Security experts from Emsisoft spotted a new strain of ransomware dubbed Spora that implements a singular extortion mechanism. The Spora ransomware implements a unique pricing model to determine how much a victim has to pay. The attack vector is the email, victims receive messages with fake invoices as attachments as attachments. The malware uses both RSA and AES to encrypt files stored on both local files and network shares and doesnt append an extension to them. The encryption key management is quite complex as explained in the post published by the security firm.”]
Source: https://securityaffairs.co/wordpress/55260/malware/spora-ransomware.html