Some two months since the discovery of the Stuxnet worm made headlines and started speculations on who is behind it, Symantec's researchers have unearthed another piece of the puzzle that tells us a bit more about its likely target.

According to the latest results of the analysis of the worm's code, Stuxnet was developed to search for industrial control systems that have frequency converter drives from a specific Finnish or Iranian vendor - or from both. These drives function as a power supply that can change the speed of a motor by changing the frequency of the output.

More: http://www.net-security.org/malware_news.php?id=1533