Foreword The Flare-On Challenge is a single-player series of Reverse Engineering challenges, some of which are inspired from real-world problems faced by the mandiant team during their malware ...

On Windows, the operating system implements its own unique exception handling mechanisms — Structured Exception Handling (SEH) and Vectored Exception Handling (VEH) — which is an extension on top...

The Home Team Science and Technology Agency (HTX) invited me and my friends to compete alongside them in this year’s DEFCON Red Team Village. Although I didn’t get to fly to Las Vegas to experienc...

What are CTFs? 👾 CTFs are gamified cybersecurity competitions, where you solve different challenges for “flags”, or an answer of sorts! In true l33t hacker terms, this would be sort-of hacking an...

Welcome CTF is an annual CTF organized by NUS Greyhats. This beginner-friendly CTF is targetted at NUS Students who are keen in exploring the world of cybersecurity. This CTF consists of challenge...

I attended the first ever Vulnerability Research based cybersecurity conference in Singapore – Off By One organized by Star Labs, Eugene Lim and Sim Cher Boon – and had an amazing time! This confe...

I competed with NUS Greyhats in BrainHack CDDC 2024 Finals and we came out first ✌️ nus greyhats at cddc! Here are some brief writeups on some of the tasks I solved/attempted Pwn - SecretNote ...

For this year’s Cyberthon, I authored a Pwn Challenge The Forge inspired by the Star Wars theme, covering a slight twist to the simple conventional ROP challenges. I also authored a pwn challen...

This is a writeup on a Kernel Pwn challenge from Imaginary CTF 2023, and aims to introduce kernel pwn in a beginner-friendly manner. The beginner in ‘beginner-friendly’ refers to someone who has n...

Hello World! I’ve acquired a new domain at elmo.sg. Previously, I blogged on blog.caprinux.com. I have since migrated it to archive.elmo.sg and will be posting here instead from now on! I’m als...