Re: DCOM Worm released

[Dennis Opacki <dopacki () adotout com>]

Never mind. SANS now indicates:

Infection sequence:

1. SOURCE sends packets to port 135 tcp with variation of dcom.c exploit
   to TARGET
2. this causes a remote shell on port 4444 at the TARGET
3. the SOURCE now sends the tftp get command to the TARGET, using the
   shell on port 4444,
4. the target will now connect to the tftp server at the SOURCE.


On Mon, 11 Aug 2003, Dennis Opacki wrote:

> Can anyone confirm whether the tftp transfers appear to be solely from the
> hosts listed in the initial sans.org note (which now appear to have been
> taken down), or is the transfer done from the infecting host?
>
> TIA,
>
> -Dennis
>
> On Mon, 11 Aug 2003, Joey wrote:
>
> > They found a worm, but since it uses tftp servers that
> > can be taken down and since tftp is slow, it shouldnt
> > have much of an effect.
> >
> > "Scans sequentially for machines with open port 135,
> > starting at a presumably random IP address" - very
> > stupid way to spread!
> >
> > http://isc.sans.org/diary.html?date=2003-08-11
> >
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