Adware is classified as a low-level threat that can be easily removed, however, it is very annoying by means of advertisement distribution that is occasionally displayed on the screen. These undesirable visits can force raw users into inadvertently downloading adware on their computers. On the surface, ads look very appealing and positive, but this is a cover used to tantalize users into clicking on them that may eventually result in a chain of malicious resources like landing pages, free file hosting websites and other unwanted ones. Initially, it is a marketing domain used by Google for displaying a wide range of different ads. Although Google ads editors moderate the quality of advertisers, very often this platform is used by unscrupulous vendors.

Ad. is a legitimate advertising service, that, in some cases, can be related to adware.