Decompiling Java Jar
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Decompiling Java
Both Java and .NET use the idea of a "virtual machine," or VM. And while VMs are useful for some purposes, they undermine the security of your source code, because creation can be reversed, or decompiled. Which makes this one-of-a-kind book extremely useful: you must understand decompilation, to properly protect your intellectual property. For example, how secure is your code after you run an obfuscator? The book will answer questions like this, and provide more thorough information about Java byte codes and the Java Virtual Machine (JVM) than any other book on the market. This book redresses the imbalance by providing insights into the features and limitations of today's decompilers and obfuscators, and offering a detailed look at what JVMs actually do.
Decompiling Android
Decompiling Android looks at the the reason why Android apps can be decompiled to recover their source code, what it means to Android developers and how you can protect your code from prying eyes. This is also a good way to see how good and bad Android apps are constructed and how to learn from them in building your own apps. This is becoming an increasingly important topic as the Android marketplace grows and developers are unwittingly releasing the apps with lots of back doors allowing people to potentially obtain credit card information and database logins to back-end systems, as they don’t realize how easy it is to decompile their Android code. In depth examination of the Java and Android class file structures Tools and techniques for decompiling Android apps Tools and techniques for protecting your Android apps
From Day Zero to Zero Day
Find vulnerabilities before anyone else does. Zero days aren’t magic—they’re missed opportunities. From Day Zero to Zero Day teaches you how to find them before anyone else does. In this hands-on guide, award-winning white-hat hacker Eugene “Spaceraccoon” Lim breaks down the real-world process of vulnerability discovery. You’ll retrace the steps behind past CVEs, analyze open source and embedded targets, and build a repeatable workflow for uncovering critical flaws in code. Whether you’re new to vulnerability research or sharpening an existing skill set, this book will show you how to think—and work—like a bug hunter. You’ll learn how to: Identify promising targets across codebases, protocols, and file formats. Trace code paths with taint analysis and map attack surfaces with precision. Reverse engineer binaries using Ghidra, Frida, and angr. Apply coverage-guided fuzzing, symbolic execution, and variant analysis. Build and validate proof-of-concept exploits to demonstrate real-world impact. More than a toolkit, this is a window into how top vulnerability researchers approach the work. You’ll gain not just techniques but also the mindset to go deeper, ask better questions, and find what others miss. If you’re ready to stop reading write-ups and start writing them, From Day Zero to Zero Day is your guide.