Do-Search.com is the homepage hijacker which is installed by browser extensions or addons. This homepage hijacker is bundled with freeware to promote Do-Search.com Search and to make money using advertisements within the search results. Once this Do-Search.com browser hijacker is installed on your computer, the default search engine and homepage for Internet Explorer, Google Chrome or Mozilla Firefox is replaced with Do-Search.com. This Do-Search.com homepage is not malicious process itself and may not be called a virus, but it does change security settings within your favorite browser and is distributed by freeware. Do-Search.com also hijacks the shortcut of your favorite browser and adds a extra do-search.com argument behind the executable. By doing this hijacking the do-search.com website always opens when you open the browser, even as you replaced your default homepage with a website of your choice. It’s a very nifty and nasty method of forcing to drive web-traffic to there website.
Please be aware what you install on your computer. The Do-Search.com browser hijacker is most likely installed by the computer user itself because it’s offered during the installation process.