Sodin, Sodinokibi, REvil or BlueBackground Ransomware encrypts user data with AES, and then requires a ransom at 0.475–0.950 BTC to return files. It exploits a zero-day, CVE-2018-8453, was previously abused by an APT, and was patched in the Oct 18 Patch Tuesday.
A newer Version is available for REvil Ransomware
Sodinokibi Ransomware Signatures
Sodinokibi Ransomware Download