Guer Ransomware

The Guer Ransomware has been determined to be a variant belonging to the infamous STOP/Djvu Ransomware family. As such, the threat doesn't display much in terms of meaningful improvements or modifications, compared to the rest of the variants from the STOP/Djvu Ransomware family but that in no way means that it should be underestimated. Systems infected by the Guer Ransomware will be subjected to an encryption routine involving an uncrackable cryptographic algorithm.

In practice, this would lead to nearly all of the files stored on the compromised device being rendered both inaccessible and unusable. Users will be locked out of their own private or business-related documents, archives, databases, photos, images, videos, etc. As part of the encryption process, the Guer Ransomware marks each locked file by modifying its original filename. The threat appends '.guer' as a new file extension. The ransom note will then be delivered to the system in the form of a text file named '_readme.txt.'

Hackers' Demands

The note of the threat follows the same script observed in other variants of the same family. It states that to obtain the decryption key needed to restore the data, affected users will have to transfer the sum of $980 to the hackers. However, if victims reach out and initiate contact within the first 72 hours following the ransomware infection, they are promised that the price will be slashed in half to $490. Two emails are mentioned in the note, as ways to reach the hackers. The main address is 'manager@mailtemp.ch' while 'managerhelper@airmail.cc' serves as a reserve one. As part of the email, a single encrypted file can be attached and sent to the cybercriminals. Then, it will supposedly be decrypted for free and returned.

The full text of the note delivered by Guer Ransomware is:

'ATTENTION!

Don't worry, you can return all your files!
All your files like pictures, databases, documents and other important are encrypted with strongest encryption and unique key.
The only method of recovering files is to purchase decrypt tool and unique key for you.
This software will decrypt all your encrypted files.
What guarantees you have?
You can send one of your encrypted file from your PC and we decrypt it for free.
But we can decrypt only 1 file for free. File must not contain valuable information.
You can get and look video overview decrypt tool:
hxxps://we.tl/t-rbzFCkr9sY
Price of private key and decrypt software is $980.
Discount 50% available if you contact us first 72 hours, that's price for you is $490.
Please note that you'll never restore your data without payment.
Check your e-mail "Spam" or "Junk" folder if you don't get answer more than 6 hours.

To get this software you need write on our e-mail:
manager@mailtemp.ch

Reserve e-mail address to contact us:
managerhelper@airmail.cc

Your personal ID:'