Two versions of the free Akira ransomware decryptor for Windows have been published by Avast, which advised the use of the 64-bit version due to significant system memory requirements needed for password decryption efforts, according to BleepingComputer. Avast noted that file pairs, one encrypted by Akira and another in plain text, are required by the tool in order to provide the proper decryption key.

Source: SC Magazine