NSP-SEC
Alex Lanstein
ALanstein at FireEye.com
Mon Mar 22 01:52:53 UTC 2010
>>>________________________________________
>>>From: Rich Kulawiec [rsk at gsp.org]
>>>Sent: Sunday, March 21, 2010 8:43 PM
>>>To: nanog at nanog.org
>>>Subject: Re: NSP-SEC
>>>
>>>There is, by the way, no relief from this due to events like the
>>>recent bust of the Mariposa botnet (13M systems);
The public numbers advertised were 13M _IPs_ connecting to a sinkhole over more than a month's time. When I've had visibility into other large botnets (srizbi, rustock, mega-d), I was consistently seeing a 10 to 1 IPs-to-unique-bots count over a time period of a week. Happy to make the raw pcap data available to anyone who is curious. The UCSB guys showed similar results in their excellent Torpig paper. http://www.cs.ucsb.edu/~seclab/projects/torpig/torpig.pdf
My unscientific finger-in-the-wind would put it at well under 1M when you are talking a month and a half of monitoring IP connections.
Regards,
Alex Lanstein
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