Nury Ransomware (.nury Files)

Nury 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 Nury Ransomware:


NameNury Virus
Version0589
File Extenstion.nury
Contact[email protected], [email protected]
FamilySTOP/Djvu Ransomware
Note_readme.txt
Offline IDKFBzXY7hTnWvKHIgFKUOR1MsE6RDJJwQPj1ozPt1
Last seenOctober 24, 2022
AlgorithmSalsa20 encryption. If Nury 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 .nury 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----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAz1rm5ao2VYErKeJi6JV4 Yl+Blgu7z7Kkn7g8C00PIN5IjmLs8JwLzTLT7VJaJ4OlQW7mtjeeunUByrkKkXg+ a1sutT5YTsyDoNt+hq74aFkE2qZhh6mdvCkOQKFpqfgIT5LdcH9pKVLoqtG5Ycjx /JKnwc5HfvHAgidiMR6C+LONPb5j6D3Tm2mJWLLSwq0WRNsEF+ctgCytUZvNi5iy wH7PhFS/rZXanMgAncNcI/+DIn7tNEFqt3JqQG9U8KWke5SGtcbjDkZX6/TDOvQC oY1JEsK/Ex1yUqHgWHT3pVcVPfakAWTMxaxXBiB+3upkeY/S2mJ7MDbRrjmf5RNh AwIDAQAB -----END PUBLIC KEY-----
Other variants
  • Nuis Ransomware (.nuis encrypted files)
  • Tury Ransomware (.tury encrypted files)
  • Tuow Ransomware (.tuow encrypted files)
  • Nury Ransomware (.nury Files) - What is it? Keep Your Privacy Well

    The Nury virus can correctly be described as ransomware. This virus encrypts your files and then asks you for a ransom payment to get your files back. Nury belongs to the STOP/Djvu ransomware family - one of the most active families nowadays. The favorite victims of this criminal group are individuals who download the programs from third-party websites.

    In the process of Nury malware attack, your files are encrypted with the Salsa20 algorithm. This cipher means about 2^256 decryption keys - a 78-digit number. Unfortunately, it is likely impossible to get the key with brute force or another popular password-hacking method.

    It is essential to mention how Nury malware is distributed. It was said that the primary source for the whole STOP/Djvu family is dubious sites spreading โ€œhackedโ€ software and untrustworthy tools. Nury is not an exclusion. This ransomware is usually embedded into a spread program as โ€œfreeโ€, even though it must be purchased on the official site. Users who crack the license checking in these programs (that allows them to use it for free) add malware in the โ€œfinal productโ€ because virus developers pay them. The same thing is about untrustworthy tools - cheat engines, Windows activators, or keygens. Since these programs usually require you to disable the antivirus tool, you will likely detect something wrong when it is too late.

    Encryption process

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

    .NURY 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 Nury 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-IfeNgr671e
    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]

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    Indicators of Compromise(IOC)

    File NameMD5File Size
    ๐Ÿ“œ SAMPLE.EXEdd9432e6d4227af4a96666ce97d540651273856
    ๐Ÿ“œ SAMPLE.EXE9b4a5068c39115431cbc9e0cbd897297266240
    ๐Ÿ“œ SAMPLE.EXE02c0ff04466eaf35a65372d9dbd23a21274944
    ๐Ÿ“œ SAMPLE.EXE34511bf7cdf57447a6883503d5d7f8f6222208
    ๐Ÿ“œ SAMPLE.EXE458404bb56ffd183a1c631e3a26de6ca222208
    ๐Ÿ“œ SAMPLE.EXE3371a781a6843b67bbe55405972021421273856
    ๐Ÿ“œ SAMPLE.EXEb71c28a6e77add43758eda3512216036222720
    ๐Ÿ“œ SAMPLE.EXEa77616bcdbb219e2924e0af7eb98e87c145587
    ๐Ÿ“œ SAMPLE.EXEa7fe2f1a3f55f7cd4e0804b63912267a1273856
    ๐Ÿ“œ SAMPLE.EXE6348b8917e883280a3ad124a3465a444224768