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#1 lilshorty614

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Posted 23 July 2015 - 03:48 PM

hi, my names Tina, am having trouble with my computer the main screen keeps going  blank and keeps saying my computer has an  encryption with RSA-2048 and I can't figure out how to fix it. So if anyone knows please help me


Edited by hamluis, 23 July 2015 - 04:24 PM.
Moved from Win 8 to Gen Security - Hamluis.


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#2 yu gnomi

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Posted 23 July 2015 - 04:09 PM

Maybe you have been infected with ransomware?



#3 quietman7

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Posted 23 July 2015 - 05:31 PM


Are there any file extensions appended to your files...such as .ecc, .ezz, .exx, .zzz, .xyz, .CTBL, .CTB2, .XTBL, .encrypted, .vault, .HA3, .toxcrypt or 6-7 length extension consisting of random characters?

Did you find any ransom note? These infections are created to alert victims that their data has been encrypted and demand a ransom payment. Check your documents folder for an image the malware typically uses for the background note. Check the C:\ProgramData (or C:\Documents and Settings\All Users\Application Data) for a random named .html, .txt, .png, .bmp, .url file.

These are some examples.
HELP_DECRYPT.TXT, HELP_DECRYPT.HTML, HELP_DECRYPT.URL, HELP_DECRYPT.PNG
HELP_TO_DECRYPT_YOUR_FILES.bmp, HELP_TO_DECRYPT_YOUR_FILES.txt, HELP_RESTORE_FILES.txt
HELP_TO_SAVE_FILES.txt, HELP_TO_SAVE_FILES.bmp, RECOVERY_KEY.txt
DECRYPT_INSTRUCTION.TXT, DECRYPT_INSTRUCTION.HTML, DECRYPT_INSTRUCTION.URL
About_Files

Once you have identified which particular ransomware you are dealing with, I can direct you to the appropriate discussion topic for further assistance.
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#4 lilshorty614

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Posted 25 July 2015 - 06:30 PM

Sorry took so long for me to reply and yes I did find two of them.

 

HELP_DECRYPT.PNG

HELP_DECRYPT

 

How do I fix it?



#5 quietman7

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Posted 25 July 2015 - 06:52 PM

- CryptoWall 3.0 leaves files (ransom notes) named:
HELP_DECRYPT.TXT
HELP_DECRYPT.HTML
HELP_DECRYPT.URL
HELP_DECRYPT.PNG

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 does not change extensions on a file and does not leave anything behind once it has finished encrypting and removed itself...the only evidence will be the ransom notes and registry keys. 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 discussion. 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.

Thanks
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