Grt Ransomware

ransomware

The Grt ransomware is a newly discovered strain of file-encrypting malware. The ransomware belongs to the broader family of Phobos ransomware clones, sharing code similarities with them.

Grt will encrypt files on the victim system, affecting most non-essential files including documents, media files, archives and databases. Once encrypted, files receive a multi-part new extension.

The ransomware appends the victim's ID string, the contact mail used by the ransomware operators and the ".grt" string. This means that a file originally called "document.txt" will transform into "document.txt.id[alphanumeric string].[ghost@mm.st].grt.

The ransom demand is displayed in a pop-up window containing the following text:

'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 ghost at mm dot st

Write this ID in the title of your message -

In case of no answer in 24 hours write us to this e-mail:ghost at 2-mail dot com

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 tool that will decrypt all your files.

Free decryption as guarantee

Before paying you can send us up to 5 files for free decryption. The total size of files must be less than 4Mb (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.'

There is also a plain text file created, named "info.txt" that contains a shorter version of the same message, only listing the contact emails used by the malware operators.

By Zaib
June 21, 2022
June 21, 2022