Hungarian research facility that helped discover Duqu, the much-blogged about Trojan, has now released an open-source toolkit that can be used to help detect traces and instances of the worm. The Laboratory of Cryptography and System Security (CrySys) at the Budapest University of Technology and Economics developed the Duqu Detector Toolkit v1.01 to be used on computers and networks where the malware may have already been removed from the system. Duqu is a cousin of the Stuxnet worm that infected uranium enrichment facilities in Iran, famously had a hard-coded 36 day lifespan.
Source: https://threatpost.com/new-toolkit-able-track-and-trace-duqu-worm-111011/75879/