public abstract string[] Pack(ConfuserParameter crParam, PackerParameter param);
public abstract string[] Pack(ConfuserParameter crParam, PackerParameter param);
public override string[] Pack(ConfuserParameter crParam, PackerParameter param)
{
ModuleDefinition originMain = param.Assemblies.Single(_ => _.IsMain).Assembly.MainModule;
int originIndex = Array.IndexOf(param.Modules, originMain);
var asm = AssemblyDefinition.CreateAssembly(originMain.Assembly.Name, modName, new ModuleParameters()
{
Architecture = originMain.Architecture, Kind = oKind, Runtime = originMain.Runtime
});
ModuleDefinition mod = asm.MainModule;
mod.Attributes |= (originMain.Attributes & ModuleAttributes.Required32Bit); // added -- christallire - to prevent BadImageFormatException, Stub assembly need to set ModuleAttribute.Required32Bit if oringinMain has one.
hash = new ByteBuffer(SHA1Managed.Create().ComputeHash(param.PEs[originIndex]));
int key0 = Random.Next(0, 0xff);
int key1 = Random.Next(0, 0xff);
int key2 = Random.Next(0, 0xff);
Database.AddEntry("Compressor", "Key0", key0);
Database.AddEntry("Compressor", "Key1", key1);
Database.AddEntry("Compressor", "Key2", key2);
ulong e = 0x47;
ulong p = (ulong)Random.Next(0x1000, 0x10000);
while (!isPrime(p) || (p - 1) % e == 0)
{
p = (ulong)Random.Next(0x1000, 0x10000);
}
ulong q = (ulong)Random.Next(0x1000, 0x10000);
while (!isPrime(q) || (q - 1) % e == 0)
{
q = (ulong)Random.Next(0x1000, 0x10000);
}
ulong n = p * q;
ulong n_ = (p - 1) * (q - 1);
ulong d = modInv(e, n_);
Database.AddEntry("Compressor", "p", p);
Database.AddEntry("Compressor", "q", q);
Database.AddEntry("Compressor", "n", n);
Database.AddEntry("Compressor", "d", d);
EmbeddedResource res = new EmbeddedResource(ObfuscationHelper.GetRandomName(), ManifestResourceAttributes.Private, Encrypt(param.PEs[originIndex], key0));
mod.Resources.Add(res);
for (int i = 1; i < param.Modules.Length; i++)
{
if (param.Modules[i].IsMain)
{
mod.Resources.Add(new EmbeddedResource(GetNewName(param.Modules[i].Assembly.Name.FullName, key2), ManifestResourceAttributes.Private, Encrypt(param.PEs[i], key0)));
}
else
{
mod.Resources.Add(new EmbeddedResource(GetNewName(param.Modules[i].Name, key2), ManifestResourceAttributes.Private, Encrypt(param.PEs[i], key1))); //TODO: Support for multi-module asssembly
}
}
AssemblyDefinition ldrC = AssemblyDefinition.ReadAssembly(typeof(Iid).Assembly.Location);
ldrC.MainModule.ReadSymbols();
TypeDefinition t = CecilHelper.Inject(mod, ldrC.MainModule.GetType("CompressShell"));
Mutator mutator = new Mutator();
mutator.IntKeys = new int[]
{
key0,
key1,
key2
};
mutator.LongKeys = new long[]
{
(long)modPow(entryPoint, d, n),
(long)n
};
mutator.StringKeys = new string[] { res.Name };
mutator.Mutate(Random, t, mod);
t.Namespace = "";
t.DeclaringType = null;
t.IsNestedPrivate = false;
t.IsNotPublic = true;
mod.Types.Add(t);
//MethodDefinition cctor = new MethodDefinition(".cctor", MethodAttributes.Private | MethodAttributes.HideBySig |
// MethodAttributes.SpecialName | MethodAttributes.RTSpecialName |
// MethodAttributes.Static, mod.TypeSystem.Void);
//mod.GetType("<Module>").Methods.Add(cctor);
//MethodBody bdy = cctor.Body = new MethodBody(cctor);
//ILProcessor psr = bdy.GetILProcessor();
//psr.Emit(OpCodes.Call, mod.Import(typeof(AppDomain).GetProperty("CurrentDomain").GetGetMethod()));
//psr.Emit(OpCodes.Ldnull);
//psr.Emit(OpCodes.Ldftn, t.Methods.FirstOrDefault(mtd => mtd.Name == "DecryptAsm"));
//psr.Emit(OpCodes.Newobj, mod.Import(typeof(ResolveEventHandler).GetConstructor(new Type[] { typeof(object), typeof(IntPtr) })));
//psr.Emit(OpCodes.Callvirt, mod.Import(typeof(AppDomain).GetEvent("AssemblyResolve").GetAddMethod()));
//psr.Emit(OpCodes.Ret);
MethodDefinition main = t.Methods.FirstOrDefault(mtd => mtd.Name == "Main");
mod.EntryPoint = main;
return(ProtectStub(asm));
}