An annoying virus that infects your pc or phone giving you ads and popups and is gotten mainly from piracy sites suchas
romsmania, coolrom, gamefabrique, and the famous torrent clients uTorrent and Bittorrent and youtubers that use
adfly links.
Some examples of adware include:
WebHelper
Webdiscover
Webnavigator
Lavasoft Adaware (when installed by unknown source)
Any romsmania download on android