The targeted device is the ConnectPort X2e made by Digi International, a US-based company that provides IT, networking and IoT solutions for industrial, enterprise and smart city applications. FireEye conducted its research on a version of the device offered by Tesla under the SolarCity brand — Tesla acquired solar panel maker SolarCity in 2016.
The X2e device is a programmable gateway used for residential and small commercial solar installations. It’s typically used to read data from a solar inverter and provide a connection to cloud-based applications.
