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

Cerber Ransomware 4.1.5 - First Steps?


  • This topic is locked This topic is locked
1 reply to this topic

#1 BobintheBox

BobintheBox

  • Members
  • 24 posts
  • OFFLINE
  •  
  • Gender:Male
  • Local time:01:50 PM

Posted 22 November 2016 - 04:08 PM

These symptoms seem different than the other Cerber thread listed on the "How to post..." page, so I have started a new one.

 

Windows 8.1, ASUS X551M laptop.

 

The user (not me :-) clicked on a "you owe us $$$" email, not sure if it was a zip or a link. But, the result is that the desktop has been changed to low resolution and the following message is displayed in crude text:   "Your documents, photos, and other databases have been encrypted by "Cerber Ransomware 4.1.5".  "If you understand all importance of the situation then we propose that you go directly to your personal page where you will receive complete instructions....",  etc.

 

It's followed by some text with links to your "personal page"  on four different domains/servers.

 

The system seems to operate normally, at least in a basic way. I have another Admin account on the machine that wasn't in use and appears untarnished.

 

In all folders where you'd normally find documents, emails, etc, there are a couple files with the extension ".b3e3" and a readme.hta that I assume is supposed to tell you how to recover but I am not bringing up anything I don't need to at this point.

 

The user would be fine with a recovered system with data lost if it cannot be unencrypted without paying the ransom.  OTOH, if the data can be unencrypted, that would be a bonus.

 

Guide me.. what should I do first to maximize recovery of a clean system?


Edited by BobintheBox, 22 November 2016 - 04:10 PM.


BC AdBot (Login to Remove)

 


#2 quietman7

quietman7

    Bleepin' Janitor


  • Global Moderator
  • 51,954 posts
  • ONLINE
  •  
  • Gender:Male
  • Location:Virginia, USA
  • Local time:01:50 PM

Posted 22 November 2016 - 06:01 PM

...In all folders where you'd normally find documents, emails, etc, there are a couple files with the extension ".b3e3" and a readme.hta that I assume is supposed to tell you how to recover but I am not bringing up anything I don't need to at this point...

Any files that are encrypted with the newest Cerber variant will be renamed (encrypted) with 10 random characters followed by a random 4 character extension appended to the end of the encrypted data filename (i.e. 1xQHJgozZM.b71c) and leave files (ransom notes) named README.hta...see here.

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.

Unfortunately, there is still no known way to decrypt files encrypted by Cerber v2/v3 or the newer 10 random characters with a random 4 character (i.e. .b71c) extension without paying the ransom.

There is an ongoing discussion in this topic where you can post comments, ask questions and seek further assistance. Other victims have been directed there to share information, experiences and suggestions.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
.
.
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