#protocol-reversing CTF challenges
5 CTF challenges using protocol-reversing from 5 CTFs (2021–2026), 5 with writeups.
Often combined with
#threefish 1 #deterministic-simulation 1 #android 1 #jni 1 #unpacking 1 #anti-cheat 1 #big-endian 1 #utp 1 #dht 1
Challenges
Filter and sort these in the challenge browser →
| Challenge | CTF | Weight | Category | Has |
|---|---|---|---|---|
| arctic | Aero 2022 | 51.22 | Reverse | files wu 1 |
| Ehlel | Haruulzangi 2026 Quals | – | Reverse | files wu 1 |
| FLAPPY_BOARD | CSS 2026 | – | Reverse | files wu 1 |
| Chibile | SekaiCTF 2026 | 79.25 | Reverse | files wu 1 |
| AdSpam | GoogleCTF 2021 | – | Reverse | files wu 1 |