MyStarting123.com is a potentially unwanted program that modifies the home page of your installed browsers. When installed, this program will modify the browser configuration so that it automatically uses the site mystarting123.com as its home page and search provider. This causes your browser to automatically open mystarting123.com when the browser opens. Furthermore, when a user searches from the address bar, it will redirect the searches first to mystarting123.com, and then on to Yahoo.
This article was published first at Remove the MyStarting123.com Home Page
Source: Bleeping Virus