Snake, also known as Turla and Uroburos, has been around and infecting Windows systems since at least 2008. It is thought to be Russian governmental malware and on Windows is highly-sophisticated. Snake was found in a file named Install Adobe Flash Playerapp.zip. The app is signed by a certificate issued to an Addy Symonds rather than Adobe, but the average user is never going to know that as long as its signed, Apple’s Gatekeeper system will allow it, when set to its default settings.”]
Source: https://blog.malwarebytes.com/threat-analysis/2017/05/snake-malware-ported-windows-mac/