在服务器日志发现这样的 UA：

be aware this a vulnerable scanner from me if you see this maybe your host was vuln or hacked !!! if this UA help you buy me a coffe with btc to bc1qxfxmv06dwse3u5k5ugmg3ljh6246880x60ftlq

这特么，果断腾讯云开启安全组，限制入站 ip。