Kaspersky Security Network: Duqu attacks limited to an extremely small number of targets. Our experts continue to conduct in-depth analysis of all Duqu components, and are finding more evidence of similarities between Duqu and Stuxnet. The highest number of Duqu incidents have been recorded in Iran, with the most interesting connected to each other systems in each other network. In one of the first real infection cases, we found a completely new driver which differs from previous variants in both name and MD5.
Source: https://threatpost.com/mystery-duqu-part-two-102611/75802/