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Computer infected by Cryptowall


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#1 mSonic

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Posted 13 August 2015 - 05:37 AM

Hi,

My name is Mark.

Computer in my work was infected by Cryptowall. It's happened this monday. We lost many very important files including files in shared folders from local network.
Can you help me somehow ?

Operating system on infected computer is Windows 7 Professional 32bit.
Other computers work on Windows XP Home or Professional.



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#2 quietman7

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Posted 13 August 2015 - 06:46 AM

:welcome: to Bleeping Computer.

A repository of all current knowledge regarding CryptoWall, CryptoWall 2.0 & CryptoWall 3.0 is provided by Grinler (aka Lawrence Abrams), in this topic: CryptoWall and DECRYPT_INSTRUCTION Ransomware Information Guide and FAQ

Cryptowall typically deletes (though not always) all Shadow Volume Copies with vssadmin.exe so that you cannot restore your files via System Restore or using a program like Shadow Explorer...but it never hurts to try in case the infection did not do what it was supposed to do. Another possible options is to try file recovery software such as R-Studio or Photorec to recover some of your original files but there is no guarantee that will work.

At this time there is no fix tool and Decryption of any CryptoWall Files...is impossible since there is no way to retrieve the private key that can be used to decrypt your files without paying the ransom. The only other alternative is to save your data as is and wait for possible updates...meaning, what seems like an impossibility at the moment (decryption of your data) there is always hope someday there may be a breakthrough or possible solution so save the encrypted data and wait until that time.

There are also ongoing discussions in these topics:Rather than have everyone start individual topics, it would be best (and more manageable for staff) if you posted any questions, comments or requests for assistance in one of those topic discussions. Doing that will also ensure you receive proper assistance from our crypto malware experts since they may not see this thread. To avoid unnecessary confusion...this topic is closed.

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