To successfully reverse engineer a Unity game compiled with the backend, you must understand how to access its structural blueprint. By default, the application's entire codebase structure—such as class names, methods, fields, and string literals—is packed into a file named global-metadata.dat .
It looks like it could be a misspelling of globalmetadata.dat (a common metadata file extension, e.g., in Valve's Steam or certain game engines). The extra dat at the end ( globalmetadatadat ) suggests a duplication.
The string globalmetadatadat serves as a mnemonic for future engineers: When you design a protocol, the metadata is the message. decrypt globalmetadatadat
This script hooks into the il2cpp functions that read the metadata, capturing it once decrypted in memory. Method 2: Il2CppDumper
Developers and commercial mobile application security wrappers (like Shizuku, SecuInside, or Medusa) employ several methods to prevent static parsing tools from reading the file: To successfully reverse engineer a Unity game compiled
Are you aware of any used on the game (like APKProtect, SecuEngine, or VMProtect)? Share public link
The script scans the memory map for the authentic 0xAF1BB1FA magic bytes, determines the real buffer size, and saves a perfectly decrypted global-metadata.dat file directly onto your machine. The extra dat at the end ( globalmetadatadat
Once the script identifies the magic signature in RAM, it determines the start address and the size of the decrypted buffer.
A popular tool for this is Il2CppMetadataExtractor , a Frida script that is easy to use for this purpose. The script automates the process of locating the global-metadata.dat within the application’s memory and dumping a clean copy. It operates in two primary modes: