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Tag: Remove Greystars and restore ‘.greystars@protonmail.com’ encrypted files on MAC OS

Remove Greystars Ransomware and recover .greystars@protonmail.com files

‘Greystars’-Threat In Detail

‘Greystars’ is the file-encrypting threat for the computer users that uses AES-256 and RSA-2048 encryption algorithm to encrypt data on the targeted system. After that, it appends .greystars@protonmail.com as the file extension which means the file are locked with private key which could not be accessed by any program. Greystars Ransomware leaves a file named as “HOW-TO-RECOVER-YOUR-FILES.HTML” on the desktop for the victims which contains the ransom note and instructions on how to get the files back. The ransom demanded by the authors of the Greystars is the 0.08 BTC.

The payloads of the threat is being distributed through spam mail attachments, fake software updates and exploits. Once the threat is dropped, it installs its .exe files and forcefully restarts the attacked machine. And once successfully installed, Greystars Ransomware starts scanning the system for various files like documents, images, videos, audio, pdfs and many more to encrypt them.
After the encryption been done the files are appended with ‘.greystars @ protonmail.com extension. For example: ‘blackpanther.jpg’ is renamed to ‘blackpanther.jpg.greystars @ protonmail.com’. The encrypted files are no more accessible by any media or applications.
‘Greystars’ Ransomware deletes the shadow volume copies of the encrypted files and also may hinder the Window’s system recovery feature. The threat reboots the machine after the successfully completion of the encryption process.
‘Greystars’ Ransomware leaves the ransom note on the desktop of the attacked computer named as ‘HOW-TO-RECOVER-YOUR-FILES.HTML’.

The text in the ransom note appears as:

All your files have been encrypted!
How to recover your files?
All your files have been encrypted by RSA and AES due to a security problem on your PC.You have to pay for decryption of Bitcoins.
If you want to restore them.You must send 0.08 bitcoin to my bitcoins address 1JnRP8UsTDLRjzCTaJXYPr5oYkKc7bLY2Q .
After payment, we will send you the decryption tool that will decrypt all your files.
Please write us to the email greystars@protonmail.com.
Your decrypt code is XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
Please write the decrypt code in the title of your email message. And don’t forgot to write the transfer accounts info.
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.
The Web Site address is https://localbitcoins.com/,or other websites.
Attention!
1.Do not rename encrypted files.
2.Do not try to decrypt your data using third party software.It may cause permanent data loss.

Victims of ‘Greystars’ Ransomware are instructed to contact the authors to the email address ‘greystars@protonmail.com’. After that, the authors further instruct the victim on how much ransom to be paid to unlock the files. The ransom should be paid in Bitcoin by transferring them to the said Bitcoin wallet address.
Users are advised not to pay the ransom as there are no any evidences of victims getting back their files after paying the ransom. So its is recommended to try recovering your files from backups and quickly remove ‘Greystars’ Ransomware from the infected computer.

However, there is no any guarantee that they will decrypt all the files after receiving the payment. Thus, security researchers advise not to pay the ransom to the authors of ‘Greystars’ and quickly remove the threat from the PC. Also, you can try recovering your data from backups if any or take the help of data recovery software programs.


Methods to remove ‘Greystars’ from the computer

If you have ‘Greystars’ dropped inside, then your computer might also be infected with other spyware and potentially unwanted programs. You can try removing those manually, but manual method may not help you out fully to remove all the threats as they can regenerate itself if a single program code remain inside. Also, manual method requires very much proficiency in registry and program details, ant single mistake can put you in big trouble. Your computer may even crash down in the middle.

Thus, Security researchers and virus experts always recommend using powerful and effective anti-spyware scanner and protector tool to completely remove the spyware or other potentially unwanted software from the infected computer system or other device.

Automatic ‘Greystars’ Removal solution

SpyHunter has got all the feature that can help to remove ‘Greystars’ from the infected computer and also prevent the other threats to attack the device in future. Once SpyHunter starts to run in the background, it will keep up notified if any threat or PUP tries to enter. Another feature of SpyHunter is that, whenever you install any new program it will Dangerous scan the program and if it is not from any trusted source, it will notify you. Thus you can choose yourself either to go through the next installation step or stop right there.

Scan for ‘Greystars’ Ransomware virus On the computer.

Important: Before you start any removal process, we highly recommend you to backup rest of your data to cloud to prevent your important files and documents from getting lost, the best recommended option is to store your data over the cloud. Download ZipCloud which is very Successful for both MAC and windows PC based computers. It will keep your data safe as well as secure from cyber threats. ZipCloud also has features of Sync and Backup to Mobile and Tablet apps (Android included).

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Step:1 (Recommended) ‘Greystars’ virus may not allow you to download and Install any security program so “Dangerous Reboot your PC in the Safe mode” and then try downloading the Spyhunter.exe program from the download button below:

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SpyHunter 4 Features

Spyhunter 4 Compact OS allows your computer system to boot without windows so removal of malware and other stubborn infections may be easy.http://totalsystemsecurity.com/wp-content/uploads/2015/10/Spyhunter-1.jpg
Spyhunter System Guards will identify and block any malicious processes in real-time. Besides it allow to take full control of all processes that run on your computer.Scanning-SpyHunter

Spyhunter Scan

The brand new advantage of the software is this feature providing the list of even the most malicious malware. After a complete and advanced system scan is conducted, the user can quickly have all system threats removed – even the ones which were not found by other anti-spyware programs.Spyware-HelpDesk

Spyware-HelpDesk
It is important to emphasize that the systems having Spyhunter installed are protected from all types of existing malware. The program traces and completely deletes adware, spyware, keyloggers, rootkits and other threats including trojans and worms. None of the malware is now able to steal your personal data and use it against you.

It is very important to protect your system from future attacks. You can do it by Downloading Ransomware Defender that deals with known ransomware in a way no other solution can. Specially designed for detecting and blocking ransomware prior to any damage, Ransomware Defender blacklists and stops both common and unique ransomware. Once installed, Ransomware Defender stands guard 24/7 utilizing active protection algorithms enhanced with user-friendly alerts and notifications system.
Ransomware Defender is fully automated, taking care of all threats via an advanced Scan > Detect > Lock Down mechanism that proactively stands guard to detected threats, and works alongside all main anti viruses and anti-malware products!

'Greystars' Ransomware

Ransomware Defender also features a scheduled automatic scan, secured file eraser, lifetime updates and support!

Ransomware defender2 download

Manually Remove ‘Greystars’ using System Restore

Step:-1 Reboot your computer in “Safe Mode with Command Prompt”

windows-xpWindows 7 / Vista / XP

  • Click Start Shutdown Restart OK.
  • When your computer becomes active, start pressing F8 multiple times until you see the Advanced Boot Options window
  • Select Command Prompt from the list
  • Once the Command Prompt window shows up, enter “cd restore and click Enter.
  • Now type rstrui.exe and press Enter again..

 

windows-8Windows 8 / Windows 10

  • Press the Power button at the Windows login screen. Now press and hold Shift, which is on your keyboard, and click Restart..
  • Now select Troubleshoot Advanced options Startup Settings and finally press Restart.
  • Once your computer becomes active, select Enable Safe Mode with Command Prompt in Startup Settings window.
  • Once the Command Prompt window shows up, enter “cd restore and click Enter.
  • Now type rstrui.exe and press Enter again..

Step2 (Manual Way):-After that a new window will open up, now you have to click Next and select your restore point. Note the restore point should be the date before the attack of ‘Greystars’. After that click Next.

  • Select the Restore point and click “Next”
  • Now click Yes to start system restore.

Now Reboot the computer and run the scanner to detect any threat or suspicious program remaining inside. If you are not satisfied with the results and still see the issues, We recommend using the automatic ‘Greystars’ Removal Tool for complete removal.

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Step2 (Automatic Clean up of Registry):- 3 Remove all Registry Entries added by ‘Greystars’

We Recommend you the Regcure which features a complete suite of easy-to-use fixing, cleaning and optimizing tools that can increase speed and peak performance.

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regcuresystemscanregcure1 regcuresettings regcuretools

How to Recover Encrypted files

Step:-4 The most important one is to recover the encrypted files.

However you can do it manually, if you have any backup or from previous versions of windows called shadow copies. If don’t have any of them then try recovering your important files from Advanced Stellar Windows Recovery Tool.

Click here to Download the Recover the encrypted files with Data Recovery tool

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Now Reboot the computer and run the scanner to detect any threat or suspicious program remaining inside. If you are not satisfied with the results and still see the issues, We recommend using the automatic ‘Greystars’ Removal Tool for complete removal.

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For MAC users it is recommended to Download MACKEEPER-3 easy steps to clean your Mac!

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Just follow 3 steps to Remove all unwanted programs from your PC along with optimizing Your MAC OS.

  • Download MacKeeper to your Mac.downloadmac
  • Follow two easy steps to install MacKeeper.downloadscreen_9_2_en
  • Drag the MacKeeper icon from the Applications folder to your Dock.

mackeeper-system-scanMacKeeper will start a system scan on your MAC PC and will present the full report of the scan.


Experts Guide To Prevent Future Attacks

The following steps will guide you to reduce the risk of infection further.

  • Scan all files with an Internet Security solution before transferring them to your system.
  • Only transfer files from a well known source.
  • Always read carefully the End User License agreement at Install time and cancel if other “programs” are being installed as part of the desired program.
  • When visiting a website, type the address directly into the browser rather than following a link.
  • Do not provide personal information to any unsolicited requests for information.
  • Don’t open attachments or click on Web links sent by someone you don’t know.
  • Keep web browser up to date and computer is configured securely.

Get back to..

‘Greystars’ Overview

Technical Details of ‘Greystars’

Automatic ‘Greystars’ Removal solution

Recover Encrypted Files


****For MAC users it is recommended to Download MACKEEPER-3 easy steps to clean your Mac!****

****For Windows users it is recommended to Download Spyhunter most trusted Anti-spyware ****

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