gfdac

Reverse Engineering on macOS

Some notes, tools, and techniques for reverse engineering macOS binaries.

Table of Contents

• Reverse Engineering Tools
  • Binary Ninja
• Ghidra

gfdac

Half-Life 2 on the Switch

This is a guide for running Half-Life 2 on your Switch. Please be aware that this isn't a great way of playing Half-Life 2 - do not expect this mod to work perfectly.

Thank you to Bringus Studios for fixing save files not showing up!

NOTE: I am assuming that you have basic knowledge about how modding games on the Switch works. I will not provide support for questions like "how do I install Atmosphère / CFW", "how do I make an emuMMC", "how do I extract games", etc. For help with modding your console, see the NH Switch Guide.

WARNING: While this mod should be fairly safe to use, I do not take any responsibility if your Portal save data is deleted, you get banned from Nintendo Switch Online, or if your Switch explodes.

gfdac

YouTube Live Chat Messages API Instructions

• The example URLs here use the Coding Trains channel ID: UCvjgXvBlbQiydffZU7m1_aw (replace this with your channel id)
• All of the API requests require a YouTube Data API key (no oauth required, just an API key)

Table of Contents

1. Request a list of live events
2. Use live video id to request live streaming details
3. Request live chat messages using the activeLiveChatId

gfdac

How to install game-porting-toolkit (aka proton for macOS)

You also might wanna just use Whisky which does this automatically

This guide works on macOS 13.4+ using Command Line Tools for XCode 15 Beta!

What is this?

In the recent WWDC, Apple announced and released the "game porting toolkit", which upon further inspection this is just a modified version of CrossOver's fork of wine which is a "compatibility layer" that allows you to run Windows applications on macOS and Linux.

gfdac

How to patch Android app to sniff its HTTPS traffic with self-signed certificate

• Download apktool from https://ibotpeaches.github.io/Apktool/
• Unpack apk file: java -jar /home/expert/work/tools/apktool.jar d [email protected]
• Modify AndroidManifest.xml by adding android:networkSecurityConfig="@xml/network_security_config" attribute to application element.
• Create file /res/xml/network_security_config.xml with following content:

<?xml version="1.0" encoding="utf-8"?>
<network-security-config>
    <base-config>

gfdac

const int kPortNumber = 52713;

class Connection : public InterprocessConnection
{
public:
	Connection()
	: InterprocessConnection(false, 15)
	{
	}

gfdac

const int kPortNumber = 52713;

class Connection : public InterprocessConnection
{
public:
	Connection(WaitableEvent& stop_signal)
	: InterprocessConnection(false, 15),
	  stop_signal_(stop_signal)
	{
	}

gfdac

use_bpm 120
midi_start

live_loop :clock do
  midi_clock_beat
  sleep 1
end

live_loop :kick do
  sample :bd_haus

gfdac

using System;
using System.Collections.Generic;
using System.Linq;
using System.Security.Cryptography;
using System.Text;
using System.Threading.Tasks;

namespace aes_example
{
    using System;

gfdac

import android.support.annotation.Nullable;
import android.util.Base64;

import java.nio.ByteBuffer;
import java.security.SecureRandom;

import javax.crypto.Cipher;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;