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Re: Have I been hacked?



Hello,

The SSH error is usually caused by the SSH server (your machine) being
reformatted, or having SSH uninstalled and reinstalled, or have the
public/private keys regenerated for some reason. have you recently made any
changes to SSH, or reinstalled your system??

It could also happen if he has been making changes to his "~/.ssh/known_hosts" file.

HTH...

Richard.


Quoting Ian Goodall <ijg@iangoodall.co.uk>:

> Thanks for your help Guys.
> 
> It now says this:
> 
> > wtmp begins Wed May  7 13:21:47 2003
> 
> I think that is what had happened. I am new to this and this just looked
> dodgy to me!
> 
> A friend also has ssh shell access to the box and got the following error
> message when connecting to the same my box:
> 
> @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
> 
> @ WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! @
> 
> @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
> 
> IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!
> 
> Someone could be eavesdropping on you right now (man-in-the-middle attack)!
> 
> It is also possible that the RSA host key has just been changed.
> 
> The fingerprint for the RSA key sent by the remote host is
> 
> 51:bd:cd:2e:6a:b7:35:b9:54:33:a8:e2:9a:57:95:0d.
> 
> Please contact your system administrator.
> 
> I don't get this from any other computers so is this just his computer?
> 
> Thanks
> 
> ----- Original Message ----- 
> From: "Eric LeBlanc" <inouk@igt.net>
> To: "Ian Goodall" <ijg@iangoodall.co.uk>
> Cc: <debian-security@lists.debian.org>
> Sent: Wednesday, May 07, 2003 3:23 PM
> Subject: Re: Have I been hacked?
> 
> 
> >
> > Check if your program have rotated the logs...
> >
> > cd /var/log
> >
> > ls -l wtmp*
> >
> > and, check in /etc/cron* or do a crontab -l (in user root)
> >
> >
> > E.
> > --
> > Eric LeBlanc
> > inouk@igt.net
> > --------------------------------------------------
> > UNIX is user friendly.
> > It's just selective about who its friends are.
> > ==================================================
> >
> > On Wed, 7 May 2003, Ian Goodall wrote:
> >
> > > I am running a debian woody server and when I checked the last users
> > > yesterday I a large number of logins in the list. On running the command
> > > today I get the following:
> > >
> > > dev1:/home/ian# last
> > > ian      pts/0        172.16.3.195     Wed May  7 14:49   still logged
> in
> > > team1    pts/0        blue99.ex.ac.uk  Wed May  7 13:21 - 13:57  (00:35)
> > >
> > > I have run chkrootkit but nothing was found.
> > >
> > > I have never had this before. Am I being paranoid or is someone trying
> to
> > > cover up their tracks?
> > >
> > > Thanks
> > >
> > > ijg0
> > >
> > >
> > >
> > > --
> > > To UNSUBSCRIBE, email to debian-security-request@lists.debian.org
> > > with a subject of "unsubscribe". Trouble? Contact
> listmaster@lists.debian.org
> > >
> >
> 
> 
> -- 
> To UNSUBSCRIBE, email to debian-security-request@lists.debian.org
> with a subject of "unsubscribe". Trouble? Contact
> listmaster@lists.debian.org
> 
> 


-- 
Richard Hobbs
hobbs@mongeese.co.uk
http://mongeese.co.uk | http://unixforum.co.uk

"There's only one way of life, and that's your own" - The Levellers

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