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Re: Hidden processes....or not....using unhide package





On 13/04/2008, Alex Samad <alex@samad.com.au> wrote:
On Sun, Apr 13, 2008 at 05:31:53PM +0100, Robin wrote:
> On 13/04/2008, NN_il_Confusionario <pinkof.pallus@tiscalinet.it> wrote:
> >
> > On Sun, Apr 13, 2008 at 02:41:55PM +0100, Robin wrote:
> > > unhide proc :- Which gives intermittent hidden processes
> > > unhide sys  :-  [*]Searching for Hidden processes through getsid()
> > scanning
> > >                                 Found HIDDEN PID: 16356
> > >                 [*]Searching for Hidden processes through
> > sched_getscheduler() scanning
> > >                                 Found HIDDEN PID: 17408
> > > unhide brute :-[*]Starting scanning using brute force against PIDS
> > >                                 Found HIDDEN PID: 2216
> > >                                 Found HIDDEN PID: 2503
> >
> >
> > You could also try
> > netatst -anp|less
> > unhide-tcp
> >
> > If someone hacked the box, probably a net process was used to enter and
> > new net processes are spanned.
> >
> > Moreover:
> >
> >   apt-cache search forensic
> >
> >    Linkname: Securing Debian Manual
> >         URL: http://www.debian.org/doc/user-manuals#securing
> >
> > might give further ideas


I downloaded this and installed it, just to try (unhide) and it found
lots of hidden processes through unhide sys.

different pids each time. so i ran this

  >/tmp/thelist; for x in $(seq 1 2000); do echo 1 >/dev/null & echo $! >> /tmp/thelist ; done

out of curiosity, it did not miss a pid, which makes me think unhide
raises a lot of false positives ?

I'm coming to that conclusion. Netstat showed nothing suspicious.

Thanks to all

--
rob


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