Adware:Adware (or spyware) is a small program that is designed to show advertisements (in various form and degrees of intrusiveness) on your computer. It often reports personal information back to its owners. As a result your sense of privacy can be violated.
This illegal advertising application belongs to the adware category. It is designed to receive and show relevant commercial advertisements in many pop-ups, web browser windows or toolbars. Track4.com can be secretly installed to the computer while visiting some insecure web sites. It also may be distributed along with some ad-supported software. The threat alters computer or browser configuration, so it could start on every Windows startup and secretly work in background. Track4.com violates user privacy and may decrease overall PC performance.
Technical details (How to remove Track4.com(pop up))