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KIOP Ransomware (.kiop File Extension)

KIOP a strain within the STOP/Djvu Ransomware family, employing the Salsa20 encryption algorithm to encrypt files on compromised systems. Victims are coerced into paying a ransom ranging from $490 to $980 in Bitcoins for the decryption key.

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

About Kiop:


NameKiop Virus
Version0682
File Extension.kiop
Contact[email protected], [email protected]
FamilySTOP/Djvu Ransomware
Note_readme.txt
Offline IDiIlWwF8bQ6n1I71JdbwrJ0LNue9L0IeEoD6KAJt1
Last seenMarch 04, 2024
AlgorithmSalsa20 encryption. If Kiop 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 .kiop 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 virus, 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----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAzE6cVneIM2Wae+KUrheZ 16aGgR/AmeXkqfH6rZCn/QCiF1/+40zsMWFOVCloErhRBltIGO3PaSEoknvmUr2t Z6gJaHYtKBs5rOdavGU4FgrWEDnawlxPtsFVmaPLBlDWlLa7/d+mQfIxa3RLdIZS xe7bVGbsjWrJposubBEsCHBWHhyb8Gi4MO3Cl2s1crbCrlLfT536T0gIluR0k1Yq X1DHpUQSgvOcEj7XQk9m8McuMzpD/6nKXINgdxAJsaEVEgUoopwOyrMMKW5QJ+6x VMmbW6TkpWWTav0q5vIvb/dBbwUCRdvvBkNnU/D13EZhAQ9awoKSAdneiJyXJcSC yQIDAQAB -----END PUBLIC KEY-----
Other variants
  • Niwm Ransomware (.niwm encrypted files)
  • Nitz Ransomware (.nitz encrypted files)
  • Nifr Ransomware (.nifr encrypted files)
  • KIOP Virus Removal Tool

    What is Kiop?

    Discovering files with the .kiop extension on your computer is a clear indicator that you've been targeted by the Kiop ransomware. This malware aims directly at your financesโ€”it encrypts your files and demands a ransom for their decryption. Before encrypting your files, it performs various modifications to your system settings to deactivate security defenses and block the execution of antivirus programs.

    The Kiop ransomware utilizes the Salsa20 encryption algorithm. Although this cipher is not the most robust form of encryption, decrypting it through conventional means remains impractical.

    The security modifications made by the Kiop virus are extensive. It deactivates Microsoft Defender and tweaks system configurations to prevent the installation of most antivirus software. Furthermore, it modifies the HOSTS file, obstructing access to websites that offer ransomware removal and file decryption advice.

    Kiop Encryption process

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

    .KIOP 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 Kiop 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.

    Kiop note:

    Ransom note is the same for the whole STOP/DJVU 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-lEbmgnjBGi
    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:
    ****************

    ๐Ÿ”— HowToFix.Guide: How To Decrypt .kiop Files?

    Indicators of Compromise(IOC)

    File NameMD5File Size
    ๐Ÿ“œ SAMPLE.EXE17cfad33f7a893472ce5f960f25229a4717824
    ๐Ÿ“œ SAMPLE.EXE3713b1c9229f68a7d9e5a796fb95c872717312
    ๐Ÿ“œ SAMPLE.EXEf5e92ea6b702f251c3da68c89d6a77a7716800
    ๐Ÿ“œ SAMPLE.EXE20d88ef897c636f7aa3ee38686a99b10717312
    ๐Ÿ“œ SAMPLE.EXEa04c891b8ffebdf58dc2338da1e79d2a716800
    ๐Ÿ“œ SAMPLE.EXE32c86d8b2b18255256884990f1a2ed54716800
    ๐Ÿ“œ SAMPLE.EXEa77df2b4c847303d2b04d492b2830058717824
    ๐Ÿ“œ SAMPLE.EXEdd408bfe936bfd1b428f199c707dc655718336
    ๐Ÿ“œ SAMPLE.EXE7a05ef99e70c9ab77644ed21b960ca1f717824
    ๐Ÿ“œ SAMPLE.EXEa321195c2e0b67bfdef06c92850db103717312