Kaspersky: Duqu Trojan uses ‘unknown programming language’

The Duqu Trojan, referred to by some as Stuxnet 2.0, was partly written using an unknown programming language. The payload DLL, which communicates exclusively with the Command and Control (C&C) server so that the worm knows what to do once it has infected a system, has code that doesn’t resemble anything seen before. While secuirty researchers have worked out what the mystery code does, they aren’t sure about the syntax.