Cybercriminals have released potent new ransomware. The threat is tracked as the Miami44 Ransomware and its destructive features allow it to prevent users from accessing their own data. The Miami44 Ransomware is based on the infamous Chaos Ransomware family, uses a strong algorithm and targets different file types. All affected data will be left in an inaccessible state, and the only way to restore is to have the necessary decryption key.
Unlike most ransomware threats, Miami44 doesn't have a specific file extension to mark the encrypted files. Instead, the threat generates a different random 4-character string and appends it to the original names of the victim's files. In addition, it also will create a text file named 'README.txt' on the infected system. This file contains a ransom note with instructions from the cybercriminals.
Ransom Note's Details
Reading the message left by the attackers reveals that they will only accept ransom payments made using the Bitcoin cryptocurrency. However, the exact size of the demanded sum is not mentioned. Victims are forced to establish contact with the hackers by sending a message to the provided email address at 'firstname.lastname@example.org.' They also can attach 3 locked files that will supposedly be unlocked for free, as a demonstration that all affected data can be reverted to its original state. Users should remember that any attempted communication with cybercriminals could expose them to additional security and privacy risks.
The full text of the Miami44 Ransomware's note is:
'Oh no! Your files are encrypted!
Don't worry, you can send us ONLY 3 Encrypted files of yours and we decrypt them.
To get the Decryptor, please read the instructions below.
You must follow these steps To decrypt your files :
1) Write on our e-mail :email@example.com ( In case of no answer in 24 hours check your spam folder).
2) Obtain Bitcoin (You have to pay for decryption in Bitcoins.
After payment we will send you the tool that will decrypt all your files.)'