Mac users beware: an infamous and sophisticated Windows malware has made its way to macOS, and it could infect your machine via a common outlet.

The backdoor malware — known as Snake, Turla, or Uroburos — has been infecting Windows machines since at least 2008. Three years ago, it was ported to Linux systems, and now, it has just been adapted to infect Mac users, according to a MalwareBytes blog post. A highly sophisticated malware, it’s thought to have been created by the Russian government, and according to security firm Fox-IT, it’s been used to attack high-profile targets such as large corporations, as well as military and government institutions.