Reverse engineering a transmitter of field devices

Firmware is the backbone of most electronic components and devices. It is also known as embedded software and is responsible for controlling the behavior of devices. Firmware is used to define how the device should operate under various conditions, such as system operations, temperature, and environment. The first step to reverse engineer firmware is to create a copy of the existing firmware.

To do this, software is used to perform a read operation of the firmware, which allows a bit-for-bit memory image to be created. This memory image is then saved to a file for later analysis. Once the memory image has been created, it is analyzed by an automated tool using static binary analysis. This analysis will extract the program code, library functions, and other elements from the firmware. This provides a baseline for understanding the behavior of the firmware code as it is written. The next step is to perform a dynamic binary analysis...