Marshall Brain's Blog

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Just the title is scary: Zombie PCs spew out 80% of spam

From the article:

Four-fifths of spam now emanates from computers contaminated with Trojan horse infections, according to a study by network management firm Sandvine out this week. Trojans and worms with backdoor components such as Migmaf and SoBig have turned infected Windows PCs into drones in vast networks of compromised zombie PCs.

Surely, at the ISP level, it must be possible to detect these computers and shut them down. It is hard to believe that this is going on in the year 2004...