Home > Picking at a Virus-Ridden Corpse:
Lessons from a Post-Blaster, Post-Welchia, Post-Nachi, Post Mortem

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Picking at a Virus-Ridden Corpse:
Lessons from a Post-Blaster, Post-Welchia, Post-Nachi, Post Mortem

9/17/2003

J'e St Sauver, director of user services and network applications at the University of Oregon Computing Center, has just gone through what everyone else has: the epidemic of viruses and worms that rained down on campus networks over the last several months.

As our guest editorialist this week, J'e has some strong opinions on why some people got hit so hard and others didn’t. He also has some good lessons-learned. Oh, J'e also wanted me to point out that his perspectives here do not reflect difficulties or conditions at either his institution or any one particular institution. They are "a synthesized view that reflects the collective higher education experience."

—Terry Calhoun, IT Trends Commentator, Society for College and University Planning (SCUP), University of Michigan.
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Sick of the Blaster/Lovsan, Welchia, Nachi experience? I know I am.

Let's do a brief post mortem and see what good we can glean from the latest virus follies.

1. It's Windows PCs (again)
D'es your campus rely on PCs running a current version of Microsoft Windows? If so, I suspect you were hit hard. Campuses that use Macs (or Unix/Linux workstations, or a mixture of different types of systems) experienced fewer direct problems, although even the most innocent shouldered part of the collective burden.

Do we never learn? Just as these viruses targeted PCs running Microsoft Windows, so have virtually all the previous ones. Time after time, infestation after infestation, the viruses and the worms have come for the PCs running Microsoft Windows, and time after time, the PCs running Microsoft Windows have fallen.

Given that pattern, what is surprising (at least to me), is that few universities seem to notice this pattern, and even fewer of them "vote with their purchase orders" in favor of more secure/less commonly attacked systems.

D'es this mean that I would like all sales of Windows PCs to cease? No. What I do want is a healthy level of operating system diversity, because in computing (as in agriculture or a stock portfolio) diversity is key to managing risk and building resilience.

2. That Perimeter Fence Sure Looked Good

Institutional firewalls are a staple security recommendation on every IT auditor's checklist. Unfortunately, the recent viruses have illustrated just how ineffectual they can be. Failure modes were numerous at many sites and for many reasons, including:



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