Mailinglist Archive: opensuse (3666 mails)

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Re: [SLE] My server got hacked? Anyoen seem this?
  • From: Henry Tang <henry@xxxxxxxxxxxxxx>
  • Date: Fri, 11 Mar 2005 00:57:14 -0600
  • Message-id: <4231414A.4050407@xxxxxxxxxxxxxx>
What i need to know now is what else can i do to find how this person hacked into my system. I checked message logs and mail logs and i found the date and time the email was sent out, but I dunno if the log files got cleaned or not. What other logs can i look into?

henry

Anders Johansson wrote:

On Friday 11 March 2005 05:39, Allen wrote:

On Thu, Mar 10, 2005 at 08:31:54PM +0100, Anders Johansson wrote:

On Thursday 10 March 2005 20:18, Henry Tang wrote:

The example i gave is bad. It is more like this

http://www.derkeiler.com/Newsgroups/comp.os.linux.security/2003-06/0473
.htm l

I didn't want to post the email my server was trying to send out
because it includes the /etc/passwd file so I posted examples i found
on the net. Apprently root tried to send out couple of emails to
unknown users of yahoo and other email address as well. The email was
bounced and that is how i found out. :( I am not in the competition.
:(

And is your machine a red hat machine?

How would this matter?


All the links I could find on the net that referred to that email were about red hat machines

It would matter in that he should contact red hat people about security fixes instead of suse. Not all bugs affect all distros. The Lion worm for example was red hat only


If your machine tries to send out that email, then it does indeed look
like you have been hacked. The information you give isn't nearly enough
to say how it was done though.

My machine does this, I'm not rooted.


er, what? Your machine does what? Did you actually read any of the links? The mail in question was from a rootkit worm-ish thing. If your machine sends that out then you've been hacked


What OS is the machine running? Is it patched with all available security
updates? Which services are you running on it?

Since the mail was never sent I suspect it hasn't been "owned", but just
caught by an automated script of some description. I would hazard a guess
that the log files haven't been cleaned, so you should still be able to
find traces of how they got in through them.

What if he just hasn't set up sendmail or postfix properly and THAT was why
the mail failed? All they have to do now is set up the mail server and they
get the mail.


huh? If they can get into the machine to set up the mail server, what would be the point of sending the mail?


If this machine is in production use, I would recommend that you let
someone look at it who knows about security.

He pointed out he was only using it for home use and it not a big deal.


Yes he did indeed. Except he pointed it out *after* I had sent the mail you replied to.




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