Djvu VirusRansomwareRemoval Guide

Hoop Virus Removal Guide (+Decrypt .hoop files)

Hoop Virus – Details

Hoop is a harmful software application functioning as common ransomware. Michael Gillespie, the well-known malware researcher, very first found this new name in the DJVU ransomware family.

Hoop was developed for the sole purpose to encrypt all popular file types. Realistically, as soon as the file encryption is effectively accomplished, the users are not able to get access to them. Hoop virus includes its own “.hoop” to all the encrypted data. For example, the file “price_list.xls”, as soon as modified by Hoop, will be titled as “price_list.xls.hoop”. As soon as the file encryption is achieved, Hoop puts its own special text document (_readme.txt) into all the folders that save the encrypted files.

The message stated by text file asking for the random os really similar to the alerts given by other ransomware threats coming from the DJVU family. The caution essentially shows that the information has been secured and the only solution to get access to it is to use a special standalone key. Regretfully, this statement is definitely real.

The technique to encrypt the files used by Hoop is not entirely researched. However, there is no doubt that each computer system owner might be provided an unique decryption key, which is absolutely special. It is incredibly hard to recuperate the data without the appropriate key in place.

“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 Hoop 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 scoundrels who have released the Hoop infection into the web. In order to obtain the key and bring back the important data, the users are informed to get in touch with the scams via e-mail or by telegram and to pay the ransom in the amount of $980.

The message also says that the people should call the Hoop authors within 72 hours upon the minute of the information file encryption. The alert suggests that by doing so the people will get a 50% discount rate, therefore, the ransom quantity falls to $490.

No matter what the quantity of the ransom is, we highly recommend that you do not pay the ransom. There is no guarantee that these online criminals will keep their guarantees, so they might not care at all what the victims feel about the file encryption, even when the quantity of the ransom is gotten into their accounts. For this reason, paying ransom often does not result in a successful recovery. So, the users might just lose their money for nothing.

Similarly, we prompt you not to get in touch with the scams as they advise. Do not transfer cash into their wallets. There are no applications that might crack the Hoop ransomware or restore the data at no cost. Therefore, the only proper choice is to restore the information from possible backups (if offered).

Virus Summary

NameHoop Ransomware
File Extensionhoop
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 .hoop extension to all the files modified by it.
Distribution MethodAdware bundles and software cracks
Similar InfectionsLokas, Besub, Nusar
Hoop Removal Tool   GridinSoft Anti-Malware
Hoop Decryption Tool   Emsisoft Djvu Decryptor

Do not forget that the Internet is now filled with infections comparable to the Hoop ransomware. For instance, this particular risk is basically identical to Brusaf and other ransomware-type infections. These destructive utilities have been established in order to secure the crucial information and express the need for the users to pay the ransom. All these infections use the similar algorithm to generate the specific key for successful information decryption.

Unless the Hoop ransomware is still under the advancement process or has actually got some concealed bugs, it is not possible to restore the data manually. Thus, the only working solution to avoid the loss of your important data is to routinely preserve current backups of all your essential documents.

Another crucial piece of advice is to keep the backups on unique storage not connected to your main computer. For example, you may keep it on the USB Flash Drive, or some external disk drive, or by using the cloud data storage services. Keeping the backups on your system drive is very dangerous, considering that the backup might also be secured by the Hoop virus.

Leakages for the Hoop ransomware attack.

Hoop utilizes many paths to penetrate the susceptible computers. It is not specific what particular method was used in your case, however, the intrusion might happen by means of the following channels:

  • bundling with third-party programs, primarily free software;
  • spam e-mails from the unidentified senders;
  • sites offering complimentary hosting;
  • P2P (peer-to-peer) torrent software.

There are times when the Hoop ransomware may disguise itself as some genuine application, for example, through the misleading informs requiring setup of some software upgrade. This is the most common technique utilized by the frauds to inject the Hoop infection files into the system. In this manner users partly take part in its setup, without clearly understanding the danger.

Moreover, the scams may send out unsolicited spam email with tricky alerts motivating individuals to open dubious accessories or click some download links, for instance, those motivating the people to open specific photos, text files, tax documents and other information.

No doubt, opening these files or clicking the malicious links may basically damage the system. Fake Acrobat Reader upgrade notifications may result in the Hoop ransomware infiltration. Likewise, downloading the split software might additionally contain the ransomware installer. The last however not the least, installation of Hoop might occur through some Trojan horses that might be installed stealthily into the system and without the user’s direct permission or even permission.

Preventing the Hoop ransomware injection.

Of course, there is no outright warranty that your computer system will be always free of any malware attacks, nevertheless, we want to share some useful ideas with you to make it safer. Make sure to pay very close attention while browsing the web and especially while downloading cost-free programs. Do not open any suspicious e-mail attachments, particularly if the sender is not understood to you.

Do not forget that particular 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 and your os in general to be always effectively updated.

It is rather rational that downloading pirated software is illegal, nevertheless, additionally, such unauthorized apps usage may likewise bring major damage to your computer. Thus, do not download any split programs. Plus, the truth that your present anti-virus did not secure the system from the Hoop ransomware is a great reason for you to reevaluate 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 Hoop text file:

 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:
 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:
 Reserve e-mail address to contact us: 

 Our Telegram account:

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

Hoop Ransomware - encrypt files with .hoop extension

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

1.Download GridinSoft Anti-Malware.

You can get 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 hoop 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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