Reading code that was built to resist reading — how obfuscation works, why every layer is reversible, and the techniques used to recover the original logic.
Deobfuscation is the process of turning deliberately unreadable code back into something a human can read and reason about.
Devirtualization is the process of recovering a readable program from JavaScript that has been compiled into a tiny interpreter — a virtual machine — bundled inside the script itse.
Lua bytecode virtualization is an obfuscation technique that replaces Lua's standard virtual machine with a custom, secret one, so the compiled script can only be run by an interpr.
Lua obfuscation is the practice of rewriting a script so it still runs identically but actively resists reverse-engineering tools, ranging from cheap constant-hiding tricks up to f.
Dual-VM Lua obfuscation runs your program through two stacked virtual machines - a deserialization VM that decodes an encrypted blob into an instruction stream, and a "real" VM tha.
A deserialization VM is the outer virtual machine in a stacked virtualizer that turns an encrypted data blob into the instruction stream the real VM executes, while enforcing anti-.
Polymorphic bytecode is virtual-machine code that rewrites its own instructions at runtime before executing them, so the statically dumped instruction stream is intentionally misle.
Dynamic IAT resolution (import hashing) is an anti-analysis technique where a binary hides which OS APIs it uses by resolving them at runtime from numeric hashes instead of listing.
Instrumenting a browser means adding observation points so you can watch exactly which APIs a page calls -- which is how researchers study fingerprinting and anti-bot scripts.
A browser extension content script runs in an "isolated world" -- a separate JavaScript execution context that shares the DOM with the page but has its own global object.
addScriptToEvaluateOnNewDocument is a Chrome DevTools Protocol (CDP) command that registers JavaScript to run in the page's own context immediately after a document is created, bef.
An out-of-process iframe (OOPIF) is a cross-origin frame that Chromium runs in its own renderer process, with its own isolated JavaScript context.
Calling toString() on a native browser function returns a fixed marker -- "function name() { [native code] }" -- while a JavaScript wrapper returns its actual source code.
Engine-level instrumentation means adding observation points inside the browser's C++ rendering engine (Blink), below the JavaScript layer, instead of patching functions in JavaScr.