These pop-ups are designed to trick users into downloading and installing the Mac Auto Fixer potentially unwanted application. When browsing the internet, they are presented with a pop-up ad stating that they need to update Flash player, or that their Mac is infected with 3 viruses. Mac Auto Fixer installs commonly installs on users' computers without their consent.
Mac Auto Fixer is a potentially unwanted application similar to Advanced Mac Cleaner, Mac Tonic, and Mac Mechanic. Developers of this application use a deceptive marketing method called 'bundling' to proliferate this software.