ABC Ransomware

Also Known As: ABC virus
Distribution: Low
Damage level: Severe

ABC ransomware removal instructions

What is ABC?

A recently-discovered ransomware-type virus called ABC is designed to stealthily infiltrate the system and encrypt most stored data. Henceforth, the affected files became unusable. During encryption, ABC also appends filenames with an extension comprising eight random digits and letters. For instance, "sample.jpg" might be renamed to a filename such as "sample.jpg.f49idjty". Immediately after encryption, ABC generates an HTML file ("READ_IT.html"), placing it in every existing folder.

The HTML file provides users with details regarding the situation and instructs them what to do next. The appearance of this file is similar to that issued by another high-risk ransomware infection called GlobeImposter. Therefore, these viruses are related. The text within the HTML file states that data has been encrypted and that it is impossible to restore files without a unique key. Unfortunately, this information is accurate. It is currently unknown whether ABC uses symmetric or asymmetric cryptography. In any case, a unique decryption key is generated for each victim. Criminals store these keys on a remote server and victims are encouraged to pay ransoms to receive them by contacting cyber criminals via the contact form on ABC's Tor website. They then receive detailed information regarding payment (e.g., price, the developer's Bitcoin wallet address, etc.) The form also allows victims to attach a single selected file (up to 1MB in size, which should not contain any "valuable" information). Criminals then supposedly decrypt this file and return it as a 'guarantee' that files can be restored. It is currently unknown how much money ABC's developers demand, however, an average ransom usually fluctuates between $500 and $1500. No matter how low the cost, never trust cyber criminals. These persons are very likely to ignore victims, once payments are submitted. There is a high probability that you will be scammed and paying will not deliver any positive result. You will lose your money and support cyber criminals' malicious businesses. Therefore, we strongly advise you to ignore all requests to contact these people or pay any ransoms.

Screenshot of a message encouraging users to pay a ransom to decrypt their compromised data:

ABC decrypt instructions

ABC is virtually identical to jCandy, Jhash, SIGMA, Teamo, and dozens of other ransomware-type viruses. Although, these viruses are developed by different cyber criminals, their behavior is identical - all encrypt files and makes ransom demands. Research shows that ransomware-type viruses have just two major differences: 1) cost of decryption, and; 2) type of encryption algorithm used. Unfortunately, most employ AES, RSA, and other cryptographies that generate unique decryption keys. Therefore, in most cases, file decryption manually, without developers help, is impossible. The only possible scenario allowing manual decryption is the ransomware being not fully developed or having certain bugs/flaws (e.g., the key is hard-coded, stored locally, etc.) Ransomware-type viruses such as ABC present a strong case for maintaining regular data backups, however, your backup files must be stored in a safe place (e.g., remote server or an external hard drive), otherwise they will also be encrypted.

How did ransomware infect my computer?

To proliferate ransomware-type viruses, criminals usually employ spam emails (malicious attachments), unofficial software download sources (peer-to-peer networks, freeware download websites, etc.), fake software updaters, and trojans. Malicious attachments typically come in the format of MS Office documents (with macros) or JavaScript files. Once opened, these attachments download and install malware. Third party software distribution sources proliferate viruses by presenting them as legitimate software. Users are tricked into downloading and installing malware. Fake updaters exploit outdated software bugs/flaws to infect the system. Trojans are the simplest ones - they merely open "gates" for malware to infiltrate the system.

How to protect yourself from ransomware infections?

The main reasons for computer infections are poor knowledge and careless behavior. The key to computer safety is caution. Therefore, it is very important to pay close attention when browsing the Internet. Never open files attached to emails received from dubious addresses. In fact, such emails should be deleted without reading. We also recommend that you download your software from official sources only using a direct download link. Third party downloaders/installers often promote malicious apps and, thus, should not be used. Keeping installed applications updated and using a legitimate anti-virus/anti-spyware software is also paramount, however, applications should never be updated using third party tools, since criminals employ fake updaters to proliferate ransomware. To update applications, an implemented "Update" feature or a tool provided by the official developer.

Text presented in ABC ransomware HTML file:

All your files have been encrypted!
You have to pay for decryption in Bitcoins. The price depends on how fast you write to us. After payment we will send you the decryption tool that will decrypt all your files.
Decryption as guarantee
Your documents, photos, databases and other important files have been encrypted cryptographically strong, without the original key recovery is impossible! To decrypt your files you need to buy the special software - "DECRYPTER" Using another tools could corrupt your files, in case of using third party software we dont give guarantees that full recovery is possible so use it on your own risk. If you want to restore files, go to on our site: 1) Download TOR-Browser (hxxps:// 2) Run it 3) Go to hxxp://cr7icbfqm64hixta.onion
How to obtain Bitcoins
The easiest way to buy bitcoins is LocalBitcoins site. You have to register, click 'Buy bitcoins', and select the seller by payment method and price.
Also you can find other places to buy Bitcoins and beginners guide here:
Wait from us for reply to your mail within 48 hours.
Do not try to decrypt your data using third party software, it may cause permanent data loss.
Decryption of your files with the help of third parties may cause increased price (they add their fee to our) or you can become a victim of a scam.
Your personal ID: -

Screenshot of ABC website:

ABC website

Text presented on this website:

ABC Decryptor™

We present a special software - ABC Decryptor™ -
which allows to decrypt and return control to all your encrypted files.

How to buy ABC Decryptor™?
You can make a payment with BitCoins, there are many methods to get them.
You should register BitCoin wallet:
Simplest online wallet or Some other methods of creating wallet
Purchasing Bitcoins, although it's not yet easy to buy bitcoins, it's getting simpler every day.
Here are our recommendations: (WU) Buy Bitcoins with Western Union. Recommended for fast, simple service.
Payment Methods: Western Union, Bank of America, Cash by FedEx, Moneygram, Money Order. In NYC: Bitcoin ATM, in person. Service allows you to search for people in your community willing to sell bitcoins to you directly. Buy Bitcoins with VISA/MASTERCARD or wire transfer. The best for Europe. Buy Bitcoins instantly for cash. An international directory of bitcoin exchanges. Bitcoin for cash. CoinJar allows direct bitcoin purchases on their site.

Free decryption as guarantee
Before paying you can send us up to 1 file for free decryption. The total size of files must be less than 1Mb (non archived), and files should not contain valuable information. (databases, backups, large excel sheets, etc.)

Wait, we'll send you a Decryptor by email.

Screenshot of files encrypted by ABC (extension of eight random digits and letters):

Files encrypted by ABC

ABC ransomware removal:

Instant automatic removal of ABC virus: Manual threat removal might be a lengthy and complicated process that requires advanced computer skills. Spyhunter is a professional automatic malware removal tool that is recommended to get rid of ABC virus. Download it by clicking the button below:
▼ DOWNLOAD Spyhunter By downloading any software listed on this website you agree to our Privacy Policy and Terms of Use. Free scanner checks if your computer is infected. To remove malware, you have to purchase the full version of Spyhunter.

Quick menu:

Step 1

Windows XP and Windows 7 users: Start your computer in Safe Mode. Click Start, click Shut Down, click Restart, click OK. During your computer start process, press the F8 key on your keyboard multiple times until you see the Windows Advanced Option menu, and then select Safe Mode with Networking from the list.

Safe Mode with Networking

Video showing how to start Windows 7 in "Safe Mode with Networking":

Windows 8 users: Start Windows 8 is Safe Mode with Networking - Go to Windows 8 Start Screen, type Advanced, in the search results select Settings. Click Advanced startup options, in the opened "General PC Settings" window, select Advanced startup. Click the "Restart now" button. Your computer will now restart into the "Advanced Startup options menu". Click the "Troubleshoot" button, and then click the "Advanced options" button. In the advanced option screen, click "Startup settings". Click the "Restart" button. Your PC will restart into the Startup Settings screen. Press F5 to boot in Safe Mode with Networking.

Windows 8 Safe Mode with networking

Video showing how to start Windows 8 in "Safe Mode with Networking":

Windows 10 users: Click the Windows logo and select the Power icon. In the opened menu click "Restart" while holding "Shift" button on your keyboard. In the "choose an option" window click on the "Troubleshoot", next select "Advanced options". In the advanced options menu select "Startup Settings" and click on the "Restart" button. In the following window you should click the "F5" button on your keyboard. This will restart your operating system in safe mode with networking.

windows 10 safe mode with networking

Video showing how to start Windows 10 in "Safe Mode with Networking":

Step 2

Log in to the account infected with the ABC virus. Start your Internet browser and download a legitimate anti-spyware program. Update the anti-spyware software and start a full system scan. Remove all entries detected.

If you cannot start your computer in Safe Mode with Networking, try performing a System Restore.

Video showing how to remove ransomware virus using "Safe Mode with Command Prompt" and "System Restore":

1. During your computer start process, press the F8 key on your keyboard multiple times until the Windows Advanced Options menu appears, and then select Safe Mode with Command Prompt from the list and press ENTER.

Boot your computer in Safe Mode with Command Prompt

2. When Command Prompt mode loads, enter the following line: cd restore and press ENTER.

system restore using command prompt type cd restore

3. Next, type this line: rstrui.exe and press ENTER.

system restore using command prompt rstrui.exe

4. In the opened window, click "Next".

restore system files and settings

5. Select one of the available Restore Points and click "Next" (this will restore your computer system to an earlier time and date, prior to the ABC ransomware virus infiltrating your PC).

select a restore point

6. In the opened window, click "Yes".

run system restore

7. After restoring your computer to a previous date, download and scan your PC with recommended malware removal software to eliminate any remaining ABC ransomware files.

To restore individual files encrypted by this ransomware, try using Windows Previous Versions feature. This method is only effective if the System Restore function was enabled on an infected operating system. Note that some variants of ABC are known to remove Shadow Volume Copies of the files, so this method may not work on all computers.

To restore a file, right-click over it, go into Properties, and select the Previous Versions tab. If the relevant file has a Restore Point, select it and click the "Restore" button.

Restoring files encrypted by CryptoDefense

If you cannot start your computer in Safe Mode with Networking (or with Command Prompt), boot your computer using a rescue disk. Some variants of ransomware disable Safe Mode making its removal complicated. For this step, you require access to another computer.

To regain control of the files encrypted by ABC, you can also try using a program called Shadow Explorer. More information on how to use this program is available here.

shadow explorer screenshot

To protect your computer from file encryption ransomware such as this, use reputable antivirus and anti-spyware programs. As an extra protection method, you can use programs called HitmanPro.Alert and EasySync CryptoMonitor, which artificially implant group policy objects into the registry to block rogue programs such as ABC ransomware.

Note that the Windows 10 Fall Creators Update includes a "Controlled Folder Access" feature that blocks ransomware attempts to encrypt your files. By default, this feature automatically protects files stored in the Documents, Pictures, Videos, Music, Favorites as well as Desktop folders.

Controll Folder Access

Windows 10 users should install this update to protect their data from ransomware attacks. Here is more information on how to get this update and add an additional protection layer from ransomware infections.

HitmanPro.Alert CryptoGuard - detects encryption of files and neutralises any attempts without need for user-intervention:

hitmanproalert ransomware prevention application

Malwarebytes Anti-Ransomware Beta uses advanced proactive technology that monitors ransomware activity and terminates it immediately - before reaching users' files:

malwarebytes anti-ransomware

  • The best way to avoid damage from ransomware infections is to maintain regular up-to-date backups. More information on online backup solutions and data recovery software Here.

Other tools known to remove ABC ransomware: