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

removal by Linas Kiguolis - - | Type: Ransomware
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Things to known about recently discovered One ransomware virus

One ransomware has been recently spotted attacking computer users. Cyber criminals usually spread malicious payload via misleading emails. When people opens an infected email attachment, the virus is installed and executed on the computer. This cyber infection is designed to camouflage itself as legitimate system processes, such as svchost.exe[1] or Chrome.exe.[2] For this reason, it can stay on the system undetected for a while and perform its nasty tasks. There’s no doubt that the primary function of the One virus is to encrypt files. As soon as it gets inside, it starts scanning the system. There’s no doubt that it is looking for the data for the encryption. Just like many other similar cyber threats, this one also aims at the most popular files such as MS Office documents, various multimedia files, databases, archives, and much more widely used data. To all corrupted files it adds .one file extension. Sadly, there’s not much what you can do with documents, pictures and other records encrypted by One malware. Although if you have data backups, meeting this crypto-malware does not cause you much damage.[3] Otherwise, you are in an unpleasant situation.

The creators of the One virus gives victims short instructions what they need to do with encrypted files in the ransom note called Recupere seus arquivos aqui.txt. This text file is dropped on the system as soon as data encryption is other. The ransom demanding message is written in the Portuguese language. Thus, Portuguese-speaking computer users are in the target eye of the ransomware. In the ransom note, victims find their unique ID and are asked to send it to the provided email address. Within 24 hours, they are supposed to receive and email with the necessary decryption key. However, you should not contact cyber criminals because they won’t provide decryption software for free. First of all, hackers will tell you how much Bitcoins their decryption software costs.[4] Then, they might use blackmailing or psychologic terror tactics to persuade you to pay the ransom. Lastly, you may not receive the promised software. Thus, instead of having a discussion with criminals, you should focus on One removal. Ransomware elimination is performed using malware removal tools such as Reimage or Plumbytes Anti-MalwareWebroot SecureAnywhere AntiVirus. However, the virus might be designed to block access to the security programs. In this case, take a look at the instructions below. They will help you to deal with obstacles and remove One from the system.

What techniques are used for ransomware distribution?

Just like the majority of other crypto-malware lurking on the web, One ransomware also is distributed with a help of malicious email attachments. Thus, the dangerous payload might be delivered straight to your inbox as an obfuscated file. The email might inform about a necessity to verify some details in the attached invoice or another important document. Crooks can pretend to be from various organizations and find numerous reasons to motivate you to open the attachment. What is more, One hijack might also occur if you click on an infected link sent in the email or social media. Thus, before clicking on unknown attachments and strange links, make sure that it’s actually safe to open. Developers of the ransomware also successfully use malvertising as another distribution method. Malware-laden ads might be placed even on legitimate and well-known websites. Thus, clicking on online ads has never been as dangerous as it is now.[5]

One ransomware removal instructions

If you think about manual One removal, you should get rid of this idea immediately! You are dealing with a serious cyber infection that might be hiding malicious files and running dangerous processes deeply in the system. What is more, the virus might use legitimate system names; so, you can unintentionally delete the wrong file. Deleting crucial system files might lead to the huge damage. In order to protect your computer and remove One virus safely, you need to use professional malware removal tools, such as Reimage or Plumbytes Anti-MalwareWebroot SecureAnywhere AntiVirus. Run a full system scan with one of these programs. However, if you cannot access security tools, please follow our instructions below.

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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 One 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 One virus Removal Guide:

Remove One using Safe Mode with Networking

If you cannot perform automatic One ransomware removal, reboot your computer to the Safe Mode with Networking as shown below. This method allows disabling the virus and running malware removal program.

  • 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 One

    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 One removal.

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

Remove One using System Restore

System Restore method also helps to disable the virus in order to run a system scan with malware removal software.

  • 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 One. 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 One removal is performed successfully.

Bonus: Recover your data

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

After ransomware attack data backups are crucial, especially if the official decryption software is not released. Below you will find three alternative methods that might help you to restore files encrypted by One malware. However, we cannot assure that they will be effective and retrieve all your data. Though, it’s still worth giving a try.

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

Data Recovery Pro for restoring files encrypted by One ransomware virus

Data Recovery Pro might be useful in data recovery if you do not have backups. This tool is designed to restore various damaged files. Thus, it might help you as well.

Windows Previous Versions feature allows restoring files encrypted by One virus

If System Restore function has been activated before ransomware attack, this method will let you copying previously saved versions of the encrypted files. Windows Previous Versions feature allows traveling back in computer’s time. Thus, it’s a great option to restore the most important documents.

  • 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 One ransomware

Ransomware viruses tend to delete Shadow Volume Copies of the targeted files. However, sometimes malware fails to do that or keep these files untouched. Thus, ShadowExplorer can help you to retrieve lost 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.

One decryptor

We are sorry, but decryption software for One ransomware is not released yet.

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

About the author

Linas Kiguolis
Linas Kiguolis - Expert in social media

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References


  • Rivka

    Why Portuguese?? Who hackers hate us so much? its the second virus this week that attacks us…

  • Thomas

    It seems we need to be more careful!

  • Kaia

    I always delete spam emails. I always think they are infected. I just dont want to get infected with a virus such as One ransomware.