The Aayu Ransomware is another threatening variant belonging to the extremely prolific STOP/Djvu malware family. The threat follows the typical behavior of this malware family without any significant deviations. It targets a wide range of different file types and subjects them to data encryption. The cryptographic algorithm used in the encryption process is strong enough to make the restoration of the affected files practically impossible unless the correct encryption keys are applied. The threat marks each locked file by attaching '.aayu' to the original filename as a new extension.
The Aayu Ransomware ransom note is dropped on the breached systems as a text file named '_readme.txt.' The text of the note is almost entirely identical to the ransom-demanding messages left by other STOP/Djvu variants. The cybercriminals state that victims will have to pay a ransom of $980, but those that initiate contact within the first 72 hours will receive a 50% discount. The note provides two email addresses - 'email@example.com' and 'firstname.lastname@example.org,' that could be used as communication channels.
Of course, talking to cybercriminals and paying them any amount of money is strongly discouraged. Users could be exposed to additional privacy or security risks that could lead to even more serious consequences.
The message on the ransom note reads:
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:
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.
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