IL2CPP Internals:

• An Introduction
• What is IL2CPP?
• How is il2cpp.exe executed?
• What does IL2CPP not do?
• A Tour of Generated Code
• How managed code maps to generated C++ code
• Few interesting things about all methods converted by il2cpp.exe
• Method prologues
• Runtime checks
• Static Fields
• Goto!?
• Debugging tips for generated code
• Viewing strings
• Viewing user defined types
• Method calls
• Calling a method directly
• Calling a method via an interface
• Generic sharing implementation
• What is shared by IL2CPP?
• Generic sharing for reference types
• Generic sharing with constraints
• Generic sharing with value types
• P/Invoke Wrappers
• Why do we need marshaling?
• Marshaling a non-blittable type
• Marshaling a non-blittable user defined type
• Garbage collector integration
• Adding thread local variables as roots

Il2CPP Reverse:

• Part 1: Hello World and the IL2CPP Toolchain
• Il2cpp codegen add handles
• Using IL2CPP to generate code
• Using IL2CPP on the command-line
• Part 2: Structural Overview & Finding the Metadata
• Starting with a clean slate
• Examining the binary
• Finding binary metadata in the wild
• More techniques for finding binary metadata

Tutorial:

• Finding loaders for obfuscated global-metadata.dat files
• Metadata loader code path
• Finding the metadata loader: Simplest case
• Finding the metadata loader: What if there is no il2cpp_init?
• Real-world examples
• Decoy global-metadata.dat file (Tale of Immortal / 鬼谷八荒)
• No global-metadata.dat file (Guardian Tales / 가디언-테일즈)
• Going in dry (Genshin Impact)

Adventures:

• Brute-force function search, or how to crack Genshin Impact with PowerShell
• Watch out, it’s the fuzz!
• Host in the shell
• Stop! In The Name of Mov
• In League with The /dev/null
• We came, we predicted, we scripted and decrypted

Honkai Impact:

• Honkai Impact 3rd (Houkai 3) (IL2CPP) (Part 1)
• Surveying the battlefield
• To the trenches!
• Threading the needle
• Sharpen your knives
• Honkai Impact 3rd (IDA Decompiler Techniques) (Part 2)
• Here is some toothpaste, put it back in the tube
• Get busy
• A good reference
• Cast aside
• I guess I didn’t know
• Honkai Impact 3rd (Part 3)
• Flipping the coin/li>
• Take me literally, not seriously
• Are we nearly there yet?