我来到博客园的第一篇记录题目复现链接：https://www.nssctf.cn/problem/463题目源码：<?phpinclude'utils.php';if(isset($_POST['guess'])){$guess=(string)$_POST['guess'];if($guess===$secret){$message='Congratula

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[鹤城杯2021]NewMISC拿到文件发现是PDF打开文件，完全看不懂。用010打开后发现有一段中0920出现次数比较多，大概率为wbStego4open加密，上家伙使用工具wbStego4.3open进行解密最后一直点继续就行。