login_check.php 파일 접속에 관한 문의 채택완료

해외에서 호스팅 서비스를 받고 있는데

오늘 오후 접속이 느려지고 서버가 다운되더니

바이러스, 어쩌고 저쩌고의 이유로 호스팅 계정이 비활성화 되어 홈페이지 접속이 되지 않습니다.

디비를 다운받아 로그를 보니

('58.146.228.61', '', '2014-08-05 19:05:54', '오류안내 페이지', '/bbs/login_check.php?url=%252Fbbs%252Fregister.php&mb_id=sdfsdf&mb_password=sdfsdfsd'),
('183.106.84.223', '', '2014-08-05 19:05:57', '오류안내 페이지', '/bbs/login_check.php?url=%252Fbbs%252Fregister.php&mb_id=sdfsdf&mb_password=sdfsdfsd'),
('115.23.194.229', '', '2014-08-05 19:05:57', '오류안내 페이지', '/bbs/login_check.php?url=%252Fbbs%252Fregister.php&mb_id=sdfsdf&mb_password=sdfsdfsd'),
('222.102.178.32', '', '2014-08-05 19:05:52', '오류안내 페이지', '/bbs/login_check.php?url=%252Fbbs%252Fregister.php&mb_id=sdfsdf&mb_password=sdfsdfsd'),
('112.154.180.81', '', '2014-08-05 19:05:53', '오류안내 페이지', '/bbs/login_check.php?url=%252Fbbs%252Fregister.php&mb_id=sdfsdf&mb_password=sdfsdfsd'),
('125.177.119.167', '', '2014-08-05 19:05:57', '오류안내 페이지', '/bbs/login_check.php?url=%252Fbbs%252Fregister.php&mb_id=sdfsdf&mb_password=sdfsdfsd'),
('222.100.180.195', '', '2014-08-05 19:05:51', '오류안내 페이지', '/bbs/login_check.php?url=%252Fbbs%252Fregister.php&mb_id=sdfsdf&mb_password=sdfsdfsd'),
('125.176.232.87', '', '2014-08-05 19:05:49', '오류안내 페이지', '/bbs/login_check.php?url=%252Fbbs%252Fregister.php&mb_id=sdfsdf&mb_password=sdfsdfsd'),
('118.34.134.194', '', '2014-08-05 19:05:12', '오류안내 페이지', '/bbs/login_check.php?url=%252Fbbs%252Fregister.php&mb_id=sdfsdf&mb_password=sdfsdfsd'),
('14.39.34.56', '', '2014-08-05 19:03:10', '오류안내 페이지', '/bbs/login_check.php?url=%252Fbbs%252Fregister.php&mb_id=sdfsdf&mb_password=sdfsdfsd'),
('220.125.113.242', '', '2014-08-05 19:05:39', '오류안내 페이지', '/bbs/login_check.php?url=%252Fbbs%252Fregister.php&mb_id=sdfsdf&mb_password=sdfsdfsd'),
('211.192.181.220', '', '2014-08-05 19:05:43', '오류안내 페이지', '/bbs/login_check.php?url=%252Fbbs%252Fregister.php&mb_id=sdfsdf&mb_password=sdfsdfsd'),
('220.81.59.208', '', '2014-08-05 19:05:52', '오류안내 페이지', '/bbs/login_check.php?url=%252Fbbs%252Fregister.php&mb_id=sdfsdf&mb_password=sdfsdfsd'),
('59.0.12.162', '', '2014-08-05 19:04:04', '오류안내 페이지', '/bbs/login_check.php?url=%252Fbbs%252Fregister.php&mb_id=sdfsdf&mb_password=sdfsdfsd'),
('112.149.1.154', '', '2014-08-05 19:05:57', '오류안내 페이지', '/bbs/login_check.php?url=%252Fbbs%252Fregister.php&mb_id=sdfsdf&mb_password=sdfsdfsd'),
('121.162.213.147', '', '2014-08-05 19:05:48', '오류안내 페이지', '/bbs/login_check.php?url=%252Fbbs%252Fregister.php&mb_id=sdfsdf&mb_password=sdfsdfsd'),
('219.251.238.101', '', '2014-08-05 19:05:56', '오류안내 페이지', '/bbs/login_check.php?url=%252Fbbs%252Fregister.php&mb_id=sdfsdf&mb_password=sdfsdfsd'),
('27.35.127.232', '', '2014-08-05 19:05:14', '오류안내 페이지', '/bbs/login_check.php?url=%252Fbbs%252Fregister.php&mb_id=sdfsdf&mb_password=sdfsdfsd'),
('211.195.41.55', '', '2014-08-05 19:05:53', '오류안내 페이지', '/bbs/login_check.php?url=%252Fbbs%252Fregister.php&mb_id=sdfsdf&mb_password=sdfsdfsd'),
('222.106.243.205', '', '2014-08-05 19:05:53', '오류안내 페이지', '/bbs/login_check.php?url=%252Fbbs%252Fregister.php&mb_id=sdfsdf&mb_password=sdfsdfsd'),
('218.148.31.21', '', '2014-08-05 19:02:42', '오류안내 페이지', '/bbs/login_check.php?url=%252Fbbs%252Fregister.php&mb_id=sdfsdf&mb_password=sdfsdfsd'),
('61.79.218.153', '', '2014-08-05 19:04:14', '오류안내 페이지', '/bbs/login_check.php?url=%252Fbbs%252Fregister.php&mb_id=sdfsdf&mb_password=sdfsdfsd'),​

짧은 시간 동안 위와 같은 접속이 엄청 많이 이루어졌네요.

저게 어떤 내용일까요? ㅠ