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.REVENGE File Virus Remove and Restore Files

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Article created to help you remove the Revenge ransomware virus and restore files encrypted with the .revenge file extension.

A well-coded ransomware infection that is using the AES and RSA encryption algorithms has been reported to infect users since March 2017. The ransomware virus Is dubbed Revenge ransomware and aims to encrypt the files on the computers infected by it. After the encryption, Revenge ransomware drops a # !!!HELP_FILE!!! #.TXT note in which it demands a payment to return all the files. The virus creators communicate via e-mail. In case you have become a victim of this ransomware infection, recommendations are to read this article completely.

Threat Summary



Short DescriptionThe malware encrypts users files using a strong encryption algorithm, making direct decryption possible only via a unique decryption key available to the cyber-criminals.
SymptomsThe user may witness ransom notes and “instructions” linking to a web page and a decryptor. Changed file names and the file-extension .REVENGE has been used.
Distribution MethodVia an Exploit kit, Dll file attack, malicious JavaScript or a drive-by download of the malware itself in an obfuscated manner.
Detection Tool See If Your System Has Been Affected by Revenge


Malware Removal Tool

User ExperienceJoin our forum to Discuss Revenge.
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.

Revenge Ransomware – How Does It Infect

For this virus to become active and infect an increasing number of Windows users’ multiple techniques are reportedly used. One of them is to utilize malicious files that contain either the Rig Exploit Kit or EiTest kit, web-injectors and fake updates for the infection. Such may be spread by being added as web links or malicious e-mail attachments in archives. The e-mails accompanying those attachments may contain deceptive messages that aim to trick the user into opening them, for instance:

After the user opens the malicious e-mail attachment, Revenge ransomware becomes activated and multiple malicious files are downloaded onto the computer of the user:

  • Rig-EK.swf
  • Svchost.exe
  • {random named file}.exe
  • {random named file(2)}.exe
  • {random named file(3)}.exe
  • {random named file}.bin.exe
  • # !!!HELP_FILE!!! #.TXT

Most of the files are located in the %AppData% dorectory. But there is also the situation with malicious files that are located in the %Windows NT% directory.

Revenge Ransomware – Infection Analysis

After the infection by Revenge ransomware has been initiated, the virus begins to perform multiple different types of modifications to the computer, starting with the executing of administrative Windows commands in the Command Prompt without the user noticing. The commands are reported by researchers to be the following:

→ /C vssadmin.exe Delete Shadows /All /Quiet
/C bcdedit /set {default} recoveryenabled No
/C bcdedit /set {default} bootstatuspolicy ignoreallfailures
/C net stop vss
/C vssadmin.exe Delete Shadows /All /Quiet
/C net stop vss

These commands are executed with the one and only purpose to stop the volume shadow service and delete the volume shadow copies (backed up files) in a quiet mode, without the user even seeing it.

In the meantime, Revenge ransomware also establishes connection with the following hosts:

  • dfg.stickneylodge.com (
  • www.everythingcebu.com

The virus also performs multiple other modifications, such as changing the functionality of the autorun service to run malicious executables on system boot. Revenge ransomware also steals confidential information from the web browsers of the infected computer and this may even include passwords and login usernames. This activity is very typical for evolved ransomware viruses, known as doxware.

Revenge Ransomware – Encryption Process

For the encryption of Revenge ransomware, multiple different processes are initiated in the Windows Task Manager to ensure that it is uninterrupted. The encryption procedure targets over 400 different types of files, including pictures, archives, documents, videos and other widely used content. When we put together all of the file extensions together, the list of encrypted files, if detected, becomes quite big:


For the encryption process, Revenge ransomware reportedly uses two types of encryption algorithms which are both very strong:

  • RSA-1024
  • AES-256

For the specific encryption process of the files, the AES cipher may be used. Bytes of the original files are replaced with encrypted data and the files become no longer openable. After the procedure is complete, the RSA cipher may be additionally applied to generate unique decryption keys, which makes decryption even more difficult and highly unlikely.

The files are appended the .revenge file extension after the encryption process has completed and they may also contain a victim id, the file name in an encrypted format, a 8 character string and another filename in an 8 character encrypted format and after all of these, the files have the extension appended. They may look like the following:

After the encryption process is complete, the # !!!HELP_FILE!!! #.TXT appears on the infected computer. It has the same message written in 5 languages (English, Italian, German, Polish, Korean):

Remove Revenge Ransomware and Restore .REVENGE Files

Before attempting any removal of this ransomware infections, malware researchers strongly recommend to focus on backing up the files that have been encrypted by this ransomware infection, just in case.

Then, we advise you to follow the step-by-step removal guide below which will show you how to remove the Revenge ransomware infection from your computer permanently. In case you lack the experience to perform a manual removal, experts always advise taking the approach that is conducted automatically. It includes the download and installation of an advanced anti-malware program which will take care of the Revenge virus swiftly and protect your computer in the future too.

After having already taken care of the malicious objects dropped by Revenge on your computer, recommendations are to try and restore your files using alternative tools, like the ones we suggested in step “2. Restore files encrypted by Revenge” below. These tools are in no way guarantee that you will recover all your encrypted data, however they are a good alternative, because at least some of the files can be recovered this way.


Ventsislav Krastev

Ventsislav has been covering the latest malware, software and newest tech developments at SensorsTechForum for 3 years now. He started out as a network administrator. Having graduated Marketing as well, Ventsislav also has passion for discovery of new shifts and innovations in cybersecurity that become game changers. After studying Value Chain Management and then Network Administration, he found his passion within cybersecrurity and is a strong believer in basic education of every user towards online safety.

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  1. AvatarCarlos Mario Nieto Gomez

    BS DIAS EWSTOYB INFECTADO CON EL VIRUS, TODOS MIS ARCHIVOS TIENEN EXTENSIÓN .SAGE Y QUEDARON INUTILES. NO LOS PUEDO ABRIR. NO PUEDO RESTAURAR POR QUE BORRO TODOS LO S PUNTOS DE RESTAURACION, BAJE LA HERRAMIENTA SPY HUNTER V 4.0, ELIMINO ALGUNAS AMENAZAS PERO NINGUNA CON RELACION A ESE VIRUS. BAJE OTRA HERRAMIENTA PARA RECUPERACION DE ARCHIVOS PERO NO ME RECUPERO TODO. ¿ Hay alguna manera de restaurar los archivos a su estado original? o el virus borra el archivo original y crea una copia con la extension *.sage? entonces toca recuperar con software de recuperacion de archivos?. muchas gracias. mi Nombre es carlos mario nieto de santa marta, magdalena, colombia Email; cnietogomez@hotmail.com, 3004823295 – 4224508 – 4203362

    1. AvatarVencislav Krustev

      hello, from what you wrote, i understand that you were infected by Sage ransomware. For more information on sage, please visit the following article:



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