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本帖最后由 mceno 于 2014-6-18 23:59 编辑
近期,邮件服务器开始不大正常了,好多邮件收不到,也没退信。看了日志,有些古怪,如下:
"220 XXX.XXX.cn Microsoft ESMTP MAIL Service ready at Thu, 5 Jun 2014 08:00:18 +0800",
<,EHLO User,
250-XXX.XXX.cn Hello [74.208.72.28],
250-SIZE,
250-PIPELINING,
250-DSN,
250-ENHANCEDSTATUSCODES,
250-STARTTLS,
250-X-A{**此为已被过滤词语**}MOUSTLS,
250-AUTH NTLM LOGIN,
250-X-EXPS GSSAPI NTLM,
250-8BITMIME,
250-BINARYMIME,
250-CHUNKING,
250-XEXCH50,
250-XRDST,
250 XSHADOW,
AUTH LOGIN,
334 <authentication response>,
334 <authentication response>,
Inbound AUTH LOGIN failed because of LogonDenied
User Name: bailey
*,Tarpit for '0.00:00:05',
535 5.7.3 Authentication unsuccessful,
Remote
"220 XXX.XXX.cn Microsoft ESMTP MAIL Service ready at Thu, 5 Jun 2014 08:01:49 +0800",
EHLO [192.168.2.33],
250-XXX.XXX.cn Hello [212.174.252.130],
250-SIZE,
250-PIPELINING,
250-DSN,
250-ENHANCEDSTATUSCODES,
250-STARTTLS,
250-X-A{**此为已被过滤词语**}MOUSTLS,
250-AUTH NTLM LOGIN,
250-X-EXPS GSSAPI NTLM,
250-8BITMIME,
250-BINARYMIME,
250-CHUNKING,
250-XEXCH50,
250-XRDST,
250 XSHADOW,
AUTH LOGIN,
334 <authentication response>,
Inbound AUTH LOGIN failed because of LogonDenied
User Name: chat
Tarpit for '0.00:00:05',
535 5.7.3 Authentication unsuccessful,
AUTH LOGIN,
334 <authentication response>,
Inbound AUTH LOGIN failed because of LogonDenied
User Name: chat
Tarpit for '0.00:00:05',
535 5.7.3 Authentication unsuccessful,
AUTH LOGIN,
334 <authentication response>,
Inbound AUTH LOGIN failed because of LogonDenied
User Name: chat
Tarpit for '0.00:00:05',
535 5.7.3 Authentication unsuccessful,
AUTH LOGIN,
334 <authentication response>,
Inbound AUTH LOGIN failed because of LogonDenied
User Name: chat
Tarpit for '0.00:00:05',
Local
类似上面这样的事件很多,是有人在试图获取账号吗?还是被攻击了?
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