Threat Level: green Handler on Duty: Jim Clausing

SANS ISC: New DShield Feature: Highly Predictive Blocklists. SANS ISC InfoSec Forums

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New DShield Feature: Highly Predictive Blocklists.
I am happy to announce an exciting new feature to DShield submitters. Based on some research done by SRI International, we came up with an algorithm to create better blocklists.

The short one paragraph summary: The algorithm compares your submissions to others and finds groups of similar submitters. Next, it will generate blocklists based on how close you are to these other submitters.

In other simulations, these blocklists have been far superior to regular "global worst offender" or "local worst offender" lists.

For details, see

I will be teaching next: Intrusion Detection In-Depth - SANS Blue Team and Purple Team 2020


3871 Posts
ISC Handler
Apr 17th 2007

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