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CryptoDefense Cryptodefense On CLient Machine


A client has been infected with Cryptolocker (Cryptodefense) so some of their documents are encrypted.

Is there still a functioning solution other than paying these guys.

Alternately is there a way to unencrypt the files.
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2 Solutions
No. :-(

[Without a backup image, no way out.]
Tony GiangrecoCommented:
If you are referring to CryptoLocker, it is not a virus or spyware. It's an encryption a hacker places on all your documents  local and network that encrypts your documents.

There are multiple lines of defense:

1. Installing a good firewall like Cisco, Sonicwall or Barracuda that includes content filtering to inspect packets as they are received and drop suspicious and known file types before they reach your network.

2. There are also some software firewalls that help but we believe a stand alone hardware firewall is best.

3. Installing a web based anti spam service that inspects email before it's received like the content filtering above. We use GFI Mail Essentials Online for this service.

4. Educate your users not to open email that looks irregular and from someone they do not expect. This is just plain common sense feature that some people don't use.

If you get hit with CryptoLocker, there are two solutions:

1. Restore from a backup to restore your registry back so it’s clean and restore your documents in unencrypted format.
2. Pay the ransom and hope they unlock your files.

Comodo AntiVirus says if you are running their anti virus and get hit with CryptoLocker, they "offer customers up to a $5,000 limited warranty against infection."


Hope this helps.
Tony GiangrecoCommented:
Have we provided the information you needed? There is no un-encryption solution.
mavcomAuthor Commented:
Thank you.
Tony GiangrecoCommented:
Glad I could provide information. Hope it helps!
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