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Onion3Cry ransomware virus. How to remove? (Uninstall guide)

removal by Lucia Danes - - | Type: Ransomware
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Onion3Cry ransomware uses HiddenTear's code to extort computer users

Onion3Cry ransomware

Onion3Cry ransomware is a HiddenTear-based[1] computer virus that attempts to prevent the victim from reaching files stored on a computer. Once installed, it damages victim’s files and adds .onion3cry-open-DECRYPTMYFILES extension to their file names. Finally, the virus displays a lock screen called onion3 crypt v.3 that says all files were encrypted.

To recover corrupted data, the virus suggests writing to onion33544@india.com. Also, the malicious program urges to write to the provided email within 12 hours otherwise all data will be lost for good.

Onion3Cry virus suggests buying “Black decryptor,” a tool which is supposed to restore all encrypted data for the victim. However, we do not recommend buying this tool no matter what. First of all, technical details suggest that Onion3 virus is a poorly coded computer program and that could mean that the decrypter might be buggy as well. As a result, you might not recover your files at all.

Researchers suggest that this malicious program spreads in the form of a fake Portuguese updater[2] which displays the following message while encrypting all files in the background:

Obtendo atualizações
isso pode levar
alguns minutos
Verificando se ha atualizações …..

If such message appeared on your screen, shut down your computer as soon as possible and disable any Internet connections available. This way, you might succeed to prevent the ransomware from corrupting your data. Finally, remove Onion3Cry virus using instructions we provided.

Although Onion3Cry removal should not be complicated since it is not the most dangerous ransomware virus available, you should still take it seriously. Please use an up-to-date and reliable anti-spyware software. We recommend choosing Reimage, although the choice is yours. You can also find some useful software reviews on our Software page.

Distribution of deceptive malware

Onion3Cry malware can arrive at your computer right after opening a fraudulent email attachment, so you have to inspect each virtual message you receive carefully. Udenvirus.dk says[3] that nowadays, criminals can deceive unsuspecting victims by spoofing email addresses, using official logos and composing convincing messages that claim the attached file is an invoice, bill or subpoena.

Besides, scammers can bundle such malicious software alongside illegal programs you can download from illegal websites. To put it differently, we do not recommend you to try to download software cracks, keygens and similar programs meant to install licensed versions of legitimate software illegally.

Users seeking for free full-version software are the primary targets for cybercriminals. They can fill such software bundles with malicious components and trick the victim into installing them alongside the illegal software-cracking programs.

Remove Onion3Cry file-encrypting virus now

You do not have to be a professional IT expert to remove Onion3Cry virus. To kill components of the malicious software, you have to prepare your computer using instructions provided below the article and run an updated anti-malware software.

We highly recommend one of the malware wipers listed below the article – our team has tested them and was convinced that these are capable of deleting all kinds of malware and spyware from computers quite easily.

Onion3Cry removal requires a system reboot into Safe Mode with Networking state. The instructions provided below explain how to complete this task.

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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 Onion3Cry 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 Onion3Cry virus Removal Guide:

Remove Onion3Cry 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 Onion3Cry

    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 Onion3Cry removal.

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

Remove Onion3Cry 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 Onion3Cry. 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 Onion3Cry removal is performed successfully.

Bonus: Recover your data

Guide which is presented above is supposed to help you remove Onion3Cry from your computer. To recover your encrypted files, we recommend using a detailed guide prepared by 2-spyware.com security experts.

Usually, Hidden-Tear based ransomware viruses prove to be programmed poorly, so sometimes it is possible to restore files encrypted by them. You can find some data recovery options below.

If your files are encrypted by Onion3Cry, you can use several methods to restore them:

Test Data Recovery Pro capabilities

You can try a data recovery software called Data Recovery Pro. Instructions on how to use it are given below.

Test HiddenTear decryption tool

Since Onion3Cry malware is created using HiddenTear's code, the decryptor for HiddenTear might work. You can download HiddenTear decryptor for free.

You can also use this decrypter by Michael Gillespie. Before using this decrypter, brute-force the decryption key using HiddenTear Brute Force tool.

Finally, you should always think about the protection of crypto-ransomwares. In order to protect your computer from Onion3Cry 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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References