Ads by Wajam is adware related “malware” which is installed by the Wajam browser extension or addon. This adware is bundled with freeware to promote Wajam Search and affiliate links and to make money using advertisements within the search results. Once this Ads by Wajam adware is installed on your computer, the default search engine and homepage for Internet Explorer, Google Chrome or Mozilla Firefox is replaced with Wajam homepage. This Ads by Wajam 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.
It is advised to always read the Terms and Agreements before installing software on your computer. Do never click too fast thru the installation process [Next] button of software as you will agree to software you might not want to install. If the installer offers a Advanced or Custom option button, click it to find out if there is any other malicious software offered and installed during the installation process.