A new Mac ransomware has been discovered in the popular Transmission Bittorrent client, the news was posted on the Transmission website asking users to upgrade from version 2.90 of the software to 2.91.
This is the first Ransomware that has been found on Apple’s OS X platform, you can see what Transmission posted on their website below.
Everyone running 2.90 on OS X should immediately upgrade to 2.91 or delete their copy of 2.90, as they may have downloaded a malware-infected file.
Using “Activity Monitor” preinstalled in OS X, check whether any process named “kernel_service” is running. If so, double check the process, choose the “Open Files and Ports” and check whether there is a file name like “/Users//Library/kernel_service”. If so, the process is KeRanger’s main process. We suggest terminating it with “Quit -> Force Quit”
Ransomware will lock or encrypt your hard drive until you pay a ransom to have it unencrypted, this is the first of this type on the Mac. You can find out details on how to check your Mac for the malware over at Paloalto Networks.
Source Mac Rumors, Techmeme