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Re: tee -a /dev/null



On Tue, 23 Mar 2004 09:27:57 -0500
Justin Pryzby <justinpryzby@users.sourceforge.net> wrote:
>
> I believe Richard and myself have been rooted; I returned from spring
> break to find my machine's inetd set to listen on tcp:21 and to fork a
> wu-ftpd, which does not exist.

Does anything else exist at the path invoked?  If someone comes knocking
at port 21, would anything get run?  What happens if you try port 21
yourself from some other machine?

Did you *ever* have wu-ftpd installed?  Maybe it was installed briefly,
and inetd.conf wasn't cleaned up afterwards?

Can you get a trusted chkrootkit on your machine?  What does it say?


>  Of interest:
> 
> 	root      6472     1  0 Mar10 ?        00:00:00 /bin/bash
> 	/etc/init.d/xprint posix_sh_forced restart
> 	root      6473  6472  0 Mar10 ?        00:00:00 /bin/bash
> 	/etc/init.d/xprint posix_sh_forced restart
> 	root      6474  6473  0 Mar10 ?        00:00:00 /usr/bin/Xprt -ac
> 	-pn-nolisten tcp -audit 4 -fp
> 	/usr/X11R6/lib/X11/fonts/Type1,/usr/X11R6/lib/X11/fonts/Type1/,/v
> 	ar/lib/ root      6477  6472  0 Mar10 ?        00:00:00 tee -a
> 	/dev/null root      6478  6472  0 Mar10 ?        00:00:00 logger
> 	-p lpr.notice -t Xprt_64

I'm definitely not an expert about xprint.  But other than the fact that
these have been sitting idle since Mar 10, this doesn't look crazy to me,
from a quick look at the /etc/init.d/xprint script.  The first two lines
show a normal invocation for /etc/init.d/xprint; the Xprt daemon has the
right command line arguments for what /etc/init.d/xprint would give it,
and the tee and logger processes are in there as well.  I think what
you're seeing here is Bug #234132.

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=234132

-c

-- 
Chris Metzler			cmetzler@speakeasy.snip-me.net
		(remove "snip-me." to email)

"As a child I understood how to give; I have forgotten this grace since I
have become civilized." - Chief Luther Standing Bear

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