找能点动的东西，再看源码，没东西就扫
看到隐藏的东西
/Archive_room.php
/end.php
访问页面不同了，典型302重定向
抓包修改
抓到
得到新页面
简单的代码，可以看到是伪协议文件包含
URL/?file=php://filter/read=convert.base64-encode/resource=flag.php
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