There are some similarities in code and function between Duqu and Stuxnet, Dell SecureWorks says. But there’s little conclusive proof the two are linked, the security vendor says. Duqu Trojan was discovered earlier this month by a little-known Hungarian lab called the Laboratory of Cryptography and System Security. The main purpose of Duqu is to let attackers steal data from manufacturers of industrial control systems that can then be used to craft attacks against entities using such systems, SecureWorks said.”]
Source: https://www.csoonline.com/article/2130023/duqu–stuxnet-link-unclear.html