Rumba Ransomware

Also Known As: Rumba virus
Distribution: Low
Damage level: Severe

Rumba ransomware removal instructions

What is Rumba?

Rumba is a high-risk computer infection categorized as ransomware. It is a new variant of Djvu ransomware and was discovered by Michael Gillespie. Programs of this type are designed to encrypt data (rendering it unusable) and keep it in that state unless a ransom is paid. To retrieve their files, users are encouraged to purchase a decryption tool. After encryption, all files are renamed by adding the ".rumba" extension. For example, "1.jpg" becomes "1.jpg.rumba". Instructions about how to decrypt files can be found in the "_openme.txt" text file (ransom message).

Cyber criminals state in the ransom message that Rumba has encrypted all files using the strongest encryption. The only way to retrieve them is to purchase a specific decryption tool. As a 'guarantee' that they have such a tool and can be trusted, the criminals offer free decryption of one file. Furthermore, they even offer a 50% discount to victims who contact them within 72 hours. Victims are encouraged to send them an email via pdfhelp@india.com or pdfhelp@firemail.cc containing a personal ID, which is provided in the "_openme.txt" file. Most cyber criminals use encryption algorithms that cannot be 'cracked' without using the correct tool (decryption tool or key). Cyber criminals use cryptographies (symmetric or asymmetric) that generate unique keys. They store these keys on remote servers that can be accessed only by them. The only option remaining is to contact cyber criminals, however, they cannot be trusted. Generally, they ignore victims once ransoms are paid. In this way, people are scammed. The best option in these cases is to use a data backup (if one has been created) and restore everything from there.

Screenshot of a message encouraging users to pay a ransom to decrypt their compromised data:

Rumba decrypt instructions

Most ransomware-type infections are very similar: they encrypt data and make ransom demands. Common differences are cost of decryption tool and the cryptography algorithm used to encrypt data. Examples of other ransomware-type programs include Dharma-Gif, GandCrab 5.1, and Obfuscated. Decryption without the involvement of cyber criminals is impossible, unless these programs have bugs/flaws or are still in development. In any case, we recommend that you create regular data backups and store them on remote servers or unplugged storage devices (otherwise ransomware-type programs also encrypt the backups).

How did ransomware infect my computer?

There are several ways to proliferate infections such as Rumba. Most cyber criminals use spam email campaigns, trojans, untrustworthy software download sources, or fake software updaters. They use spam campaigns to proliferate ransomware (or other infections) by sending emails that contain malicious attachments. These attachments are often Microsoft Office documents, PDFs, archive files, executables (.exe files), and so on. Malicious attachments download and install viruses the moment they are opened. Trojans are malicious programs that, when installed, cause chain infections. The main purpose of these programs is to proliferate other infections. Peer-to-peer (P2P) networks (such as torrents, eMule, and so on), freeware download websites, free file hosting websites, unofficial websites and other dubious download sources infect systems by presenting malicious files as legitimate. Using these sources, cyber criminals trick people into downloading and installing viruses. Fake software updaters cause computer infections by exploiting outdated software flaws/bugs or downloading and installing viruses rather than the promised updates, fixes, etc.

Threat Summary:
NameRumba virus
Threat TypeRansomware, Crypto Virus, Files locker
SymptomsCan't open files stored on your computer, previously functional files now have a different extension, for example my.docx.locked. A ransom demanding message is displayed on your desktop. Cyber criminals are asking to pay a ransom (usually in bitcoins) to unlock your files.
Distribution methodsInfected email attachments (macros), torrent websites, malicious ads.
DamageAll files are encrypted and cannot be opened without paying a ransom. Additional password stealing trojans and malware infections can be installed together with a ransomware infection.
Removal

To eliminate Rumba virus our malware researchers recommend scanning your computer with Spyhunter.
▼ Download Spyhunter
Free scanner checks if your computer is infected. To remove malware, you have to purchase the full version of Spyhunter.

How to protect yourself from ransomware infections?

To prevent computer infections with ransomware or other malware, be very cautious when browsing the internet and especially when downloading, installing, or updating software. Never open files (attachments) or links that are presented in emails received from unknown/suspicious email addresses. They are usually irrelevant. Furthermore, download software using official sources and direct download links. Do not use third party downloaders and installers, since they often proliferate rogue applications. Keep software updated using implemented functions or tools provided by the official software developers. Have a reputable anti-virus/anti-spyware suite installed and running - these tools can detect and eliminating threats before any damage is done. If your computer is already infected with Rumba, we recommend running a scan with Spyhunter for Windows to automatically eliminate this ransomware.

Text presented in Rumba ransomware text file ("_openme.txt"):

------------------------ ALL YOUR FILES ARE ENCRYPTED ------------------------

Don't worry, you can return all your files!
All your files documents, photos, databases 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:
hxxps://files.danwin1210.me/uploads/01-2019/Decrypt%20Software%20Overview.avi
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" folder if you don't get answer more than 6 hours.

------------------------------------------------------------------------------


To get this software you need write on our e-mail:
pdfhelp@india.com

Reserve e-mail address to contact us:
pdfhelp@firemail.cc

Your personal ID:
-

Screenshot of files encrypted by Rumba (".rumba" extension):

Files encrypted by Rumba

Update 22 January 2019 Victims have reported that Rumba has infiltrated their computers through software cracking tools used to bypass the activation of popular programs (such as Photoshop, Cubase, and many others), as well as the Windows operating system. This is a common malware distribution technique: criminals attempt to trick users into believing that these tools will enable them to use copyrighted software free of charge. In fact, these tools give no real value, and using them leads to system infections (in this case, infiltration of Rumba ransomware). Moreover, software piracy is a cyber crime - you are stealing from official software developers. The process is also very risky and often leads to computer infections. Therefore, we strongly advise against the use of pirated software.

Screenshot of KMSPico - a Windows operating system activation tool used to spread Rumba ransomware:

KMSpico distributing Rumba ransomware

As with most of ransomware from Djvu family, Rumba also displays a fake Windows update pop-up during the encryption:

Djvu ransomware family fake update

IMPORTANT NOTE! - Ransomware-type infections from Djvu malware family are designed to add a number of entries to the Windows hosts file. The entries contain URLs of various websites, most of which are related to malware removal. This is carried out with the intention of making users unable to access malware security websites and seek help. Our website (PCrisk.com) is also on the list. Removing these entries, however, is simple - you can find detailed instructions in this article (note that, although the steps are shown in the Windows 10 environment, the process is virtually identical on all versions of the Microsoft Windows operating system).

Screenshot of websites added to Windows hosts file:

Tro Ransomware adding websites to Windows Hosts file

Rumba ransomware removal:

Instant automatic removal of Rumba virus: Manual threat removal might be a lengthy and complicated process that requires advanced computer skills. Spyhunter is a professional automatic malware removal tool that is recommended to get rid of Rumba virus. Download it by clicking the button below:
▼ DOWNLOAD Spyhunter By downloading any software listed on this website you agree to our Privacy Policy and Terms of Use. Free scanner checks if your computer is infected. To remove malware, you have to purchase the full version of Spyhunter.

Quick menu:

Step 1

Windows XP and Windows 7 users: Start your computer in Safe Mode. Click Start, click Shut Down, click Restart, click OK. During your computer start process, press the F8 key on your keyboard multiple times until you see the Windows Advanced Option menu, and then select Safe Mode with Networking from the list.

Safe Mode with Networking

Video showing how to start Windows 7 in "Safe Mode with Networking":

Windows 8 users: Start Windows 8 is Safe Mode with Networking - Go to Windows 8 Start Screen, type Advanced, in the search results select Settings. Click Advanced startup options, in the opened "General PC Settings" window, select Advanced startup. Click the "Restart now" button. Your computer will now restart into the "Advanced Startup options menu". Click the "Troubleshoot" button, and then click the "Advanced options" button. In the advanced option screen, click "Startup settings". Click the "Restart" button. Your PC will restart into the Startup Settings screen. Press F5 to boot in Safe Mode with Networking.

Windows 8 Safe Mode with networking

Video showing how to start Windows 8 in "Safe Mode with Networking":

Windows 10 users: Click the Windows logo and select the Power icon. In the opened menu click "Restart" while holding "Shift" button on your keyboard. In the "choose an option" window click on the "Troubleshoot", next select "Advanced options". In the advanced options menu select "Startup Settings" and click on the "Restart" button. In the following window you should click the "F5" button on your keyboard. This will restart your operating system in safe mode with networking.

windows 10 safe mode with networking

Video showing how to start Windows 10 in "Safe Mode with Networking":

Step 2

Log in to the account infected with the Rumba virus. Start your Internet browser and download a legitimate anti-spyware program. Update the anti-spyware software and start a full system scan. Remove all entries detected.

If you cannot start your computer in Safe Mode with Networking, try performing a System Restore.

Video showing how to remove ransomware virus using "Safe Mode with Command Prompt" and "System Restore":

1. During your computer start process, press the F8 key on your keyboard multiple times until the Windows Advanced Options menu appears, and then select Safe Mode with Command Prompt from the list and press ENTER.

Boot your computer in Safe Mode with Command Prompt

2. When Command Prompt mode loads, enter the following line: cd restore and press ENTER.

system restore using command prompt type cd restore

3. Next, type this line: rstrui.exe and press ENTER.

system restore using command prompt rstrui.exe

4. In the opened window, click "Next".

restore system files and settings

5. Select one of the available Restore Points and click "Next" (this will restore your computer system to an earlier time and date, prior to the Rumba ransomware virus infiltrating your PC).

select a restore point

6. In the opened window, click "Yes".

run system restore

7. After restoring your computer to a previous date, download and scan your PC with recommended malware removal software to eliminate any remaining Rumba ransomware files.

To restore individual files encrypted by this ransomware, try using Windows Previous Versions feature. This method is only effective if the System Restore function was enabled on an infected operating system. Note that some variants of Rumba are known to remove Shadow Volume Copies of the files, so this method may not work on all computers.

To restore a file, right-click over it, go into Properties, and select the Previous Versions tab. If the relevant file has a Restore Point, select it and click the "Restore" button.

Restoring files encrypted by CryptoDefense

If you cannot start your computer in Safe Mode with Networking (or with Command Prompt), boot your computer using a rescue disk. Some variants of ransomware disable Safe Mode making its removal complicated. For this step, you require access to another computer.

To regain control of the files encrypted by Rumba, you can also try using a program called Shadow Explorer. More information on how to use this program is available here.

shadow explorer screenshot

To protect your computer from file encryption ransomware such as this, use reputable antivirus and anti-spyware programs. As an extra protection method, you can use programs called HitmanPro.Alert and EasySync CryptoMonitor, which artificially implant group policy objects into the registry to block rogue programs such as Rumba ransomware.

Note that Windows 10 Fall Creators Update includes a "Controlled Folder Access" feature that blocks ransomware attempts to encrypt your files. By default, this feature automatically protects files stored in the Documents, Pictures, Videos, Music, Favorites as well as Desktop folders.

Controll Folder Access

Windows 10 users should install this update to protect their data from ransomware attacks. Here is more information on how to get this update and add an additional protection layer from ransomware infections.

HitmanPro.Alert CryptoGuard - detects encryption of files and neutralises any attempts without need for user-intervention:

hitmanproalert ransomware prevention application

Malwarebytes Anti-Ransomware Beta uses advanced proactive technology that monitors ransomware activity and terminates it immediately - before reaching users' files:

malwarebytes anti-ransomware

  • The best way to avoid damage from ransomware infections is to maintain regular up-to-date backups. More information on online backup solutions and data recovery software Here.

Other tools known to remove Rumba ransomware:

About the author:

Tomas Meskauskas

Tomas Meskauskas - expert security researcher, professional malware analyst.

I am passionate about computer security and technology. I have an experience of over 10 years working in various companies related to computer technical issue solving and Internet security. I have been working as an author and editor for pcrisk.com since 2010. Follow me on Twitter and LinkedIn to stay informed about the latest online security threats. Contact Tomas Meskauskas.

PCrisk security portal is brought by a company RCS LT. Joined forces of security researchers help educate computer users about the latest online security threats. More information about the company RCS LT.

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Removal Instructions in other languages
Malware activity

Global virus and spyware activity level today:

Medium threat activity
Medium

Increased attack rate of infections detected within the last 24 hours.

QR Code
Rumba virus QR code
A QR code (Quick Response Code) is a machine-readable code which stores URLs and other information. This code can be read using a camera on a smartphone or a tablet. Scan this QR code to have an easy access removal guide of Rumba virus on your mobile device.
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