Analyzing Firmware Images
Learn how to extract, analyze, and identify components within firmware images using tools like Binwalk.
What are Firmware Images?
Firmware is like the operating system for embedded devices. It's software permanently stored on hardware, controlling its basic functions. From your smart TV to your Wi-Fi router, firmware makes these devices work. Reverse engineering firmware helps us understand how they operate, find vulnerabilities, or even modify their behavior.
Firmware Everywhere
Firmware isn't just hidden inside devices. It's often distributed as update files that you can download from a manufacturer's website. These files are typically single binaries, sometimes compressed or encrypted. Common examples include router updates, IoT device patches, or even BIOS/UEFI updates for computers.