Dapo Ransomware (.dapo Files)

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

You may be interested in taking a look at our other antivirus tools:
Trojan Killer, Trojan Scanner.

About Dapo Ransomware:


NameDapo Virus
Version0667
File Extenstion.dapo
Contact[email protected], [email protected]
FamilySTOP/Djvu Ransomware
Note_readme.txt
Offline ID8EM6M9LqEzIk18qaQ87WiPQ1u84RRdej5V1ovht1
Last seenMarch 20, 2023
AlgorithmSalsa20 encryption. If Dapo 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 .dapo files in the future.
RansomFrom $490 to $980 (in Bitcoins)
Damage
  1. โฎž Can delete Volume Shadow copies to make victimโ€™s attempts to restore data impossible;
  2. โฎž Adds a list of domains to HOSTS file to block access to certain security-related sites;
  3. โฎž 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
  • Dazx Ransomware (.dazx encrypted files)
  • Qarj Ransomware (.qarj encrypted files)
  • Qapo Ransomware (.qapo encrypted files)
  • Dapo Ransomware (.dapo Files) - What is it? Keep Your Privacy Well

    Dapo ransomware is a โ€œclassicโ€ example of ransomware infection. This virus penetrates your PC, encrypts the files, and then asks you to pay money for its decryption. The average amount of ransom is $980. In addition, fraudsters threaten you that your files will be deleted or that your files will not be decrypted. The only thing that matters is that it changes many of your system settings.

    Malware alters your systemโ€™s configurations to make it weaker and prevent the early detection of virus injection. In addition, the virus blocks the Microsoft Defender (it just becomes inactive) and restricts the launch of antivirus software installation files. These changes must be reverted as soon as possible because you will also struggle to install other programs.

    Dapo ransomware encrypts your files with a robust ciphering algorithm - Salsa20. This algorithm is typical for all other STOP/Djvu ransomware family members. It is likely impossible to hack that cipher in common ways - this encryption algorithm means 1.158x10^77 (78-digit number) of possible decryption keys. Brute forcing will take more than two unvigintillion years.

    Encryption process

    The Dapo 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 - ".dapo". Then, ransomware creates a _readme.txt file in the folder where the encrypted file is located, and goes to the next folder.

    .DAPO 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 Dapo 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:

    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:
    https://we.tl/t-vbVkogQdu2
    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]

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    ๐Ÿ”— Remove Darj Virus Ransomware (+File Recovery)
    ๐Ÿ”— Remove Dazx Virus Ransomware (+File Recovery)
    ๐Ÿ”— Remove Dapo Virus Ransomware (+File Recovery)

    Indicators of Compromise(IOC)

    File NameMD5File Size
    ๐Ÿ“œ SAMPLE.EXEa6ffaf58c5eecf62f76e64c7ce96579f179712
    ๐Ÿ“œ SAMPLE.EXE35063fae0b2c07ddb96fddb698593b45698880
    ๐Ÿ“œ SAMPLE.EXEb2a6dcdbb027343c7aefda146dd888a5698880
    ๐Ÿ“œ SAMPLE.EXEfb68f80781b0f3b08a04784babde7495178688
    ๐Ÿ“œ SAMPLE.EXE20841bb163e8977252f405fdaf989ffb699392
    ๐Ÿ“œ SAMPLE.EXE2976e7fb0bf1a1acdc30b75876b8cb81178176
    ๐Ÿ“œ SAMPLE.EXE6f276afa28f3adabca87428d3c11faf7698880
    ๐Ÿ“œ SAMPLE.EXE58d0e89428159380a15d90e81449e75a177664
    ๐Ÿ“œ SAMPLE.EXEcb94a9bd2e3d9c865c4a259e37cd15d0698368
    ๐Ÿ“œ SAMPLE.EXEaa5d4e22814951b7a750f84899881d63177664