Go External C2 Client implementation for cobalt strike.
使用Golang实现的External C2客户端，非常简单的反向TCP直接连接，仅供学习研究。
测试请将Main函数中的8.8.8.8:2222修改成External C2服务端的信息。
非常感谢以下优秀的项目作为本项目支撑：
https://github.com/microsoft/go-winio
https://github.com/ryhanson/ExternalC2/tree/master/go-external-c2
Implement External C2 by golang. Very simple reverse tcp. JUST FOR STUDY!
Before using, modify the address(8.8.8.8:2222) in function main in main.go to your External C2 address.
Thanks for the following projects:
https://github.com/microsoft/go-winio
https://github.com/ryhanson/ExternalC2/tree/master/go-external-c2