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Remove GC47 ransomware / virus (Decryption Steps Included) - Tutorial

removal by Gabriel E. Hall - - | Type: Ransomware

Can GC47 ransomware be related to Cerber virus?

Questions about GC47 ransomware virus

Recently discovered GC47 ransomware virus might have a relationship with the infamous Cerber ransomware. This file-encrypting virus appends either .cerber3 or .Fuck_You file extension to the encoded files. Due to the latter file extension the virus is also known as .Fuck_You File virus. It seems that the virus is still in-development mode, but we can already discuss what online community can expect from this cyber threat. GC47 virus is based on HiddenTear/EDA2 open-source project.[1] After infiltration the virus might make entries in Windows Registry that allows starting the virus automatically every time when user runs the computer. Then, it starts scanning the system and looking for the targeted file-types. Malware distorts files using AES encryption.[2] Unfortunately, this symetric-key algorithm is not breakable easily. Thus, GC47 removal won’t help to recover the files. Victims need to obtain a decryption key in order to get back important documents, sentimental pictures, audio or video collection, and other files. The full list of the targeted files you can find below:

.txt, .doc, .docx, .xls, .xlsx, .pdf, .pps, .ppt, .pptx, .odt, .gif, .jpg, .png, .db, .csv, .sql, .mdb.sln.php, .asp, .aspx, .html, .xml, .psd, .frm, .myd, .myi, .dbf, .mp3, .mp4, .avi, .mov, .mpg, .rm, .wmv, .m4a, .mpa, .wav, .sav, .gam, .log, .ged, .msg, .myo, .tax, .ynab, .ifx, .ofx, .qfx, .qif, .qdf, .tax2013, .tax2014, .tax2015, .box, .ncf, .nsf, .ntf, .lwp.

Once the data encryption is over, GC47 ransomware drops a ransom note called READ_IT.txt. The ransom-demanding message is short and does not give information to the victims what have happened with their files. The author of the ransomware is only interested in the most important information to him or her. The hacker just asks to transfer 50 USD in Bitcoins to the provided Bitcoin wallet address and send an email. Nevertheless, the ransom is not huge; we still do not recommend paying it. If you do not have data backups, data decryption possibilities are not high because GC47 virus might delete Shadow Volume Copies that are crucial in data recovery process. Though, paying the ransom might not end up as you wish. You cannot be sure whether the hacker actually can provide you necessary tools that can decrypt files safely. We do not recommend spending your money and motivating the hacker to develop bigger projects in the future. It’s better to remove GC47 from the computer and spend 50 dollars for data backup solutions[3] or good antivirus software[4] that would protect from cyber threats in the future. For virus elimination, we suggest installing Reimage Reimage Cleaner Intego and scanning the system. Though, you can find detailed instructions how to treat the malware at the end of the article.

The image of GC47 ransomware virusGC47 ransomware virus encrypts files using AES algorithm and demands 50 dollars.

How can you get infected with a file-encrypting virus?

The specific distribution methods how GC47 malware spreads are still unknown. The virus payload might be distributed via malicious email attachments, fake software updates or downloads, infected links, malware-laden ads, social media or file-sharing websites, etc. Cyber criminals employ various methods to launch successful attacks and hijack the computers. Thus, if you do not want to become a victim of GC47 ransomware or other file-encrypting viruses[5], you should be careful when browsing the web. Avoid clicking suspicious links and ads, do not browse through insecure websites, and always choose reliable sources for software installation and downloads. What is more, don’t forget that malware might appear in your inbox as a legitimate message and safe-looking document. Thus, be vigilant!

How to treat GC47 ransomware virus?

After the attack, you have to focus on GC47 removal. We recommend employing powerful and professional malware removal tools such as Reimage Reimage Cleaner Intego or Malwarebytes. These programs are capable of detecting and eliminating all malicious files and programs from the device. However, you can choose any other program as well. Just make sure that it is reliable! What is more, if you cannot install the program or run a full system scan, you need to reboot your computer to the Safe Mode. The instructions below will show you how to do it. When in Safe Mode, you should try to install or run the security tool again and let it remove GC47 from the system.

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What to do if failed?
If you failed to remove virus damage using Reimage Intego, submit a question to our support team and provide as much details as possible.
Reimage Intego has a free limited scanner. Reimage Intego offers more through scan when you purchase its full version. When free scanner detects issues, you can fix them using free manual repairs or you can decide to purchase the full version in order to fix them automatically.
Alternative Software
Different software has a different purpose. If you didn’t succeed in fixing corrupted files with Reimage, try running SpyHunter 5.
Alternative Software
Different software has a different purpose. If you didn’t succeed in fixing corrupted files with Intego, try running Combo Cleaner.

To remove GC47 virus, follow these steps:

Remove GC47 using Safe Mode with Networking

Reboot the computer to the Safe Mode in order to install or run malware removal tool. When in Safe Mode, run the system scan several times to be sure that GC47 ransomware is eliminated entirely.

  • 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 GC47

    Log in to your infected account and start the browser. Download Reimage Reimage Cleaner Intego or other legitimate anti-spyware program. Update it before a full system scan and remove malicious files that belong to your ransomware and complete GC47 removal.

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

Remove GC47 using System Restore

System Restore method might also help to disable the virus and install malware removal tools. Follow these steps, install your chosen program and scan the system several times.

  • 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 GC47. 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 Reimage Cleaner Intego and make sure that GC47 removal is performed successfully.

Bonus: Recover your data

Guide which is presented above is supposed to help you remove GC47 from your computer. To recover your encrypted files, we recommend using a detailed guide prepared by security experts.

If your files are encrypted by GC47, you can use several methods to restore them:

Use Data Recovery Pro to rescue the files encrypted by GC47 virus

If you do not have data backups, Data Recovery Pro might be your only chance to restore the files. This tool was created to restore corrupted, deleted and encrypted files. Though, we cannot assure that it help to rescue all of your files. It’s not a specific decryption tool for GC47 ransomware virus.

  • Download Data Recovery Pro;
  • Follow the steps of Data Recovery Setup and install the program on your computer;
  • Launch it and scan your computer for files encrypted by GC47 ransomware;
  • Restore them.

Take advantage of Windows Previous Versions feature to restore files encrypted by GC47 ransomware

If System Restore function has been enabled before ransomware attack, please follow the steps below to get back individual files. This method allows traveling back in computer’s time and accessing previously saved copies of the encrypted files.

  • 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”.

GC47 decryptor

We are sorry, but the official decryption software for GC47 ransomware virus hasn’t been released yet.

Finally, you should always think about the protection of crypto-ransomwares. In order to protect your computer from GC47 and other ransomwares, use a reputable anti-spyware, such as Reimage Reimage Cleaner Intego, SpyHunter 5Combo Cleaner or Malwarebytes

Do not let government spy on you

The government has many issues in regards to tracking users' data and spying on citizens, so you should take this into consideration and learn more about shady information gathering practices. Avoid any unwanted government tracking or spying by going totally anonymous on the internet. 

You can choose a different location when you go online and access any material you want without particular content restrictions. You can easily enjoy internet connection without any risks of being hacked by using Private Internet Access VPN.

Control the information that can be accessed by government any other unwanted party and surf online without being spied on. Even if you are not involved in illegal activities or trust your selection of services, platforms, be suspicious for your own security and take precautionary measures by using the VPN service.

Backup files for the later use, in case of the malware attack

Computer users can suffer various losses due to cyber infections or their own faulty doings. Software issues created by malware or direct data loss due to encryption can lead to problems with your device or permanent damage. When you have proper up-to-date backups, you can easily recover after such an incident and get back to work.

It is crucial to create updates to your backups after any changes on the device, so you can get back to the point you were working on when malware changes anything or issues with the device causes data or performance corruption. Rely on such behavior and make file backup your daily or weekly habit.

When you have the previous version of every important document or project you can avoid frustration and breakdowns. It comes in handy when malware occurs out of nowhere. Use Data Recovery Pro for the system restoring purpose.

About the author

Gabriel E. Hall
Gabriel E. Hall - Passionate web researcher

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  1. Brinsley says:
    March 14th, 2017 at 9:06 am

    I hope its not relate to Cerber. I still cannot decrypt my files from that attack..

  2. Leila says:
    March 14th, 2017 at 9:07 am

    Maybe, someone has tried to pay the ransom?

  3. Sequoyah says:
    March 14th, 2017 at 9:08 am

    GC47 ransomware removed, but files are lost…. :/

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