Safari keeps redirecting to yahoo search engine

After about a year i have finally figured out how to solve this malware issue. here are the steps :

-GO TO : SAFARI>PREFERENCES>ADVANCED>PROXIES>CHANGE SETTINGS> THEN UNCHECK ALL BOXES, MAKE SURE NONE ARE CHECKED THEN APPLY.

-Also make sure u clear caches and history and downloads you dont recognize or need.

-Check extensions in safari>preferences>extensions and make sure all are deleted.

-Clear all windows and go to ur screen saver page, click "go" at top bar>go to folder> type ~/Library/ > click on folder that says "caches" and clear everything inside it, trash it all.

-Then go to "macintosh" under "devices" in side bar > click library> click cache>trash everything in the folder. Now empty ur trash. It should be gone after all these steps and ur mac should run a lot faster and have a lot more storage space, caches in the library take up an amazing amount of storage.

-You can also click on ur wifi>open network preferences>click on wifi>click on "-" button on the bottom>click "+" button > select "wifi">"apply"