config.dat file is dangerous file, which belongs to AntiSpyStorm virus. It's a cyber infection, which tries to create a need of its licensed version. For that it displays fake alerts and then, after creating a need of its licensed version, offers purchasing it for some fee. Of course, AntiSpy Storm has an empty virus data base and can hardly fix any computer. All what it does is trying to scare its victims and make them reveal their credit card details. Please, do NOT pay for AntiSpyStorm and other questionable security tools because they are useless! You should waste no time and remove this virus using Reimage.
As soon as AntiSpyStorm enters computer, it installs config.dat file. This file is mostly used for degrading system's performance by displaying commercial advertisements, slowing the system down and initiating other annoying activities. However, it can also try to infect your important files, corrupt installed software and violate your privacy. If you noticed config.dat file in your PC system, you should remove this file. For that we recommend using RegCure Pro.