The Halloware ransomware is a new malware offered for sale in the dark web, the author that goes online with the moniker Luc1F3R is selling it for just $40. The low price has made the researchers suspicious, so they decided to investigate the case suspecting a scam. The researchers highlighted that Halloware is a working ransomware that encrypts files using a hardcoded AES-256 key and prepends the (Lucifer) string to encrypted file names.”]
Source: http://securityaffairs.co/wordpress/66284/cyber-crime/halloware-ransomware.html