In the comments section of the last page:

http://spritesmods.com/?art=hddhack&page=8

Poster "tr1ck5t3r" wrote at 15 Jan 2017, 15.46:

>"BadBios, BadUSB, Stuxnet, Flame, Duqu, Shamoon, are all different names given to the observations by experts of the same suite of malware that has evolved over the years."

That is the hypothesis my research into this subject also supports, although it is purely an intuitive hypothesis, not an empirical one, that is, at this point in time, I do not have concrete proof to back this intuition...

But tr1ck5t3r's comment is a very interesting comment, nonetheless...