ZXCV Ransomware

The ZXCV Ransomware is yet another potent crypto locker threat that belongs to the Dharma Ransomware family. The threat doesn't deviant from the typical Dharma behavior in any significant way, apart from the unique extension used for the encrypted files and the email address of the hackers behind it.

Once inside the user's computer, the ZXCV Ransomware will proceed to encrypt nearly all of the files stored on it. As a result, the victims will find out that they are now locked from accessing their personal or business-related files suddenly, which could have serious consequences. Every compromised file will have its name changed to include a random string of characters representing the ID assigned to the victim, one of the hackers' email addresses, 'decrypt@null.net' in this case, and .zxcv' as a new extension. The cybercriminals deliver their instructions as a text message and as a pop-up window.

The text file is named 'FILES ENCRYPTED.txt,' and as is typical for Dharma Ransomware variants, contains very little in terms of useful information besides providing the two emails of the hackers. The first one is 'decrypt@null.net' while the second is 'kmbvru5d1@airmail.cc.' For more details, victims have to turn to the pop-up window. There the criminals specify that the second email should be used if there is no response within 24 hours. They also state that the payment must be made in Bitcoin while the exact amount will depend on the time it takes the victims to establish communication. The hackers allow for a single file that doesn't exceed 1MB to be sent for free decryption.

The 'FILES ENCRYPTED.txt' files contain the following message:

'all your data has been locked us.

You want to return?

Write email decrypt@null.net or kmbvru5d1@airmail.cc.' 

The full set of instructions in the pop-up window is:

'All your files have been encrypted!

All your files have been encrypted due to a security problem with your PC. If you want to restore them, write us to the email decrypt@null.net

Write this ID in the title of your message -

In case of no answer in 24 hours write us to theese emails:kmbvru5d1@airmail.cc

You have to pay for decryption in Bitcoins. The price depends on how fast you write to us. After payment we will send you the decryption tool that will decrypt all your files.

Free decryption as guarantee

Before paying you can send us up to 1 file for free decryption. The total size of files must be less than 1Mb (non archived), and files should not contain valuable information. (databases,backups, large excel sheets, etc.)

How to obtain Bitcoins

The easiest way to buy bitcoins is LocalBitcoins site. You have to register, click 'Buy bitcoins', and select the seller by payment method and price.

hxxps://localbitcoins.com/buy_bitcoins

Also you can find other places to buy Bitcoins and beginners guide here:

hxxp://www.coindesk.com/information/how-can-i-buy-bitcoins/

Attention!

Do not rename encrypted files.

Do not try to decrypt your data using third party software, it may cause permanent data loss.

Decryption of your files with the help of third parties may cause increased price (they add their fee to our) or you can become a victim of a scam.'