How to Remove BlackRuby Ransomware and Restore Files

How to Remove BlackRuby Ransomware and Restore Files

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remove blackruby ransomware restore files

This article is created to help you remove BlackRuby ransomware and restore .BlackRuby files via alternative data recovery methods. In case that you want to start the removal right now, go straight to the instructions at the end of the article.

BlackRuby ransomware is a severe threat that plagues the system in order to encode sensitive data and demand a ransom for its decryption. Corrupted files can be recognized by the extension .BlackRuby appended to their names. In a file named how-to-decrypt-files.txt you can find a ransom message that primarily aims to urge you contact hackers at and transfer a ransom of $650 to their Bitcoin address. In addition BlackRuby ransomware drops XMRig software to mine for Monero cryptocurrency.

Threat Summary

TypeRansomware, Cryptovirus
Short DescriptionThe ransomware virus encrypts files on your PC and drops a ransom note that demands payment for the decryption of .BlackRuby files. It then drops a Monero miner on the system.
SymptomsThis ransomware encrypts your files and then appends the extension .BlackRuby on every encrypted file. A miner malware utilizes system resources to mine for Monero digital curency.
Distribution MethodSpam Emails, Email Attachments, Executable Files
Detection Tool See If Your System Has Been Affected by BlackRuby


Malware Removal Tool

User ExperienceJoin Our Forum to Discuss BlackRuby.
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.

BlackRuby Ransomware – Distribution

The analyzed BlackRuby ransomware samples point out that an executable file called WINDOWSUI.EXE triggers the infection. How this file could land on your system is via email spam messages, fake software update notifications, compromised third-party installers, malvertising and other shady techniques for ransomware distribution.

Ever since the ransomware went viral, email spam messages are the most preferred way of its distribution. Such emails are usually well crafted by hackers who hope that you will get tricked into installing the ransomware on your system. Common traits of emails carriers of malware are:

  • Spoofed email address and sender
  • Text messages that attempt to provoke sense of urgency
  • File attachment you need to download and see as soon as possible
  • In-text link you should follow in order to obtain important information

By opening the compromised file attachment, you automatically grant access to BlackRuby ransomware to your system. The same happens in case that you decide to click on the presented link and visit the web page.

Fake software update notifications may be designed to look exactly as the ones provided by the official product. As an example, you may check our article about a newly discovered pop-up that introduces a fake Java Update. Such notifications usually prompt you to download an executable file on your PC. Beware with any suspicious pop-ups that appear on your screen as they may serve as a gate for the malicious ransomware payload WINDOWSUI.EXE.

BlackRuby Ransomware – Infection Flow

Once BlackRuby ransomware is running on your system it initiates a sequence of malicious actions. In the beginning, it may establish connection with its command and control server in order to arm itself with all the needed files for the attack. There are several essential Windows system folders where the malicious files may be dropped:

  • %AppData%
  • %Temp%
  • %Roaming%
  • %Common%
  • %System32%

When BlackRuby got all malicious files on the compromised host, it may access the Registry Editor to add specific values under the Run and RunOnce sub-keys. The ransomware targets these two keys because they have the functionality to execute predefined files on each Windows system launch.

Furthermore, by contaminating these keys BlackRuby is able to display its ransom note on the screen at the end of the attack. The ransom note file is called how-to-decrypt-files.txt and could be found on the desktop. It primarily aims to urge you contact hackers at and transfer a ransom of $650 to their Bitcoin address. However, if you don’t want to lose your money and get tricked again, it is better to try to overcome the problem with the help of reliable and secure solutions.

Below you can read the whole ransom message and see how it looks like:

Black Ruby
=== Identification Key ===
[redacted] === Identification Key ===
[Can not access your files?] Congratulations, you are now part of our family #BlackRuby Ransomware. The range of this family is wider and bigger every day.
Our hosts welcome our presence because we will give them a scant souvenir from the heart of Earth.
This time, we are guest with a new souvenir called “Black Ruby”. A ruby in black, different, beautiful, and brilliant, which has been bothered to extract those years and you must also endure this hard work to keep it. If you do not have the patience of this difficulty or you hate some of this precious stone, we are willing to receive the price years of mining and finding rubies for your relief and other people of the world who are guests of the black ruby.
So let’s talk a little bit with you without a metaphor and literary terms to understand the importance of the subject.
It does not matter if you’re a small business or you manage a large organization, no matter whether you are a regular user or a committed employee, it’s important that you have a black ruby and to get rid of it, you need to get back to previous situation and we need a next step.
The breadth of this family is not supposed to stop, because we have enough knowledge and you also trust our knowledge.
We are always your backers and guardian of your information at this multi-day banquet and be sure that no one in the world can take it from you except for us who extracts this precious stone.
We need a two-sided cooperation in developing cybersecurity knowledge. The background to this cooperation is a mutual trust, which will result in peace and tranquility, you must pay $650 (USD) worth of Bitcoins for restore your system to the previous state and you are free to choose to stay in this situation or return to the normal.
Do not forget that your opportunity is limited. From these limits you can create golden situations. Be sure we will help you in this way and to know that having a black ruby does not always mean riches. You and your system are poor, poor knowledge of cybersecurity and lack of security on your system!.
[HOW TO DECRYPT FILES] 1. Copy “Identification Key”.
2. Send this key with two encrypted files (less than 5 MB) for trust us to email address “”.
3. We decrypt your two files and send them to your email.
4. After ensuring the integrity of the files, you must pay $650 (USD) with bitcoin and send transaction code to our email, our bitcoin address is “19S7k3zHphKiYr85T25FnqdxizHcgmjoj1”.
5. You get “Black Ruby Decryptor” Along with the private key of your system.
6. Everything returns to the normal ana your files will be released.
[What is encryption?] Encryption is a reversible modification of information for security reasons but providing full access to it for authorised users.
To become an authorised user and keep the modification absolutely reversible (in other words to have a possibility to decrypt your files) you should have an “Personal identification Key”. But not only it. It is required also to have the special decryption software (in your case “Black Ruby Decryptor” software) for safe and complete decryption of all your files and data.
[Everything is clear for me but what should I do?] The first step is reading these instructions to the end. Your files have been encrypted with the “Black Ruby Ransomware” software; the instructions (“how-to-decrypt-files.txt”) in the folders with your encrypted files are not viruses, they will help you. After reading this text the most part of people start searching in the internet the words the “Black Ruby Ransomware” where they find a lot of ideas, recommendation and instructions, it is necessary to realise that we are the ones who closed the lock on your files and we are the only ones who have this secret key to open them.
[Have you got advice?] [*** Any attempts to get back you files with the third-party tools can be fatal for your encrypted files ***] The most part of the tried-party software change data with the encrypted files to restore it but this cases damage to the files.
Finally it will be impossible to decrypt your files, when you make a puzzle but some items are lost, broken or not put in its place – the puzzle items will never match, the same way the third-party software will ruin your files completely and irreversibly. You should realise that any intervention of the third-party software to restore files encrypted with the Black Ruby Ransomware” software may be fatal for your files.
If you look through this text in the internet and realise that something is wrong with your files but you do not have any instructions to restore your files, please contact your antivirus support.

blackruby ransomware how-to-decrypt-files.txt ransom note

To make it worse BlackRuby ransomware drops XMRig software to mine for Monero cryptocurrency. XMRig is an open source project that is claimed to be the fastest CPU miner for Monero. Once the miner is running on your system, it takes advantage of the processor or the graphics card’s power to generate income in Monero digital currency to hackers. As a result your system becomes sluggish and even crashes at times. Unfortunately, heavy system settings modifications can make the miner hard to detect and remove. That’s why you should utilize a quality anti-spyware solution to remove all files associated with the devastating BlackRuby infection.

BlackRuby Ransomware – Data Encryption

BlackRuby ransomware is primarily designed to scan for predefined types of files and encrypt them by utilizing strong cipher algorithm. After encryption corrupted files are renamed with a long sequence of extensions that follows the pattern:

Encrypted_[random string].BlackRuby

In case of infection, the ransomware can make your documents, images, videos, projects, databases, text files, music and other files that store sensitive information completely unusable.

In addition as most crypto viruses BlackRuby is believed to delete all Shadow Volume copies stored by the Windows system as they can be used as a data recovery way of corrupted .BlackRuby files.

How to Remove BlackRuby Ransomware and Restore Files

Тo remove BlackRuby crypto virus just follow the step-by-step removal guide below which provides both manual and automatic approach. Due to the complexity of ransomware code, security researchers recommend the help of advanced anti-malware tool for maximum efficiency.

Once the removal is complete, alternative data recovery approaches could be also found in the guide. They may be useful for the restore of some .BlackRuby files. Be advised to back up all encrypted files to an external drive before you proceed with 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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1 Comment

  1. AvatarRui

    backup always!!!


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