Reverse Engineering

IGS Arcade Reverse Engineering Series (4) - ASIC27 Protocol and Static Analysis of TSGROM Files

Monday, September 8, 2025

Embedded Architecture Analysis IGS’s anti-piracy technology isn’t particularly hard, but it’s extremely weird—probably because the code quality is terrible. …

IGS Arcade Reverse Engineering Series (3) - Getting a Shell

Monday, June 23, 2025

I’ve made quite a bit of progress lately, but I’ve hit a bottleneck. There are probably about three more posts’ worth of material. I’ve been very busy recently, so I’m publishing part three first. …

IGS Arcade Reverse Engineering Series (2) - Recovering Game Files

Sunday, May 25, 2025

In the previous post, I mentioned that the game has a protection mechanism that destroys partitions. In this post, we’ll dig deeper into it. …

IGS Arcade Reverse Engineering Series (1) - E2000 Platform Analysis

Saturday, May 17, 2025

Preface 2010 was the golden era of arcades. As mobile devices and home consoles became widespread, the arcade industry gradually declined. Although some policies were introduced domestically to encourage the amusement gaming equipment industry, the sector has long been out of favor with investors. The 2020 pandemic dealt an even heavier blow to the arcade business. …

General Tips for Firmware Reverse Engineering

Monday, August 15, 2022

Preface These notes were originally compiled years ago as a quick reference. They are somewhat fragmented and do not provide step-by-step procedures, but I continue to update them over time. …

Bypassing JVMTI-Based Encryption Protection

Monday, June 28, 2021

Research Process While researching a specific vehicle recently, I encountered a Windows application used to connect to a dealer intranet. …

Reverse Engineering a Campus Android App

Sunday, June 14, 2015

Preparation Phone: Google Nexus 5 Tools: …