A spy pixel which can be emedded into web pages or emails.

Welcome to the page where you will find each trick/technique/whatever I have learnt in CTFs, real life apps, and reading researches and news.

Grok open release

GEF (GDB Enhanced Features) - a modern experience for GDB with advanced debugging capabilities for exploit devs & reverse engineers on Linux

An nsjail Docker image for CTF pwnables. Easily create secure, isolated xinetd/inetd-style services.

A webapp to visualize relationships among Chinese characters and to see example sentences that illustrate their use. Also available for Japanese learners.

A repository for learning various heap exploitation techniques.

Linux Binary Exploitation

My notes on pwn

Guide on using Radare2

Guide on using GDB

Cyber Training Guide: Binex Low-level Programming