When you are prompted by an “Application Whitelisting” pop-up window for any unknown file that is trying to run, first check whether the file is signed. Then click on the “More >>” button in the pop-up window to view more details. It will show you the file is being run by which application. If you are not running any application and yet you receive such prompt, there is a high chance that this application is harmful or may even be a malware that may infect your computer. It is therefore advisable not to trust it.