a program that is automatically downloaded into the machine and can be triggered by simply visiting a Web site or viewing an HTML email message
a program that is automatically downloaded to your adware eliminator free spyware often without your consent or even your knowledge
Software that installs on your computer without your knowledge when you visit certain websites. To avoid drive-by downloads, make sure to update your operating system and Web browser regularly.
software, usually adware or spyware, that installs itself without any action on the part of the user
The downloading of one or more malware programs triggered by a user simply visiting a particular website; the user has no knowledge of the download taking place.
When programs are downloaded without the user's knowledge or consent. Most often accomplished when the user clicks to close or eliminate a random advertisement or other dialogue box.
Installing malware or potentially unwanted programs merely by viewing an e-mail or Web page on an improperly patched system.