详细描述 破解 QQ2009的密码后台记录过程与核心思路； 并根据逐步排查漏洞分析，找到最终的突破口；可以做*用；提供一个思路-A detailed descr iption of the password cracking QQ2009 background recording process and the core ideas Vulnerability Analysis based on step by step investigation to find the fina