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.
AdwareSheriff,a clone of SpySheriff, is a fake spyware removal program. AdwareSheriff tries to trick the user into buying their product. AdwareSheriff issues fake warnings that cannot be dismissed without pressing the "Register" button. AdwareSheriff creates a shortcut in the Start Menu Startup folder to ensure it is launched and performs a scan at each system startup.
Technical details (How to remove AdwareSheriff(pop up))