Djvu VirusRansomwareRemoval Guide

Nood Virus Removal Guide (+Decrypt .nood files)

Nood – General Info

Nood is a malicious software application working as common ransomware. Michael Gillespie, the popular virus researcher, first found this new name in the DJVU ransomware family.

Nood was developed for the sole function to encrypt all popular file types. Logically, as soon as the encryption is successfully accomplished, the users are unable to get access to them. Nood ransomware adds its own “.nood” to all the encrypted files. For instance, the file “price_list.xls”, once crypted by Nood, will be entitled as “price_list.xls.nood”. When the encryption is achieved, Nood puts its own distinct text file (_readme.txt) into all the folders that keep the encrypted files.

The message stated by _readme.txt asking for the random os very similar to the notifications offered by other ransomware threats coming from the DJVU family. The warning essentially shows that the information has been secured and the only solution to get access to it is to use a distinct standalone key. Regretfully, this declaration is definitely true.

The method to encrypt the files used by Nood is not entirely researched. However, there is no doubt that each computer system owner may be provided an unique decryption key, which is definitely distinct. It is extremely tough to recuperate the data without the proper type in location.

“Don’t worry, you can return all your files!”, from text file message:

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

One more peculiarity of the Nood infection is that the users are unable to get access to the key. The decrypting key is hosted on a special server under the total control by the crooks who have released the Nood virus into the web. In order to acquire the key and bring back the crucial data, the users are told to connect with the scams through email or by telegram and to pay the ransom in the amount of $980.

The message also says that the people should contact the Nood authors within 72 hours upon the moment of the information file encryption. The alert shows that by doing so individuals will get a 50% discount, for that reason, the ransom amount drops down to $490.

No matter what the amount of the ransom is, we highly advise that you do not pay the ransom. There is no guarantee that these online scoundrels will keep their promises, so they may not care at all what the victims feel about the file encryption, even when the amount of the ransom is received into their accounts. Thus, paying ransom often does not result in an effective recovery. So, the users might just lose their money for absolutely nothing.

Similarly, we urge you not to get in touch with the frauds as they advise. Do not move loan into their wallets. There are no applications that might split the Nood virus or restore the data at no charge. For that reason, the only proper choice is to restore the data from possible backups (if readily available).

Virus Summary

NameNood Ransomware
File Extensionnood
TypeRansomware
FamilyDJVU
Short DescriptionThe 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.
SymptomsFile 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 .nood extension to all the files modified by it.
Distribution MethodAdware bundles and software cracks
Similar InfectionsLokas, Besub, Nusar
Nood Removal Tool   GridinSoft Anti-Malware
Nood Decryption Tool   Emsisoft Djvu Decryptor

Do not forget that the Web is now filled with infections comparable to the Nood ransomware. For instance, this particular hazard is basically similar to Brusaf and other ransomware-type infections. These damaging utilities have been established in order to secure the essential data and reveal the demand for the users to pay the ransom. All these infections use the identical algorithm to produce the particular key for successful files decryption.

Unless the Nood ransomware is still under the advancement procedure or has actually got some hidden bugs, it is not possible to bring back the data manually. Thus, the only working solution to avoid the loss of your essential data is to frequently preserve current backups of all your essential documents.

Another important piece of suggestions is to store the backups on special storage not connected to your main device. For example, you may store it on the USB Flash Drive, or some external hard disk drive, or by using the cloud data storage services. Keeping the backups on your routine drive is really risky, considering that the backup may also be encrypted by the Nood ransomware.

Leakages for the Nood ransomware attack.

Nood utilizes numerous paths to penetrate the susceptible computer systems. It is not particular what specific approach was used in your case, however, the intrusion might occur via the following channels:

  • bundling with third-party programs, mainly freeware;
  • spam e-mails from the unknown senders;
  • websites providing complimentary hosting;
  • P2P (peer-to-peer) torrent downloads.

There are times when the Nood virus might disguise itself as some genuine application, for example, through the misleading notifies demanding installation of some software upgrade. This is the most typical trick used by the scams to inject the Nood virus files into the system. In this manner users partially take part in its setup, without plainly comprehending the threat.

In addition, the scams may send out unsolicited spam e-mail with challenging notifies motivating the people to open suspicious attachments or click on some download links, for instance, those motivating individuals to open particular photos, text files, tax files and other info.

No doubt, opening these files or clicking the malicious links may basically damage the system. Fake Adobe Flash Player upgrade notifications may lead to the Nood ransomware seepage. Likewise, downloading the broken software might in addition consist of the ransomware installer. The last however not the least, setup of Nood might occur through some Trojan horses that might be set up stealthily into the system and without the user’s direct permission or even approval.

Avoiding the Nood virus injection.

Naturally, there is no outright assurance that your computer will be constantly devoid of any malware attacks, however, we would like to share some useful ideas with you to make it more secure. Make certain to pay very close attention while browsing the web and especially while downloading cost-free programs. Do not open any suspicious e-mail accessories, particularly if the sender is not understood to you.

Do not forget that specific freeware installer might likewise include some other extra apps in the bundle. These additional applications might be very damaging. It is of utmost importance to keep your anti-virus software and your operating system in general to be constantly correctly updated.

It is quite logical that downloading pirated software is unlawful, however, furthermore, such unauthorized software use might also bring serious damage to your PC. Hence, do not download any cracked programs. Plus, the reality that your current anti-virus did not protect the system from the Nood ransomware is a great factor for you to reassess your options and change to another program that can render the safeguarding functions on a much better level.

Below please find the quotation from the Nood 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 “.nood” extension added by the virus:”

Nood Ransomware - encrypt files with .nood extension

Use GridinSoft Anti-Malware to remove Nood 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

Use Emsisoft Decryptor for restore nood files

You can get Emsisoft Decryptor by clicking the button below:

  Emsisoft Decryptor

  1. Run the decryptor as an administrator. The license terms will show up, which you have to agree to by clicking the “Yes” button.
  2. Once the license terms are accepted, the primary decryptor user interface opens.
  3. 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.
  4. 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.
  5. 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
  6. 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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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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