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File Spider ransomware. How to remove? (Uninstall guide)

removal by Olivia Morelli - - | Type: Ransomware

File Spider ransomware targets victims from Balkans

File Spider ransomware ransom note

File Spider ransomware is a malicious program which aims to encrypt valuable information on the victimized computers to earn illegal profits[1]. After it reaches the system and encodes data, it demands to pay the ransom within 96 hours to receive a decryptor. According to the latest news, the ransomware targets people from the Balkans — Bosnia, Serbia, Croatia, etc.

However, security experts do not recommend following such orders. Criminals are not worth relying on because you might lose your money as well. Thus, after you have noticed .spider extension at the end of your filenames, you should focus on File Spider removal because it may have modified the system, opened a backdoor to other cyber threats and made your PC vulnerable.

File Spider ransomware is usually dropped on the system from the malicious MS Word document and executed using PowerShell. The virus on the system operates from two components. The one is an encryptor that arrives on the system as an enc.exe file. The second element is a decrypter and the main GUI that runs from dec.exe.

Following data encryption, ransomware shows a ransom demanding window called “File Spider [].” It includes a detailed explanation about data encryption and gives instructions what users have to do. The ransom note also provides a link to the video hosting site where the victims can find a video tutorial on how to decrypt the data. 

The program has several sections that provide different information or guidelines:

  • Start Page;
  • Translate
  • Visit Website;
  • ID Code;
  • Decrypter;
  • Help.

In the Start Page, victims are threatened not to take any other action because File Spider malware is said to be capable of detecting them and deleting encrypted files as a punishment. However, it’s currently unknown if ransomware actually has this functionality. Though, elimination of the malware is still needed.

Nevertheless, cyber criminals try to be helpful and give even video tutorial how to access payment website; you should not follow their orders to avoid money loss.[2] Ransomware is used for swindling the money illegally. Thus, once they receive the payment; they might disappear and do not give the decryption key.

Questions about File Spider ransomware

If you see this threatening window on your computer’s screen, you should reboot to Safe Mode with Networking and remove File Spider virus using reputable malware removal software, such as Reimage.

Ransomware arrives as a decoy Office Word document 

While crypto-malware can spread with the help of different techniques, this one particularly reaches the victim as a fraudulent email letter with the subject line Potrazivanje dugovanja, which means Debt Collection in English. The malicious letter holds Word document written in Bosnian language. 

Once the inexperienced computer user opens the document it triggers the hidden macro code which launches PowerShell to download the payload of the ransomware from a free Java Script hosting site called At first, the payload is encoded with Base64.

To decode the malicious files, PowerShell script uses AlbertTI key in the XOR operation and saves the payloads inside the executables of the ransomware — enc.exe and dec.exe. 

Therefore, malware researchers team from[3] warn that users have to be careful with downloads, updates, and ads because they might also be used for spreading the virus. Thus, you should not click or download any suspicious content online.

File Spider virus termination instructions

It is important to understand the risks of File Spider ransomware. It can not only corrupt your files, but also let inside other dangerous computer threats to damage your system. Therefore, its elimination procedure should be held with an extreme care.

Sadly, but the regular computer user is not experienced enough to deal with ransomware-type cyber infections. Likewise, the only option to clean your system is to ensure File Spider removal to a professional security software. Our top recommendations would be Reimage, Plumbytes Anti-MalwareWebroot SecureAnywhere AntiVirus and Malwarebytes Anti Malware

They are particularly designed to be easy to use and finish the elimination procedure quickly. If you want to perform automatic termination, you might need to reboot your PC into Safe Mode to prevent the ransomware blocking your system. Those who are not aware of how to do that can follow the instructions provided below.

Once you remove File Spider from the computer, you can restore encrypted files from backups. However, if you do not have them, you can try alternative recovery tools. You can find our recommendations below as well.

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If you failed to remove infection using Reimage, submit a question to our support team and provide as much details as possible.
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Manual File Spider virus Removal Guide:

Remove File Spider using Safe Mode with Networking

You should start File Spider removal by booting your PC into Safe Mode. The instructions are given 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 File Spider

    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 File Spider removal.

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

Remove File Spider using System Restore

Alternative way to disable the virus is the following:

  • 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 File Spider. 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 File Spider removal is performed successfully.

Bonus: Recover your data

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

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

Give a try to Data Recovery Pro

You can restore files with .spider extension with the help of this professional tool. Keep in mind that it is handy since you can also recover data if you have accidentally deleted it.

You can always use the Windows Previous Versions feature

This option suits the ones who want to particularly recover individual data and if the System Restore function was enabled before ransomware infiltration. 

  • 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 be helpful

Note that Shadow Volume Copies are necessary to use this tool.

  • Download Shadow Explorer (;
  • 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.

Currently, there is no official File Spider Decryptor

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

About the author

Olivia Morelli
Olivia Morelli - Ransomware analyst

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