A new ransomware called JNEC.a spreads through an exploit for the recently reported code ACE ACE vulnerability in WinRAR. After encrypting a computer, it will generate a Gmail address that victims need to create in order to receive the file decryption key once they pay the ransom. The ransom note that the malware drops on an infected computer is available in the ransom note. The price for the key is 0.05 bitcoins (about $200). The interesting part is that the. malware author chose an unusual method to deliver the malware.
Source: https://www.bleepingcomputer.com/news/security/jneca-ransomware-spread-by-winrar-ace-exploit/