We have been studying the Duqu Trojan for two months, exploring how it emerged, where it was distributed and how it operates. Despite the large volume of data obtained, we still lack the answer to the fundamental question who is behind Duqu? In addition, there are other issues, mostly to do with the creation of the Trojan, or rather the platform used to implement Duqu as well as Stuxnet. We believe the two were simultaneous projects supported by the same team of developers. In the course of our research we have discovered new evidence which will be discussed below.”]
Source: https://securelist.com/stuxnetduqu-the-evolution-of-drivers/36462/