.besub Files Virus – How to Remove It

.besub Files Virus – How to Remove It

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What is .besub files virus? How did it infect your system? Is there a chance to restore .besub files? Our ransomware removal guide will help you understand the answers to all these questions.


The so-called .besub files virus is data locker ransomware that corrupts computer systems, encrypts personal files and requires ransom payment for files recovery. Since it is designed to use a strong cipher algorithm that transforms the code of target files it leaves them out of order. To mark them the ransomware appends the extension .besub . At the end of the attack, .besub ransomware drops a ransom note file that contains instructions on how to pay the ransom for the decryption tool.

Threat Summary

TypeRansomware, Cryptovirus
Short DescriptionA data locker ransomware that utilizes sophisticated cipher algorithm to encrypt valuable files, marks them with the .besub extension and attempts to extort a ransom payment.
SymptomsYou cannot open files that have the extension .besub appended to their names. A ransom message attempts to blackmail you into transferring ransom fee to cybercriminals.
Distribution MethodSpam Emails, Email Attachments
Detection Tool See If Your System Has Been Affected by .besub


Malware Removal Tool

User ExperienceJoin Our Forum to Discuss .besub.
Data Recovery ToolWindows Data Recovery by Stellar Phoenix Notice! This product scans your drive sectors to recover lost files and it may not recover 100% of the encrypted files, but only few of them, depending on the situation and whether or not you have reformatted your drive.

.besub Files Virus – Decryptor Released (July 2019 Update)

In Juy 2019 a decryptor for the .besub files virus and its collected so far STOP ransomware offline ID’s. This means that it will work for some of the infections but not all of them. Furthermore there is no guarnatee that it will not corrupt the data. In all cases it is way of attempting to restore and recover the encrypted data.
See this article for more information:

Remove STOP (DJVU) Ransomware + Decrypt Files

.besub Files Virus – What is It All About?

The name .besub files virus is given to a recently detected ransomware infection. Security researchers reported that the it is a strain of the infamous

STOP ransomware. As a typical data locker ransomware .besub primarily aims to encrypt personal files and mark them with an extension of the same name.

For the purpose, the ransomware performs lots of malicious operations that disrupt system security, corrupt the settings of essential components and enable it to load its malicious files on every system start.

Currently, the exact methods of its distribution are not revealed. But the guesses are that hackers bet on some of the most popular ones. Examples of such are malspam, corrupted websites, freeware installers, fake software updates and malvertising.

As a preferred one is considered to be the malspam. Malspam or malicious spam emails that attempt to deliver malicious code on PCs is a spread technique that lets hackers target as many online users as possible. The malicious code is usually presented as an attached file or clickable URL address. To make you more prone to download the file or click the link, these emails may be set to pose as representatives of legitimate business and governmental services. In the event that you follow the instructions given in the text message, you will allow the ransomware payload to run on your device.

Once .besub files viurs is ready to start the data encryption stage it activates a built-in cipher module that is configured to run a scam of predefined types of files and encodes all them with the help of a highly sophisticated cipher algorithm such as AES or RSA. Here are the types of files that may be included in its target list:

  • Audio files
  • Video files
  • Document files
  • Image files
  • Backup files
  • Banking credentials, etc

Following encryption, all these files display the extension .besub at the end of their names. Due to all changes applied to their code, they remain inaccessible. As a result, .besub virus attempts to trick you into paying ransom to hackers. The extortion process is realized via ransom note file. This file may either force you to contact them at a given email address or instruct you how to purchase digital currency for the ransom fee.

Be advised to refrain from paying hackers the ransom as this action does not guarantee the recovery of .besub files. Since the code of their threat may be full of bugs, their decrypter may not be working.

Remove .besub Files Virus and Attempt to Restore Data

The so-called .besub files virus is a threat with highly complex code designed to corrupt both system settings and valuable data. So the only way to use your infected computer in a secure manner again is to remove .besub virus with all its malicious files and objects from the computer system. For the purpose, you could use our removal guide that reveals how to clean and secure your system step by step. You will also be presented with several alternative data recovery approaches that may be helpful in attempting to restore .besub files. We remind you to back up all encrypted files to an external drive before the recovery process.

Gergana Ivanova

Gergana Ivanova

Gergana has completed a bachelor degree in Marketing from the University of National and World Economy. She has been with the STF team for three years, researching malware and reporting on the latest infections.

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