//Inspired by EOFAntiTamper
private static void ModifyModule(ModuleDef module, bool callOnly)
{
var loaderType = callOnly ? typeof(CallLoader) : typeof(Loader);
//Declare module to inject
var injectModule = ModuleDefMD.Load(loaderType.Module);
var global = module.GlobalType.FindOrCreateStaticConstructor();
//Declare CallLoader as a TypeDef using it's Metadata token
var injectType = injectModule.ResolveTypeDef(MDToken.ToRID(loaderType.MetadataToken));
//Use ConfuserEx InjectHelper class to inject Loader class into our target, under <Module>
var members = InjectHelper.Inject(injectType, module.GlobalType, module);
if (callOnly)
{
Console.WriteLine("Injecting Origami loader into {0}", module.GlobalType.Name);
//Find the Initialize() Method in Loader
var init = (MethodDef)members.Single(method => method.Name == "Initialize");
//Add Instruction to call the init method
global.Body.Instructions.Insert(0, Instruction.Create(OpCodes.Call, init));
}
else
{
Console.WriteLine("Creating Origami entry point for stub {0}", module.GlobalType.Name);
//Find the Initialize() Method in Loader
var init = (MethodDef)members.Single(method => method.Name == "Initialize");
//Add Instruction to call the init method
global.Body.Instructions.Insert(0, Instruction.Create(OpCodes.Call, init));
var entryPoint = members.OfType <MethodDef>().Single(method => method.Name == "Main");
//Set EntryPoint to Main method defined in the Loader class
module.EntryPoint = entryPoint;
//Add STAThreadAttribute
var attrType = module.CorLibTypes.GetTypeRef("System", "STAThreadAttribute");
var ctorSig = MethodSig.CreateInstance(module.CorLibTypes.Void);
entryPoint.CustomAttributes.Add(new CustomAttribute(
new MemberRefUser(module, ".ctor", ctorSig, attrType)));
}
//Remove.ctor method because otherwise it will
//lead to Global constructor error( e.g[MD]: Error: Global item( field, method ) must be Static. [token: 0x06000002] / [MD]: Error: Global constructor. [token: 0x06000002] )
foreach (var md in module.GlobalType.Methods)
{
if (md.Name == ".ctor")
{
module.GlobalType.Remove(md);
break;
}
}
}
//Inspired by EOFAntiTamper
private static void ModifyModule(ModuleDef module, bool callOnly)
{
var loaderType = typeof(Loader);
//Declare module to inject
var injectModule = ModuleDefMD.Load(loaderType.Module);
//Get global constructor or create one if it does not already exist
var global = module.GlobalType.FindOrCreateStaticConstructor();
//Declare CallLoader as a TypeDef using it's Metadata token
var injectType = injectModule.ResolveTypeDef(MDToken.ToRID(loaderType.MetadataToken));
//Use ConfuserEx InjectHelper class to inject Loader class into our target, under <Module>
var members = InjectHelper.Inject(injectType, module.GlobalType, module);
Console.WriteLine("Creating EntryPoint for stub {0}", module.GlobalType.Name);
//Resolve method for the EntryPoint
var entryPoint = members.OfType <MethodDef>().Single(method => method.Name == "Main");
//Set EntryPoint to Main method defined in the Loader class
module.EntryPoint = entryPoint;
//Add STAThreadAttribute
var attrType = module.CorLibTypes.GetTypeRef("System", "STAThreadAttribute");
var ctorSig = MethodSig.CreateInstance(module.CorLibTypes.Void);
entryPoint.CustomAttributes.Add(new CustomAttribute(
new MemberRefUser(module, ".ctor", ctorSig, attrType)));
//Remove.ctor method because otherwise it will
//lead to Global constructor error( e.g[MD]: Error: Global item( field, method ) must be Static. [token: 0x06000002] / [MD]: Error: Global constructor. [token: 0x06000002] )
foreach (var md in module.GlobalType.Methods)
{
if (md.Name != ".ctor")
{
continue;
}
module.GlobalType.Remove(md);
break;
}
}
