Kupidon Ransomware was first spotted by MalwareHunterTeam on May 9th after being uploaded to ID-Ransomware. It quickly increased distribution, and victims started streaming into the ransomware identification site. The ransomware is targeting both personal users and businesses, most likely through exposed remote desktop servers. The ransom note variants will direct users to a TOR site that contains information about what happened to a victim’s files and an email address to contact for payment instructions. The encryption key and ID are unique to your computer, so you are guaranteed to be able to return your files.
Source: https://www.bleepingcomputer.com/news/security/kupidon-is-the-latest-ransomware-targeting-your-data/