Kaspersky’s Alexander Gostev has some interesting findings on Duqu, including a connection with Showtime TV’s serial killer, Dexter Morgan. Duqu’s makers have apparently been working on this malware since 2007 and have affection for fictional TV serial killer Dexter. For each victim, a separate set of attack files was created; each unique set of files used a separate control server. The attacks were conducted via e-mails with a DOC file attached; The mail-outs took place from anonymous mailboxes, probably via compromised computers.”]
Source: https://www.csoonline.com/article/2134940/duqu-meets-dexter.html