RE: Windows Dcom Worm planned DDoS

["Chris Eagle" <cseagle () redshift com>]

The code it uses to launch the DDoS looks like this:

   GetDateFormat(LANG_USER_DEFAULT, 0, NULL, "d", day, 3);
   GetDateFormat(LANG_USER_DEFAULT, 0, NULL, "M", mon, 3);
   if (atoi(day) > 15 || atoi(mon) > 8) {
      CreateThread(NULL, 0, SynFlood, NULL, 0, &temp);
   }

It only performs this test on startup, so if it happens to be running on a
machine on 8/14, it will not start a DDoS from that machine until the
machine is rebooted.

Chris

-----Original Message-----
From: full-disclosure-admin () lists netsys com
[mailto:full-disclosure-admin () lists netsys com]On Behalf Of Szappanos
Gábor (VBuster)
Sent: Tuesday, August 12, 2003 6:26 AM
To: Andrew Thomas; nick () virus-l demon co uk;
full-disclosure () lists netsys com
Subject: RE: [Full-disclosure] Windows Dcom Worm planned DDoS


> > The examinations of the code so far indicate that the worm is
> > coded to DoS the windowsupdate site from the 15th of August
> > onwards through the end of the year.
>
> I'll ignore the sloppiness in that description, as several of the
> published descriptions have (or at least initially got) it confused
> through slightly wrong too...

> The examinations of the code *that I have read so far* indicate
> that...?

... the Dos takes place any month it the day is after the 15th, or any day
if the month is after August. So starting from August 15th it wil DoS
windowsupdate.com to the end of the year, but the attack is possible in
earlier months as well. And it will not stop at the end of the year, just
gets paused for 15 days.

Regards,
Gabor Szappanos
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Charter: http://lists.netsys.com/full-disclosure-charter.html