THREAT REMOVAL

RensenWare Virus – Remove It and Restore .RENSENWARE Files

This article will aid you in removing the RensenWare ransomware absolutely. Follow the ransomware removal instructions given at the bottom of the article.

The RensenWare virus is an encrypting ransomware type. The ransomware will lock your files and place a secondary extension to them, which is .RENSENWARE. After your computer gets infected, the RensenWare cryptovirus will display a window with a ransom message. That message shows right after the file-encryption process is completed and instead of money, requires you to reach an insanely huge score in the game “Touhou Seirensen 12 ~ Undefined Fantastic Object”. Read on to see how you could decrypt your files.

Threat Summary

NameRensenWare
TypeRansomware, Cryptovirus
Short DescriptionThe ransomware virus will encrypt your files and also put a lock screen window up.
SymptomsThe ransomware will display a window containing a ransom note and will encrypt files while placing the .RENSENWARE extension to them.
Distribution MethodSpam Emails, Email Attachments
Detection Tool See If Your System Has Been Affected by malware

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User ExperienceJoin Our Forum to Discuss RensenWare.
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.

RensenWare Virus – Delivery

The RensenWare virus might deliver its infection through different ways. The payload file which executes the malicious script for this ransomware, that in turn infects your computer system, is circling around the Internet. Malware researchers have found an executable file that delivers the payload. You can see the detections of various security vendors for that recently found executable by checking the screenshot from the VirusTotal service right here:

The RensenWare virus could also deliver its payload file on social media sites and file-sharing networks. Freeware applications which are found on the Web could be presented as helpful but at the same time could be hiding the malicious script for this cryptovirus. Don’t be opening files right when you have downloaded them, especially if they come from sources such as suspicious links or emails. Instead, you should scan them beforehand with a security tool, while also checking the sizes and signatures of those files for anything that seems unusual. You should give the tips for ransomware prevention a read, found on our forums.

RensenWare Virus – Further Details

RensenWare is a cryptovirus of the ransomware variety. Once your files get encrypted by this latest variant, they will receive the .RENSENWARE extension. The ransom isn’t money, but instead, you as a victim are required to reach an insanely huge score in the game “Touhou Seirensen 12 ~ Undefined Fantastic Object”. In the screenshot down here you can see how that game looks like:

The ransom message will pop up inside a window screen after the encryption process is finished. That message contains instructions on how you might get your files back. The note of RensenWare opens in a lock screen. You can see the note in the snapshot provided right here:

The ransom note inside that window reads the following:

Rensenware WARNING!

WARNING!

Your syste have been encrypted by RensenWare

What the HELL is it?

Minamitsu “The Captain” Murasa encrypted your precious data like documents, musics, pictures, and some kinda project files. it can’t be recovered without this application because they are encrypted with highly strong encryption algorithm, using random key.

How can I recover my files?

That’s easy. You just play TH12 ~ Undefined Fantastic Object and score over 0.2 billion in LUNATIC level. this application will detect TH12 process and score automatically. DO NOT TRY CHEATING OR TEMRMINATE THIS APPLICATION IF YOU DON’T WANT TO BLOW UP THE ENCRYPTION KEY!

As clearly seen from the ransom message above, the developer of the RensenWare cryptovirus wants the ransom to be paid out by playing a game and reaching an insane amount of points. This particular ransomware is set as a joke, but it got leaked to the Internet by mistake. Keep on reading and see what could be done about decrypting your files.

RensenWare Virus – Encryption Process

RensenWare ransomware is set to encrypt all files which have the following extensions:

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

The encryption algorithm is discovered to be AES 256-bit by malware researchers. The extension which will be given to files that have been encrypted is .RENSENWARE and it will be appended as a secondary one, keeping the original extension of the files, including their file names.

Don’t worry about your computer system being infected or playing the game to unlock your files. Although the ransomware threatens that if you somehow cheat your data will be irrevocably lost, but no such system is actually implemented. All of your data files can be recovered with the help of a tool that lies about the game’s score, by placing the right amount, so the decryption process can begin. That tool is called rensenWare_forcer and it comes from the original developer with a note of apology as seen below:

If the tool didn’t decrypt some of the files, you would see an option to try and manually decrypt the rest:

Be warned, as the ransomware developer says to be extremely careful when tampering with the ransomware depending on what version it is, as quoted below:

DO NOT TRY TO OTHER BUILDS OF RENSENWARE IF YOU ARE NOT SURE IT’S INITIAL VERSION OF RENSENWARE. INITIAL VERSION OF RENSENWARES DOES NOT HAVE MEMORY MANIPULATION DETECTING LOGIC, BUT OTHER BUILDS MAY HAVE IT.

The original version of the ransomware was intended as a joke, but other ones might be created as the source code of the virus was leaked.

Remove RensenWare Virus and Restore .RENSENWARE Files

If your computer got infected with the RensenWare virus, you should have a bit of experience in removing malware. You should get rid of this ransomware as quickly as possible before it can have the chance to spread further and infect other computers. You should remove the ransomware and follow the step-by-step instructions guide provided below.

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Berta Bilbao

Berta is a dedicated malware researcher, dreaming for a more secure cyber space. Her fascination with IT security began a few years ago when a malware locked her out of her own computer.

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Attention! SensorsTechForum strongly recommends that all malware victims should look for assistance only by reputable sources. Many guides out there claim to offer free recovery and decryption for files encrypted by ransomware viruses. Be advised that some of them may only be after your money.

As a site that has been dedicated to providing free removal instructions for ransomware and malware since 2014, SensorsTechForum’s recommendation is to only pay attention to trustworthy sources.

How to recognize trustworthy sources:

  • Always check "About Us" web page.
  • Profile of the content creator.
  • Make sure that real people are behind the site and not fake names and profiles.
  • Verify Facebook, LinkedIn and Twitter personal profiles.


OFFER

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We recommend you to download SpyHunter and run free scan to remove all virus files on your PC. This saves you hours of time and effort compared to doing the removal yourself.
SpyHunter 5 free remover allows you, subject to a 48-hour waiting period, one remediation and removal for results found. Read EULA and Privacy Policy


Windows Mac OS X

How to Remove RensenWare from Windows.


Step 1: Boot Your PC In Safe Mode to isolate and remove RensenWare

OFFER

Manual Removal Usually Takes Time and You Risk Damaging Your Files If Not Careful!
We Recommend To Scan Your PC with SpyHunter

Keep in mind, that SpyHunter’s scanner is only for malware detection. If SpyHunter detects malware on your PC, you will need to purchase SpyHunter's malware removal tool to remove the malware threats. Read our SpyHunter 5 review. Click on the corresponding links to check SpyHunter's EULA, Privacy Policy and Threat Assessment Criteria

1. Hold Windows key() + R


2. The "Run" Window will appear. In it, type "msconfig" and click OK.


3. Go to the "Boot" tab. There select "Safe Boot" and then click "Apply" and "OK".
Tip: Make sure to reverse those changes by unticking Safe Boot after that, because your system will always boot in Safe Boot from now on.


4. When prompted, click on "Restart" to go into Safe Mode.


5. You can recognise Safe Mode by the words written on the corners of your screen.


Step 2: Uninstall RensenWare and related software from Windows

Here is a method in few easy steps that should be able to uninstall most programs. No matter if you are using Windows 10, 8, 7, Vista or XP, those steps will get the job done. Dragging the program or its folder to the recycle bin can be a very bad decision. If you do that, bits and pieces of the program are left behind, and that can lead to unstable work of your PC, errors with the file type associations and other unpleasant activities. The proper way to get a program off your computer is to Uninstall it. To do that:


1. Hold the Windows Logo Button and "R" on your keyboard. A Pop-up window will appear.


2. In the field type in "appwiz.cpl" and press ENTER.


3. This will open a window with all the programs installed on the PC. Select the program that you want to remove, and press "Uninstall"
Follow the instructions above and you will successfully uninstall most programs.


Step 3: Clean any registries, created by RensenWare on your computer.

The usually targeted registries of Windows machines are the following:

  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce

You can access them by opening the Windows registry editor and deleting any values, created by RensenWare there. This can happen by following the steps underneath:

1. Open the Run Window again, type "regedit" and click OK.


2. When you open it, you can freely navigate to the Run and RunOnce keys, whose locations are shown above.


3. You can remove the value of the virus by right-clicking on it and removing it.
Tip: To find a virus-created value, you can right-click on it and click "Modify" to see which file it is set to run. If this is the virus file location, remove the value.

IMPORTANT!
Before starting "Step 4", please boot back into Normal mode, in case you are currently in Safe Mode.
This will enable you to install and use SpyHunter 5 successfully.

Step 4: Scan for RensenWare with SpyHunter Anti-Malware Tool

1. Click on the "Download" button to proceed to SpyHunter's download page.


It is recommended to run a scan before purchasing the full version of the software to make sure that the current version of the malware can be detected by SpyHunter. Click on the corresponding links to check SpyHunter's EULA, Privacy Policy and Threat Assessment Criteria.


2. After you have installed SpyHunter, wait for it to update automatically.

SpyHunter5-update-2018


3. After the update process has finished, click on the 'Malware/PC Scan' tab. A new window will appear. Click on 'Start Scan'.

SpyHunter5-Free-Scan-2018


4. After SpyHunter has finished scanning your PC for any files of the associated threat and found them, you can try to get them removed automatically and permanently by clicking on the 'Next' button.

SpyHunter-5-Free-Scan-Next-2018

If any threats have been removed, it is highly recommended to restart your PC.

Step 5 (Optional): Try to Restore Files Encrypted by RensenWare.

Ransomware infections and RensenWare aim to encrypt your files using an encryption algorithm which may be very difficult to decrypt. This is why we have suggested a data recovery method that may help you go around direct decryption and try to restore your files. Bear in mind that this method may not be 100% effective but may also help you a little or a lot in different situations.

1. Download the reccomended Data Recovery software by clicking on the link underneath:

Simply click on the link and on the website menus on top, choose Data Recovery - Data Recovery Wizard for Windows or Mac (depending on your OS), and then download and run the tool.


Windows Mac OS X

Get rid of RensenWare from Mac OS X.


Step 1: Uninstall RensenWare and remove related files and objects

OFFER
Manual Removal Usually Takes Time and You Risk Damaging Your Files If Not Careful!
We Recommend To Scan Your Mac with SpyHunter for Mac
Keep in mind, that SpyHunter for Mac needs to purchased to remove the malware threats. Click on the corresponding links to check SpyHunter’s EULA and Privacy Policy


1. Hit the ⇧+⌘+U keys to open Utilities. Another way is to click on “Go” and then click “Utilities”, like the image below shows:


2. Find Activity Monitor and double-click it:


3. In the Activity Monitor look for any suspicious processes, belonging or related to RensenWare:

Tip: To quit a process completely, choose the “Force Quit” option.


4. Click on the "Go" button again, but this time select Applications. Another way is with the ⇧+⌘+A buttons.


5. In the Applications menu, look for any suspicious app or an app with a name, similar or identical to RensenWare. If you find it, right-click on the app and select “Move to Trash”.


6: Select Accounts, after which click on the Login Items preference. Your Mac will then show you a list of items that start automatically when you log in. Look for any suspicious apps identical or similar to RensenWare. Check the app you want to stop from running automatically and then select on the Minus (“-“) icon to hide it.


7: Remove any left-over files that might be related to this threat manually by following the sub-steps below:

  • Go to Finder.
  • In the search bar type the name of the app that you want to remove.
  • Above the search bar change the two drop down menus to “System Files” and “Are Included” so that you can see all of the files associated with the application you want to remove. Bear in mind that some of the files may not be related to the app so be very careful which files you delete.
  • If all of the files are related, hold the ⌘+A buttons to select them and then drive them to “Trash”.

In case you cannot remove RensenWare via Step 1 above:

In case you cannot find the virus files and objects in your Applications or other places we have shown above, you can manually look for them in the Libraries of your Mac. But before doing this, please read the disclaimer below:

Disclaimer! If you are about to tamper with Library files on Mac, be sure to know the name of the virus file, because if you delete the wrong file, it may cause irreversible damage to your MacOS. Continue on your own responsibility!

1: Click on "Go" and Then "Go to Folder" as shown underneath:

2: Type in "/Library/LauchAgents/" and click Ok:

3: Delete all of the virus files that have similar or the same name as RensenWare. If you believe there is no such file, do not delete anything.

You can repeat the same procedure with the following other Library directories:

→ ~/Library/LaunchAgents
/Library/LaunchDaemons

Tip: ~ is there on purpose, because it leads to more LaunchAgents.


Step 2: Scan for and remove malware from your Mac

When you are facing problems on your Mac as a result of unwanted scripts, programs and malware, the recommended way of eliminating the threat is by using an anti-malware program. Combo Cleaner offers advanced security features along with other modules that will improve your Mac’s security and protect it in the future.


Step 3 (Optional): Try to Restore Files Encrypted by RensenWare on your Mac.

Ransomware for Mac RensenWare aims to encode all your files using an encryption algorithm which may be very difficult to decode, unless you pay money.

This is why we have suggested a data recovery method that may help you go around direct decryption and try to restore your files, but only in some cases. Bear in mind that this method may not be 100% effective but may also help you a little or a lot in different situations.

1. Download the recommended Data Recovery Mac app by clicking on the link underneath:


RensenWare FAQ

What is RensenWare ransomware and how does it work?

RensenWare is a ransomware infection - the malicious software that enters your computer silently and blocks either access to the computer itself or encrypt your files.

Many ransomware viruses use sophisticated encryption algorithm how to make your files inaccessible. The goal of ransomware infections is to demand that you pay a ransom payment to get access to your files back.

How does RensenWare ransomware infect my computer?

Via several ways.RensenWare Ransomware infects computers by being sent via phishing e-mails, containing virus attachment.

This attachment is usually masked as an important document, like an invoice, bank document or even a plane ticket and it looks very convincing to users.

After you download and execute this attachment, a drive-by download occurs and your computer is infected with the ransomware virus.

Another way, you may become a victim of RensenWare is if you download a fake installer, crack or patch from a low reputation website or if you click on a virus link. Many users report getting a ransomware infection by downloading torrents.

How to open .RensenWare files?

You can't. At this point the .RensenWare files are encrypted. You can only open them once they are decrypted.

Decryptor did not decrypt my data. What now?

Do not panic and backup the files. If a decryptor did not decrypt your .RensenWare files successfully, then do not despair, because this virus is still new.

One way to restore files, encrypted by RensenWare ransomware is to use a decryptor for it. But since it's a new virus, advised that the decryption keys for it may not be out yet and available to the public. We will update this article and keep you posted as soon as this decryptor is released.

How Do I restore ".RensenWare" files (Other Methods)?

Yes, sometimes files can be restored. We have suggested several file recovery methods that could work if you want to restore .RensenWare files.

These methods are in no way 100% guarantee that you will be able to get your files back. But if you have a backup, your chances of success are much greater.

How do I get rid of RensenWare ransomware virus?

The safest way and the most efficient one for the removal of this ransomware infection is the use a professional anti malware software. It will scan for and locate RensenWare ransomware and then remove it without causing any additional harm to your important .RensenWare files.

Also, keep in mind that viruses like RensenWare ransomware also install Trojans and keyloggers that can steal your passwords and accounts. Scanning your computer with an anti-malware software will make sure that all of these virus components are removed and your computer is protected in the future.

What to Do If nothing works?

There is still a lot you can do. If none of the above methods seem to work for you, then try these methods:

  • Try to find a safe computer from where you can can login on your own line accounts like One Drive, iDrive, Google Drive and so on.
  • Try to contact your friends, relatives and other people so that they can check if they have some of your important photos or documents just in case you sent them.
  • Also, check if some of the files that were encrypted it can be re-downloaded from the web.
  • Another clever way to get back some of your files is to find another old computer, a flash drive or even a CD or a DVD where you may have saved your older documents. You might be surprised what will turn up.
  • You can also go to your email account to check if you can send any attachments to other people. Usually what is sent the email is saved on your account and you can re-download it. But most importantly, make sure that this is done from a safe computer and make sure to remove the virus first.

More tips you can find on our forums, where you can also asks any questions about your ransomware problem.

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