private int DecryptStrings(ModuleDef moduleDef, IMDTokenProvider decryptionMethod, IFullName declaringType)
{
var assembly = Assembly.LoadFile(moduleDef.Location);
var decryptCount = 0;
foreach (var type in moduleDef.Types)
{
foreach (var method in type.Methods)
{
if (!method.HasBody || !method.Body.HasInstructions)
continue;
var instructions = method.Body.Instructions;
for (var i = 0; i < instructions.Count; i++)
{
if (instructions[i].OpCode != OpCodes.Ldstr)
continue;
if (instructions[i + 1].OpCode != OpCodes.Ldstr)
continue;
if (!instructions[i + 2].Operand.ToString().
Equals(decryptionMethod.ToString()))
continue;
var param1 = instructions[i].Operand.ToString();
var param2 = instructions[i + 1].Operand.ToString();
var methodType = assembly.GetType(declaringType.Name);
if (methodType == null)
continue;
var metaData = decryptionMethod.MDToken.ToInt32();
var methodBase = methodType.Module.ResolveMethod(metaData);
if (methodBase == null)
continue;
var parameters = methodBase.GetParameters();
if (parameters.Length == 0)
continue;
var result
= methodBase.Invoke(null, new object[] { param1, param2 });
var body = method.Body;
body.Instructions[i].OpCode = OpCodes.Ldstr;
body.Instructions[i].Operand = result.ToString();
body.Instructions.RemoveAt(i + 1);
body.Instructions.RemoveAt(i + 1);
decryptCount++;
}
}
}
return decryptCount;
}
private int DecryptStrings(ModuleDef moduleDef, IMDTokenProvider decryptionMethod, IFullName declaringType)
{
var assembly = Assembly.LoadFile(moduleDef.Location);
var decryptCount = 0;
foreach (var type in moduleDef.Types)
{
foreach (var method in type.Methods)
{
if (!method.HasBody || !method.Body.HasInstructions)
{
continue;
}
var instructions = method.Body.Instructions;
for (var i = 0; i < instructions.Count; i++)
{
if (instructions[i].OpCode != OpCodes.Ldstr)
{
continue;
}
if (instructions[i + 1].OpCode != OpCodes.Ldstr)
{
continue;
}
if (!instructions[i + 2].Operand.ToString().
Equals(decryptionMethod.ToString()))
{
continue;
}
var param1 = instructions[i].Operand.ToString();
var param2 = instructions[i + 1].Operand.ToString();
var methodType = assembly.GetType(declaringType.Name);
if (methodType == null)
{
continue;
}
var metaData = decryptionMethod.MDToken.ToInt32();
var methodBase = methodType.Module.ResolveMethod(metaData);
if (methodBase == null)
{
continue;
}
var parameters = methodBase.GetParameters();
if (parameters.Length == 0)
{
continue;
}
var result
= methodBase.Invoke(null, new object[] { param1, param2 });
var body = method.Body;
body.Instructions[i].OpCode = OpCodes.Ldstr;
body.Instructions[i].Operand = result.ToString();
body.Instructions.RemoveAt(i + 1);
body.Instructions.RemoveAt(i + 1);
decryptCount++;
}
}
}
return(decryptCount);
}
