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로그 :
Jun 26 11:15:15 www sendmail[27135]: g5Q2FES27135: collect: premature EOM: Error 0 

분석 :
premature EOM : Error 0 로그는 Nimba Worm 에 의해 자주 발생하는 mail log중 하나이다.
공격에 의한 로그는 아니며, network상의 일시적인 문제나, 호스트의 연결이 갑자기 끊어질 경우 로 생각하면 될것이다.
이 로그 다음에 아래의 로그가 보인다면 갑자기 접속이 끊어졌다고 보면 될것이다.

Jun 26 11:15:15 www sendmail[27135]: g5Q2FES27135: collect: unexpected close on connection from [XXX.XXX.XXX.XXX], sender=: Error 0 

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    Jun 26 11:15:15 www sendmail[27135]: g5Q2FES27135: collect: premature EOM: Error 0

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