Just months after the Transmission app became the first instance of Mac ransomware, it is back, this time, loaded with OSX/Keydnap and still fooling macOS gatekeeper.
KeRanger, the infected Mac OS X torrent client, is virtually identical to version 4 of the Linux.Encoder Trojan that has been infecting thousands of Linux servers since the beginning of 2016.
The first fully functional ransomware for Mac OS X has been seen – it comes courtesy of an infected BitTorrent program called Transmission.