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

removal by Lucia Danes - - | Type: Ransomware
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THTLocker comes as a backup to Onion3Cry ransomware

The image displaying THTLocker ransom note

THTLocker virus operates as ransomware[1] which is closely associated with HiddenTear-based Onion3Cry threat. Researchers spotted it operating independently as well as cooperating with the latter virus. Except the fact that it is created on the source code pattern of the HiddenTear, the malware does not exhibit any particular exceptional features.

The ransom message discloses limited information. The first line in Russian[2] says that all your important files are collected. Further lines identify the name of the ransomware – THTLocker.

According to the trojan names[3], the malware executable cryptolocker.exe, even it does not have any technical resemblance to the original Cryptolocker virus. Such feature is most likely to be used for alarming purposes to encourage victims to pay the ransom.

Taking a closer look, it becomes clear that THT Locker is a screen locker rather than a genuine file-encrypting threat. Luckily, most of the security tools detect the malware as Ransom_LOCKSCARE.A or trojan.GenericKD.12399747.
Thus, the malware is unlikely to encode the files but rather lock your computer temporarily. In order to gain access, click on Alt+F4. Remove THTLocker malware. You can use Reimage or Malwarebytes Anti Malware for that purpose.

Note that deleting cryptolocker.exe file will not eliminate the very malware. Since it is related to Onion3Cry malware, check whether some of your files are not encrypted. It is not recommended to remit the payment since the malware still seems to be in the initial stage of development.

There is no guarantee that the perpetrators return files after receiving the ransom. Furthermore, though there have been ample of HiddenTear-based ransomware samples created, there is still hope that the free decrypter designed for the original malware may work. Now let us discuss distribution trends and THTLocker removal options.

Preventing the assault of ransomware

This malware is likely to have spread via spam emails. Thus, beware of the emails which such message content: “Files attached. Thanks” “Please check the status of the invoice,” etc. Though Ykcol malware uses such style, THTLocker developers might rip off some ideas as well.

You should be also wary of opening shady video links and downloading content from websites with poor protection and an excessive amount of ads. Fortify the protection of cyber security by adding malware elimination tools and a firewall program. Likewise, the risk of THTLocker hijack will significantly decrease.

Ways to delete THTLocker infection

Depending on whether you got THTLocker screen locker or Onion3Cry ransomware as well, the elimination process might be slightly more troublesome. In any case, you will need malware elimination utility. It should not take long to remove THTLocker virus.

In case the malware meddles with the system files, you might need to reboot the system into Safe Mode and then complete THTLocker removal. In case some of the files have been encrypted, take a look at data recovery suggestions.

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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 THTLocker 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 THTLocker virus Removal Guide:

Remove THTLocker 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.

Restarting the system in Safe Mode will grant access to the security application. Likewise, you should be able to remove THTLocker malware.

  • 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 THTLocker

    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 THTLocker removal.

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

Remove THTLocker 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 THTLocker. 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 THTLocker removal is performed successfully.

Bonus: Recover your data

Guide which is presented above is supposed to help you remove THTLocker 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 THTLocker, you can use several methods to restore them:

The benefits of Data Recovery Pro

This utility is designed to recover damaged files due to a system crash. Nonetheless, it might come in handy dealing with ransomware as well.

ShadowExplorer option

In case some of your data was indeed affected, this software exploits shadow volume copies and recreates 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.

THTLocker Decrypter

Instead of wasting money and time on recovering the data via the method proposed by THTLocker developers, try a free HiddenTear decrypter.

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