Moved to Malware Discussion > Corporate User Assistance > for better Assistance.
See this guide on getting rid of it: How to remove CryptoWall 4.0 ransomware (Free Guide)
or this one for the previous 'version' : Remove CryptoWall 3.0 virus (Files Encrypted Ransomware)
I doubt you can recover files though as the first thing to do when there's the slightest hint of trouble is power completely off without touching any keys or mouse.
(Those clicks and movements are what activate ransomware usually)
Then reboot into Safe Mode and use System Restore to go back to a previous state. If successful, temporarily disable System Restore to delete the infected restore point.
NEVER click on links or open attachments in strange emails.
See last link below, written for consumers, it may help also in the Enterprise:
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Post #2 above amended to include more explanatory instructions. (Already included in the link provided but thought it better to explain more fully in the post).