This e-threat bears a striking resemblance to the already notorious Stuxnet worm that made the headlines in late 2010. The core component of the Duqu malware is a rootkit driver a file that protects other malware against the defense mechanisms of the operating system or even of the antivirus itself. The code of the rootkit is extremely similar to the one we identified in StuxNET more than a year ago, says Malware City. We believe the team behind Duqu incident are not related to the ones that released the worm in 2010.”]