Re: Re: New LSASS-based worm finally here (Sasser)

[Javier Fernandez-Sanguino <jfernandez () germinus com>]

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Jason wrote:
>
> Javier Fernandez-Sanguino wrote:
>
> [...]
>
>>
>> [1] Approaching the record of worms in other OS, which, I
>> believe, is held by Scalper (10 days from patch to worm). But
>> hey, they could browse the source changes for that one.
>>
>
> It did not attack an OS directly but I believe the witty worm [1]
> holds the record to date. A 1 day window from advisory to release,
> it attacked and destroyed a security component that was supposed to
> protect against these issues...

You're right. I forgot about witty, I read CAIDA's analysis of the
worm just yesterday.

Still, the infected population of witty was pretty small (I believe
~12,000 machines in a day?) compared to SQLexp (~200,000 [1]),
Slammer
(~75,000-100,000 [2]), CodeRed (~360,000 in 12 hours [3]), Nimda
(around 1.6 times CodeRed, maybe over 500,000 systems? [4]). I don't
find data for Blaster, but I presume it infected  many more systems
than Nimda.  So I believe we might be facing a worm that will infect
over 1,000,000 systems.

Probably anti-virus vendors will have more accurate data. But I
haven't seen it, not even in Symantec's (excellent) Threat Report V
(December 2003) [5]. In any case, this worm was "predicted" by that
same report. I would like to suggest everyone to read it thouroughly
(Disclaimer: I don't work at Symantec).

Regards

Javier


[1] http://securityresponse.symantec.com/avcenter/Analysis-SQLExp.pdf
[2] http://www.caida.org/analysis/security/sapphire/
[3] http://www.caida.org/analysis/security/code-red/
[4] http://www.first.org/events/progconf/2002/d5-02-song-slides.pdf
[5]
http://enterprisesecurity.symantec.com/content.cfm?articleid=1539&EID=
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