Malware
fancyfilter
aka 0xFancyFilter
FancyFilter is a piece of code that documents code overlap between frameworks used by Regin and Equation Group.
fancyfilter, also known as 0xFancyFilter, is a Windows malware family operated by Equation Group.
Background
FancyFilter is a code artifact that highlights shared code between the toolsets attributed to Regin and the Equation Group.
Source: Malpedia (Fraunhofer FKIE).