Blackmail via Encrpytion

Fingolfin

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Blackmail via Encryption

A friend has just contacted me to ask for help about a nasty blackmail trick that they've been subjected to, very similar to this:

http://www.healthitlawblog.com/tags/medicaldata-blackmail/

Upon opening a "fax" attachment containing a PDF (that unfortunately looked very similar to legitimate emails received during the course of business, so that it can't easily be ignored), his entire hard drive ( or at least all folders navigated into ) are being encrypted with "RSA-2048" encryption, and text notices installed in every folder that basically inform him that his data is being held hostage until certain URLs are visited (and possibly funds deposited) to release the data.

It's a long shot I know, but:

* anyone else dealt with this before?
* is there any recourse (could it be a confidence trick)
* should we bother to go to the "authorities"?
* should I investigate the drives in my linux machine to see what I can see? (the attack was on windows)

Thanks!
 
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And thats why you need backups of your data

Anyway, encrypting an entire drive would have taken quite an amount of time. Should have turned the machine off and rebooted into a linux distro then maybe most of the data could have been rescued

Captiain hindsight to the rescue :p

Where to go from here I have no idea, sorry
 
And thats why you need backups of your data

Anyway, encrypting an entire drive would have taken quite an amount of time. Should have turned the machine off and rebooted into a linux distro then maybe most of the data could have been rescued

Captiain hindsight to the rescue :p

Where to go from here I have no idea, sorry

Thanks for your thoughts.
Unfortunately it seems the machine was on for about 2 hrs before being turned off.
The person affected works on really massive graphics files (sometimes 6GB photoshop files for huge printouts) so there is some hope that not all files would be immediately affected, since 2TB of data I presume would take awhile to fully encrypt.
 
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