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Date:      Thu, 18 Oct 2001 17:38:31 -0600
From:      "Tomek" <tomek@mpionline.com>
To:        <freebsd-security@FreeBSD.ORG>
Subject:   I got hacked, not login wise, software wise
Message-ID:  <06cf01c1582d$ff363600$f6f073d1@mpionline.com>
References:  <20011018131823.Y621-100000@jodie.ncptiddische.net> <011e01c157cf$9b401700$f6f073d1@mpionline.com> <20011018165057.V3734@ns2.wananchi.com> <01e701c157e4$f012abc0$f6f073d1@mpionline.com> <20011018180513.C3734@ns2.wananchi.com> <20011018114805.E70327@acadia.ne.mediaone.net> <018801c157ef$37ec0720$f6f073d1@mpionline.com> <03db01c15812$c4575d40$f6f073d1@mpionline.com>

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Hello there,

==QUICK SUMMARY TO NOT WASTE YOUR TIME===
=Without a doubt I have been hacked
=Noone should have any accounts or access except me
=They managed to create some files in /  to unzip and install sudo
=They seemed to be running under "Broot"
=They tried to make user "l-x" as wheel but failed to login
=They repeatedly have tried anonymous ftp and failed

Why I think it is NOT a login hack but some kind of buffer or software
hack
=log files show nothing about logins
=doubtful they just covered their tracks because they left files sitting
in / as well as left the user "l-x"

===MY SUMMARY===
I think they found a way to get some program (I use a limited and
careful selection of them) to create the files as "Broot" and they tried
to find a way to login but failed. I am NOT sure about this, maybe they
did cover their tracks but were sloppy and left more obvious hints.

===MY QUESTIONS===
=1= I have a user "Broot", I noticed it only a few days after installing
FreeBSD 4.3-RELEASE (GENERIC) #0. Is it normal? Many say they do not
have it, but on google a search shows many do.

=2= Is there ANY way of determining WHICH program/process has allowed
commands to be run to create/install "sudo" (which is what the hacker
has installed). It is NOT a logged in user that installed it. Maybe
there are some logs for what processes were running at the time, what
process made a file, or whatever.

=3= Any other advice?

NOTE: I have not yet notified the hacker I am on to them, I am hoping to
catch them doing something so I know what they are after. But they may
realize I am on to them by now.


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