Djvu VirusRansomwareRemoval Guide

Boot Virus Removal Guide (+Decrypt .boot files)

Boot Virus Ransomware

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

Boot was created for the sole function to encrypt all popular file types. Realistically, as soon as the encryption is successfully achieved, the users are not able to get access to them. Boot virus includes its own “.boot” to all the encrypted data. For instance, the file “price_list.xls”, once crypted by Boot, will be entitled as “price_list.xls.boot”. As soon as the file encryption is accomplished, Boot puts its own unique text file (_readme.txt) into all the folders that save the encrypted files.

The alert stated by document asking for the random os extremely comparable to the notifications given by other ransomware threats coming from the DJVU family. The caution generally indicates that the information has been encrypted and the only solution to get access to it is to use a special standalone key. Regretfully, this declaration is absolutely real.

The method to encrypt the files utilized by Boot is not entirely investigated. Nevertheless, there is no doubt that each computer owner might be provided an unique decryption key, which is definitely distinct. It is extremely difficult to recuperate the information without the appropriate type 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 Boot ransomware is that the users are not able to get access to the key. The decrypting key is hosted on a special server under the complete control by the crooks who have released the Boot virus into the world wide web. In order to obtain the key and bring back the essential data, the users are told to contact the frauds by means of e-mail or by telegram and to pay the ransom in the quantity of $980.

The message also states that the people must get in touch with the Boot 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 rate, for that reason, the ransom amount falls to $490.

No matter what the amount of the ransom is, we highly recommend that you do not pay the ransom. There is no assurance that these online scoundrels will keep their promises, 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. Thus, paying ransom typically does not result in an effective recovery. So, the users may simply lose their money for nothing.

Similarly, we advise you not to get in touch with the scams as they instruct. Do not move loan into their wallets. There are no applications that might split the Boot virus or restore the information for free. For that reason, the only correct decision is to restore the information from possible backups (if readily available).

Virus Summary

NameBoot Ransomware
File Extensionboot
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-556 algorithm (CFB mode) encryption algorithm. Once the encryption is completed, the ransomware adds its special .boot extension to all the files modified by it.
Distribution MethodAdware bundles and software cracks
Similar InfectionsNesa, Karl, Domm
Removal Tool   GridinSoft Anti-Malware

Do not forget that the Web is now loaded with infections similar to the Boot virus. For instance, this specific hazard is essentially identical to Brusaf and other ransomware-type infections. These harmful utilities have been developed in order to secure the important information and express the demand for the users to pay the ransom. All these infections use the similar algorithm to generate the specific key for successful files decryption.

Unless the Boot ransomware is still under the advancement procedure or has actually got some concealed bugs, it is not possible to bring back the information by hand. Thus, the only working option to prevent the loss of your crucial information is to frequently maintain up-to-date backups of all your crucial files.

Another essential piece of suggestions is to keep the backups on special storage not connected to your main PC. For instance, you may save it on the USB Flash Drive, or some external hard disk, or by using the cloud data storage services. Keeping the backups on your routine drive is very dangerous, since the backup might likewise be encrypted by the Boot infection.

Leakages for the Boot ransomware attack.

Boot utilizes numerous courses to infiltrate the susceptible computers. It is not certain what particular method was utilized in your case, however, the invasion might happen by means of the following channels:

  • bundling with third-party programs, mainly free apps;
  • spam emails from the unidentified senders;
  • sites supplying free hosting;
  • P2P (peer-to-peer) torrent software.

There are times when the Boot virus may camouflage itself as some genuine application, for example, through the misleading notifies demanding setup of some software application update. This is the most typical technique utilized by the scams to inject the Boot ransomware files into the system. In this manner users partly participate in its setup, without plainly comprehending the threat.

Furthermore, the frauds may send out unsolicited spam e-mail with difficult informs motivating individuals to open dubious attachments or click on some download links, for instance, those encouraging individuals to open particular images, text files, tax documents and other information.

No doubt, opening these files or clicking on the destructive links might essentially harm the system. Fake Media Player update notifications may lead to the Boot ransomware infiltration. Likewise, downloading the broken software application may additionally consist of the ransomware installer. The last but not the least, setup of Boot might take place through some Trojan horses that might be set up stealthily into the system and without the user’s direct authorization and even consent.

Preventing the Boot ransomware injection.

Obviously, there is no absolute warranty that your computer system will be constantly without any malware attacks, nevertheless, we want to share some useful pointers with you to make it safer. Ensure to pay really attention while browsing the web and especially while downloading cost-free programs. Do not open any suspicious email accessories, specifically if the sender is not understood to you.

Do not forget that particular freeware installer may likewise include some other extra apps in the package. These additional applications may be very destructive. It is of utmost value to keep your anti-virus software application and your operating system in general to be constantly properly upgraded.

It is quite sensible that downloading cracked programs is unlawful, however, furthermore, such unapproved software usage might likewise bring severe damage to your system. Thus, do not download any split programs. Plus, the reality that your existing anti-virus did not protect the system from the Boot ransomware is a great factor for you to reassess your options and switch to another program that can render the securing functions on a better level.

Below please find the quotation from the Boot 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 “.boot” extension added by the virus:”

Boot Ransomware - encrypt files with .boot extension

Use GridinSoft Anti-Malware to remove Boot 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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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 Saarbr├╝cken, Germany and currently lives in New York.

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One Comment

  1. pls daniel my system was attacked by ransomeware with .boot extension i cant find any ransomeware text on my entire laptop

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