Dazx Virus Ransomware (.dazx File)

Dazx Virus uses the Salsa20 encryption algorithm. This STOP/Djvu Ransomware family is one of the most popular infection!

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About Dazx Ransomware:

NameDazx Virus
File Extension.dazx
Contact[email protected], [email protected]
FamilySTOP/Djvu Ransomware
Offline ID8EM6M9LqEzIk18qaQ87WiPQ1u84RRdej5V1ovht1
Last seenMarch 16, 2023
AlgorithmSalsa20 encryption. If Dazx cannot establish a connection to crooks server before starting the encryption process, it uses the offline key. This key is the same for all victims(!), making it possible to decrypt .dazx files in the future.
RansomFrom $490 to $980 (in Bitcoins)
  1. ⮞ Can delete Volume Shadow copies to make victim’s attempts to restore data impossible;
  2. ⮞ Adds a list of domains to HOSTS file to block access to certain security-related sites;
  3. ⮞ Installs password-stealing Trojan, like Redline Stealer, Vidar Stealer, Smokeloader, Azorult and others;
DistributionThird-party downloaders, installers, peer-to-peer networks, RDP exploits, etc.,
RSA Public Key-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA1XsvYBYqrrFQAe9QOj9l I3YKXydcKqpSpI/JHJs6YR0uN6kuOa3gssxZ7CTdXx91uLdxSo2ScCIG7oNh4k+D Jbe+pdEEg/gUFhn8Z4X9JZuWEFlhREqP/QuXCj4UO0O7JgkFrabCllkxrzSKm1eZ VF/xRRd/8XT0nMBWKhPSp8Kl9tlvuK95+kpDDnITN87dS7jNMkys9Uq0McyT70iA kBuvtsYiNNrMWBkVbnUVOSISOTqUQ7imknlPwuCRjwiYo+IPRIoZFzgru1cYCm+F gezhwwU/idFEWoaXdaA17EsGjhYKfAWmbONnSpEpX8a5Q9rj9XpZ8EiwecRZJ3Pi 5wIDAQAB -----END PUBLIC KEY-----
Other variants
  • Qarj Ransomware (.qarj encrypted files)
  • Qapo Ransomware (.qapo encrypted files)
  • Qazx Ransomware (.qazx encrypted files)
  • Dazx Virus Ransomware (.dazx) File - How does it work?

    What is Dazx ransomware?

    Malware can obtain different forms, and sometimes it becomes hazardous. Dazx ransomware is just an example of the most dangerous virus currently. It does not destroy your operating or file system; instead, it makes your files inaccessible. To make its “task” easier to complete, the Dazx virus manages to prevent the use of any sort of antivirus software by its victim.

    The encryption algorithm this malware uses is Salsa20. Its strength (based on the number of possible decryption keys) is complemented by the unique key for each victim kept on the remote server. Cybercriminals control that server, and the only way to get the keys is to pay the ransom or wait until the police bust the crooks.

    It is also important to mention how you get this on your computer. All STOP/Djvu variants are usually spread through third-party websites that spread the “free” versions of some familiar programs. While hacking the license checking mechanism, which makes it possible to use without any payments, users may add malware into the program code. And only the amount of revenue from the malware distributors distinguish which virus you will get with a “free” 3DS Max or Photoshop.

    Encryption process

    The Dazx ransomware uses the Salsa20 encryption algorithm. That is not the strongest method, but it still provides an overwhelming amount of possible decryption keys. To brute force the 78-digit number of keys, you need 3.5 unvigintillion years (1*10^65), even if you use the most powerful regular PC. Quantum computers can show a bit better results, but it is still too slow to get your files back while you are alive.

    The exact algorithm of encryption is next: malware scans each folder for the files it is able to encrypt. Then, when it finds the target, it makes a copy of your file, removes the original one, encrypts the copy and leaves it instead of the removed original. Such a procedure is done to prevent the situation when you have already opened the file, so ransomware is not able to read it because of the Windows restrictions. To each encrypted copy, the virus adds the specific extension - ".dazx". Then, ransomware creates a _readme.txt file in the folder where the encrypted file is located, and goes to the next folder.

    .DAZX Files

    Such an encryption method can be exploited for file recovery. Since the original file is deleted, you may try to recover it using the file recovery tools. The less time is passed - the bigger the chance to get your files back, so hurry up!

    Another specific moment that can help you to use the files even after the encryption is the fact that Dazx ransomware encrypts only the first 150KB of each file. Hence, you can try to run a big file, such as video or music, without the encryption. Similar feature also works with other ransomware families - Dharma, Conti and Makop encrypt the same 150KB.

    Ransom note: _readme.txt

    Ransom note is the same for the whole ransomware family. In fact, it is one of the main signs of to which family the certain ransomware belongs. Here is the typical note for STOP/Djvu family:


    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.

    To get this software you need write on our e-mail:
    [email protected]

    Reserve e-mail address to contact us:
    [email protected]

    Your personal ID:

    🔗 HowToFix.Guide: How To Decrypt .dazx Files?

    Indicators of Compromise(IOC)

    File NameMD5File Size
    📜 SAMPLE.EXE4b8dcfeef9843f465a21b69037359414699904
    📜 SAMPLE.EXE477d8577e26deee4d27c6ba4ed58ab5c699904
    📜 SAMPLE.EXE9bfa578002d92bc1cd7bc041211c51ca698880
    📜 SAMPLE.EXEb71ae767f51a3ba68d2506ded6f3f2cb698880
    📜 SAMPLE.EXEe2cbbc91e097d33af688b2a8bcac9b80698880
    📜 SAMPLE.EXEf3db34d793f262a41866cf4e1d3c955c698880
    📜 SAMPLE.EXEc2e2ae02e5befcd25c49e0bb034da31d699392
    📜 SAMPLE.EXEbf677720da509dbcdafcd945238bac07698880
    📜 SAMPLE.EXEd019c37367fa8ad0825ed0b5c3a201491273856
    📜 SAMPLE.EXEc479e029d48107168ffbf6cb881df926698368