On Fri, 31 Jan 2003 22:58:29 -0500 (EST), batz wrote:

>This seems important is because it shows that a high rate
>of saturation can be achieved among network nodes as
>effectively (if not more so) using random distribution, as by 
>using a structured or hierarchical distribution strategy. 

It might seem frightening that sapphire reached 90% infection in 10
minutes, but this is a feature of it's aggressive conectionless
scanning with single packets, and the small address space the internet
has, not it's particular scanning strategy. For a good discussion of
(much) more effective strategies read,

"How to 0wn the Internet in Your Spare Time"
http://www.icir.org/vern/papers/cdc-usenix-sec02/index.html

excerpt: "We discuss techniques subsequently employed for achieving
greater virulence by Code Red II and Nimda. In this context, we develop
and evaluate several new, highly virulent possible techniques: hit-list
scanning (which creates a Warhol worm), permutation scanning (which
enables self-coordinating scanning), and use of Internet-sized
hit-lists (which creates a flash worm). "

- Blazde

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