Nuhb Virus – Details
Nuhb is a destructive software working as common ransomware. Michael Gillespie, the well-known malware researcher, very first found this new name in the DJVU ransomware family.
Nuhb was developed for the sole purpose to encrypt all popular file types. Realistically, as soon as the encryption is successfully accomplished, the users are not able to get access to them. Nuhb virus adds its own “.nuhb” to all the encrypted files. For example, the file “price_list.xls”, as soon as modified by Nuhb, will be entitled as “price_list.xls.nuhb”. Once the file encryption is achieved, Nuhb puts its own unique text file (_readme.txt) into all the folders that store the encrypted files.
The message specified by _readme.txt asking for the random os extremely comparable to the notifications provided by other ransomware dangers 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 an unique standalone key. Regretfully, this declaration is definitely real.
The technique to encrypt the files utilized by Nuhb is not entirely investigated. Nevertheless, there is no doubt that each computer system owner might be provided a special decryption key, which is absolutely special. It is incredibly difficult to recover the information without the appropriate key in location.
“Don’t worry, you can return all your files!”, from _readme.txt message:
One more peculiarity of the Nuhb infection is that the users are not able to get access to the key. The decrypting key is hosted on a special server under the total control by the crooks who have actually introduced the Nuhb infection into the internet. In order to obtain the key and bring back the essential data, the users are told to connect with the scams via email or by telegram and to pay the ransom in the quantity of $980.
The message likewise states that the people ought to get in touch with the Nuhb authors within 72 hours upon the moment of the data file encryption. The alert indicates that by doing so individuals will get a 50% discount rate, for that reason, the ransom quantity drops down to $490.
Nuhb encrypted your files, however, it may not be the only risk on your PC. Plus, the ransomware might be hidden deep in the system. To identify and delete the risk entirely, we suggest you to describe the aid of GridinSoft Anti-Malware tool.
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No matter what the amount of the ransom is, we highly encourage that you do not pay the ransom. There is no guarantee that these online criminals will keep their pledges, so they might not care at all what the victims feel about the encryption, even when the quantity of the ransom is received into their accounts. Hence, paying ransom often does not lead to an effective healing. So, the users might merely lose their money for absolutely nothing.
Similarly, we advise you not to get in touch with the scams as they advise. Do not transfer loan into their wallets. There are no applications that could split the Nuhb virus or bring back the information for free. Therefore, the only right choice is to bring back the data from possible backups (if available).
Virus Summary
| Name | Nuhb Ransomware |
| File Extension | nuhb |
| 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-256 algorithm (CFB mode) encryption algorithm. Once the encryption is completed, the ransomware adds its special .nuhb extension to all the files modified by it. |
| Distribution Method | Adware bundles and software cracks |
| Similar Infections | Lokas, Besub, Nusar |
| Nuhb Removal Tool | GridinSoft Anti-Malware |
| Nuhb Decryption Tool | Emsisoft Djvu Decryptor |
Do not forget that the Web is now filled with infections similar to the Nuhb virus. For example, this particular danger is essentially similar to Brusaf and other ransomware-type infections. These destructive utilities have actually been developed in order to secure the important information and reveal the demand for the users to pay the ransom. All these infections use the similar algorithm to produce the particular key for effective information decryption.
Unless the Nuhb ransomware is still under the advancement procedure or has actually got some hidden bugs, it is not possible to bring back the data by hand. Hence, the only working service to prevent the loss of your essential data is to routinely maintain up-to-date backups of all your crucial files.
Another crucial piece of recommendations is to save the backups on special storage not connected to your main device. For example, you might save it on the USB Flash Drive, or some external disk drive, or by using the cloud data storage services. Keeping the backups on your routine drive is extremely risky, since the backup might likewise be encrypted by the Nuhb virus.
Leakages for the Nuhb ransomware attack.
Nuhb utilizes numerous paths to penetrate the vulnerable computer systems. It is not particular what specific technique was used in your case, nevertheless, the invasion might happen by means of the following channels:
- bundling with third-party programs, generally freeware;
- spam e-mails from the unidentified senders;
- websites offering complimentary hosting;
- P2P (peer-to-peer) torrent downloads.
There are times when the Nuhb ransomware might camouflage itself as some authentic application, for instance, through the misleading notifies demanding setup of some software application upgrade. This is the most typical trick used by the frauds to inject the Nuhb virus files into the system. By doing this users partly participate in its setup, without clearly comprehending the threat.
Moreover, the scams might send unsolicited spam e-mail with tricky alerts encouraging individuals to open dubious attachments or click some download links, for example, those motivating individuals to open specific images, text files, tax documents and other information.
No doubt, opening these files or clicking on the destructive links may essentially harm the system. Fake Media Player upgrade notices may result in the Nuhb ransomware seepage. Likewise, downloading the split software application may in addition contain the ransomware installer. The last but not the least, setup of Nuhb may take place through some Trojan horses that might be installed stealthily into the system and without the user’s direct permission and even authorization.
Avoiding the Nuhb virus attack.
Obviously, there is no outright guarantee that your computer system will be constantly free of any malware attacks, however, we wish to share some beneficial tips with you to make it much safer. Make sure to pay extremely attention while browsing the web and specifically while downloading cost-free programs. Do not open any suspicious email accessories, especially if the sender is not understood to you.
Do not forget that specific freeware installer might also contain some other additional apps in the package. These additional applications may be really damaging. It is of utmost significance to keep your anti-virus software application and your os in basic to be constantly appropriately updated.
It is quite logical that downloading pirated software is illegal, however, in addition, such unauthorized programs usage might also bring major damage to your PC. Hence, do not download any split programs. Plus, the reality that your present anti-virus did not protect the system from the Nuhb ransomware is a good factor for you to reconsider your options and change to another program that can render the securing functions on a far better level.
Below please find the quotation from the Nuhb 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: restorealldata@firemail.cc Reserve e-mail address to contact us: gorentos@bitmessage.ch Our Telegram account: @datarestore
Screenshot of files with “.nuhb” extension added by the ransomware:”
Use GridinSoft Anti-Malware to remove Nuhb ransomware from your computer
1.Download GridinSoft Anti-Malware.
You can get GridinSoft Anti-Malware by clicking the button below:
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.
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.
3. Press Install button for run GridinSoft Anti-Malware.
3.Once installed, GridinSoft Anti-Malware will automatically run.
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.
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.
Use Emsisoft Decryptor for restore nuhb files
You can download Emsisoft Decryptor by clicking the button below:
- Run the decryptor as an administrator. The license terms will show up, which you have to agree to by clicking the “Yes” button.
- Once the license terms are accepted, the primary decryptor user interface opens.
- By default, the decryptor will pre-populate the locations to decrypt with the currently connected drives and network drives. Additional locations can be added using the Add” button.
- Decryptors typically offer various options depending on the particular malware family. The available options are located in the Options tab and can be enabled or disabled there. You can find a detailed list of the available Options below.
- After you have added all the locations you want to decrypt to the list, click the “Decrypt” button to start the decryption process. The screen will switch to a status view, informing you about the current process and decryption status of your files
- The decryptor will inform you once the decryption process is finished. If you require the report for your personal records, you can save it by clicking the “Save log” button. You can also copy it straight to your clipboard to paste it into emails or forum posts if you are asked to.
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