North American Network Operators Group

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Re: Quarantine your infected users spreading malware

  • From: Bill Nash
  • Date: Tue Feb 21 10:34:34 2006

On Tue, 21 Feb 2006, [email protected] wrote:

Why not just bypass them and go direct to the unwashed
masses of end users? Offer them a free windows
infection blocker program that imposes the quarantine
itself locally on the user's machine. This program
Offering them free software won't work to the levels you want. At first, you'll get a response, because consumers always jump at free shiny things, until something happens that makes them not like it anymore, and then they'll dig in and never use it again. If you want to get this kind of filtering into your core, you have a need to get this to a compulsory level for access.

I don't think there's any disagreement as to the roots of this problem:
- Modern users are generally clueless.
- Most don't have firewalls or even the most basic of protections.
- Getting tools deployed where they need to be most is the hardest.

With that said..

If you're talking about a compulsory software solution, why not, as an ISP, go back to authenticated activity? Distribute PPPOE clients mated with common anti-spyware/anti-viral tools. Pull down and update signatures *every time* the user logs in, and again periodically while the user is logged in (for those that never log out). Require these safeguards to be active before they can pass the smallest traffic.

The change in traffic flow would necessitate some architecture kung fu, maybe even AOL style, but you'd have the option of selectively picking out reported malicious/infected users (*cough* ThreatNet *cough*) and routing them through packet inspection frameworks on a case by case basis. Quite possibly, you could even automate that and the users would never be the wiser.

- billn