Infosec researchers are warning users about a new, potent malware threat based on the infamous Phobos Ransomware family. The threatening tool is tracked as the MNX Ransomware and can impact a wide range of different file types - archives, databases, images, photos, audio and video files, documents and more. Victims of the threat will effectively be blocked from accessing their own data.
When the MNX Ransomware encrypts a file, it also modifies that file's original name to a significant degree. Indeed, the threat will append an identification string, an email address and a new file extension to the file names. The ID string will be generated specifically for each victim, while the email address of the hackers is 'firstname.lastname@example.org.' The file extension used by the threat is '.MNX.' Two ransom notes with instructions will be dropped on the breached devices.
The shorter ransom-demanding message will be delivered as a text file named 'info.txt.' It states that victims wishing to restore their files must contact the hackers by messaging their emails at 'email@example.com' and 'firstname.lastname@example.org.' The main ransom note is displayed via a file named 'info.hta.' It reveals that the threat actors responsible for the MNX Ransomware will only accept ransom payments made using the Bitcoin cryptocurrency. The exact price of the ransom will supposedly depend on how fast victims establish contact. According to the note, up to 5 files can be sent as part of the messages to be decrypted for free. However, the files that victims pick must have a total size of less than 4MB and should not carry any important data.
The full text of MNX Ransomware's note 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 e-mail email@example.com
Write this ID in the title of your message -
In case of no answer in 24 hours write us to this e-mail: firstname.lastname@example.org
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.
Also you can find other places to buy Bitcoins and beginners guide here:
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.'
The message contained inside the text file is:
'!!!All of your files are encrypted!!!
To decrypt them send e-mail to this address: email@example.com.
If we don't answer in 24h., send e-mail to this address: firstname.lastname@example.org'