Massive malicious email campaign that stems from Necurs botnet is spreading a new ransomware at the rate of 5 million emails per hour. The new file-encrypting ransomware is very similar to the infamous Locky ransomware in many ways, but it is demanding 1.79 Bitcoins (approx $3,150) to unlock the encrypted files on an infected computer. Another massive fast-spreading ransomware campaign is targeting computers at Hospitals, Banks, Telecom and Organisations across the globe today.
Source: https://thehackernews.com/2017/05/decrypt-jaff-ransomware-files.html