Sobig.f surprise attack today

Fri Aug 22 21:37:48 UTC 2003

I don't think the purpose was to DoS them.  It looks like some of them were
hosts on Comcast's cable network, probably some user machines being used to
host the second part of the payload.

I just want to know what the second part of this thing does.  It's better
than watching TV.  :)

> -----Original Message-----
> From: Mark Segal [mailto:MSegal at Corporate.FCIBroadband.com]
> Sent: Friday, August 22, 2003 4:05 PM
> To: 'netadm'; 'nanog at merit.edu'
> Subject: RE: Sobig.f surprise attack today
> 
> 
> 
> My questions is what were those servers.. Was the purpose to denial of
> service attack them?  If so we just assisted that.. :)
> 
> mark
> 
> 
> --
> Mark Segal 
> Director, Network Planning
> FCI Broadband 
> Tel: 905-284-4070 
> Fax: 416-987-4701 
> http://www.fcibroadband.com
> 
> Futureway Communications Inc. is now FCI Broadband
> 
> 
> -----Original Message-----
> From: netadm [mailto:netadm at infolink.com] 
> Sent: August 22, 2003 3:50 PM
> To: nanog at merit.edu
> Subject: RE: Sobig.f surprise attack today
> 
> 
> 
> From http://www.f-secure.com/v-descs/sobig_f.shtml
> -----------------------------------------------------------------
> Update on 19:00 UTC 
> 
> When deadline for the attack was passed, one machine was still
> (somewhat) up. However, immediatly after the deadline, this 
> machine (located
> in the USA) was totally swamped under network traffic. 
> 
> We've tried connecting to it, just like the virus does. We do 
> this from
> three different sensors from three different machines in 
> three different
> countries. We haven't been able to connect to it once. If we 
> can't connect,
> neither can the viruses. 
> 
> So the attack failed. Whoa. 
> 
> We'll keep monitoring until 22:00 UTC. If we're not able to 
> connect once, we
> can safely say that the attack was prevented. 
> 
> 
> -----Original Message-----
> From: Andrew Kerr [mailto:andrew_kerr at iamnos.ca] 
> Sent: Friday, August 22, 2003 3:43 PM
> To: Jay Hennigan
> Cc: nanog at merit.edu
> Subject: Re: Sobig.f surprise attack today
> 
> 
> 
> Jay Hennigan wrote:
> > On Fri, 22 Aug 2003, Andrew Kerr wrote:
> > 
> > 
> >>Its been posted here, and f-secure has it, but I wrote a 
> quick script
> >>to keep an eye on the 20 servers and dump the output to a 
> simple page:
> >>
> >>http://207.195.54.37/sobig.html
> >>
> >>(Updates about every 5 mins)
> > 
> > 
> > You're probing the list of NTP servers the worm uses to get 
> the date,
> > not the list of hosts to which it "phones home".
> > 
> 
> 
> A few people pointed that out.  By the time this message hits 
> the list, 
> it should be corrected.
> 