# WHY2025 CTF

Link: [https://ctf.why2025.org/home](<https://ctf.why2025.org/home>)

CTFTime: [https://ctftime.org/event/2680](<https://ctftime.org/event/2680>)

Result: 1600 Points, 140th Place

Solved Challenges:

Crypto:

- [Somkracht 65537](<https://jia.je/ctf-writeups/2025-08-08-why2025/crypto/somkracht-65537.html>)
- [Substitute Teacher](<https://jia.je/ctf-writeups/2025-08-08-why2025/crypto/substitute-teacher.html>)

Forensics:

- [Painted Black](<https://jia.je/ctf-writeups/2025-08-08-why2025/forensics/painted-black.html>)
- [The Wizard](<https://jia.je/ctf-writeups/2025-08-08-why2025/forensics/the-wizard.html>)

Misc:

- [Just One Line](<https://jia.je/ctf-writeups/2025-08-08-why2025/misc/just-one-line.html>)
- [Twenty Three Drivers](<https://jia.je/ctf-writeups/2025-08-08-why2025/misc/twenty-three-drivers.html>)

Network:

- [Captcha 2.0](<https://jia.je/ctf-writeups/2025-08-08-why2025/network/captcha-2.0.html>)
- [Ransomware Attack](<https://jia.je/ctf-writeups/2025-08-08-why2025/network/ransomware-attack.html>)
- [Scan Me](<https://jia.je/ctf-writeups/2025-08-08-why2025/network/scan-me.html>)

Pwnable:

- [3 Ball Mark](<https://jia.je/ctf-writeups/2025-08-08-why2025/pwnable/3-ball-mark.html>)
- [Lazy Code 1.0](<https://jia.je/ctf-writeups/2025-08-08-why2025/pwnable/lazy-code-1.0.html>)
- [Lazy Code 2.0](<https://jia.je/ctf-writeups/2025-08-08-why2025/pwnable/lazy-code-2.0.html>)
- [Old Memes Never Die](<https://jia.je/ctf-writeups/2025-08-08-why2025/pwnable/old-memes-never-die.html>)
- [Simple AI Bot](<https://jia.je/ctf-writeups/2025-08-08-why2025/pwnable/simple-ai-bot.html>)

Web:

- [Buster](<https://jia.je/ctf-writeups/2025-08-08-why2025/web/buster.html>)
- [Planets](<https://jia.je/ctf-writeups/2025-08-08-why2025/web/planets.html>)
- [Shoe Shop 1.0](<https://jia.je/ctf-writeups/2025-08-08-why2025/web/shoe-shop-1.0.html>)
- [WHY2025 CTF Times](<https://jia.je/ctf-writeups/2025-08-08-why2025/web/why2025-ctf-times.html>)

Solved after the competition:

- [TitleCase](<https://jia.je/ctf-writeups/2025-08-08-why2025/misc/title-case.html>)