DefaultFormat

DefaultFormat is a browser hijacker application that takes control of your Web browser and search engine and changes its settings so that it can deliver countless unwanted advertisements on the Mac devices of its victims. Like any other browser hijackers, DefaultFormat usually may enter a PC as part of a software bundle that combines two or more freeware applications into one installation process. The result of this combination is that you may get many unwanted and harmful applications alongside the one you were looking for.

Having a browser hijacker like DefaultFormat running on your computer, you will endure intrusive advertisements, pop-up messages, system warnings or banners appearing on your screen non-top. It will slow down your machine significantly. It also may trick you into installing other malware, for example, by creating a window that prompts you to update your Adobe Flash player. Some browser hijacker programs may cause redirects to potentially unsafe sponsored websites or collect users' data. Another consequence caused by DefaultFormat could be a sudden and undesired change in your browser settings. DefaultFormat may replace your homepage and browser's default search engine, so each time you launch your browser, it will open an unfamiliar URL. You also may notice unknown browser extensions, toolbars or plugins.

DefaultFormat drops its corrupted files and folders on various locations, which may affect the system on many levels. This is why manual removal could be tricky. Security researchers recommend using a reliable anti-malware program to clean your device thoroughly.