Hüssy oversees Zeustracker, a Web site listing Internet servers that uses Zeus, a kit sold for about $700 on shadowy cyber criminal forums to harvest data from computers infected with a password stealing Trojan horse program.
... and the even more relevant:
In early April, Hüssy began tracking a Zeus control server used to receive data stolen from a botnet of more than 100,000 infected systems, mostly located in Poland and Spain. While investigating this newfound Zeus control server, he noticed something unusual: the "kill operating system" had just been issued to all 100,000 infected systems.
So if I were to make a snarky list as well, I might say:
The article doesn't mention what OS Hüssy actually runs
The machines weren't his, he was monitoring a botnet control server to which they communicated
The only reason Hüssy was aware of them was because they were infected
He noted the "kos" command issued and wanted to bring awareness to it
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So if I were to make a snarky list as well, I might say:
Cheers.