Win7 source control USB running Trojan virus nowhere to invade

In many cases, Trojan virus will attack the system in various ways, USB automatic installation is a way, many users will prohibit its automatic playback to avoid viruses, but Can not be controlled from the source, in the win7 system, we can use the system's unique permission control technology to isolate the virus invasion.

First enter the X:/Windows/inf directory (X: the partition letter of Win7), find the two files usbport.PNF and usbstor.PNF, respectively, and then the corresponding group or User attribute security permissions are set to deny.

Take usbport.PNF as an example:

Right-click the usbport.PNF file, switch to the Security tab in the pop-up dialog box, click the Edit button, and then default to the system. The full control permission of the group or user SYSTEM is set to reject. (www.xitongzhijia.net)

Tip: Although this method can control the self-installation of USB devices from the source, when you plug the device into the host computer, the system will be installed and dumb, for your insertion. The behavior does not respond. It is recommended that you can upgrade the permissions for your favorite users to give them full control, while the normal user permissions are modified to reject, thus achieving a workaround.

After the USB device is plugged into the host computer, the system will prompt that the device is ready for use. This process is the process of the system identifying and installing the driver for the USB device. This process is often a way for the Trojan virus to invade the system. In order to prevent it from happening, users can try it out.