Mac OS X/macOS malware FruitFly has been infecting hundreds of Mac computers for more than five years. The Mac malware was initially detected earlier this year by Malwarebytes researcher Thomas Reed, and Apple quickly released security patches to address the dangerous malware. Patrick Wardle, an ex-NSA hacker and now chief security researcher at security firm Synack, discovered around 400 Mac computers infected with the newer strain of the FruitFly malware (FruitFly 2) in the wild. Wardle was able to uncover FruitFly victims after registering a backup command and control server.
Source: https://thehackernews.com/2017/07/macos-malware-fruitfly.html