Example #1
0
        private static bool Init(string il2cppPath, string metadataPath, string nameTranslationPath, out Metadata metadata, out Il2Cpp il2Cpp)
        {
            Console.WriteLine("Initializing metadata...");
            var metadataBytes = File.ReadAllBytes(metadataPath);

            var stringDecryptionInfo = MetadataDecryption.DecryptMetadata(metadataBytes);

            metadata = new Metadata(new MemoryStream(metadataBytes), stringDecryptionInfo, nameTranslationPath);
            Console.WriteLine($"Metadata Version: {metadata.Version}");

            Console.WriteLine("Initializing il2cpp file...");
            var il2cppBytes  = File.ReadAllBytes(il2cppPath);
            var il2cppMagic  = BitConverter.ToUInt32(il2cppBytes, 0);
            var il2CppMemory = new MemoryStream(il2cppBytes);

            switch (il2cppMagic)
            {
            default:
                throw new NotSupportedException("ERROR: il2cpp file not supported.");

            case 0x6D736100:
                var web = new WebAssembly(il2CppMemory);
                il2Cpp = web.CreateMemory();
                break;

            case 0x304F534E:
                var nso = new NSO(il2CppMemory);
                il2Cpp = nso.UnCompress();
                break;

            case 0x905A4D:     //PE
                il2Cpp = new PE(il2CppMemory);
                break;

            case 0x464c457f:             //ELF
                if (il2cppBytes[4] == 2) //ELF64
                {
                    il2Cpp = new Elf64(il2CppMemory);
                }
                else
                {
                    il2Cpp = new Elf(il2CppMemory);
                }
                break;

            case 0xCAFEBABE:     //FAT Mach-O
            case 0xBEBAFECA:
                var machofat = new MachoFat(new MemoryStream(il2cppBytes));
                Console.Write("Select Platform: ");
                for (var i = 0; i < machofat.fats.Length; i++)
                {
                    var fat = machofat.fats[i];
                    Console.Write(fat.magic == 0xFEEDFACF ? $"{i + 1}.64bit " : $"{i + 1}.32bit ");
                }
                Console.WriteLine();
                var key   = Console.ReadKey(true);
                var index = int.Parse(key.KeyChar.ToString()) - 1;
                var magic = machofat.fats[index % 2].magic;
                il2cppBytes  = machofat.GetMacho(index % 2);
                il2CppMemory = new MemoryStream(il2cppBytes);
                if (magic == 0xFEEDFACF)
                {
                    goto case 0xFEEDFACF;
                }
                else
                {
                    goto case 0xFEEDFACE;
                }

            case 0xFEEDFACF:     // 64bit Mach-O
                il2Cpp = new Macho64(il2CppMemory);
                break;

            case 0xFEEDFACE:     // 32bit Mach-O
                il2Cpp = new Macho(il2CppMemory);
                break;
            }
            var version = config.ForceIl2CppVersion ? config.ForceVersion : metadata.Version;

            il2Cpp.SetProperties(version, metadata.maxMetadataUsages);
            Console.WriteLine($"Il2Cpp Version: {il2Cpp.Version}");
            if (il2Cpp.Version >= 27 && il2Cpp is ElfBase elf && elf.IsDumped)
            {
                Console.WriteLine("Input global-metadata.dat dump address:");
                metadata.Address = Convert.ToUInt64(Console.ReadLine(), 16);
            }


            Console.WriteLine("Searching...");
            try
            {
                //var flag = il2Cpp.PlusSearch(metadata.methodDefs.Count(x => x.methodIndex >= 0), metadata.typeDefs.Length);
                var flag = false;
                if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
                {
                    if (!flag && il2Cpp is PE)
                    {
                        Console.WriteLine("Use custom PE loader");
                        il2Cpp = PELoader.Load(il2cppPath);
                        il2Cpp.SetProperties(version, metadata.maxMetadataUsages);
                        //flag = il2Cpp.PlusSearch(metadata.methodDefs.Count(x => x.methodIndex >= 0), metadata.typeDefs.Length);
                    }
                }

                /*if (!flag)
                 * {
                 *  flag = il2Cpp.Search();
                 * }
                 * if (!flag)
                 * {
                 *  flag = il2Cpp.SymbolSearch();
                 * }*/
                if (true)
                {
                    /*Console.WriteLine("ERROR: Can't use auto mode to process file, try manual mode.");
                     * Console.Write("Input CodeRegistration: ");
                     * var codeRegistration = Convert.ToUInt64(Console.ReadLine(), 16);
                     * Console.Write("Input MetadataRegistration: ");
                     * var metadataRegistration = Convert.ToUInt64(Console.ReadLine(), 16);*/
                    ProcessModuleCollection pms = Process.GetCurrentProcess().Modules;
                    ulong         baseaddr      = 0;
                    ProcessModule targetModule  = null;
                    foreach (ProcessModule pm in pms)
                    {
                        if (pm.ModuleName == "UserAssembly.dll")
                        {
                            baseaddr     = (ulong)pm.BaseAddress;
                            targetModule = pm;
                            break;
                        }
                    }
                    Console.WriteLine("baseadr: 0x" + baseaddr.ToString("x2"));

                    ulong codeRegistration     = 0;
                    ulong metadataRegistration = 0;

                    // custom search
                    // searching .text for the following pattern:
                    // lea r8,  [rip+0x????????]
                    // lea rdx, [rip+0x????????]
                    // lea rcx, [rip+0x????????]
                    // jmp [rip+0x????????]
                    // or...
                    // 4c 8d 05 ?? ?? ?? ??
                    // 48 8d 15 ?? ?? ?? ??
                    // 48 8d 0d ?? ?? ?? ??
                    // e9
                    // 22 bytes long

                    // .text is always the first section
                    var text_start = ((PE)il2Cpp).Sections[0].VirtualAddress + baseaddr;
                    var text_end   = text_start + ((PE)il2Cpp).Sections[0].VirtualSize;

                    // functions are always aligned to 16 bytes
                    const int patternLength = 22;
                    byte[]    d             = new byte[patternLength];
                    for (ulong ptr = text_start; ptr < text_end - patternLength; ptr += 0x10)
                    {
                        Marshal.Copy((IntPtr)ptr, d, 0, patternLength);
                        if (
                            d[0] == 0x4C && d[1] == 0x8D && d[2] == 0x05 &&
                            d[7] == 0x48 && d[8] == 0x8D && d[9] == 0x15 &&
                            d[14] == 0x48 && d[15] == 0x8D && d[16] == 0x0D &&
                            d[21] == 0xE9
                            )
                        {
                            codeRegistration     = ptr + 21 + BitConverter.ToUInt32(d, 14 + 3);
                            metadataRegistration = ptr + 14 + BitConverter.ToUInt32(d, 7 + 3);
                            Console.WriteLine($"Found the offsets! codeRegistration: 0x{(codeRegistration - baseaddr).ToString("X2")}, metadataRegistration: 0x{(metadataRegistration - baseaddr).ToString("X2")}");
                            break;
                        }
                    }

                    if (codeRegistration == 0 && metadataRegistration == 0)
                    {
                        Console.WriteLine("Failed to find CodeRegistration and MetadataRegistration, go yell at Khang");
                        return(false);
                    }

                    il2Cpp.Init(codeRegistration, metadataRegistration);
                    return(true);
                }
            }
            catch (Exception e)
            {
                Console.WriteLine(e);
                Console.WriteLine("ERROR: An error occurred while processing.");
                return(false);
            }
            return(true);
        }
Example #2
0
        private static bool Init(string il2cppPath, string metadataPath, out Metadata metadata, out Il2Cpp il2Cpp)
        {
            Console.WriteLine("Initializing metadata...");
            var metadataBytes = File.ReadAllBytes(metadataPath);

            metadata = new Metadata(new MemoryStream(metadataBytes));
            Console.WriteLine($"Metadata Version: {metadata.Version}");

            Console.WriteLine("Initializing il2cpp file...");
            var il2cppBytes  = File.ReadAllBytes(il2cppPath);
            var il2cppMagic  = BitConverter.ToUInt32(il2cppBytes, 0);
            var il2CppMemory = new MemoryStream(il2cppBytes);

            switch (il2cppMagic)
            {
            default:
                throw new NotSupportedException("ERROR: il2cpp file not supported.");

            case 0x6D736100:
                var web = new WebAssembly(il2CppMemory);
                il2Cpp = web.CreateMemory();
                break;

            case 0x304F534E:
                var nso = new NSO(il2CppMemory);
                il2Cpp = nso.UnCompress();
                break;

            case 0x905A4D:     //PE
                il2Cpp = new PE(il2CppMemory);
                break;

            case 0x464c457f:             //ELF
                if (il2cppBytes[4] == 2) //ELF64
                {
                    il2Cpp = new Elf64(il2CppMemory);
                }
                else
                {
                    il2Cpp = new Elf(il2CppMemory);
                }
                break;

            case 0xCAFEBABE:     //FAT Mach-O
            case 0xBEBAFECA:
                var machofat = new MachoFat(new MemoryStream(il2cppBytes));
                Console.Write("Select Platform: ");
                for (var i = 0; i < machofat.fats.Length; i++)
                {
                    var fat = machofat.fats[i];
                    Console.Write(fat.magic == 0xFEEDFACF ? $"{i + 1}.64bit " : $"{i + 1}.32bit ");
                }
                Console.WriteLine();
                var key   = Console.ReadKey(true);
                var index = int.Parse(key.KeyChar.ToString()) - 1;
                var magic = machofat.fats[index % 2].magic;
                il2cppBytes  = machofat.GetMacho(index % 2);
                il2CppMemory = new MemoryStream(il2cppBytes);
                if (magic == 0xFEEDFACF)
                {
                    goto case 0xFEEDFACF;
                }
                else
                {
                    goto case 0xFEEDFACE;
                }

            case 0xFEEDFACF:     // 64bit Mach-O
                il2Cpp = new Macho64(il2CppMemory);
                break;

            case 0xFEEDFACE:     // 32bit Mach-O
                il2Cpp = new Macho(il2CppMemory);
                break;
            }
            var version = config.ForceIl2CppVersion ? config.ForceVersion : metadata.Version;

            il2Cpp.SetProperties(version, metadata.maxMetadataUsages);
            Console.WriteLine($"Il2Cpp Version: {il2Cpp.Version}");
            if (il2Cpp.Version >= 27 && il2Cpp is ElfBase elf && elf.IsDumped)
            {
                Console.WriteLine("Input global-metadata.dat dump address:");
                metadata.Address = Convert.ToUInt64(Console.ReadLine(), 16);
            }


            Console.WriteLine("Searching...");
            try
            {
                var flag = il2Cpp.PlusSearch(metadata.methodDefs.Count(x => x.methodIndex >= 0), metadata.typeDefs.Length, metadata.imageDefs.Length);
                if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
                {
                    if (!flag && il2Cpp is PE)
                    {
                        Console.WriteLine("Use custom PE loader");
                        il2Cpp = PELoader.Load(il2cppPath);
                        il2Cpp.SetProperties(version, metadata.maxMetadataUsages);
                        flag = il2Cpp.PlusSearch(metadata.methodDefs.Count(x => x.methodIndex >= 0), metadata.typeDefs.Length, metadata.imageDefs.Length);
                    }
                }
                if (!flag)
                {
                    flag = il2Cpp.Search();
                }
                if (!flag)
                {
                    flag = il2Cpp.SymbolSearch();
                }
                if (!flag)
                {
                    Console.WriteLine("ERROR: Can't use auto mode to process file, try manual mode.");
                    Console.Write("Input CodeRegistration: ");
                    var codeRegistration = Convert.ToUInt64(Console.ReadLine(), 16);
                    Console.Write("Input MetadataRegistration: ");
                    var metadataRegistration = Convert.ToUInt64(Console.ReadLine(), 16);
                    il2Cpp.Init(codeRegistration, metadataRegistration);
                    return(true);
                }
            }
            catch (Exception e)
            {
                Console.WriteLine(e);
                Console.WriteLine("ERROR: An error occurred while processing.");
                return(false);
            }
            return(true);
        }
Example #3
0
        private bool Init(string il2cppPath, string metadataPath, out Metadata metadata, out Il2Cpp il2Cpp)
        {
            string Mach_O = "2";

            Invoke(new Action(delegate()
            {
                if (!use64bitMach_O)
                {
                    Mach_O = "1";
                }
            }));

            this.Log("Read config...");
            if (File.Exists(realPath + "config.json"))
            {
                config = JsonConvert.DeserializeObject <Config>(File.ReadAllText(Application.StartupPath + Path.DirectorySeparatorChar + @"config.json"));
            }
            else
            {
                config = new Config();
                Log("config.json file does not exist. Using defaults", Color.Yellow);
            }

            this.Log("Initializing metadata...");
            var metadataBytes = File.ReadAllBytes(metadataPath);

            metadata = new Metadata(new MemoryStream(metadataBytes));
            this.Log($"Metadata Version: {metadata.Version}");
            this.Log("Initializing il2cpp file...");
            var il2cppBytes  = File.ReadAllBytes(il2cppPath);
            var il2cppMagic  = BitConverter.ToUInt32(il2cppBytes, 0);
            var il2CppMemory = new MemoryStream(il2cppBytes);

            switch (il2cppMagic)
            {
            default:
                throw new NotSupportedException("ERROR: il2cpp file not supported.");

            case 0x6D736100:
                var web = new WebAssembly(il2CppMemory);
                il2Cpp = web.CreateMemory();
                break;

            case 0x304F534E:
                var nso = new NSO(il2CppMemory);
                il2Cpp = nso.UnCompress();
                break;

            case 0x905A4D:     //PE
                il2Cpp = new PE(il2CppMemory);
                break;

            case 0x464c457f:             //ELF
                if (il2cppBytes[4] == 2) //ELF64
                {
                    il2Cpp = new Elf64(il2CppMemory);
                }
                else
                {
                    il2Cpp = new Elf(il2CppMemory);
                }
                break;

            case 0xCAFEBABE:     //FAT Mach-O
            case 0xBEBAFECA:
                var machofat = new MachoFat(new MemoryStream(il2cppBytes));
                for (var i = 0; i < machofat.fats.Length; i++)
                {
                    var fat = machofat.fats[i];
                    //Console.Write(fat.magic == 0xFEEDFACF ? $"{i + 1}.64bit " : $"{i + 1}.32bit ");
                }
                var index = int.Parse(Mach_O) - 1;
                var magic = machofat.fats[index % 2].magic;
                il2cppBytes  = machofat.GetMacho(index % 2);
                il2CppMemory = new MemoryStream(il2cppBytes);
                if (magic == 0xFEEDFACF)
                {
                    goto case 0xFEEDFACF;
                }
                else
                {
                    goto case 0xFEEDFACE;
                }

            case 0xFEEDFACF:     // 64bit Mach-O
                il2Cpp = new Macho64(il2CppMemory);
                break;

            case 0xFEEDFACE:     // 32bit Mach-O
                il2Cpp = new Macho(il2CppMemory);
                break;
            }

            var version = config.ForceIl2CppVersion ? config.ForceVersion : metadata.Version;

            il2Cpp.SetProperties(version, metadata.maxMetadataUsages);
            this.Log($"Il2Cpp Version: {il2Cpp.Version}");
            if (il2Cpp.Version >= 27 && il2Cpp is ElfBase elf && elf.IsDumped)
            {
                FormDump form = new FormDump();
                form.dumpNoteLbl.Text = "Input global-metadata.dat dump address:";
                form.Message          = 0;
                if (form.ShowDialog() == DialogResult.OK)
                {
                    metadata.Address = Convert.ToUInt64(form.ReturnedText, 16);
                    this.Log("Inputted address: " + metadata.Address.ToString("X"));
                }
            }

            this.Log("Searching...");
            try
            {
                var flag = il2Cpp.PlusSearch(metadata.methodDefs.Count(x => x.methodIndex >= 0), metadata.typeDefs.Length, metadata.imageDefs.Length);
                if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
                {
                    if (!flag && il2Cpp is PE)
                    {
                        this.Log("Use custom PE loader");
                        il2Cpp = PELoader.Load(il2cppPath);
                        il2Cpp.SetProperties(version, metadata.maxMetadataUsages);
                        flag = il2Cpp.PlusSearch(metadata.methodDefs.Count(x => x.methodIndex >= 0), metadata.typeDefs.Length, metadata.imageDefs.Length);
                    }
                }
                if (!flag)
                {
                    flag = il2Cpp.Search();
                }
                if (!flag)
                {
                    flag = il2Cpp.SymbolSearch();
                }
                if (!flag)
                {
                    Log("ERROR: Can't use auto mode to process file, input offset pointers to try manual mode.", Color.Yellow);
                    var codeRegistration     = Convert.ToUInt64(CodeRegistrationTxtBox.Text, 16);
                    var metadataRegistration = Convert.ToUInt64(metadataRegistrationTxtBox.Text, 16);
                    il2Cpp.Init(codeRegistration, metadataRegistration);
                    return(true);
                }
            }
            catch (Exception ex)
            {
                Log("An error occurred while processing.", Color.Orange);
                Log(ex.ToString(), Color.Orange);
                return(false);
            }
            return(true);
        }