USBdriveby is a device designed to quickly and covertly install a backdoor and override DNS settings on an unlocked machine via USB. Pre-programmed Teensy microcontroller emulates a generic USB peripheral, like a keyboard or a mouse, when plugged into a machine. Attack is very insidious because it doesnt request any additional permissions to run applications and without the target machine is able to detect any suspicious activity. Attack can be easily modified to compromise Windows and Unix/Linux systems.”]
Source: https://securityaffairs.co/wordpress/31283/hacking/usbdriveby-hacking-pc-via-usb.html