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KillRabbit ransomware. How to remove? (Uninstall guide)

removal by Olivia Morelli - - | Type: Ransomware

KillRabbit ransomware – a sneaky file-encrypting virus which adds the .killrabbit appendix to corrupted files

KillRabbit ransomware
KillRabbit ransomware - a serious virus which uses the AES-256 encryption algorithm to lock up files.

KillRabbit ransomware is another dangerous cryptovirus which targets victim's documents right after infiltrating the system via spam. This sneaky threat shows as killrabbitV2-release.bin file which is around 986 KB size. Once installed, ransomware starts encrypting important documents and marks them by adding the .killrabbit file extension to each corrupted file. For example, if you have a file named beautifulday.jpg, the KillRabbit virus will turn it into beautifulday.jpg.killrabbit. Note that this is a serious sign showing that you are infected. After that, files become unusable and can be recovered only after adding the decryption key which is saved on hackers' servers and can be obtained for a certain price which varies from $100 to several hundred dollars. 

Name KillRabbit
Type Ransomware
Danger level High. Invades the system and blocks files by making them unusable
Shows as .killrabbitV2-release.bin
Appendix .killrabbit
Purpose Encrypts important data, displays a ransom note, urges victims to pay a certain price for the decryption tool in order to get corrupted files back
Elimination For such case you need to download and install anti-malware. We recommend Reimage

Paying the demanded ransom is not the best choice when dealing with KillRabbit ransomware. According to malware experts[1], cybercriminals usually leave victims scammed as they seek only for money. Keep in mind that the most of such transfers remain completely secret as they usually involve Bitcoin or another type of cryptocurrency.[2] Instead of supporting hackers and their dirty works, you should opt for legitimate data recovery options.

Kill Rabbit ransomware is typically using the AES-256 encryption algorithm[3] to lock up important user's data. Such an algorithm is used to encrypt data with the unique codes that are different for each of virus victims. This is the main reason, why data decryption is almost impossible, even if it is performed by highly-experienced IT experts. The easiest way to recover files encrypted by .KillRabbit file virus is to use backups. That's why you should take care of them without wasting your time.

The virus is typically encrypting these files:

  • Pictures;
  • Videos;
  • Audios;
  • Databases;
  • Etc.

If you spot these types of files having the .killrabbit appendix added to their names, be quick to remove KillRabbit virus from your computer system. For such purpose, we suggest using Reimage as professional and trustworthy help is required to detect each of the infected files.

After you perform the KillRabbit ransomware removal, you can try using some third-party software for data recovery. The methods are shown below this article. Another piece of advice would be to prepare your data for the future. You never know when another virus might occur in your computer system. For such reason, we recommend storing valuable files on external devices, for example, a USB drive.

Avoid spam emails to prevent aggressive ransomware

Spam emails are the most common ransomware distribution source. Usually, when someone gets the computer infected with a malware form such as ransomware, there is a high possibility that such damaging content came from a phishing message. By using exploit kits and similar techniques, cybercrooks drop such messages to numerous users that, once opened, infect systems and make files that are saved there unusable.

Even if the email seems safe and legitimate, make sure you double check the sender's address, message body, company's name, etc. If you are not expecting anything important at the moment, better delete the message to stay safe. Otherwise, check the file by hovering the mouse over it to see what kind of file it is.

Another recommendation for those who are willing to avoid ransomware would be to install professional antivirus protection if you do not have one already running on your computer. Choose a trustworthy one so that it would work and protect your system properly. Make sure that all updates are done from time to time.

To get rid of the nasty KillRabbit virus perform our detailed steps

To remove KillRabbit ransomware from the system, you need to download and install reputable anti-malware. We suggest picking from one of these programs: Reimage, Malwarebytes Malwarebytes, or Plumbytes Anti-MalwareNorton Internet Security. Make sure you avoid manual removal as there is a high chance to lead your computer into more damage.

Programs that are given above will guide you thru the whole removal process. All you need to do is to follow their recommendation. After you perform the KillRabbit removal, you can move on to the recovery of your files. Options that are offered by our cybersecurity experts are given below.

Finally, be sure to do one more step and take care fo your files to prevent their loss in the future. Our advice would be to take care of the backups of your most important data by saving these extra copies on an external hard drive, the cloud or similar devices. 

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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 KillRabbit ransomware. 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.
Press mentions on Reimage
Alternate Software
Plumbytes Anti-Malware
We have tested Plumbytes Anti-Malware's efficiency in removing KillRabbit ransomware (2018-08-09)
Malwarebytes
We have tested Malwarebytes's efficiency in removing KillRabbit ransomware (2018-08-09)
Hitman Pro
We have tested Hitman Pro's efficiency in removing KillRabbit ransomware (2018-08-09)
Malwarebytes
We have tested Malwarebytes's efficiency in removing KillRabbit ransomware (2018-08-09)

To remove KillRabbit virus, follow these steps:

Remove KillRabbit using Safe Mode with Networking

Use Safe Mode with Networking to disable the virus and run a scan for KillRabbit removal:

  • 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 KillRabbit

    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 KillRabbit removal.

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

Remove KillRabbit using System Restore

Try activating the System Restore feature to prevent malfunction of your scanner. Make sure you repeat the scan when on normal mode.

  • 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 KillRabbit. 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 KillRabbit removal is performed successfully.

Bonus: Recover your data

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

If you want to restore important data, we advise looking thru the following methods and picking the most suitable one for you.

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

Try Data Recovery Pro to recover encrypted files

This method might be helpful for data restoring. Follow the instructions carefully.

You can try using Windows Previous Versions feature to get back files encrypted by .killrabbit file virus:

If you have enabled the System Restore feature before the cyber attack, you might have a chance of restoring your important data.

  • Find an encrypted file you need to restore and right-click on it;
  • Select “Properties” and go to “Previous versions” tab;
  • Here, check each of available copies of the file in “Folder versions”. You should select the version you want to recover and click “Restore”.

Give a try with Shadow Explorer:

This kind of method might seem helpful, however, it will not work if the virus deleted Shadow Volume Copies of corrupted files.

  • 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.

There is no official KillRabit decryptor available yet.

Finally, you should always think about the protection of crypto-ransomwares. In order to protect your computer from KillRabbit and other ransomwares, use a reputable anti-spyware, such as Reimage, Malwarebytes Malwarebytes or Plumbytes Anti-MalwareNorton Internet Security

About the author

Olivia Morelli
Olivia Morelli - Ransomware analyst

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