Now here’s a new hybrid nasty that does a multitude of nefarious things. A few months ago the 800-pound Dridex cyber gang moved into ransomware with Locky, and now their competitor Reveton has followed suit and is trying to muscle into the ransomware racket with an even worse criminal malware multitool.
At the moment CryptXXX spreads through the Angler Exploit Kit which infects the machine with the Bedep Trojan, which in its turn drops information stealers on the machine, and now adds professional grade encryption creating a .crypt extension to the filename. More at the KnowBe4 blog:
https://blog.knowbe4.com/scary-new-cryptxxx-ransomware-also-steals-your-bitcoins