36 lines
1.2 KiB
C#
36 lines
1.2 KiB
C#
using System.IO;
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using System.Linq;
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using System.Security.Cryptography;
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using dnlib.DotNet;
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using dnlib.DotNet.Emit;
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using Obfuscator.Helper;
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using Obfuscator.Obfuscator.Anti.Runtime;
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namespace Obfuscator.Obfuscator.Anti;
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public static class AntiTamper
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{
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public static void Sha256(string filePath)
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{
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byte[] array = SHA256.Create().ComputeHash(File.ReadAllBytes(filePath));
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using FileStream fileStream = new FileStream(filePath, FileMode.Append);
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fileStream.Write(array, 0, array.Length);
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}
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public static void Execute(ModuleDef module)
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{
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ModuleDefMD moduleDefMD = ModuleDefMD.Load(typeof(EofAntiTamper).Module);
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MethodDef methodDef = module.GlobalType.FindOrCreateStaticConstructor();
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MethodDef method2 = (MethodDef)InjectHelper.Inject(moduleDefMD.ResolveTypeDef(MDToken.ToRID(typeof(EofAntiTamper).MetadataToken)), module.GlobalType, module).Single((IDnlibDef method) => method.Name == "Initializer");
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methodDef.Body.Instructions.Insert(0, Instruction.Create(OpCodes.Call, method2));
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foreach (MethodDef method3 in module.GlobalType.Methods)
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{
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if (!(method3.Name != ".ctor"))
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{
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module.GlobalType.Remove(method3);
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break;
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}
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}
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}
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}
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