From owner-freebsd-security  Fri Nov  2  4:53:50 2001
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Date: Fri, 2 Nov 2001 07:53:37 -0500 (EST)
From: Ralph Huntington <rjh@mohawk.net>
To: Krzysztof Zaraska <kzaraska@student.uci.agh.edu.pl>
Cc: <freebsd-security@FreeBSD.ORG>
Subject: Re: SubSeven trojan horse
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> > One of our FreeBSD 4.2-RELEASE machines is accused by mynetwatchman.com of
> > launching a SubSeven trogan horse attach. However, I do not find anything
> > odd about this machine.
> >
> > Is this even possible? I thought subseven was a Windows thing. Can it be
> > launched from bsd? Thanks.	- Ralph
>
> It's unclear what they mean by launching an attack.

I think they meant a port probe.

> I never researched this subject, but AFAIK Windoze trojans are
> client/server programs with server running on victim's machine. Client
> software is used by attacker to control victim's machine by sending
> requests to server. So the existence of SubSeven client for BSD cannot
> be ruled out (I guess such code is easily portable -- all you need are
> BSD sockets; for example there's BackOrifice client in /usr/ports and
> this is almost the same). So someone could compromise your machine and
> run SubSeven client from there connecting to some windoze box.
> Unfortunately, I guess, the client may even run without root
> priviledges.

Interresting. One ouwld be able to see the client running if that were the
case, yes?

> As of spoofed attack... IIRC, BackOrifice used UDP, SubSeven may do so
> also, so sending spoofing requests should be possible.

But a probe could be spoofed, could it not?


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