KeRanger virus. How to remove? (Uninstall guide)

removal by Lucia Danes - - | Type: Ransomware
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KeRanger virus – the first OS X ransomware

KeRanger virus is a malicious ransomware-type program, which is set to infect Apple OS X. While this cyber threat is not the first one, which is capable of infecting OS X, it is clear that widely discussed predictions about the immunity of this operating system to ransomware viruses must stop. Just like cyber threats that are designed to encrypt data on Windows operating system (Cryptowall virus, CryptoWall 3.0, Locky, TeslaCrypt and others), KeRanger ransomware is capable of finding the most valuable files and encrypt them. No matter that this virus showed up only on 4 March 2016, it is believed that there are hundreds of Apple users who have already been affected by it.

KeRanger virus spreads in a different way than previously-seen ransomware viruses. According to the latest news, people got infected with this threat thru the latest update of Transmission software, which is a popular BitTorrent client of this software. However, there is no guarantee that it won’t start affecting Mac users thru spam emails, just like the rest of ransomware threats do. When you are infected with KeRanger, you cannot notice it for three days. This amount of time is used by this ransomware to connect with the command control servers using the Tor network. Once it does that, it checks the affected PC system for victim’s files and encrypts them with 2048-bit RSA algorithm. As a rule, people start seeing a huge ransom note when they try to open one of the affected files. Typically, KeRanger virus informs its victim that files are encrypted and that the only way to decrypt them is to pay a ransom, which is 1 Bitcoin or $400. If you can see such warning message on your desktop, you must disconnect your computer from the net to block this virus and the encryption of your data. Of course, the next step should be to remove KeRanger from the system.

The picture showing Keranger ransomware

We do not recommend you to pay the ransom because that’s how these hackers are capable of inventing new viruses each day. Besides, you can never be sure that this payment will help you to recover your files. It might be that the decryption key is worth nothing, and you can be left with no files on your computer. If you are infected with KeRanger, the first thing that you must do is to disconnect your computer from the Internet and prevent the loss of the data, which hasn’t been encrypted yet. The next of your steps should be the KeRanger removal. You can use Webroot SecureAnywhere AntiVirus for that. In case you discovered the similar ransomware on Windows OS, you should run Reimage. However, keep in mind that deleting the ransomware from your computer will not decrypt your files, and they will remain permanently locked. You can recover your files from a backup if you have one since it is by far the most reliable method of keeping your files safe. You can use USB, CD/DVD or external hard drive for this purpose.

How is this virus distributed?

Not a lot is yet known about the-the distribution of this new ransomware virus. However, it has already been announced that the latest update for Transmission software is most likely the one that is used to spread this ransomware. We hope that this update was fixed right after discovering that it is infected, but you can never be sure about that. So, beware that there is no guarantee that the popular freeware you are about to install is safe. To protect yourself, you should use only official sources when installing programs on your device and also keep an updated security software to prevent infiltration of malicious files. Keep in mind that you can never be sure about what hackers are prepared for the next stage and, once you are infected, KeRanger removal will not help you to get your files back.

How can you delete KeRanger virus from your computer?

Even though there is no way to remove KeRanger from your computer without losing your data, you should still consider removing the virus itself along with its related components to avoid additional loss of your important data. Also, almost each of cyber threats can be used for infecting a computer with additional malware in the future, so you should remove it without wasting your time. For this process, a reliable security tool. In this case, we recommend Webroot SecureAnywhere AntiVirus or similar security software, which was designed for Mac OS X. If this virus has affected your Windows OS, you can try Reimage. Finally, if the virus is blocking the antivirus software and you cannot get it running, you should follow our detailed instructions provided below, to ensure the most effective KeRanger removal.

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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 KeRanger 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.

More information about this program can be found in Reimage review.

Manual KeRanger virus Removal Guide:

Remove KeRanger using Safe Mode with Networking

Reimage is a tool to detect malware.
You need to purchase Full version to remove infections.
More information about Reimage.

  • 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 KeRanger

    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 KeRanger removal.

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

Remove KeRanger using System Restore

Reimage is a tool to detect malware.
You need to purchase Full version to remove infections.
More information about Reimage.

  • 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 KeRanger. 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 KeRanger removal is performed successfully.

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

About the author

Lucia Danes
Lucia Danes - Virus researcher

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  • Petergr

    You are joking. Mac virus???

  • mikamima

    It seems that its real..

  • weed

    I was infected my KeRanger virus several days ago! Its real!

  • TiffanyWilson

    Help me to remove KeRanger virus from my computer!!!

  • TrevisT

    Mac are vulnerable just like Windows…