Terana.dll is a malicious file that is associated with performance of several truly annoying browser hijackers, such as Mystarting123, etc. This file will be used as the main application that will be hijacking the home page of your browsers and causing search engine redirection issues. Notice that the problems with terana.dll and associated browser-hijacking issues may take place with Google Chrome, Opera, Mozilla Firefox, Microsoft Edge and other browsers. Please carefully follow this guide that explains how to fix your system in an effective way.