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New Ransomeware with extension .atbqgye


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#1 ajazraza

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Posted 22 April 2015 - 05:58 AM

Hello All, yesterday my notebook was attacked by ransomeware, asking for US$ 100 within 90 hours. Once the message appeared, I removed the battery but the damage was done already.  It encrypted all my .doc, .jpg and txt files and added extension .atbqgye.  Most of my files are on D drive with no protection. I restored my system on 19/3/2015 assuming there is no malware but it might still exist. I installed "TORRENTUNLOCKER DE-RANSOMEWARE" but it could not recognise the encrypted files on my computer.

 

I need any of you help to decrypt files on my notebook. Thanks in advance.


Edited by hamluis, 26 April 2015 - 07:27 AM.
Moved from MRL to Gen Security - Hamluis.


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#2 quietman7

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Posted 26 April 2015 - 05:41 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.

Newer variants of 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. You may may even be able to use file recovery software such as R-Studio or Photorec to recover some of your original files.

At this time there is no fix tool and unfortunately, still no known method to retrieve the private key that can be used to decrypt your files since there is no way 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.

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

There is also an ongoing discussion in this topic: CTB Locker or DecryptAllFiles.txt Encrypting 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 topic discussion. To avoid unnecessary confusion...this topic is closed.

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