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

removal by Lucia Danes - - | Type: Ransomware
12

What is known about Kolobo ransomware virus?

Kolobo virus is a variant of Gingerbread ransomware which has been spotted in November 2016. This trojan mostly spreads via malicious email attachments. Thus, when victims click on the infected file attached to the email, the virus is dropped and executed in the system. As soon as it gets inside, it starts scanning the system looking for the targeted files. The virus aims at Microsoft Office documents, PDF files, various pictures, audio and video files, databases and other popular files. Kolobo ransomware encrypts files using XOR[1] and RSA[2] algorithms and appends a .kolobocheg@aol.com file extension to each targeted file. Since then users cannot open and use their records. However, it’s not the only way how the ransomware scares victims. It delivers a ransom, not on the lock screen. Usually, file-encrypting viruses drop a .html or .txt file with instructions how to pay the ransom[3]. However, this one decided to cause more chaos. Indeed, lock screen might terrify many people because they lose access to their computers. Though, the ransom-demanding message there is unique and creative. Kolobo ransomware virus uses the same Russian ransom note delivered by the Gingerbread. You can read the translation below:

The Gingerbread pie left grandmother and grandfather and found out
that he doesn’t have money for an apartment! He tried to find a solution but couldn’t.
So, he needs your help! Help the Gingerbread and he will help you return your files,
send the following information including the identification: Mail: kolobocheg@ао1.com Identification: k1
For additional information – http://www.filesencoded.com’

No one can argue that developers of the ransomware take their highly profitable job seriously.[4] However, they do not lack creativity as well. Indeed, the developers of the Kolobo virus has a vivid imagination and try to swindle the money from computer users in a creative way. However, we do not recommend contacting the hacker via provided email address. Obviously, the author of the virus offers a risky deal – to transfer some bitcoins in order to get back access to the computer and decrypt the files. No matter how generous you are and how much do you want to help people behind the virus, you should not follow their orders. Remove Kolobo from the computer as soon as it delivers its pity message. If you have data backups, you will be able to restore all your files after virus elimination. If you do not have them, you might be in trouble, but there’s a chance for you too. At the end of the article, you will find our prepared additional data recovery methods that might help to rescue at least the most important files. But first, you need to complete Kolobo removal with Reimage or other reputable malware removal tool.

Ransomware distribution methods

As we already mentioned, Kolobo malware might get inside the computer with a help of malicious email attachment. However, there are other ways how the virus might reach computers. For instance, malware might hide under malicious ads that might be delivered even on legitimate websites. Thus, when browsing the web, you should be extremely careful and avoid clicking any suspicious content[5]. What is more, this trojan might pretend to be a useful program or its update, and trick you into installing it. For this reason, you should set automatic software updates and install new programs from the reliable sources only. Lastly, we recommend strengthening computer’s security with antivirus or anti-malware program.

Terminate Kolobo ransomware virus

First of all, you need to install malware removal program. We recommend choosing from Reimage, Plumbytes Anti-MalwareWebroot SecureAnywhere AntiVirus or Malwarebytes Anti Malware. We can assure that these tools can help to remove Kolobo from the computer entirely. We want to warn you that ransomware might be resistant and prevent you from installing this tools. If it happens, below you will find the instructions how to disable the virus. Once you do that, install your preferred security tool and update it. Then, run a full system scan and let the program perform Kolobo removal. We recommend running malware removal program several times to make sure that all malicious components are deleted.

We might be affiliated with any product we recommend on the site. Full disclosure in our Agreement of Use. By Downloading any provided Anti-spyware software to remove Kolobo ransomware virus you agree to our privacy policy and agreement of use.
do it now!
Download
Reimage (remover) Happiness
Guarantee
Download
Reimage (remover) Happiness
Guarantee
Compatible with Microsoft Windows Compatible with OS X
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 Kolobo 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.

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

Manual Kolobo virus Removal Guide:

Remove Kolobo 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.

Often ransomware viruses do not let to install security tools. In order to do that, reboot your PC to the Safe Mode as shown below.

  • 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 Kolobo

    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 Kolobo removal.

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

Remove Kolobo using System Restore

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

If the previous method hasn’t been effective, try System Restore option.

  • 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 Kolobo. 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 Kolobo removal is performed successfully.

Bonus: Recover your data

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

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

Try Data Recovery Pro to restore files encrypted by Kolobo ransomware

Follow the steps below to use Data Recovery Pro. This tool might restore some of the encrypted files automatically.

Use Windows Previous Versions feature to restore files encrypted by Kolobo ransomware virus

If you have enabled System Restore function before Kolobo hijack, follow these steps to retrieve some of the files:

  • 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”.

ShadowExplorer might help to restore files encrypted by Kolobo virus

If virus failed to delete Shadow Volume Copies, ShadowExplorer will help you to rescue some of the data.

  • 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 Kolobo 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

If this free removal guide helped you and you are satisfied with our service, please consider making a donation to keep this service alive. Even a smallest amount will be appreciated.

More information about the author

References


  • marat

    the ransom note is funny, but the virus is not a joke..

  • Farrah

    I was infected with Gingerbread. Though, I am not afraid from this one. I learn my lesson.

  • Thebe

    this one attacked me yesterday… lucky me i have data backups!