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.abc file virus. How to delete? (Removal tutorial)

removal by Ugnius Kiguolis - - | Type: Ransomware

What is .abc virus and how can it damage your computer?

.abc file extension virus has raised a lot of discussions, and sadly, even now it is unclear who has developed this malicious program. However, at least we know that these scammers were working behind Teslacrypt ransomware project, which is officially closed since actors behind this ransomware released the Master decryption key, exempting all victims from ransom payment. This news is fascinating for those affected by the .abc virus as well. However, although the virus is no longer active, you must learn about this ransomware because the more you know about this virus, the more chances that you will be able to protect yourself from ransomware attacks in the future. .abc file extension ransomware encrypts all files with RSA-2048 encryption to make them inaccessible for the victim.

As the name of this ransomware suggests, the virus appends .abc file extension to encrypted records to help the victim understand which files were encrypted. Reportedly, variants of this ransomware were adding .exx, .xyz, .zzz, .xxx, .aaa extensions to encrypted files. The virus creates and saves a ransom note dubbed Restore_files.txt, which contains instructions on how to transfer the ransom to criminals and get the decryption tool. The virus used to ask 0.7 BTC when it was active, which is approximately $680. Remember that typically files encrypted by ransom-demanding viruses cannot be restored in any way, unless the victim has a backup. The encryption and decryption keys that criminals use are strongly secured and removed from the system right after the encryption procedure. Therefore, the fact that you can restore your files using TeslaCrypt decrypter is only a fluke. Before you can use this tool, remove .abc virus using proper malware removal programs, for instance, you can use Reimage or Malwarebytes Anti Malware. After a successful .abc virus removal, download the decryption tool and start decrypting your files.

Distribution methods

.abc ransomware virus reportedly used to spread around using the same ransomware techniques that the majority of malware developers use. It mainly traveled via email, also was hosted on malicious websites, and also arrived together with fake software updates. You should be very careful when navigating through unknown Internet websites and avoid clicking on catchy-looking ads because they can be malware-laden and clicking on them would only drop infectious components to your system or reroute you to websites hosting an exploit kit. Nowadays malware developers take advantage of the latest malware dissemination techniques that computer users are unaware of and use them to spread the malware rapidly. The best way to stop malicious attempts to infiltrate your system is to protect your PC with anti-malware program, rely on common sense and avoid opening links or attachments that unknown people send to you.

Remove .abc file extension virus from the system

You shouldn’t waste too much time on malware such as .abc virus and let proper malware removal tools eliminate them from your system. That is why we recommend using anti-malware software like Reimage. Besides, you do not even need to consider whether to pay the ransom or not – virus’ authors have already disabled the payment websites and published the Master decryption key, which is the main one and can decrypt files encrypted by all TeslaCrypt variants. We have also provided several additional .abc decryption options in case you are interested. However, remember that you must complete the .abc removal procedure before you start decrypting your files with the help of methods listed below. If you cannot start your anti-malware software to remove .abc virus, read the detailed removal steps provided 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.
Computer security experts recommend using Reimage to uninstall .abc file virus. Reimage scans the entire computer system and checks whether it is infected with spyware/malware or not. If you want to remove computer threats and secure your computer system, you should consider buying the licensed version of Reimage.
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To remove .abc File Extension virus, follow these steps:

Eliminate .abc File Extension using Safe Mode with Networking

Start your computer in Safe Mode with Networking if you want to launch your malware removal software without any interferences. Follow these steps:

  • Step 1: Restart your computer in Safe Mode with Networking

    Windows 7 / Vista / XP
    1. Go to Start Shutdown Restart OK.
    2. As soon as your computer starts, start pressing F8 key repeatedly before the Windows logo shows up.
    3. Choose Safe Mode with Networking from the list Choose 'Safe Mode with Networking' option

    Windows 10 / Windows 8
    1. Click on the Power button at the Windows login screen, and then press and hold Shift key on your keyboard. Then click Restart.
    2. Then select Troubleshoot Advanced options Startup Settings and click Restart.
    3. Once your computer starts, select Enable Safe Mode with Networking from the list of options in Startup Settings. Choose 'Enable Safe Mode with Networking' option
  • Step 2: Remove .abc File Extension

    Sign in to your account and launch any Internet browser. Download a legitimate anti-malware software, for instance, Reimage. Make sure you update it to the latest version and then run a full system scan with it to detect and eliminate all malicious components of the ransomware to remove .abc File Extension completely.

If your ransomware does not allow you to access Safe Mode with Networking, please follow the instructions provided below.

Eliminate .abc File Extension using System Restore

Below, you can find the second .abc virus removal option in case you cannot wipe the malware in Safe Mode with Networking.

  • Step 1: Restart your computer in Safe Mode with Command Prompt

    Windows 7 / Vista / XP
    1. Go to Start Shutdown Restart OK.
    2. As soon as your computer starts, start pressing F8 key repeatedly before the Windows logo shows up.
    3. Choose Command Prompt from the list Choose 'Safe Mode with Command Prompt' option

    Windows 10 / Windows 8
    1. Click on the Power button at the Windows login screen, and then press and hold Shift key on your keyboard. Then click Restart.
    2. Then select Troubleshoot Advanced options Startup Settings and click Restart.
    3. Once your computer starts, select Enable Safe Mode with Command Prompt from the list of options in Startup Settings. Choose 'Enable Safe Mode with Command Prompt' option
  • Step 2: Perform a system restore to recover files and settings
    1. When the Command Prompt window appears, type in cd restore and press Enter. Type 'cd restore' without quotes and hit 'Enter'
    2. Then type rstrui.exe and hit Enter.. Type 'rstrui.exe' without quotes and hit 'Enter'
    3. In a new window that shows up, click the Next button and choose a restore point that was created before the infiltration of .abc File Extension and then click on the Next button again. When 'System Restore' wizard comes up, click 'Next'. Choose a preferable restore point and click 'Next'
    4. To start system restore, click Yes. Hit 'Yes' and start system restore
    After restoring the computer system to an antecedent date, install and check your computer with Reimage to uncover any remains of .abc File Extension.

Bonus: Restore your files

Using the tutorial provided above you should be able to eliminate .abc File Extension from the infected device. novirus.uk team has also prepared an in-depth data recovery guide which you will also find above.

There are a couple of methods you can apply to recover data encrypted by .abc File Extension:

Let Data Recovery Pro recover all files marked as .abc

Data Recovery Pro is hands down one of the best recovery tools that are capable of restoring deleted, corrupted, or encrypted files. We suggest you try it. 

  • Download Data Recovery Pro (https://novirus.uk/download/data-recovery-pro-setup.exe);
  • Install Data Recovery on your computer following the steps indicated in the software’s Setup;
  • Run the program to scan your device for the data encrypted by .abc File Extension ransomware;
  • Recover the data.

Windows Previous Versions method

In case you enabled System Restore function a while ago, now you can take advantage of it and restore lost files using Windows Previous Versions. More information on that is provided below.

  • Right-click on the encrypted document you want to recover;
  • Click “Properties” and navigate to “Previous versions” tab;
  • In the “Folder versions” section look for the available file copies. Choose the desired version and press “Restore”.

Let ShadowExplorer explore the system for Volume Shadow Copies

As you may already know, Volume Shadow Copies are essential and can instantly recover files if their original versions get corrupted. Use ShadowExplorer as explained below.

  • Download Shadow Explorer (http://shadowexplorer.com/);
  • Install Shadow Explorer on your computer following the instructions in the software’s Setup Wizard;
  • Run the program. Navigate to the menu on the top-left corner and select a disk containing your encrypted files. Look through the available folders;
  • When you find the folder you want to recover, right-click it and select “Export”. Also, choose where the recovered data will be stored.

Run TeslaCrypt decrypter

As we have already mentioned, .abc file virus is reportedly a variant of Teslacrypt ransomware, and there is a tool that can decrypt files encrypted by this virus’ versions. You can download the decryptor here: Teslacrypt decryption tool.

It is strongly recommended to take precautions and secure your computer from malware attacks. To protect your PC from .abc File Extension and other dangerous viruses, you should install and keep a powerful malware removal tool, for instance, Reimage, Plumbytes Anti-MalwareWebroot SecureAnywhere AntiVirus or Malwarebytes Anti Malware.

About the author

Ugnius Kiguolis
Ugnius Kiguolis

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Source: https://www.2-spyware.com/remove-abc-file-extension-virus.html

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