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RensenWare ransomware virus. How to remove? (Uninstall guide)

removal by Jake Doevan - - | Type: Ransomware
12

Instead of asking for money, Rensenware virus wants you to play a little game

RensenWare virus can be called a high quality troll, or a program that actually makes fun of a victim without any evil intentions. Unlike other viruses, it doesn’t demand money. It turns out, the author of it did not mean to infect computers in order to extort people[1]. RensenWare ransomware asks the victim to complete one task in order to recover all encrypted files – to play Undefined Fantastic Object game[2] and score at least 0.2 billion in LUNATIC level. The program is set to detect the target score and decrypt victim’s files automatically. Once installed and run, the ransomware launches a program window called Rensenware WARNING!. At the same time, the virus scans the system for target files and locks them using AES-256 encryption. Each encrypted file gets a .RENSENWARE extension, which signalizes that the file has been affected. The initial virus version targets files that have one of the following file extensions:

.png, .pdf, .hwp, .frm, .psd, .cs, .c, .cpp, .vb, .bas, .mp3, .wav, .flac, .gif, .doc, .docx, .ppt, .pptx, .js, .avi, .mp4, .zip, .rar, .mkv, .alz, .egg, .7z, .raw, .xls, .xlsx, .jpg, .txt.

Luckily, the virus doesn’t delete Volume Shadow Copies, in other words, it doesn’t try to block alternative data recovery methods. According to the message displayed by the virus, the victim should do himself a favor and not try to cheat; otherwise, the encryption key will be “blown up.” Researchers reported that it is entirely safe to cheat so that users can edit their score in memory. Besides, it seems that the developer of this ransomware didn’t mean to distribute the ransomware on a global scale, and he has already released a rensenWare_forcer program[3], which helps the victim “fake” the score in the game and consequently restores encrypted files. On top of that, the developer of the virus added an apology, in which he says that the program was made “for a joke.” A fun fact is, the developer of RensenWare accidentally infected his own computer with the virus[4], but, of course, data recovery wasn’t an issue for him.

It turns out that Rensenware’s source code was published on GitHub and became available to everyone until malware researchers detected it. After some time, the developer took down the code and apologized, however, it is a well-known fact that open-source ransomware is a bad thing[5] and criminals are quick to exploit it. Therefore, if you accidentally infected your computer with a Rensenware variant that asks you to pay a ransom, it means that you were attacked by a Rensenware spin-off. In such case, we highly recommend you to remove the malware from the system. For Rensenware removal, we suggest using Reimage or another reliable software.

How can I get infected with ransomware viruses?

Ransomware viruses can be distributed in a variety of ways, but the most popular ones so far are spam and malvertising. Considering that the discussed virus was created for fun and not for malevolent purposes, we doubt that you will get infected with it. However, open-source ransomware can turn into an extortion tool very easily. If you want to prevent such viruses from infecting your PC, protect it with the anti-malware program and create a data backup. Ideally, update your programs regularly and stay away from suspicious content online. Refrain yourself from opening shady-looking emails and do not install any pieces of software from websites that you can’t trust.

How to remove Rensenware ransomware from the system?

The program we suggested earlier should remove RensenWare virus with ease. Speaking of ransomware, we want to remind you that these viruses typically are extremely dangerous and removing them is a hard thing to do. While Rensenware removal shouldn’t cause a lot of trouble to you, other viruses are far more sophisticated and deleting them takes a lot of time and patience. Below, you can find a tutorial that explains how to remove a ransomware virus. We added data recovery methods in case you were infected by a malicious version of Rensenware program that demands money.

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What to do if failed?
If you failed to remove infection using Reimage, submit a question to our support team and provide as much details as possible.
Reimage is recommended to uninstall RensenWare ransomware virus. Free scanner allows you to check whether your PC is infected or not. If you need to remove malware, you have to purchase the licensed version of Reimage malware removal tool.
More information about this program can be found in Reimage review.
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Manual RensenWare virus Removal Guide:

Remove RensenWare using Safe Mode with Networking

If you were infected with a critical and updated Rensenware version that asks you to pay a ransom, restart your PC this way and run an anti-malware program to delete the virus from the system:

  • Step 1: Reboot your computer to Safe Mode with Networking

    Windows 7 / Vista / XP
    1. Click Start Shutdown Restart OK.
    2. When your computer becomes active, start pressing F8 multiple times until you see the Advanced Boot Options window.
    3. Select Safe Mode with Networking from the list Select 'Safe Mode with Networking'

    Windows 10 / Windows 8
    1. Press the Power button at the Windows login screen. Now press and hold Shift, which is on your keyboard, and click Restart..
    2. Now select Troubleshoot Advanced options Startup Settings and finally press Restart.
    3. Once your computer becomes active, select Enable Safe Mode with Networking in Startup Settings window. Select 'Enable Safe Mode with Networking'
  • Step 2: Remove RensenWare

    Log in to your infected account and start the browser. Download Reimage or other legitimate anti-spyware program. Update it before a full system scan and remove malicious files that belong to your ransomware and complete RensenWare removal.

If your ransomware is blocking Safe Mode with Networking, try further method.

Remove RensenWare using System Restore

  • Step 1: Reboot your computer to Safe Mode with Command Prompt

    Windows 7 / Vista / XP
    1. Click Start Shutdown Restart OK.
    2. When your computer becomes active, start pressing F8 multiple times until you see the Advanced Boot Options window.
    3. Select Command Prompt from the list Select 'Safe Mode with Command Prompt'

    Windows 10 / Windows 8
    1. Press the Power button at the Windows login screen. Now press and hold Shift, which is on your keyboard, and click Restart..
    2. Now select Troubleshoot Advanced options Startup Settings and finally press Restart.
    3. Once your computer becomes active, select Enable Safe Mode with Command Prompt in Startup Settings window. Select 'Enable Safe Mode with Command Prompt'
  • Step 2: Restore your system files and settings
    1. Once the Command Prompt window shows up, enter cd restore and click Enter. Enter 'cd restore' without quotes and press 'Enter'
    2. Now type rstrui.exe and press Enter again.. Enter 'rstrui.exe' without quotes and press 'Enter'
    3. When a new window shows up, click Next and select your restore point that is prior the infiltration of RensenWare. After doing that, click Next. When 'System Restore' window shows up, select 'Next' Select your restore point and click 'Next'
    4. Now click Yes to start system restore. Click 'Yes' and start system restore
    Once you restore your system to a previous date, download and scan your computer with Reimage and make sure that RensenWare removal is performed successfully.

Bonus: Recover your data

Guide which is presented above is supposed to help you remove RensenWare from your computer. To recover your encrypted files, we recommend using a detailed guide prepared by 2-spyware.com security experts.

In case your computer was infected with a malicious version of Rensenware software, you can use data backups or one of the following methods to restore your files.

If your files are encrypted by RensenWare, you can use several methods to restore them:

Data Recovery Pro trick

Data Recovery Pro is extremely useful software that helps to restore files once they get corrupted or modified in a bad way. You can use it if your files were encrypted and became inaccessible:

ShadowExplorer help

You can restore files using ShadowExplorer software in cases when the virus doesn’t delete them.

  • Download Shadow Explorer (http://shadowexplorer.com/);
  • Follow a Shadow Explorer Setup Wizard and install this application on your computer;
  • Launch the program and go through the drop down menu on the top left corner to select the disk of your encrypted data. Check what folders are there;
  • Right-click on the folder you want to restore and select “Export”. You can also select where you want it to be stored.

Finally, you should always think about the protection of crypto-ransomwares. In order to protect your computer from RensenWare and other ransomwares, use a reputable anti-spyware, such as Reimage, Plumbytes Anti-MalwareWebroot SecureAnywhere AntiVirus or Malwarebytes Anti Malware

About the author

Jake Doevan
Jake Doevan - Computer technology expert

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References


  • kyoto

    what a funny ransomware!

  • JohnnCash

    Did anyone actually score 0.2 billion????

    • Alas

      I bet you would need to spend days trying to achieve that goal lol. The developer got infected with this ransomware himself, theres a screenshot on twitter!