diff --git a/README.md b/README.md
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 -  [TimelineSec-2020年漏洞复现大全](https://github.com/TimelineSec/2020-Vulnerabilities)
 -  [Kerberos协议到票据伪造](./books/Kerberos协议到票据伪造.pdf)-[原文地址](https://www.zjun.info/2020/kerberos.html)
 -  [抓取HASH的10001种方法](./books/抓取HASH的10001种方法.pdf)-[原文地址](https://mp.weixin.qq.com/s/6mwms9LtLE6cK0ukpoSMmg)
+-  [C#免杀之自实现DNS服务器传输shellcode](./books/C#免杀之自实现DNS服务器传输shellcode.pdf)
 
 
 ## <span id="head9"> 说明</span>
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