Kaspersky Q and A for Equation Group multiple malware program, in use
   early
   as 1996. NSA implicated.
   [1]https://securelist.com/files/2015/02/Equation_group_questions_and_an
   swers.pdf
   Dan Goodin: How omnipotent hackers tied to NSA hid for 14 yearsand were
   found at last
   [2]http://ars.to/1EdOXWo

References

   1. https://t.co/bByx6d25YF
   2. http://t.co/0n1D05GOFN