Jump to content


 


Register a free account to unlock additional features at BleepingComputer.com
Welcome to BleepingComputer, a free community where people like yourself come together to discuss and learn how to use their computers. Using the site is easy and fun. As a guest, you can browse and view the various discussions in the forums, but can not create a new topic or reply to an existing one unless you are logged in. Other benefits of registering an account are subscribing to topics and forums, creating a blog, and having no ads shown anywhere on the site.


Click here to Register a free account now! or read our Welcome Guide to learn how to use this site.

Photo

CRYPTOLOCKER DECRYPTION ON MEMORY CARD HELP!!!! WILLING TO PAY!!


  • This topic is locked This topic is locked
3 replies to this topic

#1 Paradox Unlimited

Paradox Unlimited

  • Banned
  • 42 posts
  • OFFLINE
  •  
  • Local time:10:35 PM

Posted 22 July 2015 - 03:28 PM

I have a memory card that has a file of images blocked with CRYPTO BLOCKER. The files were never on the hard drive, only the memory card. Three computers I have put the memory card into register close to 900MB of data. This seems like too much data for the virus to have removed all the files from the card. Is there anyone who has had REAL success in decrypting these CRYPTO BLOCKER files?? Why is there so much data still reading on the card if the files are gone!?! Are there any memory card data recovery programs available? I am willing to pay a certain amount of money to someone who can demonstrate success in opening these files……….…..Mod Edit:  Removed email address, protection from spambots - Hamluis.


Edited by hamluis, 22 July 2015 - 04:50 PM.
Moved from Intrroductions to Gen Security - Hamluis.


BC AdBot (Login to Remove)

 


#2 quietman7

quietman7

    Bleepin' Janitor


  • Global Moderator
  • 51,754 posts
  • ONLINE
  •  
  • Gender:Male
  • Location:Virginia, USA
  • Local time:11:35 PM

Posted 22 July 2015 - 05:15 PM


The original Cryptolocker infection does not exist anymore and hasn't for over a year. Any references to CryptoLocker and retrieving keys for it will not work anymore. There are several copycat and fake ransomware variants which use the CryptoLocker name but those infections are not the same.

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
.
.
Windows Insider MVP 2017-2018
Microsoft MVP Reconnect 2016
Microsoft MVP Consumer Security 2007-2015 kO7xOZh.gif
Member of UNITE, Unified Network of Instructors and Trusted Eliminators

If I have been helpful & you'd like to consider a donation, click 38WxTfO.gif

#3 Paradox Unlimited

Paradox Unlimited
  • Topic Starter

  • Banned
  • 42 posts
  • OFFLINE
  •  
  • Local time:10:35 PM

Posted 23 July 2015 - 02:23 PM

Thanks for your reply.
Yes I get the black screen with the CTB BLOCKER and I have a KEY.
I have been to the Tor sight and have seen the Bit coin buyer which I refuse to use. Here is an exaqmple of what the files have been encrypted into...

 

 

IMG_8388.JPG.obxyyxg                     ....OBXYYXG FILE

 

 

This virus seems to have been very sneaky. I find it hard to believe that it entered my system just in the instant I was looking at this card, so it could suddenly enxrypt my data. And why just the card???

Should I just pay this ransom and get my bleep back???
Is it that easy?
Thank you for your time and I would apreciate any additional ideas or info u could provide. Im willing to try anything once. I have a list of memory card recovery programs im going to try.
I just dont know who ecactly should even be lookinf at this.
Its amost 900MB.........I refuse to believe that all of my images are locked forever.



#4 quietman7

quietman7

    Bleepin' Janitor


  • Global Moderator
  • 51,754 posts
  • ONLINE
  •  
  • Gender:Male
  • Location:Virginia, USA
  • Local time:11:35 PM

Posted 23 July 2015 - 05:29 PM


The newest variants of CTB Locker typically appends encrypted data files with a 6-7 length extension consisting of random characters. This extension is believed to be generated as a result of some type of algorithm involved at the time of the initial infection. The newer variants also do not always leave a ransom note if the malware fails to change the background, like it generally does. Compounding matters, the newer CTB-Locker infection has sometimes been seen in combination with KEYHolder, Torrent Locker (fake Cryptolocker) or Cryptowall ransomware. If you were double-encrypted, there will be different named ransom notes throughout your computer.

A repository of all current knowledge regarding this infection is provided by Grinler (aka Lawrence Abrams), in this topic: CTB Locker and Critroni Ransomware Information Guide and FAQ

Unfortunately there is no fix tool and no known method to retrieve the private key that can be used to decrypt your files without paying the ransom. With dual infections, that means paying both ransoms. Brute forcing the decryption key is not a realistic option.

CTB Locker will attempt to delete all Shadow Volume Copies when you first start any executable 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. You may may even be able to use file recovery software such as R-Studio or Photorec to recover some of your original files.

There is also an ongoing discussion in this topic: CTB Locker Ransomware 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 support 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
.
.
Windows Insider MVP 2017-2018
Microsoft MVP Reconnect 2016
Microsoft MVP Consumer Security 2007-2015 kO7xOZh.gif
Member of UNITE, Unified Network of Instructors and Trusted Eliminators

If I have been helpful & you'd like to consider a donation, click 38WxTfO.gif




0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users