> For the complete documentation index, see [llms.txt](https://gitbook-88.gitbook.io/ctf-writeup/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-yang-cheng-bei/easycon.md).

# easycon

简单题，访问index.php直接提示"eval post cmd"，蚁剑一把梭。

下载下来的bbbbbbbb.txt文件为图片，打开即可。