Duqu trojan built by ‘old school’ programmers, Kaspersky says

Kaspersky Labs says Duqu’s command and control (C&C) component appears to have been developed using Object Oriented C (OO C) The C&C module was written in pure C and compiled with Microsoft Visual Studio Compiler 2008 (MSVC 2008) The choice of language suggests that at least some Duqu developers started programming at a time when Assembler was their language of choice and then moved to C when it became fashionable. Duqu attracted considerable attention because of similarities to Stuxnet virus that disrupted operations at Iran’s Natanz nuclear facility in 2010.”]

Source: https://www.csoonline.com/article/2131297/duqu-trojan-built-by–old-school–programmers–kaspersky-says.html