MRN Ransomware Uses Complex Encrypted File Names

ransomware

MRN ransomware is the name of a newly discovered strain of file-encrypting malware. The new variant belongs to the VoidCrypt family of ransomware clones.

The new ransomware works like most other strains do - it encrypts files on the target system and leaves their contents scrambled and useless. Once MRN encrypts a file, it appends a complex, multi-part extension that contains the victim ID string, the contact email used by the ransomware author and the ".MRN" extension. This will turn a file named "document.pdf" into "document.pdf.(victim ID)(Virus_monster@tutanota.com).MRN".

The ransomware will affect a lot of popular extensions including documents, media files, archives and databases.

The ransom note is deposited inside a file named "unlock-info.txt". The full contents of the ransom note go as follows:

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 e-mail; Virus_monster@tutanota.com

Write this ID in the title of your message : -

In case of no answer in 24 hours write us to theese e-mails: Unlocker_support at protonmail dcom

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.

July 18, 2022