This week we have 2 new variants of existing ransomware, the discovery of a new ransomware being sold on the dark web, increased distribution of WildFire Locker, and the bizarre release of free decryption keys for certain variants of CryptXXX. A new version of the Unlock92 Ransomware is no longer able to be decrypted for free. The payment servers for the CryptXXX ransomware are providing free decrypted keys for those who have not paid the ransomware. The free keys are only available for certain encrypted file extensions such as CryCryp1, but some people have been able to get keys for other versions.
Source: https://www.bleepingcomputer.com/news/security/the-week-in-ransomware-july-15-2016-cryptxxx-unlock92-wildfire-locker-and-more/