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in Windows steamclient_loader only spawn the exe after doing all the registery modifications

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This commit is contained in:
otavepto 2023-12-27 12:45:00 +02:00
parent daa32ecca5
commit 56b73df775
1 changed files with 19 additions and 17 deletions
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36
tools/steamclient_loader/win/ColdClientLoader.cpp
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@ -34,13 +34,6 @@ int APIENTRY wWinMain(_In_ HINSTANCE hInstance, _In_opt_ HINSTANCE hPrevInstance
WCHAR ExeCommandLine[4096] = { 0 };
WCHAR AppId[128] = { 0 };
STARTUPINFOW info = { 0 };
SecureZeroMemory(&info, sizeof(info));
info.cb = sizeof(info);
PROCESS_INFORMATION processInfo = { 0 };
SecureZeroMemory(&processInfo, sizeof(processInfo));
int Length = GetModuleFileNameW(GetModuleHandleW(NULL), CurrentDirectory, sizeof(CurrentDirectory)) + 1;
for (int i = Length; i > 0; i--) {
if (CurrentDirectory[i] == '\\') {
@ -107,14 +100,6 @@ int APIENTRY wWinMain(_In_ HINSTANCE hInstance, _In_opt_ HINSTANCE hPrevInstance
return 1;
}
WCHAR CommandLine[16384] = { 0 };
_snwprintf(CommandLine, _countof(CommandLine), L"\"%ls\" %ls %ls", ExeFile, ExeCommandLine, lpCmdLine);
if (!ExeFile[0] || !CreateProcessW(ExeFile, CommandLine, NULL, NULL, TRUE, CREATE_SUSPENDED, NULL, ExeRunDir, &info, &processInfo))
{
MessageBoxA(NULL, "Unable to load the requested EXE file.", "ColdClientLoader", MB_ICONERROR);
return 1;
}
HKEY Registrykey = { 0 };
// Declare some variables to be used for Steam registry.
DWORD UserId = 0x03100004771F810D & 0xffffffff;
@ -136,7 +121,6 @@ int APIENTRY wWinMain(_In_ HINSTANCE hInstance, _In_opt_ HINSTANCE hPrevInstance
if (RegCreateKeyExW(HKEY_CURRENT_USER, L"Software\\Valve\\Steam\\ActiveProcess", 0, 0, REG_OPTION_NON_VOLATILE,
KEY_ALL_ACCESS, NULL, &Registrykey, NULL) != ERROR_SUCCESS)
{
TerminateProcess(processInfo.hProcess, NULL);
MessageBoxA(NULL, "Unable to patch Steam process informations on the Windows registry.", "ColdClientLoader", MB_ICONERROR);
return 1;
}
@ -166,10 +150,28 @@ int APIENTRY wWinMain(_In_ HINSTANCE hInstance, _In_opt_ HINSTANCE hPrevInstance
// Close the HKEY Handle.
RegCloseKey(Registrykey);
// spawn the exe
STARTUPINFOW info = { 0 };
SecureZeroMemory(&info, sizeof(info));
info.cb = sizeof(info);
PROCESS_INFORMATION processInfo = { 0 };
SecureZeroMemory(&processInfo, sizeof(processInfo));
WCHAR CommandLine[16384] = { 0 };
_snwprintf(CommandLine, _countof(CommandLine), L"\"%ls\" %ls %ls", ExeFile, ExeCommandLine, lpCmdLine);
if (!ExeFile[0] || !CreateProcessW(ExeFile, CommandLine, NULL, NULL, TRUE, CREATE_SUSPENDED, NULL, ExeRunDir, &info, &processInfo))
{
MessageBoxA(NULL, "Unable to load the requested EXE file.", "ColdClientLoader", MB_ICONERROR);
return 1;
}
// run and wait
ResumeThread(processInfo.hThread);
WaitForSingleObject(processInfo.hThread, INFINITE);
CloseHandle(processInfo.hProcess);
CloseHandle(processInfo.hThread);
CloseHandle(processInfo.hProcess);
if (orig_steam) {
if (RegOpenKeyExW(HKEY_CURRENT_USER, L"Software\\Valve\\Steam\\ActiveProcess", 0, KEY_ALL_ACCESS, &Registrykey) == ERROR_SUCCESS)