how to open up encrypted files

A customer brought in this computer that, when it opens up to the desktop screen, the system will stop running and a message came up saying that all the files are encrypted and it gives a link to go to and for a fee the customer could have the encryption removed.  However, the link is invalid and since that system was unusable, I backed up the files, wiped the drive clean and re-installed that OS.  Now all of his files have .jthdooc at the end of each file and if I remove that extension, the file will open up but is all garbled.  
Any help on this issue would be greatly appreciated.
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noxchoConnect With a Mentor Global Support CoordinatorCommented:
The data is rubbished. Forget about it. This is a work done by a virus as correctly noted above.
GlingoConnect With a Mentor System AdministratorCommented:

This looks like the cryptowar virus, if the customer didn't have backup prior to the encryption there isn't much you can do, these files need a private key to be decrypted so without backup the datas are probably lost.
Dave HoweConnect With a Mentor Software and Hardware EngineerCommented:
The files needed for recovery will have been destroyed along with the OS - they are now beyond recovery, sorry.
beemmerAuthor Commented:
Thanks for your help.  I will tell the customer that the files are lost.
noxchoGlobal Support CoordinatorCommented:
Advise to your customer that daily or weekly backup nowadays is a must have.

Take care
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