程序错误记录系统中出现了这个错误！！

xiaomu

自己的程序错误记录系统中出现了这个错误！！

  [111] => jyi= | time:20120713-0:23:20 | ip:220.181.158.219 | url:http://******.com:80/index.php?jilu=checked&domain=JyI%3D
    [112] => and 3=4 | time:20120713-0:23:27 | ip:220.181.158.219 | url:
    [113] => \' and(select 1 from(select count(*),concat((select (select concat(0x5e5e5e,unhex(hex(cast(database() as char))),0x5e5e5e)) from information_schema.tables limit 0,1),floor(rand(0)*2))x from information_schema.tables group by x)a) and \'1\'=\'1 | time:20120713-0:23:32 | ip:220.181.158.219 | url:
    [114] => .\\\\..\\\\..\\\\..\\\\..\\\\..\\\\.etcpasswd | time:20120713-0:23:38 | ip:220.181.158.219 | url:http://******.com:80/index.php?jilu=checked&domain=.\\./.\\./.\\./.\\./.\\./.\\./etc/passwd
    [115] => ������������������������etcpasswd | time:20120713-0:23:44 | ip:220.181.158.219 | url:http://******.com:80/index.php?jilu=checked&domain=%c0%ae%c0%ae%c0%af%c0%ae%c0%ae%c0%af%c0%ae%c0%ae%c0%af%c0%ae%c0%ae%c0%af%c0%ae%c0%ae%c0%af%c0%ae%c0%ae%c0%af%c0%ae%c0%ae%c0%af%c0%ae%c0%ae%c0%af/etc/passwd

难道有人想搞破坏？是神马目的？
有人读得懂这些是什么么？