IL2CPP Games

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Introduction

 

>What is il2cpp?

From

https://blogs.unity3d.com/2015/05/06/an-introduction-to-ilcpp-internals/

The technology that we refer to as IL2CPP has two distinct parts.

• An ahead-of-time (AOT) compiler
• A runtime library to support the virtual machine

The AOT compiler translates Intermediate Language (IL), the low-level output from .NET compilers, to C++ source code. The runtime library provides services and abstractions like a garbage collector, platform-independent access to threads and files, and implementations of internal calls (native code which modifies managed data structures directly).

 

>Any support on this thread?

No.

 

Main Content

0. Before start to modding il2cpp, read

https://www.alphagamers.net/threads/report-il2cpp-apps-here.196901/

and try to see some dump already posted. The purpose is

Quote

"To get a feel of modding il2cpp games. :3"

 

-GiMPY, 2016

 

 

1. git clone/Download the source

https://github.com/Jumboperson/Il2CppDumper

2. Some important note before compiling

line 358
// These two pointers are the first two arguments passed to il2cpp::vm::MetadataCache::Register in the libil2cpp.so binary.
// Updating them manually should be fairly trivial, just find where il2cpp::vm::MetadataCache::Register is called and use the first two args for code and metadata respectively.
pCodeRegistration = (Il2CppCodeRegistration*)MapVATR(0x14860F8, pLibIl2Cpp);
pMetadataRegistration = (Il2CppMetadataRegistration*)MapVATR(0x14A7F78, pLibIl2Cpp);

The comment is straight forward, i dont have to explain it.

line 381
LoadMetadata("C:\\Projects\\Android\\PokeGo\\0.35.0\\assets\\bin\\Data\\Managed\\Metadata\\global-metadata.dat");

Well, its obvious that you (may) have to change this.

3. Compile.

4. Run it with `progname.exe > blabla.cs` since the output is directly written to stdout.

 

After words

Thanks to Pokemon Go massive development, the modding community isnt going to dead anytime soon(probably).

 

Quote "Dont be a script kiddie"

[0x00000000]> fo
-- This software comes with no brain included. Please use your own.

 

Credits

• John (JumboPerson) for his awesome Il2cpp dumper
• alphagamers.net