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Date:      Thu, 04 May 2000 23:30:12 -0400
From:      Jim Durham <durham@w2xo.pgh.pa.us>
To:        freebsd-security@freebsd.org
Subject:   I got spammed from my localhost..
Message-ID:  <39124044.EAB72303@w2xo.pgh.pa.us>

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I discovered when I went to read my e-mail this evening a bunch of
mail from my Mailer-Daemon for non-existant addresses and such for
mail that I did not send.

I found that someone has been relaying through my sendmail all day
long. He is appearing as "localhost" which is an allowable address
to relay in my access database for sendmail.

Anybody know any place to start looking for a trojan horse or
something of that sort in my system? The security runs don't report
any new setuid root files.

The daily run output indicates that a system in korea was warned
many times of insufficient disk space. I would assume my
/var/spool/mqueue
filled up and that system is the perpetrator?

Any ideas appreciated...
-- 
Jim Durham


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