protected override void Execute(ConfuserContext context, ProtectionParameters parameters)
{
foreach (ModuleDef moduleDef in parameters.Targets.OfType <ModuleDef>())
{
ModuleDefMD moduleDefMD = (ModuleDefMD)moduleDef;
if (moduleDefMD.FullName.Contains(".exe"))
{
int num = context.Modules.Count - 1;
for (int i = 0; i <= num; i++)
{
for (int j = 0; j <= 50; j++)
{
Random rnd = new Random();
new TypeDefUser(NameService.RandomNameStatic(), moduleDefMD.CorLibTypes.Object.TypeDefOrRef).Attributes = TypeAttributes.Public;
TypeDef item = new TypeDefUser(NameService.RandomNameStatic(), NameService.RandomNameStatic(), moduleDefMD.CorLibTypes.Object.TypeDefOrRef)
{
Attributes = TypeAttributes.Public
};
TypeDef item2 = new TypeDefUser(NameService.RandomNameStatic(), NameService.RandomNameStatic(), moduleDefMD.CorLibTypes.Object.TypeDefOrRef)
{
Attributes = TypeAttributes.Public
};
moduleDefMD.Types.Add(item);
moduleDefMD.Types.Add(item2);
}
Random rnd1 = new Random();
}
}
else
{
context.Logger.Log("WARN: Junk cannot be used on a dll");
}
}
}
private string NewName(string name)
{
string newName;
if (!nameMap.TryGetValue(name, out newName))
{
nameMap[name] = newName = NameService.RandomNameStatic();
}
return(newName);
} //you need to change this method, i use NameService so i don't have to do the renamer method again
public override void ProcessCall(RPContext ctx, int instrIndex)
{
Instruction instruction = ctx.Body.Instructions[instrIndex];
IMethod operand = (IMethod)instruction.Operand;
if (!operand.DeclaringType.ResolveTypeDefThrow().IsValueType&& (operand.ResolveThrow().IsPublic || operand.ResolveThrow().IsAssembly))
{
MethodDef def;
Tuple <Code, TypeDef, IMethod> key = Tuple.Create <Code, TypeDef, IMethod>(instruction.OpCode.Code, ctx.Method.DeclaringType, operand);
if (!this.proxies.TryGetValue(key, out def))
{
MethodSig methodSig = RPMode.CreateProxySignature(ctx, operand, instruction.OpCode.Code == Code.Newobj);
def = new MethodDefUser(NameService.RandomNameStatic(), methodSig)
{
Attributes = MethodAttributes.CompilerControlled | MethodAttributes.Static,
ImplAttributes = MethodImplAttributes.IL
};
ctx.Method.DeclaringType.Methods.Add(def);
if ((instruction.OpCode.Code == Code.Call) && operand.ResolveThrow().IsVirtual)
{
def.IsStatic = false;
methodSig.HasThis = true;
methodSig.Params.RemoveAt(0);
}
ctx.Marker.Mark(def, ctx.Protection);
/*ctx.Name.Analyze(def);
* ctx.Name.SetCanRename(def, false);*/
def.Body = new CilBody();
for (int i = 0; i < def.Parameters.Count; i++)
{
def.Body.Instructions.Add(Instruction.Create(OpCodes.Ldarg, def.Parameters[i]));
}
def.Body.Instructions.Add(Instruction.Create(instruction.OpCode, operand));
def.Body.Instructions.Add(Instruction.Create(OpCodes.Ret));
this.proxies[key] = def;
}
instruction.OpCode = OpCodes.Call;
if (ctx.Method.DeclaringType.HasGenericParameters)
{
GenericVar[] genArgs = new GenericVar[ctx.Method.DeclaringType.GenericParameters.Count];
for (int j = 0; j < genArgs.Length; j++)
{
genArgs[j] = new GenericVar(j);
}
instruction.Operand = new MemberRefUser(ctx.Module, def.Name, def.MethodSig, new GenericInstSig((ClassOrValueTypeSig)ctx.Method.DeclaringType.ToTypeSig(), genArgs).ToTypeDefOrRef());
}
else
{
instruction.Operand = def;
}
}
}
protected override void Execute(ConfuserContext context, ProtectionParameters parameters)
{
foreach (var method in parameters.Targets.OfType <MethodDef>())
{
if (!method.HasBody)
{
continue;
}
method.Body.SimplifyMacros(method.Parameters);
var instructions = method.Body.Instructions;
for (int i = 0; i < instructions.Count; i++)
{
if (instructions[i].Operand is Local local)
{
FieldDef def = null;
if (!convertedLocals.ContainsKey(local))
{
def = new FieldDefUser(NameService.RandomNameStatic(), new FieldSig(local.Type), FieldAttributes.Public | FieldAttributes.Static);
context.CurrentModule.GlobalType.Fields.Add(def);
convertedLocals.Add(local, def);
}
else
{
def = convertedLocals[local];
}
OpCode eq = null;
switch (instructions[i].OpCode.Code)
{
case Code.Ldloc:
eq = OpCodes.Ldsfld;
break;
case Code.Ldloca:
eq = OpCodes.Ldsflda;
break;
case Code.Stloc:
eq = OpCodes.Stsfld;
break;
}
instructions[i].OpCode = eq;
instructions[i].Operand = def;
}
}
convertedLocals.ToList().ForEach(x => method.Body.Variables.Remove(x.Key));
convertedLocals = new Dictionary <Local, FieldDef>();
}
}
private void HideInts(MethodDef methodDef)
{
if (canObfuscate(methodDef))
{
foreach (Instruction instruction in methodDef.Body.Instructions)
{
if (instruction.OpCode != OpCodes.Ldc_I4)
{
continue;
}
MethodDef meth = new MethodDefUser(NameService.RandomNameStatic(), MethodSig.CreateStatic(methodDef.DeclaringType.Module.CorLibTypes.Int32), MethodImplAttributes.IL | MethodImplAttributes.Managed, MethodAttributes.Public | MethodAttributes.Static | MethodAttributes.HideBySig)
{
Body = new CilBody()
};
meth.Body.Instructions.Add(new Instruction(OpCodes.Ldc_I4, instruction.GetLdcI4Value()));
meth.Body.Instructions.Add(new Instruction(OpCodes.Ret));
methodDef.DeclaringType.Methods.Add(meth);
instruction.OpCode = OpCodes.Call;
instruction.Operand = meth;
}
}
}
public void InlineInteger(MethodDef method, int i)
{
if (method.DeclaringType.IsGlobalModuleType)
{
return;
}
if (!method.HasBody)
{
return;
}
var instr = method.Body.Instructions;
if ((i - 1) > 0)
{
try
{
if (instr[i - 1].OpCode == OpCodes.Callvirt)
{
if (instr[i + 1].OpCode == OpCodes.Call)
{
return;
}
}
}
catch { }
}
//if (instr[i + 4].IsBr())
//{
// return;
//}
bool is_valid_inline = true;
switch (random.Next(0, 2))
{
//true
case 0:
is_valid_inline = true;
break;
//false
case 1:
is_valid_inline = false;
break;
}
Local new_local = new Local(method.Module.CorLibTypes.String);
method.Body.Variables.Add(new_local);
Local new_local2 = new Local(method.Module.CorLibTypes.Int32);
method.Body.Variables.Add(new_local2);
var value = instr[i].GetLdcI4Value();
var first_ldstr = NameService.RandomNameStatic();
instr.Insert(i, Instruction.Create(OpCodes.Ldloc_S, new_local2));
instr.Insert(i, Instruction.Create(OpCodes.Stloc_S, new_local2));
if (is_valid_inline)
{
instr.Insert(i, Instruction.Create(OpCodes.Ldc_I4, value));
instr.Insert(i, Instruction.Create(OpCodes.Ldc_I4, value + 1));
}
else
{
instr.Insert(i, Instruction.Create(OpCodes.Ldc_I4, value + 1));
instr.Insert(i, Instruction.Create(OpCodes.Ldc_I4, value));
}
instr.Insert(i,
Instruction.Create(OpCodes.Call,
method.Module.Import(typeof(System.String).GetMethod("op_Equality",
new Type[] { typeof(string), typeof(string) }))));
instr.Insert(i, Instruction.Create(OpCodes.Ldstr, first_ldstr));
instr.Insert(i, Instruction.Create(OpCodes.Ldloc_S, new_local));
instr.Insert(i, Instruction.Create(OpCodes.Stloc_S, new_local));
if (is_valid_inline)
{
instr.Insert(i, Instruction.Create(OpCodes.Ldstr, first_ldstr));
}
else
{
instr.Insert(i,
Instruction.Create(OpCodes.Ldstr,
NameService.RandomNameStatic()));
}
instr.Insert(i + 5, Instruction.Create(OpCodes.Brtrue_S, instr[i + 6]));
instr.Insert(i + 7, Instruction.Create(OpCodes.Br_S, instr[i + 8]));
instr.RemoveAt(i + 10);
//if (ProxyMethodConst.Contains(method))
//{
// var last = method.Body.Instructions.Count;
// if (!instr[last - 2].IsLdloc()) return;
// instr[last - 2].OpCode = OpCodes.Ldloc_S;
// instr[last - 2].Operand = new_local2;
//}
}
