The hacker group behind Duqu may have been working on its attack code for more than four years, new analysis of the Trojan revealed Friday.Moscow-based Kaspersky Lab published some findings today from a recent rooting through Duqu samples provided by researchers in the Sudan, saying that one driver included with the attack payload was compiled in August 2007, extending the timeline of the gang’s work.
http://www.computerworld.com/s/article/9221760/Hackers_may_have_spent_years_crafting_Duqu
http://www.networkworld.com/news/2011/111111-hackers-may-have-spent-years-253035.html