这是被攻击的迹象么？小白看不懂

今天发现error记录有这么一条，看起来很奇怪，这是被攻击的迹象么？

File does not exist: /alidata/www/bbs/space-uid-17.html++++++++++++++++++++++++++++++++++++++++++Result:+\xce\xd8\xc8\xc1\xca\xc0+\xd1\xc5\xd0\xc2\xc5\xd0\xc0+(host+www.XXXXXXXX.commember.php);+\xed\xe5+\xed\xe0\xf8\xeb\xee\xf1\xfc+\xf4\xee\xf0\xec\xfb+\xe4\xeb\xff+\xee\xf2\xef\xf0\xe0\xe2\xea\xe8;, referer: http://www.XXXXXXX.com/space-uid-17.html++++++++++++++++++++++++++++++++++++++++++Result:+%CE%D8%C8%C1%CA%C0+%D1%C5%D0%C2%C5%D0%C0+%28host+www.XXXXXXX.commember.php%29;+%ED%E5+%ED%E0%F8%EB%EE%F1%FC+%F4%EE%F0%EC%FB+%E4%EB%FF+%EE%F2%EF%F0%E0%E2%EA%E8;