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## KeRanger

[](https://www.paloaltonetworks.com/blog/2016/03/new-os-x-ransomware-keranger-infected-transmission-bittorrent-client-installer/)  
[New OS X Ransomware KeRanger Infected Transmission BitTorrent Client Installer
\------------------------------------------------------------------------------](https://www.paloaltonetworks.com/blog/2016/03/new-os-x-ransomware-keranger-infected-transmission-bittorrent-client-installer/)

On March 4, we detected that the Transmission BitTorrent client installer for OS X was infected with ransomware, just a few hours after installers were initially posted. We have named this Ransomware "KeRanger." The only previous ransomware for OS X we are aware of is FileCoder, discovered by Kaspersky Lab in 2014. As FileCoder was incomplete at the time of its discovery, we believe KeRanger is the first fully functional ransomware seen on the OS X platform....  
[Unit 42](https://unit42.paloaltonetworks.com)  
Mar 06, 2016  
By [Claud Xiao](https://www.paloaltonetworks.com/blog/author/claud-xiao/?ts=markdown "Posts by Claud Xiao") and [Jin Chen](https://www.paloaltonetworks.com/blog/author/jin-chen/?ts=markdown "Posts by Jin Chen")

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