unsp...@hushmail.com writes

> >  I know, but I am not sure how to clean the machine without
> >  a completely loosing all the data.
> 
> Allow me to correct your scope: "cleaning" the system is not an 
> option (unless you have the skills, time and independent, 
> autonomous ways to unambiguously verify the filesystem, data and 
> backup integrity) and losing valuable data isn't your problem, or 
> put differently: if the user gained access to the root account then 
> basically all bets are off and *you don't know what she got 
> already*. 

  What she reads is not an issue. The data is all a public read,
  with the exeption of the stuff that would get somebody write
  access.

  I backed up /etc /root /var and /home and reinstalled the 
  rest, copying back those four directories when I was done.
  /etc/inittab was affected by the shv4/shv5, I copied
  a clean copy from anothor box. 

> For instance shell history might not show she transferred 
> passwords off the system. And if systems are connected and 
> passwords shared beween accounts then not taking drastic measures 
> now to contain the situation might even facilitate (easier) 
> compromise of other systems. 

  I had 10 other systems broken into during the same attack. Afaik
  this was the only one the attacker set up a root kit on. She
  probably was not excited by the stuff she saw on the other boxes.

  Thanks and cheers,

  Thomas Krichel                    http://openlib.org/home/krichel
                                RePEc:per:1965-06-05:thomas_krichel
                                               skype: thomaskrichel

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