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Nuksus Virus Removal Guide (+Decrypt .nuksus files)

Nuksus – General Info

Nuksus is a harmful software working as common ransomware. Michael Gillespie, the popular malware researcher, very first discovered this new name in the DJVU ransomware family.

Nuksus was developed for the sole purpose to encrypt all popular file types. Logically, as quickly as the file encryption is effectively accomplished, the users are not able to get access to them. Nuksus virus adds its own “.nuksus” to all the encrypted files. For instance, the file “price_list.xls”, as soon as modified by Nuksus, will be entitled as “price_list.xls.nuksus”. Once the file encryption is achieved, Nuksus puts its own unique text file (_readme.txt) into all the folders that store the encrypted files.

The message mentioned by text file requesting for the random os extremely comparable to the alerts provided by other ransomware threats belonging to the DJVU family. The caution essentially indicates that the data has been secured and the only solution to get access to it is to use a special standalone key. Regretfully, this declaration is absolutely true.

The approach to encrypt the files utilized by Nuksus is not completely looked into. Nevertheless, there is no doubt that each computer owner may be issued an unique decryption key, which is absolutely distinct. It is very difficult to recover the information without the proper type in place.

“Don’t worry, you can return all your files!”, from _readme.txt message:

Don't worry, you can return all your files! virus

One more peculiarity of the Nuksus infection is that the users are not able to get access to the key. The decrypting key is hosted on an unique server under the complete control by the scoundrels who have actually released the Nuksus infection into the world wide web. In order to obtain the key and restore the essential information, the users are told to connect with the frauds via email or by telegram and to pay the ransom in the quantity of $980.

The message also states that the people ought to contact the Nuksus authors within 72 hours upon the moment of the data file encryption. The alert suggests that by doing so individuals will acquire a 50% discount, therefore, the ransom amount drops down to $490.

No matter what the amount of the ransom is, we strongly recommend that you do not pay the ransom. There is no warranty that these online crooks will keep their guarantees, so they may not care at all what the victims feel about the file encryption, even when the amount of the ransom is gotten into their accounts. Thus, paying ransom frequently does not result in an effective recovery. So, the users might merely lose their money for absolutely nothing.

Similarly, we advise you not to call the scams as they instruct. Do not transfer money into their wallets. There are no applications that could crack the Nuksus ransomware or restore the data at no cost. For that reason, the only correct choice is to bring back the information from possible backups (if offered).

Virus Summary

Name Nuksus Ransomware
File Extension nuksus
Type Ransomware
Family DJVU
Short Description The ransomware encrypts all the data stored on your system and requires a ransom to be paid on your part supposedly to recover your important files.
Symptoms File encryption by the ransomware is performed by means of the AES-556 algorithm (CFB mode) encryption algorithm. Once the encryption is completed, the ransomware adds its special .nuksus extension to all the files modified by it.
Distribution Method Adware bundles and software cracks
Similar Infections Pedro, Nacro, Nasoh
Removal Tool   GridinSoft Anti-Malware

Do not forget that the Web is now loaded with infections similar to the Nuksus virus. For example, this particular hazard is basically identical to Brusaf and other ransomware-type infections. These harmful utilities have actually been established in order to secure the crucial data and reveal the demand for the users to pay the ransom. All these infections use the identical algorithm to generate the particular key for successful files decryption.

Unless the Nuksus ransomware is still under the development process or has actually got some hidden bugs, it is not possible to bring back the information manually. Therefore, the only working solution to avoid the loss of your essential information is to routinely preserve up-to-date backups of all your crucial documents.

Another essential piece of advice is to keep the backups on special storage not connected to your primary PC. For instance, you may store it on the USB Flash Drive, or some external drive, or by using the cloud data storage services. Keeping the backups on your system drive is very risky, because the backup might also be secured by the Nuksus infection.

Leaks for the Nuksus ransomware attack.

Nuksus utilizes lots of paths to infiltrate the susceptible computers. It is not particular what specific technique was used in your case, nevertheless, the intrusion might happen through the following channels:

  • bundling with third-party programs, generally free apps;
  • spam e-mails from the unknown senders;
  • sites supplying free hosting;
  • P2P (peer-to-peer) torrent downloads.

There are times when the Nuksus might disguise itself as some real application, for instance, through the deceptive alerts demanding installation of some software application upgrade. This is the most typical technique utilized by the scams to inject the Nuksus ransomware files into the system. By doing this users partly take part in its setup, without clearly understanding the danger.

In addition, the scams might send unsolicited spam email with difficult alerts motivating the people to open dubious accessories or click on some download links, for example, those motivating the people to open particular pictures, text files, tax files and other info.

No doubt, opening these files or clicking on the harmful links might essentially harm the system. Fake Adobe Flash Player upgrade notices may lead to the Nuksus ransomware infiltration. Similarly, downloading the split software might furthermore consist of the ransomware installer. The last but not the least, installation of Nuksus may take place through some Trojan horses that might be set up stealthily into the system and without the user’s direct approval or perhaps consent.

Avoiding the Nuksus virus attack.

Of course, there is no outright guarantee that your computer will be always free of any malware attacks, however, we would like to share some helpful tips with you to make it much safer. Ensure to pay extremely attention while browsing the web and particularly while downloading cost-free programs. Do not open any suspicious e-mail attachments, specifically if the sender is not understood to you.

Do not forget that certain freeware installer might likewise contain some other extra apps in the package. These additional applications might be very damaging. It is of utmost importance to keep your anti-virus software and your os in basic to be constantly appropriately upgraded.

It is quite sensible that downloading pirated apps is illegal, nevertheless, in addition, such unapproved programs use may also bring severe damage to your computer. Hence, do not download any split programs. Plus, the truth that your existing anti-virus did not safeguard the system from the Nuksus ransomware is a great reason for you to reassess your options and switch to another program that can render the protecting functions on a much better level.

Below please find the quotation from the Nuksus text file:

ATTENTION!
 
 Don't worry, you can return all your files!
 All your files like photos, 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-2P5WrE5b9f
 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:
 gorentos@bitmessage.ch
  
 Reserve e-mail address to contact us:
 gorentos2@firemail.cc
  
 Our Telegram account:
 @datarestore

Screenshot of files with “.nuksus” extension added by the ransomware:”

Nuksus Ransomware - encrypt files with .nuksus extension

Use GridinSoft Anti-Malware to remove Nuksus ransomware from your computer

1.Download GridinSoft Anti-Malware.

You can download GridinSoft Anti-Malware by clicking the button below:

  GridinSoft Anti-Malware

2. Double-click on the setup file.

When setup file has finished downloading, double-click on the setup-antimalware-ag.exe file to install GridinSoft Anti-Malware on your computer.
GridinSoft Anti-Malware
An User Account Control asking you about to allow GridinSoft Anti-Malware to make changes to your device. So, you should click “Yes” to continue with the installation.
GridinSoft Anti-Malware Setup

3. Press Install button for run GridinSoft Anti-Malware.

GridinSoft Anti-Malware Install

3.Once installed, GridinSoft Anti-Malware will automatically run.

GridinSoft Anti-Malware  Start

4. Wait for the GridinSoft Anti-Malware scan to complete.

GridinSoft Anti-Malware will automatically start scanning your computer for Win Speedup 2018 and other malicious programs. This process can take a 20-30 minutes, so we suggest you periodically check on the status of the scan process.
GridinSoft Anti-Malware Scan

5. Click on “Clean Now”.

When the scan has completed, you will see the list of infections that GridinSoft Anti-Malware has detected. To remove them click on the “Clean Now” button in right corner.
GridinSoft Anti-Malware Scan Result

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About Daniel Zimmermann

Daniel Zimmermann has been writing on security and malware subjects for many years and has been working in the security industry for over 10 years. Daniel was educated at the Saarland University in Saarbrücken, Germany and currently lives in New York.

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