initial commit

2026-08-27 11:21:58 -06:00
commit c21fb61050
336 changed files with 74161 additions and 0 deletions
@@ -0,0 +1,75 @@
+using System;
+using System.Linq;
+using dnlib.DotNet;
+using dnlib.DotNet.Emit;
+using Obfuscator.Obfuscator.IntProtect;
+
+namespace Obfuscator.Obfuscator.CtrlFlow;
+
+internal class CflowV2
+{
+	private static readonly Type[] types = new Type[7]
+	{
+		typeof(uint),
+		typeof(int),
+		typeof(long),
+		typeof(ulong),
+		typeof(ushort),
+		typeof(short),
+		typeof(double)
+	};
+
+	private static readonly int[] sizes = new int[7] { 4, 4, 8, 8, 2, 2, 8 };
+
+	public static void Execute(ModuleDefMD md)
+	{
+		foreach (TypeDef type in md.Types)
+		{
+			if (type == md.GlobalType)
+			{
+				continue;
+			}
+			foreach (MethodDef method in type.Methods)
+			{
+				if (!method.Name.StartsWith("get_") && !method.Name.StartsWith("set_") && method.HasBody && !method.IsConstructor)
+				{
+					method.Body.SimplifyBranches();
+					ExecuteMethod(method);
+				}
+			}
+		}
+	}
+
+	public static void ExecuteMethod(MethodDef method)
+	{
+		Console.WriteLine(string.Concat(method.Name, method.Body.Instructions.Count().ToString()));
+		for (int i = 0; i < method.Body.Instructions.Count(); i++)
+		{
+			if (method.Body.Instructions[i].IsLdcI4())
+			{
+				int num = IntEncoding.Next();
+				int num2 = IntEncoding.Next();
+				int value = num ^ num2;
+				int num3 = IntEncoding.Next(types.Length);
+				Type type = types[num3];
+				Instruction instruction = OpCodes.Nop.ToInstruction();
+				Local local = new Local(method.Module.ImportAsTypeSig(type));
+				Instruction item = OpCodes.Stloc.ToInstruction(local);
+				method.Body.Variables.Add(local);
+				method.Body.Instructions.Insert(i + 1, item);
+				method.Body.Instructions.Insert(i + 2, Instruction.Create(OpCodes.Ldc_I4, method.Body.Instructions[i].GetLdcI4Value() - sizes[num3]));
+				method.Body.Instructions.Insert(i + 3, Instruction.Create(OpCodes.Ldc_I4, value));
+				method.Body.Instructions.Insert(i + 4, Instruction.Create(OpCodes.Ldc_I4, num2));
+				method.Body.Instructions.Insert(i + 5, Instruction.Create(OpCodes.Xor));
+				method.Body.Instructions.Insert(i + 6, Instruction.Create(OpCodes.Ldc_I4, num));
+				method.Body.Instructions.Insert(i + 7, Instruction.Create(OpCodes.Bne_Un, instruction));
+				method.Body.Instructions.Insert(i + 8, Instruction.Create(OpCodes.Ldc_I4, 2));
+				method.Body.Instructions.Insert(i + 9, item);
+				method.Body.Instructions.Insert(i + 10, Instruction.Create(OpCodes.Sizeof, method.Module.Import(type)));
+				method.Body.Instructions.Insert(i + 11, Instruction.Create(OpCodes.Add));
+				method.Body.Instructions.Insert(i + 12, instruction);
+				i += method.Body.Instructions.Count - i;
+			}
+		}
+	}
+}