Security Incidents: Re: Possible break in

[ben <ben () electricfork com>]

Just ran strings against the two files.  dbproc looks like a version of  
the suckit rootkit, gnorp didn't look familar to me.  I'd check the  
timestamps on the two files and do a find on your system for files that  
have been written to your filesystem since that date.  then look closer  
at any said files, and logs generated durring that  time.
-Ben
On Mar 22, 2004, at 10:31 AM, Alexandros Kyriakides wrote:

> I am wondering if anyone can give me some help with this incident. The
> only related thing I found on-line was this:
>
> http://www.taclug.org/pipermail/taclug-general/2003-July/007821.html
>
>
>
> The box I have is running linux mandrake 8.0. What I have found until  
> now
> is the following:
>
>
> 1) Two new binary files:
>
> /usr/bin/dbproc
> /usr/bin/gnorp
>
>
>
> 2) Appended at the end of inittab and rc.local:
>
> inittab:
> a:2345:once:/usr/bin/dbproc
> a:2345:once:/bin/end
>
> rc.local:
> #Starting gnorp
> /usr/bin/gnorp
> #The End
> /bin/end
>
>
> 3) lsattr gives:
>
> suS-iadAcj--- /etc/inittab
> suS-iadAcj--- /etc/rc.local
>
>
>
>
> Has anyone seen this before? I am also interested in finding out how  
> this
> happened, if possible. Any help is greatly appreciated.
>
>
> The two binary files can be found at:
>
> http://web.mit.edu/alex1/www/binaries/
>
>
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