Frida

Frida Internals

frida-gum is a cross-platform instrumentation and introspection library written in C. This library is consumed by frida-core through its JavaScript bindings, GumJS. See official documentation for more details and possible providers. The following example shows how to use frida-gum for standalone injection; specifically via iOS dylib injection.

Prototyping with Fermion

Fermion is an electron application that wraps frida-node and monaco-editor. It offers a fully integrated environment to prototype, test and refine Frida scripts through a single UI. With the integration of Monaco come all the features you would expect from Visual Studio Code: Linting, IntelliSense, keybindings, etc. In addition, Fermion has a TypeScript language definition for the Frida API so it is easy to write Frida scripts.

Frida Scripting

It’s recommended to develop Frida scripts using TypeScript, which contains code auto-completion and instant type-checking feedback. The TypeScript is typically compiled to a final Javascript file agent.js.

$ git clone https://github.com/oleavr/frida-agent-example.git my-new-script
$ cd my-new-script/
$ npm install
$ npm run watch
$ frida -U -f com.durakiconsulting.com --no-pause -l _agent.js

Scripts Directory

• FridaLib - iOS/android frida library for reversing
• Android/Windows Scripts - Random Frida scripts for Android and WinNT

Frida Stalker

Scripts Dictionary

• Interruptor - Human-friendly interrupts hook library based on Frida’s Stalker

Tools of Trades

• vscode-frida is recommended if you are using VSCode