Cryptographic viruses have been around for years. They have been largely unsuccessful in using the encryption, until last fall when CryptoLocker hit the Internet. Now we have seen the second of many to come because these new strains are using the encryption very successfully. The only true defense against these ransomware viruses is with backup. If you have a good backup you will not have to pay the hundreds of dollars os ransom money demanded by the criminals to return your files. We recommend Carbonite at Geeks On Call®. Read more at The Register.
ES- Owner/operator of Computer Troubleshooters MB