Reversing an attack on firmware with a second stage payload:

Full writeup: [https://ctf.rip/write-ups/iot/firmware/wormcon-firm/#firm3](https://ctf.rip/write-ups/iot/firmware/wormcon-firm/#firm3)

Original writeup (https://ctf.rip/write-ups/iot/firmware/wormcon-firm/#firm3).