Home / Removal Guide / Ransomware / Djvu Virus / BESUB Virus Removal Guide (+Decode .besub files) – Djvu Ransomware

BESUB Virus Removal Guide (+Decode .besub files) – Djvu Ransomware

BESUB – General Info

The BESUB mean a ransomware-type infection. The infection comes from the Djvu ransomware family. BESUB was elaborated specifically to encrypt all major file types. Once the file is encrypted people are unable to use them. BESUB adds the “.besub” extension for each file encrypted by it. For example, the file “myphoto.jpg“, when encrypted by BESUB, will be renamed into “myphoto.jpg.besub“. As soon as the encryption is completed, BESUB places a special text file into every folder containing the encrypted data.

The message given by BESUB text file requesting for the ransom is definitely the like the statements given by other ransomware representatives belonging to the Djvu clan. It actually mentions that the info is encrypted which the only way to bring back it is to use a an unique decryption key. Sadly, this is absolutely true. The type of cryptography mechanism applied by BESUB is still not appropriately examined. Still, it is definitely certain that each victim may be given the specific decryption key, which is completely unique. It is difficult to restore the files without the key available.

Another trick of BESUB is that the victims cannot gain access to the key. The key is stored on a particular server run by the frauds connected with BESUB ransomware. To get the key and recover the important information people have to pay the ransom, which amounts to $980. To acquire the payment information users are advised to contact the frauds through e-mail or telegram. The alert also indicates that the users require to contact the BESUB developers within 72 hours after the files encryption occurred. The message says that doing so users will get a 50% discount, so the ransom quantity will fall to $490.

However, irrespective of the requested amount, people should stay away from paying the ransom virus. Cyber frauds are not fair, so they tend to completely disregard what their victims feel about the issue, even when the payment reaches their pockets. This is why paying the ransom typically does not give any positive result and people just waste their money for absolutely nothing.

We highly recommend that you do not contact these crooks and definitely do not transfer money into their accounts. It is said to admit that there are no utilities able to crack BESUB ransomware and to recover the information data for free. Thus, the only best decision is to recover the lost information from the available backup.

Virus Summary

Name BESUB Ransomware
File Extension .besub
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 and RSA encryption algorithms. Once the encryption is completed, the ransomware adds its special besub extension to all the files modified by it.
Distribution Method Spam Emails, Email Attachments
Similar Infections Besub, Litar, Nusar
Removal Tool   GridinSoft Anti-Malware

Remember that the world wide web is now overwhelmed with threats that look similar to BESUB ransomware. It is similar Besub and many other ransomware-type threats. Destructive programs of such kind are normally elaborated to encrypt important information and to set forth the need prior to the user to pay the ransom. The peculiarity of all such ransomware threats is that all apply a comparable algorithm to generate the special decryption key for data decryption.

Hence, as long as the ransomware is still being developed or has some hidden bugs, by hand recovering the information is merely not feasible. The only method to avoid the loss of your essential data is to regularly create backups of your important information.

Remember that even if you create such backups, they must be put into a special storage utility not connect to your main computer. You may use the Memory Stick or external hard disk for this purpose, or refer to the help of the cloud storage. If you store your backup files on your common system they may be encrypted together with other files, so it’s absolutely not a good storage place.

How did ransomware infect my system?

There are numerous ways used by online scams to distribute BESUB virus. Despite the fact that it is uncertain how exactly BESUB injects your PC, there are some leaks through which it may infiltrate the system:

  • integration with third-party software, especially freeware;
  • spam emails from unidentified senders;
  • websites rendering free hosting services;
  • pirated peer-to-peer (P2P) downloads.

Typically BESUB ransomware may be presented as some legitimate software application, for instance, in the pop-ups instructing users to carry out some essential software updates. This is the typical trick used by online scams to persuade people into downloading and installing BESUB infection manually, by means of their direct participation in the installation process.

Furthermore, the criminals might refer to numerous e-mail spam tactics to inject malicious codes into copmuter. So, they may refer to to sending unsolicited spam emails with tricky notifications promoting users to download the attachments or click on certain download links, for example, the ones encouraging users to open some video, documents, tax reports or invoices.

Needless to mention, opening such documents or clicking on such dangerous links may severely harm the system. Fictitious Adobe Flash Player upgrade informs may result in BESUB ransom injection. As for the cracked software, these illegally downloaded programs may likewise consist of harmful codes leading to BESUB secret installation. Finally, injection of BESUB may occur by ways of Trojans that covertly get injected into the system and install malicious utilities without the user’s consent.

Is there any way to prevent the injection of BESUB ransom virus?

Although there is no 100% guarantee to avoid your system from getting infected, there are some pieces of suggestions we wish to share with with you. First of all, be really careful when you browse the web and particularly while downloading totally free programs. Stay away from opening suspicious email attachments, especially when the sender of the email is not familiar to you.

Bear in mind that some freeware installers may contain other unwanted utilities in the bundle, so they may be destructive. Make certain that your current antivirus and your entire OS is always appropriately updated.

Of course, downloading pirated software is unlawful and may lead to necessary damage to be produced your PC. Thus, stay away from downloading cracked software. You are likewise highly recommended to reconsider your existing security software and possibly switch to another security solution that can render better services of protecting your system.

Screenshot of files with “.besub” extension added by the ransomware:
BESUB Ransomware - encrypt files with .besub extension

Use GridinSoft Anti-Malware to remove BESUB 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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One comment

  1. HI,
    may i ask, how can i do to recover back my file that all have been besub file??
    as some file of them is very important to me

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