public static void Main()
{
bool basicCheck = SteamApiValidator.IsValidSteamApiDll();
bool?advancedCheck = null;
if (SteamApiValidator.IsSteamClientUsed())
{
advancedCheck = SteamApiValidator.IsValidSteamClientDll();
}
var dirInfo = new DirectoryInfo(new Uri(Assembly.GetExecutingAssembly().CodeBase).LocalPath);
string gameName = dirInfo.Name;
dirInfo = dirInfo.Root;
if (basicCheck && advancedCheck == true || advancedCheck == null)
{
Console.WriteLine("No SteamClient DLL bundled! Great!");
Console.WriteLine($"Steam API/Client has passed first phase. Running {gameName}.");
}
else
{
if (!basicCheck)
{
Console.WriteLine("Steam API DLL has been tampered and missing the certificate.");
}
if (!advancedCheck == false)
{
Console.WriteLine("Steam client DLL has been tampered.");
}
Console.WriteLine("Due to Steam DRM tampering, game will not begin.");
Console.WriteLine("Press enter to quit.");
Console.ReadLine();
Environment.Exit(1);
}
Console.WriteLine($"Thank you for support {gameName}! Loading...");
string assemblyDataPath = Path.Combine(dirInfo.FullName, gameName + "_Data", "Managed", "Assembly-CSharp.dll");
Directory.SetCurrentDirectory(dirInfo.FullName);
IntPtr hPrevInstance = IntPtr.Zero;
NativeMethods.SetDllDirectory(dirInfo.FullName);
string niceArgs = string.Join(" ", new[] { Assembly.GetExecutingAssembly().CodeBase }.Concat(Environment.GetCommandLineArgs()));
if (GetChecksum(assemblyDataPath) == ASSEMBLY_SHA)
{
niceArgs += " --disable-achievements";
}
var dllModule = NativeMethods.LoadLibrary(Path.Combine(dirInfo.FullName + "UnityPlayer.dll"));
// TODO: Hop in appdomain and be cautious.
NativeMethods.UnityMain(Process.GetCurrentProcess().Handle, IntPtr.Zero, ref niceArgs, 1);
}
// Token: 0x0600033E RID: 830 RVA: 0x0000CBD0 File Offset: 0x0000ADD0
public static bool IsValidSteamClientDll()
{
IntPtr moduleHandle = SteamApiValidator.GetModuleHandle(Environment.Is64BitProcess ? "steamclient64.dll" : "steamclient.dll");
if (moduleHandle != IntPtr.Zero)
{
StringBuilder stringBuilder = new StringBuilder(32767);
if (SteamApiValidator.GetModuleFileName(moduleHandle, stringBuilder, 32767) > 0U)
{
return(SteamApiValidator.CheckIfValveSigned(stringBuilder.ToString()));
}
}
return(false);
}
// Token: 0x0600033D RID: 829 RVA: 0x0000CB50 File Offset: 0x0000AD50
public static bool IsValidSteamApiDll()
{
string text = Environment.Is64BitProcess ? "steam_api64.dll" : "steam_api.dll";
IntPtr intPtr = SteamApiValidator.GetModuleHandle(text);
if (intPtr == IntPtr.Zero)
{
intPtr = SteamApiValidator.LoadLibrary(text);
}
if (intPtr == IntPtr.Zero)
{
return(false);
}
if (intPtr != IntPtr.Zero)
{
StringBuilder stringBuilder = new StringBuilder(32767);
if (SteamApiValidator.GetModuleFileName(intPtr, stringBuilder, 32767) > 0U)
{
return(SteamApiValidator.CheckIfValveSigned(stringBuilder.ToString()));
}
}
return(false);
}