How to remove CrypTron Ransomware

Tips for CrypTron Ransomware removal

CrypTron Ransomware is a malicious malware firstly spotted back in November 2016. It has been coming with various file extensions and improved code since then. This crypto malware uses a strong cipher encryption algorithm to encode all the stored files including documents, audios, videos and other files. According to a particular version, different file appendixes including _crypted, .encrypted, and [file_name]id-[victim’s ID][email protected]_ are added to their filenames after the files encryption. The latest version, spotted on May 2018, uses [email protected] extension.

Rightly after the files encryption process is completed, the ransomware drops a ransom note either in .txt file or .html format having the instructions on how to pay hackers to get a decryption tool/key that helps in the files decryption. The CrypTron Ransomware mainly targets English, Russian and Portuguese computer users, although it can emerge any other part of the world as well. Its authors use RDP or Remote Access Desktop service to brute the attack. Very initially after the intrusion, the ransomware conducts the deletion of system recovery points in order to harden the data recovery process. However, security researchers somehow managed to create free decryptor that help in decrypting the files that CrypTron virus encoded to.

The CrypTron Ransomware is active in world at present and can encrypt any popular files saved on your device. It uses AES-256 encryption cipher for the encryption purpose. During the process, it appends the filenames of the encoded files with any of the following extensions: _crypt,  .encrptd,  .id-[id]_locked, .id-[id]_locked_by_krec  and so on.  After this, the ransomware drops .txt file and .jpg file on the infected device. The first one, Readme_encrypted.txt file, contains a single line stating the files are encrypted and instructing the users to follow instruction provided on the screen. The rest of the essential information is provided directly on the desktop.  The message on the screen states:

Attention!

All data on you PC is encrypted!

To decrypt your data, you need to pay the amounts shown below.

Please note that the payment confirmation may take some time (from 1 hour to 1 day).

All this time, the program must be running and have an internet connection.

After the successful confirmation of payment – decoding will start automatically.

Read more about how to make a payment using Bitcoin can be found on the internet network.

In destination address – specify the Bitcoin address, listed below.

Keep in mind that the services may charge a fee for the payment, it is important that we must …

It is not recommended to attempt to recover the data, or remove this program! This can lead to a complete

loss of your data forever! To restore data, you must be connected to the Internet.

Status:

Bitcoin address: ***

Payment amount: ***

check payment status

Following hackers’ order is not needed as security researchers decoded the ransomware code and managed to create free d ecryptor for this ransomware. Remove the CrypTron Ransomware and use the free Emsisoft decryptor to get the files back in accessible condition once again. For the malware removal, you should use some reputable antivirus tool or follow manual malware removal guide provided below the post.

Distribution methods of the ransomware virus

Ransomware viruses are spread using different techniques, including:

• Remote Desktop Services (RDP) attacks;
• a fake keygen for EaseUS Data Recovery software;
• malicious spam emails

Therefore, it is recommended you to protect or disable RDP services, avoid downloading cracked or illegal programs and be careful with emails. The spam email campaign is quiet common among them and so you should have to learn to stay away from any spam emails and avoid clicking on the clipped attachments provided on them. Additionally, you should keep the installed apps and OS updated so that no any vulnerability will originate on your device to lead malware infection. You should use some reputable antivirus tool for betterment.

Threat Summary

Type: Ransomware

Extension use: _crypt, .encrptd, [file_name].id-[victim’s ID][email protected]_, and many others depend on the variants

 Ransom demanding note: Readme_encrypted.txt, COMO_ABRIR_ARQUIVOS.txt, HOWTODECRYPTFILES.html Ransom amount: 0.05 BTC

Cryptography used: AES-256, SHA-256

Symptoms: Stored files become inaccessible, and their filename gets renamed. Ransom demanding message is displayed on the desktop. Cyber crooks demand ransom payment for the files decryption.

Distribution methods: infected email attachments, torrent sites and malicious ads

Damages: Risk of password stealing Trojan or other dangerous virus intrusion that cause direct damage to the system/software installed

Removal: Use some reputable antivirus tool or follow below mentioned step by step instruction to remove CrypTron Ransomware from the system

Files recovery: Use existing backup. If you do not have such tools, refer data recovery tool provided for you just below the post for the restoration of the damaged files

Remove CrypTron Ransomware

Manual malware removal guide is provided below in step by step manner. Follow it so that you will not find any trouble during removal process. You can use some reputable antivirus tool to automatically remove CrypTron Ransomware from the device.

Antimalware Details And User Guide

Click Here For Windows

Click Here For Mac

Step 1: Remove CrypTron Ransomware through “Safe Mode with Networking”

Step 2: Delete CrypTron Ransomware using “System Restore”

Step 1: Remove CrypTron Ransomware through “Safe Mode with Networking”

For Windows XP and Windows 7 users: Boot the PC in “Safe Mode”. Click on “Start” option and continuously press on F8 during the start process until the “Windows Advanced Option” menu appears on the screen. Choose “Safe Mode with Networking” from the list.

Now, a windows homescreen appears on the desktop and work-station is now working on “Safe mode with networking”.

For Windows 8 Users: Go to the “Start Screen”. In the search results select settings, type “Advanced”. In the “General PC Settings” option, choose “Advanced startup” option. Again, click on the “Restart Now” option. The work-station boots to “Advanced Startup Option Menu”. Press on “Troubleshoot” and then “Advanced options” button. In the “Advanced Option Screen”, press on “Startup Settings”. Again, click on “Restart” button. The work-station will now restart in to the “Startup Setting” screen. Next is to press F5 to boot in Safe Mode in Networking.

For Windows 10 Users: Press on Windows logo and on the “Power” icon. In the newly opened menu, choose “Restart” while continuously holding “Shift” button on the keyboard. In the new open “Choose an option” window, click on “Troubleshoot” and then on the “Advanced Options”. Select “Startup Settings” and press on “Restart”. In the next window, click on “F5” button on the key-board.

Step 2: Delete CrypTron Ransomware using “System Restore”

Log-in to the account infected with CrypTron Ransomware. Open the browser and download a legitimate anti-malware tool. Do a full System scanning. Remove all the malicious detected entries.

In case if you cannot start the PC in “Safe Mode with Networking”, Try using “System Restore”

• During the “Startup”, continuously press on F8 key until the “Advanced Option” menu appears. From the list, choose “Safe Mode with Command Prompt” and then press “Enter”

• In the new opened command prompt, enter “cd restore” and then press “Enter”.

• Type: rstrui.exe and Press “ENTER”

• Click “Next” on the new windows

• Choose any of the “Restore Points” and click on “Next”. (This step will restore the work-station to its earlier time and date prior to CrypTron Ransomware infiltration in the PC.

• In the newly opened windows, press on “Yes”.

Once your PC gets restored to its previous date and time, download the recommended anti-malware tool and perform a deep scanning in order to remove CrypTron Ransomware files if they left in the work-station.

In order to restore the each (separate) file by this ransomware, use “Windows Previous Version” feature. This method is effective when “System Restore Function” is enabled in the work-station.

Important Note: Some variants of CrypTron Ransomware delete the “Shadow Volume Copies” as well hence this feature may not work all the time and is applicable for selective computers only.

How to Restore Individual Encrypted File:

In order to restore a single file, right click on it and go to “Properties”. Select “Previous Version” tab. Select a “Restore Point” and click on “Restore” option.

In order to access the files encrypted by CrypTron Ransomware, you can also try using “Shadow Explorer”. In order to get more information on this application, press here.

Important: Data Encryption Ransomware are highly dangerous and it is always better that you take precautions to avoid its attack on your work-station. It is advised to use a powerful anti-malware tool in order to get protection in real-time. With this help of “SpyHunter”, “group policy objects” are implanted in the registries in order to block harmful infections like CrypTron Ransomware.

Also, In Windows 10, you get a very unique feature called “Fall Creators Update” that offer “Controlled Folder Access” feature in order to block any kind of encryption to the files. With the help of this feature, any files stored in the locations such as “Documents”, “Pictures”, “Music”, “Videos”, “Favorites” and “Desktop” folders are safe by default.

It is very important that you install this “Windows 10 Fall Creators Update” in your PC to protect your important files and data from ransomware encryption. The more information on how to get this update and add an additional protection form rnasomware attack has been discussed here.

How to Recover the Files Encrypted by CrypTron Ransomware?

Till now, you would have understood that what had happed to your personal files that got encrypted and how you can remove the scripts and payloads associated with CrypTron Ransomware in order to protect your personal files that has not been damaged or encrypted until now. In order to retrieve the locked files, the depth information related to “System Restore” and “Shadow Volume Copies” has already been discussed earlier. However, in case if you are still unable to access the encrypted files then you can try using a data recovery tool.

Use of Data Recovery Tool

This step is for all those victims who have already tries all the above mentioned process but didn’t find any solution. Also it is important that you are able to access the PC and can install any software. The data recovery tool works on the basis of System scanning and recovery algorithm. It searches the System partitions in order to locate the original files which were deleted, corrupted or damaged by the malware. Remember that you must not re-install the Windows OS otherwise the “previous” copies will get deleted permanently. You have to clean the work-station at first and remove CrypTron Ransomware infection. Leave the locked files as it is and follow the steps mentioned below.

Step1: Download the software in the work-station by clicking on the “Download” button below.

Step2: Execute the installer by clicking on downloaded files.

Step3: A license agreement page appears on the screen. Click on “Accept” to agree with its terms and use. Follow the on-screen instruction as mentioned and click on “Finish” button.

Step4: Once the installation gets completed, the program gets executed automatically. In the newly opened interface, select the file types that you want to recover and click on “Next”.

Step5: You can select the “Drives” on which you want the software to run and execute the recovery process. Next is to click on the “Scan” button.

Step6: Based on drive you select for scanning, the restore process begins. The whole process may take time depending on the volume of the selected drive and number of files. Once the process gets completed, a data explorer appears on the screen with preview of that data that is to be recovered. Select the files that you want to restore.

Step7. Next is to locate the location where you want to saver the recovered files.