private static void DecryptMethods(MethodDef methodDef, MethodBase invokeMethod, object fieldInstance)
{
var instructions = methodDef.Body.Instructions;
if (instructions.Count < 9)
{
return;
}
if (instructions[0].OpCode != OpCodes.Ldsfld)
{
return;
}
if (((FieldDef)instructions[0].Operand).FullName != "i <Module>::Invoke")
{
return;
}
ToRemove.Add(instructions[3].Operand);
int index = instructions[1].GetLdcI4Value();
var dynamicMethodBodyReader = new DynamicMethodBodyReader(methodDef.Module, invokeMethod.Invoke(fieldInstance, new object[] { index }));
dynamicMethodBodyReader.Read();
methodDef.FreeMethodBody();
methodDef.Body = dynamicMethodBodyReader.GetMethod().Body;
}
private static void InvokeDelegates(IList <TypeDef> typeDefs, MethodInfo invokeMethod, object invokeField)
{
foreach (TypeDef typeDef in typeDefs)
{
foreach (MethodDef methodDef in typeDef.Methods)
{
if (!(methodDef.Module.Name != assembly.ManifestModule.ScopeName) && methodDef.HasBody && methodDef.Body.Instructions.Count > 2 && methodDef.Body.Instructions[0].OpCode == OpCodes.Ldsfld && methodDef.Body.Instructions[0].Operand.ToString().Contains("Invoke") && methodDef.Body.Instructions[1].IsLdcI4())
{
currentMethod = methodDef;
var _MDToken = ((IType)methodDef.Body.Instructions[3].Operand).MDToken.ToInt32();
junkType.Add(typeDef.NestedTypes.FirstOrDefault(net => net.MDToken.ToInt32() == _MDToken));
object method = invokeMethod.Invoke(invokeField, new object[] { (int)methodDef.Body.Instructions[1].Operand });
try
{
var dynamicMethodBodyReader = new DynamicMethodBodyReader(assemblyWriter.moduleDef, method);
dynamicMethodBodyReader.Read();
var method2 = dynamicMethodBodyReader.GetMethod();
assemblyWriter.WriteMethod(method2);
}
catch (Exception ex)
{
Console.WriteLine("Error in Read(): " + ex.Message + "\nMethod : " + method.ToString());
}
}
}
}
}
public override void Execute(Context Context) // Change "ConvertBack::Runner" for Modded Versions
{
if (Context.SysModule != null && Context.DnModule != null)
{
try { Initialize.Initalize("Eddy^CZ_", Context.SysModule); } catch { Context.Log.Custom("Skipping", "Not CawkVM"); return; }
foreach (var TypeDef in Context.DnModule.Types.Where(x => x.HasMethods && !x.IsGlobalModuleType))
{
foreach (var MethodDef in TypeDef.Methods.Where(x => x.HasBody))
{
var IL = MethodDef.Body.Instructions;
for (int x = 0; x < IL.Count; x++)
{
if (IL[x].OpCode == OpCodes.Call &&
IL[x].Operand.ToString().Contains("ConvertBack::Runner") &&
IL[x - 4].IsLdcI4() &&
IL[x - 3].IsLdcI4() &&
IL[x - 2].IsLdcI4())
{
try
{
var Position = IL[x - 4].GetLdcI4Value();
var Size = IL[x - 3].GetLdcI4Value();
var ID = IL[x - 2].GetLdcI4Value();
object[] Params = new object[MethodDef.Parameters.Count]; int Index = 0;
foreach (var Param in MethodDef.Parameters)
{
Params[Index++] = Param.Type.Next;
}
var methodBase = Context.SysModule.ResolveMethod(MethodDef.MDToken.ToInt32());
var dynamicMethod = ConvertBack.Runner(Position, Size, ID, Params, methodBase);
var dynamicReader = Activator.CreateInstance(
typeof(System.Reflection.Emit.DynamicMethod).Module.GetTypes()
.FirstOrDefault(t => t.Name == "DynamicResolver"),
(System.Reflection.BindingFlags)(-1), null, new object[] { dynamicMethod.GetILGenerator() }, null);
var dynamicMethodBodyReader = new DynamicMethodBodyReader(MethodDef.Module, dynamicReader);
dynamicMethodBodyReader.Read();
MethodDef.Body = dynamicMethodBodyReader.GetMethod().Body;
Context.Log.Debug($"Done Devirtualize Method : {MethodDef.Name}");
}
catch (Exception ex)
{
Context.Log.Error(ex.Message);
}
}
}
}
}
}
}
internal void ReadMethod(object method)
{
try
{
var methodBodyReader = new DynamicMethodBodyReader(_assemblyWriter.ModuleDef, method);
methodBodyReader.Read();
var methodDef = methodBodyReader.GetMethod();
_assemblyWriter.WriteMethod(methodDef);
}
catch (Exception e)
{
Console.WriteLine("Error in ReadMethod(): " + e.Message);
throw;
}
}
private static void InvokeDelegates(IList <TypeDef> typeDefs, MethodInfo invokeMethod, object invokeField)
{
var methodDefs = typeDefs.SelectMany(x => x.Methods).Where(x =>
x.Module.Name == Assembly.ManifestModule.ScopeName && x.HasBody &&
x.Body.Instructions.Count > 2 &&
x.Body.Instructions[0].OpCode == OpCodes.Ldsfld &&
x.Body.Instructions[0].Operand.ToString().Contains("Invoke") &&
x.Body.Instructions[1].IsLdcI4());
foreach (var methodDef in methodDefs)
{
_totalPackedMethods++;
CurrentMethod = methodDef;
CurrentMethodBase = Assembly.ManifestModule.ResolveMethod(methodDef.MDToken.ToInt32());
var mdToken = ((IType)methodDef.Body.Instructions[3].Operand).MDToken.ToInt32();
JunkType.Add(methodDef.DeclaringType.NestedTypes.FirstOrDefault(net => net.MDToken.ToInt32() == mdToken));
var index = methodDef.Body.Instructions[1].GetLdcI4Value();
if (index == IgnoreIndex)
{
continue;
}
var method = invokeMethod.Invoke(invokeField, new object[] { index });
try
{
var dynamicMethodBodyReader = new DynamicMethodBodyReader(AssemblyWriter.moduleDef, method);
dynamicMethodBodyReader.Read();
var unpackedMethod = dynamicMethodBodyReader.GetMethod();
AssemblyWriter.WriteMethod(methodDef, unpackedMethod);
_totalUnpackedMethods++;
}
catch (Exception ex)
{
Console.WriteLine("Error in Read(): " + ex.Message + "\nMethod : " + method);
}
finally
{
CurrentMethod = null;
}
}
}
public static MethodDef ResolveMethodBodyShit(int num, ModuleDefMD Module)
{
GCHandle obj = Harmony.Handlaaaa;
try{
var asd = obj.Target as object[];
var f = asd[num].GetType();
var s = f.GetRuntimeFields();
var gh = s.ToArray()[1].GetValue(asd[num]) as Delegate[];
var del = gh[0];
DynamicMethodBodyReader reader = new DynamicMethodBodyReader(Module, del);
reader.Read();
return(reader.GetMethod());
}
catch {
}
return(null);
}
internal static void FixProxyCall()
{
var globalTypes = _moduleDefMd?.Types.Where(t => t.Namespace == string.Empty).ToArray();
var decryptor = (globalTypes ?? throw new InvalidOperationException()).Single(t => t.Name.StartsWith("{", StringComparison.Ordinal) &&
t.Name.EndsWith("}", StringComparison.Ordinal)).Methods.Single(m => !m.IsInstanceConstructor && m.Parameters.Count == 1);
foreach (var typeDef in globalTypes)
{
var cctor = typeDef.FindStaticConstructor();
if (cctor is null || !cctor.Body.Instructions.Any(i => i.OpCode == OpCodes.Call && i.Operand == decryptor))
{
continue;
}
switch (_module)
{
case not null: {
foreach (var fieldInfo in _module.ResolveType(typeDef.MDToken.ToInt32())
.GetFields(BindingFlags.NonPublic | BindingFlags.Static) !)
{
var proxyFieldToken = fieldInfo.MetadataToken;
var proxyFieldDef = _moduleDefMd?.ResolveField((uint)proxyFieldToken - 0x4000000);
var realMethod = ((Delegate)fieldInfo.GetValue(null) !).Method;
if (Utils.IsDynamicMethod(realMethod))
{
var dynamicMethodBodyReader = new DynamicMethodBodyReader(_moduleDefMd, realMethod);
dynamicMethodBodyReader.Read();
var instructionList = dynamicMethodBodyReader.GetMethod().Body.Instructions;
ReplaceAllOperand(proxyFieldDef, instructionList[instructionList.Count - 2].OpCode,
(MemberRef)instructionList[instructionList.Count - 2].Operand);
}
else
{
ReplaceAllOperand(proxyFieldDef, realMethod.IsVirtual ? OpCodes.Callvirt : OpCodes.Call,
(MemberRef)_moduleDefMd.Import(realMethod));
}
}
break;
}
}
}
}
private static void DecryptMethods(MethodDef methodDef, MethodBase invokeMethod, object fieldInstance)
{
if (!methodDef.HasBody)
{
return;
}
var instructions = methodDef.Body.Instructions;
if (instructions.Count > 2 &&
instructions[0].OpCode.Code == Code.Ldsfld &&
instructions[0].Operand.ToString().Contains("Invoke") &&
instructions[1].IsLdcI4())
{
try
{
var mdToken = ((IType)methodDef.Body.Instructions[3].Operand).MDToken.ToInt32();
JunkTypes.Add(methodDef.DeclaringType.NestedTypes.FirstOrDefault(net => net.MDToken.ToInt32() == mdToken));
Hooks.MethodBase = Assembly.ManifestModule.ResolveMethod(methodDef.MDToken.ToInt32());
var index = instructions[1].GetLdcI4Value();
var method = invokeMethod.Invoke(fieldInstance, new object[] { index });
var reader = new DynamicMethodBodyReader(Module, method);
reader.Read();
methodDef.FreeMethodBody();
methodDef.Body = reader.GetMethod().Body;
}
catch (Exception ex)
{
Console.WriteLine($"Error: {ex.Message}{Environment.NewLine}Method: {methodDef.FullName}{Environment.NewLine}MDToken: 0x{methodDef.MDToken}{Environment.NewLine}");
}
}
}
public static void Main(string[] args)
{
Console.ForegroundColor = ConsoleColor.Cyan;
Console.Title = "Archangel UnCloacker";
if (args.Length == 0)
{
Console.WriteLine("This is a Drag And Drop Program! Exiting.");
Console.ReadLine();
return;
}
var Module = ModuleDefMD.Load(args[0]);
var asm = Assembly.LoadFile(args[0]);
var Asm = Module.GetAssemblyRefs().First(q => q.FullName.Contains("Archangel.CloakingDevice"));
if (Asm == null)
{
return;
}
var asm2 =
Assembly.LoadFile(Path.Combine(Path.GetDirectoryName(args[0]), "Archangel.CloakingDevice.dll"));
Harmony.PatchGetCallingAssembly.MethodToReplace = asm;
Harmony.Patch();
var invokemethod = asm2.GetType("Archangel.CloakingDevice.KickStart").GetMethod("Boot");
invokemethod.Invoke(null, null);
TypeDef specific = null;
var MethodFields = new Dictionary <FieldDef, MethodDef>();
foreach (var type in Module.Types)
{
if (type.HasFields)
{
foreach (var field in type.Fields)
{
try{
var val = asm.ManifestModule.ResolveField(field.MDToken.ToInt32());
var value = val.GetValue(null);
if (!(value is MulticastDelegate))
{
continue;
}
var t = (MulticastDelegate)value;
var reader = new DynamicMethodBodyReader(Module, t.Method);
reader.Read();
var def = reader.GetMethod();
MethodFields.Add(field, def);
specific = type;
}
catch {
}
}
}
}
Console.WriteLine($"Found {MethodFields.Count} obfuscated fields and deobfuscated them.");
int replacedmethods = 0;
foreach (var type in Module.GetTypes())
{
foreach (var method in type.Methods)
{
if (method.HasBody && method.Body.HasInstructions)
{
foreach (var instr in method.Body.Instructions)
{
if (instr.OpCode == OpCodes.Ldsfld)
{
try{
var op = (FieldDef)instr.Operand;
var d = MethodFields[op];
if (d == null)
{
continue;
}
method.FreeMethodBody();
method.Body = d.Body;
replacedmethods++;
goto GetOut;
}
catch {
}
}
}
}
GetOut :;
}
}
Console.WriteLine($"Successfully Replaced {replacedmethods} out of {MethodFields.Count} methods.");
if (replacedmethods != MethodFields.Count)
{
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("Not all methods were decrypted, rereferencing dll.");
Console.ForegroundColor = ConsoleColor.Cyan;
Importer importer = new Importer(Module);
IMethod Method;
Method = importer.Import(invokemethod);
var mainmdtok = asm.EntryPoint.MetadataToken;
foreach (var type in Module.Types)
{
foreach (var method in type.Methods)
{
if (method.MDToken.ToInt32() == mainmdtok)
{
method.Body.Instructions.Insert(0, new Instruction(OpCodes.Call, Module.Import(Method)));
}
}
}
}
else
{
Module.Types.Remove(specific);
//Maybe shouldn't remove, you decide.
}
Save(Module, args[0]);
Console.WriteLine("Successfully Saved!");
Console.ReadLine();
}
public static void CleanDelegates(ModuleDefMD module)
{
foreach (TypeDef typeDef in module.GetTypes())
{
foreach (MethodDef methodDef in typeDef.Methods)
{
bool flag = !methodDef.HasBody;
bool flag2 = !flag;
if (flag2)
{
for (int i = 0; i < methodDef.Body.Instructions.Count; i++)
{
bool flag3 = methodDef.Body.Instructions[i].OpCode == OpCodes.Call && methodDef.Body.Instructions[i].Operand is MethodDef;
bool flag4 = flag3;
if (flag4)
{
MethodDef methodDef2 = methodDef.Body.Instructions[i].Operand as MethodDef;
bool isDelegate = methodDef2.DeclaringType.IsDelegate;
bool flag5 = isDelegate;
if (flag5)
{
bool flag6 = !methodDef2.FullName.Contains("::Invoke");
bool flag7 = flag6;
if (flag7)
{
MethodDef methodDef3 = methodDef2.DeclaringType.FindConstructors().ToArray <MethodDef>()[1];
bool flag8 = methodDef3.Body.Instructions.Count == 5;
bool flag9 = flag8;
if (flag9)
{
MethodDef methodDef4 = methodDef3.Body.Instructions[3].Operand as MethodDef;
int ldcI4Value = methodDef3.Body.Instructions[0].GetLdcI4Value();
int ldcI4Value2 = methodDef3.Body.Instructions[1].GetLdcI4Value();
int ldcI4Value3 = methodDef3.Body.Instructions[2].GetLdcI4Value();
Program.asm.ManifestModule.ResolveMethod(methodDef4.MDToken.ToInt32()).Invoke(null, new object[]
{
ldcI4Value,
ldcI4Value2,
ldcI4Value3
});
FieldDef fieldDef = methodDef2.DeclaringType.Fields.First <FieldDef>();
Delegate @delegate = (Delegate)Program.asm.ManifestModule.ResolveField(fieldDef.MDToken.ToInt32()).GetValue(null);
bool flag10 = @delegate.Method.ReturnTypeCustomAttributes.ToString().Contains("DynamicMethod");
bool flag11 = flag10;
if (flag11)
{
DynamicMethodBodyReader dynamicMethodBodyReader = new DynamicMethodBodyReader(module, @delegate);
dynamicMethodBodyReader.Read();
int count = dynamicMethodBodyReader.Instructions.Count;
methodDef.Body.Instructions[i].OpCode = dynamicMethodBodyReader.Instructions[count - 2].OpCode;
methodDef.Body.Instructions[i].Operand = dynamicMethodBodyReader.Instructions[count - 2].Operand;
}
else
{
IMethod operand = module.Import(@delegate.Method);
methodDef.Body.Instructions[i].OpCode = OpCodes.Call;
methodDef.Body.Instructions[i].Operand = operand;
}
}
else
{
bool flag12 = methodDef3.Body.Instructions.Count == 6;
bool flag13 = flag12;
if (flag13)
{
MethodDef methodDef5 = methodDef3.Body.Instructions[4].Operand as MethodDef;
int ldcI4Value4 = methodDef3.Body.Instructions[0].GetLdcI4Value();
int ldcI4Value5 = methodDef3.Body.Instructions[1].GetLdcI4Value();
int ldcI4Value6 = methodDef3.Body.Instructions[2].GetLdcI4Value();
int ldcI4Value7 = methodDef3.Body.Instructions[3].GetLdcI4Value();
Program.asm.ManifestModule.ResolveMethod(methodDef5.MDToken.ToInt32()).Invoke(null, new object[]
{
ldcI4Value4,
ldcI4Value5,
ldcI4Value6,
ldcI4Value7
});
FieldDef fieldDef2 = methodDef2.DeclaringType.Fields.First <FieldDef>();
Delegate delegate2 = (Delegate)Program.asm.ManifestModule.ResolveField(fieldDef2.MDToken.ToInt32()).GetValue(null);
bool flag14 = delegate2.Method.ReturnTypeCustomAttributes.ToString().Contains("DynamicMethod");
bool flag15 = flag14;
if (flag15)
{
DynamicMethodBodyReader dynamicMethodBodyReader2 = new DynamicMethodBodyReader(module, delegate2);
dynamicMethodBodyReader2.Read();
int count2 = dynamicMethodBodyReader2.Instructions.Count;
methodDef.Body.Instructions[i].OpCode = dynamicMethodBodyReader2.Instructions[count2 - 2].OpCode;
methodDef.Body.Instructions[i].Operand = dynamicMethodBodyReader2.Instructions[count2 - 2].Operand;
}
else
{
IMethod operand2 = module.Import(delegate2.Method);
methodDef.Body.Instructions[i].OpCode = OpCodes.Call;
methodDef.Body.Instructions[i].Operand = operand2;
}
}
}
}
}
}
}
}
}
}
}
