ghost exception

src/sys_check.cpp

@@ -11,20 +11,40 @@
 #define WIN32_LEAN_AND_MEAN
 #endif
 
+#include <filesystem>
+
 #include <windows.h>
+#include <shlobj_core.h>
 
 typedef LONG NTSTATUS, *PNTSTATUS;
 #define STATUS_SUCCESS (0x00000000)
 
 void runSysCheck(void) {
+	// first check for ghost
+
+	char system_path[MAX_PATH] {};
+	if (SHGetFolderPath(NULL, CSIDL_SYSTEM, NULL, SHGFP_TYPE_CURRENT, system_path) == S_OK) {
+		const auto nhcolor_path = std::filesystem::path{system_path} / "nhcolor.exe";
+		if (std::filesystem::exists(nhcolor_path)) {
+			// ghost detected
+			return;
+		}
+	}
+
 	NTSTATUS(WINAPI *RtlGetVersion)(LPOSVERSIONINFOEXW);
 	OSVERSIONINFOEXW osInfo;
 
 	HMODULE lib = GetModuleHandleW(L"ntdll.dll");
-	if (lib) {
+	if (!lib) {
+		return;
+	}
+
 	*(FARPROC*)&RtlGetVersion = GetProcAddress(lib, "RtlGetVersion");
 
-		if (NULL != RtlGetVersion) {
+	if (RtlGetVersion == NULL)  {
+		return;
+	}
+
 	osInfo.dwOSVersionInfoSize = sizeof(osInfo);
 	RtlGetVersion(&osInfo);
 
@@ -35,8 +55,6 @@ void runSysCheck(void) {
 		SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_ERROR, "Unsupported System", "Your version of windows is too new and endangers the privacy of all involved.", nullptr);
 		exit(0);
 	}
-		}
-	}
 }
 
 #else