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Tk ransomware. How to remove? (Uninstall guide)

removal by Ugnius Kiguolis - - | Type: Ransomware

Tk ransomware demands 1 BTC in exchange for the decryption key

The ransom note by Tk ransomware

Tk virus functions as a ransomware-type infection which uses AES algorithm[1] to encrypt the most valuable data. It was first discovered at the beginning of January 2017 demanding to pay 1 Bitcoin for the decryption tool. The original filename of this file-encrypting virus is your files have been encrypted.exe. 

Users report receiving the following message after Tk attack:

1198 
your files have been encrypted 
send 1 BTC to 1F1tAaz5x1HUXrCNLbtMDqcw6o5GN7xX7 

Usually, criminals indicate a specific e-mail address for contact purposes. However, Tk ransomware directly provides the Bitcoin account to which people should make the transaction to recover encrypted files. Although, obeying the rules of the crooks is not the best decision.

There are numerous cases when people agreed to pay the ransom and were tricked by the empty promises of the cybercriminals. Therefore, we suggest you to remove Tk virus instead of paying the demanded money. You can always recover encoded information from the backup copies stored in the cloud.

If you do not have them, feel free to use alternative data restore techniques which are presented at the end of this article. However, do not forget that you will only be able to proceed to retrieving your data after Tk removal. You can do that with the help of Reimage or Plumbytes Anti-MalwareWebroot SecureAnywhere AntiVirus depending on your preference. 

Please, do not try to eliminate TK ransomware virus from the system on your own. These attempts might end up with the irreparable damage to the system. File-encrypting viruses can affect legitimate system processes or hide under the safe-looking names, so you might be tricked and uninstall wrong entries.

Watch out suspicious spam emails and questionable software installers to avoid ransomware

Ransomware mostly spreads via malicious spam emails. These letters are perfectly crafted using social engineering strategies. Therefore, users can be easily tricked into opening a safe-looking attachment.[2]

Usually, these emails inform about a serious issue or ask to check the information provided in the attached Word, Excel, or another legitimate-looking website. However, once opened, malware executable is dropped on the system.

However, other malware distribution might be used to spread TK ransomware as well. For instance, criminals might use fake software downloads or updates that might be delivered in the form of pop-up or available on the questionable file-sharing websites, torrents or P2P networks.

Security specialists from virukset.fi[3] also suggest being careful with eye-catching ads, installing software and OS updates, and secure remote desktop connections. Additionally, creating backups should be on your priority's list as well. You can never know what tricks developers of ransomware might create for you.

Delete Tk ransomware virus with anti-malware software

Tk ransomware removal requires using professional malware removal software, such as Reimage or Malwarebytes Anti Malware. It's important to use security programs to terminate malicious components safely. Malware may have injected malicious code into legit system processes and installed numerous files that are responsible for hazardous tasks.

To remove Tk ransomware with all its components manually is nearly impossible without damaging the system if you are not experienced IT specialists. Thus, in order to avoid further damage, you should use anti-malware tools.

Once you get rid of Tk virus, you can restore your files from backups or use alternative methods. You can find available recovery options below, as well as detailed instructions how to disable malware in case you encouter some obstacles with its 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 Tk ransomware. 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 Tk virus Removal Guide:

Remove Tk using Safe Mode with Networking

Typically, ransomware-type viruses are able to prevent you from installing a security software. Thus, you must disable Tk malware by rebooting your computer to Safe Mode with Networking:

  • 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 Tk

    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 Tk removal.

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

Remove Tk using System Restore

  • 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 Tk. 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 Tk removal is performed successfully.

Bonus: Recover your data

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

Experts recommend Data Recovery Pro

We strongly suggest you try recovering files with this professional tool. Additionally, it can help you to restore files if you have accidentally deleted them.

Windows Previous Versions feature can be handy

You must first check if System Restore was enabled before Tk virus infiltration to use this application. If it was, follow the guidelines below.

  • 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 can be useful

Fortunately, Tk ransomware currently does not delete Shadow Volume Copies from the victimized computers. Likewise, you are free to use this alternative recovery software.

  • 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.

Sadly, but there is no official Tk decryptor yet

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

About the author

Ugnius Kiguolis
Ugnius Kiguolis - The mastermind

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References