Today a new Locky Ransomware variant was discovered by Stormshield malware analyst coldshell that switches to the .ykcol extension for encrypted files. It is important to note that if you are infected with this ransomware, you are not infected with the Ykcol Ransomware, but rather Locky. […]

from https://www.bleepingcomputer.com/news/security/locky-ransomware-switches-to-the-ykcol-extension-for-encrypted-files/