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Files encrypted. No system restore points available.


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4 replies to this topic

#1 vr6ownzu

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Posted 08 September 2015 - 07:48 PM

Help.  My files were somehow encrypted.  I ran malwarebytes and it cleaned up the system, but I am still unable to access my files.  I attempted to run a system restore, but it's saying no points are available.  What can I do? 


Edited by computerxpds, 08 September 2015 - 08:00 PM.
Moved to Gen. Sec. from Windows 7 forum


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#2 BenjaminGordonT

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Posted 08 September 2015 - 09:04 PM

If your files were somehow encrypted it's very likely you have (or had) some kind of ransomware... But without knowing which kind it is or was I can't know how to help as some have decryptor tools and some don't... Suggestion to move this to "Am I infected"​​



#3 quietman7

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Posted 09 September 2015 - 11:30 AM


Are there any file extensions appended to your files...such as .ecc, .ezz, .exx, .zzz, .xyz, .aaa, .abc, .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, DecryptAllFiles.txt
DECRYPT_INSTRUCTION.TXT, DECRYPT_INSTRUCTION.HTML, DECRYPT_INSTRUCTION.URL
HOW_TO_DECRYPT_FILES.txt, How_To_Recover_Files.txt, About_Files, encryptor_raas_readme_liesmich.txt
RECOVERY_FILES.html, RECOVERY_FILES.txt, Recovery_File_*****.html, Recovery_File_*****.txt
restore_files_*****.html, restore_files_*****.txt (where ***** are random characters)

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 vr6ownzu

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Posted 09 September 2015 - 04:42 PM

Yes.  The files all have a .abc extension.  
 
Below is the text from the restore_files_dpcxe.txt document.  There is also a matching .html document.  
 
 
 
 
 !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
What happened to your files ?
All of your files were protected by a strong encryption with RSA-2048.
More information about the encryption keys using RSA-2048 can be found here: http://en.wikipedia.org/wiki/RSA_(cryptosystem)
 
What does this mean ?
This means that the structure and data within your files have been irrevocably changed, you will not be able to work with them, read them or see them,
it is the same thing as losing them forever, but with our help, you can restore them.
 
How did this happen ?
Especially for you, on our server was generated the secret key pair RSA-2048 - public and private.
All your files were encrypted with the public key, which has been transferred to your computer via the Internet.
Decrypting of your files is only possible with the help of the private key and decrypt program, which is on our secret server.
 
What do I do ?
Alas, if you do not take the necessary measures for the specified time then the conditions for obtaining the private key will be changed.
If you really value your data, then we suggest you do not waste valuable time searching for other solutions because they do not exist.
 
For more specific instructions, please visit your personal home page, there are a few different addresses pointing to your page below:
1. http://rtldkdh6.kghw88gh3eu.net/419C027F764926
2. http://jsdf2wevw2.wrt23wqw34.net/419C027F764926
3. https://7vhbukzxypxh3xfy.onion.to/419C027F764926 
 
If for some reasons the addresses are not available, follow these steps:
1. Download and install tor-browser: http://www.torproject.org/projects/torbrowser.html.en 
2. After a successful installation, run the browser and wait for initialization.
3. Type in the address bar: 7vhbukzxypxh3xfy.onion/419C027F764926 
4. Follow the instructions on the site.
 
IMPORTANT INFORMATION:
Your personal pages:
http://rtldkdh6.kghw88gh3eu.net/419C027F764926
http://jsdf2wevw2.wrt23wqw34.net/419C027F764926 
https://7vhbukzxypxh3xfy.onion.to/419C027F764926
Your personal page (using TOR): 7vhbukzxypxh3xfy.onion/419C027F764926 
Your personal identification number (if you open the site (or TOR 's) directly): 419C027F764926

I have not visited any of the linked sites to obtain more information. I immediately ran malwarebytes and cleared as much as I could to prevent further issues.

Other than the files being encrypted, the computer seems to be working normally. I did have an issue with Firefox, but I deleted the browser. It would send me to a different link than what I would click on. It has not affected Chrome.

Thanks for your help.

#5 quietman7

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Posted 09 September 2015 - 04:47 PM

Any files that are encrypted with the newer unnamed variant of TeslaCrypt will have the .exx, .xyz, .zzz, .aaa or .abc extension appended to the end of the filename. The .aaa/.abc variant drops files with names like Recovery_File_*****.html, Recovery_File_*****.txt, restore_files_*****.html, restore_files_*****.txt files, (where ***** are random characters) and pretends to be CryptoWall 3.0.

A repository of all current knowledge regarding TeslaCrypt, Alpha Crypt and newer variants is provided by Grinler (aka Lawrence Abrams), in this topic: TeslaCrypt and Alpha Crypt Ransomware Information Guide and FAQ

Information about and support for decrypting files affected by Alpha Crypt & TeslaCrypt ransomware can be found in this topic:
TeslaDecoder released to decrypt .EXX, .EZZ, .ECC files encrypted by TeslaCrypt

There is an ongoing discussion in this topic: New TeslaCrypt version that uses the .EXX extension Support & Discussion.

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 that 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
The BC Staff
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