Pro 2014
Jun 27, 2018
MacOS High Sierra
Infection date and initial symptoms
Current issues and symptoms
Redirect from Google to Yahoo
Steps taken in order to remove the infection
Malwarebytes run. Restarted computer. Reinstalled browsers.
Yesterday, I typed in a search into my Chrome address bar, and the results popped up in Google (as per settings) and then suddenly redirected to Yahoo. I tried the Google homepage, same results. I went into preferences, Google was still my default, but I removed Yahoo as an option, same result. I ran Malwarebytes, same result (i've done this four times since yesterday). I tried Safari, same thing. I tried Firefox, same thing. I restarted, same thing. I uninstalled and reinstalled Firefox and Chrome, same thing. I do not make a habit of downloading free software, and I don't recall downloading anything around when this started.

I'm on a Mac running High Sierra.

Any help would be much appreciated.
Operating System and Version
OS high Sierra
Likes: BryanB