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7 replies to this topic

#1 qweaz

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Posted 15 March 2017 - 10:53 PM

Hello everyone
I have a big problem that all the files on your computer has become encrypted, such as  yNTMukQYkE.af28
You reinstall Windows


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#2 quietman7

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Posted 20 March 2017 - 06:04 AM

There are several different ransomware infections which append a random 4, 5, 6, 7, or 8 character extension to the end of all affected filenames (i.e. CTB-Locker, Crypt0L0cker, Maktub Locker, Alma Locker, Princess Locker, Locked-In, Mischa, Goldeneye, Cerber v4x/v5x and some Xorist variants).

Any files that are encrypted with Cerber v4x/v5x will be renamed (encrypted) with 10 random characters followed by a random 4 character hexadecimal extension appended to the end of the encrypted data filename (i.e. 1xQHJgozZM.b71c) and leave files (ransom notes) named README.hta, README.html, _HEJDDP_README_.hta, _HELP_HELP_HELP_<random hexadecimal>.hta (i.e _5M6C2B8.hta) as explained here. Any files that are encrypted with Cerber v5x will also include a few new changes as explained here.

The best way to identify the different ransomwares that use "random character extensions" is the ransom note (including it's name), samples of the encrypted files, the malware file itself or at least information related to the email address used by the cyber-criminals to request payment.

You can submit samples of encrypted files and ransom notes to ID Ransomware for assistance with identification and confirmation. This is a service that helps identify what ransomware may have encrypted your files and then attempts to direct you to an appropriate support topic where you can seek further assistance. Uploading both encrypted files and ransom notes together provides a more positive match and helps to avoid false detections.
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#3 qweaz

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Posted 20 March 2017 - 03:25 PM

thank you very much for the respond
I will upload a zip file containing a sample containing images

 

I could not upload the file to the forum so it was uploaded on this link

https://www.datafilehost.com/d/ea26c4c8



#4 quietman7

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Posted 20 March 2017 - 05:39 PM

Did you submit any samples of encrypted files and ransom notes to ID Ransomware for assistance with identification and confirmation?

Doing that is usually faster to determine what you are dealing with.
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#5 qweaz

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Posted 20 March 2017 - 08:49 PM

no



#6 quietman7

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Posted 20 March 2017 - 08:53 PM

Then please do and let us know the results.
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#7 qweaz

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Posted 20 March 2017 - 09:14 PM

Cerber 4.0 / 5.0
 This ransomware has no known way of decrypting data at this time.

It is recommended to backup your encrypted files, and hope for a solution in the future.

Identified by

 

Click here for more information about Cerber 4.0 / 5.0


#8 quietman7

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Posted 20 March 2017 - 09:19 PM

As I suspected, you are dealing with a newer variant of Cerber Ransomware.

Trend Micro released a Ransomware File Decryptor for victims of earlier Cerber v1 infections but it has limitations. Unfortunately, there is still no known way (free solution) (free solution) to decrypt files encrypted by Cerber v2/v3 or newer v4x/v5x variants which use 10 random characters with a random 4 character hexadecimal extension (i.e. .b71c) without paying the ransom.

There is an ongoing discussion in this topic victims you can post comments, ask questions and seek further assistance. Other victims have been directed there to share information, experiences and suggestions.When or if a solution is found, that information will be provided in that support topic and you will receive notification if subscribed to it. In addition, a news article most likely will be posted on the BleepingComputer front page.

Rather than have everyone with individual topics, it would be best (and more manageable for staff) if you posted any more questions, comments or requests for assistance in the above support topic discussion...it includes experiences by experts, a variety of IT consultants, end users and company reps who have been affected by ransomware infections. To avoid unnecessary confusion, this topic is closed.

Thanks
The BC Staff
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