Is 'Boost' a feature or a virus? The app 'File Manager' now has a new look, a look that has more of a virus feel and lees of an 'android' feel. Force stopping file manager gets rid of the addition to the notification bar thingy and removes the app icon from the top of my screen. Sorry if I sound like I don't know anything about android, that's because its true. Thank you for the help!
If it came preinstalled it is not a "virus" I wouldn't trust any boost apps on play store but usually these apps kill background processes to free up RAM and CPU resources. Actual results may vary but if it is an default/bloat app it is not inherently harmful. To check if it is a phone app, check its info in the App Manager.