Platypwn CTF 2025 – Full Write-Up
A detailed, replicable walkthrough of all Platypwn CTF 2025 challenges I solved, including four blockchain challenges—my first real dive into smart contract exploitation.
Under the Appl3Tree
API Penetration Testing Course & ASCP Certification Review
AppleTree's detailed review of APISec University's API Penetration Testing course and API Security Certified Professional (ASCP) exam.
OffSec PEN-103 & KLCP Certification Review
AppleTree's detailed review of the PEN-103 course and the KLCP certification exam.
OffSec PEN-200 & OSCP Certification Review
AppleTree's detailed review of OffSec's PEN-200 course and the OSCP certification exam.
OffSec SEC-100 & OSCC-Sec Certification Review
AppleTree's detailed review of OffSec's SEC-100 CyberCore course and OSCC-Sec certification exam.
OffSec PEN-210 & OSWP Certification Review
AppleTree's detailed review of OffSec's PEN-210 course and the OSWP certification exam.
Security Blue Team BTL1 Course & Certification Review
AppleTree's detailed review of Security Blue Team's BTL1 course and certification exam.
BrunnerCTF 2025 — Write-up
Walkthrough of the BrunnerCTF 2025 challenges I solved as part of team APISec Avengers
OffSec TH-200 & OSTH Certification Review
AppleTree's detailed review of OffSec's Threat Hunting course (TH-200) and OSTH certification exam.
WHY2025 CTF Write-up
Full write-up of completed challenges in WHY2025 CTF.