THREAT REMOVAL

.Sinta Files Virus – How to Remove SintaLocker + Restore Files

This article has been created to help you by explaining how to remove the .Sinta files virus, called SintaLocker and show how to restore .sinta encrypted files by this ransomware without paying.

A new virus from the file encryption kind has been detected out in the wild, encrypting the files on victims computers and then adding the .sinta file extension afterwards. The virus then drops a ransom note type of file, named “README_FOR_DECRYPT.md” which aims to extort the victims into paying a hefty ransom of $100 USD in BitCoin in order to get the files decrypted back to normal once more. In the event that your computer has been infected with .sinta files virus, we recommend that you read the following article to learn how to remove this ransomware from your computer and how to try and recover your encrypted files without having to pay any ransom.

Threat Summary

Name SintaLocker
Type Ransomware, Cryptovirus
Short Description Encrypts the files on your computer after which asks you to pay the sum of $100 as a ransom to get them to work again.
Symptoms Files are encrypted with an added .sinta file extension and a ransom note, called README_FOR_DECRYPT.md is dropped as well.
Distribution Method Spam Emails, Email Attachments, Executable files
Detection Tool See If Your System Has Been Affected by malware

Download

Malware Removal Tool

User Experience Join Our Forum to Discuss SintaLocker.
Data Recovery Tool Windows Data Recovery by Stellar Phoenix Notice! This product scans your drive sectors to recover lost files and it may not recover 100% of the encrypted files, but only few of them, depending on the situation and whether or not you have reformatted your drive.

.sinta Files Ransomware – How Did I Get Infected

The primary method of infection which has been detected to be associated with SintaLocker is malicious spammed e-mails whose primary purpose is to get victims to open a malicious e-mail attachment, usually disguised as a legitimate type of file. Such files may pretend to be:

  • Documents.
  • Receipts.
  • Invoices.
  • Banking statements.
  • Financial reports.

The malicious files being spread may come in different ways:

  • Via malicious macros embedded in legitimate Microsoft Office documents.
  • Via links to Dropbox and other types of online services that lead to external file sharing sites.
  • Via malicious attachment directly uploaded as an e-mail attachment in an archive.

The messages that may accompany the e-mail attachments are of convincing nature and they stress on the importance of the attachments embedded. Here is an example of such message:

Analysis of SintaLocker Ransomware

Once the SintaLocker virus has infected your computer, the malware may connect to a distribution host via an unsecured port on your computer system. From there, SintaLocker drops it’s malicious files on your computer system. They are primarily located In the commonly targeted by malware Windows Directories:

  • %AppData%
  • %Local%
  • %LocalLow%
  • %Roaming%

Since SintaLocker is a CryPy ransomware variant, the virus may drop files of the following file types under different, often random names:

→ .exe, .tmp, .bat, .cmd, .dll, .vbs, etc.

As soon as the payload of SintaLocker CryPy variant is dropped, the malware may start to modfy your computer by firstly obtaining administrative permssions. Only then, the .sinta files virus may attack your Windows Registry Editor and set custom registry keys in it that may allow it to run automatically on system start up. The targeted sub-keys for this purpose are the followng:

  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce
  • Texttt
  • Texttt
  • Texttt

In addition to this activity, the SintaLocker ransomware may also delete your shadow volume copies by running a malicious script in the background of your computer which uses the vssadmin and bcedit commands:

→ process call create “cmd.exe /c vssadmin.exe delete shadows /all /quiet & bcdedit.exe /set {default} recoveryenabled no & bcdedit.exe /set {default} bootstatuspolicy ignoreallfailures”

After this is complete, the SintaLocker ransomware may also drop it’s ransom note file, which may either be in the .md file format or in .txt document. Either way, the file is named README_FOR_DECRYPT and has the following content In it:

! ! OWNED BY SintaLocker ! ! !

All your files are encrypted by SintaLocker with strong chiphers.
Decrypting of your files is only possible with the decryption program, which is on our secret server.
All encrypted files are moved to __SINTA I LOVE YOU__ directory and renamed to unique random name.
To receive your decryption program send $100 USD Bitcoin to address: 1NEdFjQN74ZKszVebFum8KFJNd9oayHFT1
Contact us after you send the money: sinpayy@yandex.com

Just inform your identification ID and we will give you next instruction.
Your personal identification ID: {ID}

As your partner,

SintaLocker

SintaLocker’s Encryption Procedure

Similar to CryPy ransomware from which it derives, SintaLocker may also use the same AES-256 encryption algorithm win order to render the files to be no longer openable by the victim. To do this, the virus perfroms the following consequential activities:

1)Encrypts the file using a strong AES-256 encryption algorithm.
2)Generates a unique decryption key.
3)Sends the decryption key to the SintaLocker ransomware’s command and control server.

The SintaLocker ransomware does not encrypt just any file. The virus may targed files that are often used, like the following file types:

  • Documents.
  • Audio files.
  • Videos.
  • Image files.
  • Archives.
  • Files associated with often used programs.

The virus skips encrypting files in the following imporant Windows directories:

→ /WINDOWS/
/SYSTEM/
/SYSTEM32/
%PROGRAM FILES%

After this has been done, the SintaLocker ransomware adds the .sinta file extension to the encrypted files, resulting in them looking like the following:

Remove SintaLocker Ransomware and Restore .sinta Encrypted Files

In order to get rid of this ransomware virus, you will need to isolate it first and then hunt for all the changes it has made on your computer plus the files created by it. You can follow the manual removal instructions below to do this manually. However, malware researchers strongly recommend to download ransomware-specific anti-malware software which will take care of SintaLocker ransomware automatically and make sure that your computer remains protected against other threats as well.

If you want to restore files that have been encrypted by SintaLocker ransowmare, it is strongly advisable to try out the alternative methods for file recovery below in step “2. Restore files encrypted by SintaLocker”. They are specifically designed to help you restore as many files as possible without paying any ransom. Even though they may not be 100% effective, we have received reports on our forums that victims have been able to restore up to 50+ files using those tools.

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Ventsislav Krastev

Ventsislav is a cybersecurity expert at SensorsTechForum since 2015. He has been researching, covering, helping victims with the latest malware infections plus testing and reviewing software and the newest tech developments. Having graduated Marketing as well, Ventsislav also has passion for learning new shifts and innovations in cybersecurity that become game changers. After studying Value Chain Management, Network Administration and Computer Administration of System Applications, he found his true calling within the cybersecrurity industry and is a strong believer in the education of every user towards online safety and security.

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Attention! SensorsTechForum strongly recommends that all malware victims should look for assistance only by reputable sources. Many guides out there claim to offer free recovery and decryption for files encrypted by ransomware viruses. Be advised that some of them may only be after your money.

As a site that has been dedicated to providing free removal instructions for ransomware and malware since 2014, SensorsTechForum’s recommendation is to only pay attention to trustworthy sources.

How to recognize trustworthy sources:

  • Always check "About Us" web page.
  • Profile of the content creator.
  • Make sure that real people are behind the site and not fake names and profiles.
  • Verify Facebook, LinkedIn and Twitter personal profiles.


OFFER

REMOVE IT NOW (PC)
with Anti-Malware
We recommend you to download SpyHunter and run free scan to remove all virus files on your PC. This saves you hours of time and effort compared to doing the removal yourself.
SpyHunter 5 free remover allows you, subject to a 48-hour waiting period, one remediation and removal for results found. Read EULA and Privacy Policy


Windows Mac OS X

How to Remove SintaLocker from Windows.


Step 1: Boot Your PC In Safe Mode to isolate and remove SintaLocker

OFFER

Manual Removal Usually Takes Time and You Risk Damaging Your Files If Not Careful!
We Recommend To Scan Your PC with SpyHunter

Keep in mind, that SpyHunter’s scanner is only for malware detection. If SpyHunter detects malware on your PC, you will need to purchase SpyHunter's malware removal tool to remove the malware threats. Read our SpyHunter 5 review. Click on the corresponding links to check SpyHunter's EULA, Privacy Policy and Threat Assessment Criteria

1. Hold Windows key() + R


2. The "Run" Window will appear. In it, type "msconfig" and click OK.


3. Go to the "Boot" tab. There select "Safe Boot" and then click "Apply" and "OK".
Tip: Make sure to reverse those changes by unticking Safe Boot after that, because your system will always boot in Safe Boot from now on.


4. When prompted, click on "Restart" to go into Safe Mode.


5. You can recognise Safe Mode by the words written on the corners of your screen.


Step 2: Uninstall SintaLocker and related software from Windows

Here is a method in few easy steps that should be able to uninstall most programs. No matter if you are using Windows 10, 8, 7, Vista or XP, those steps will get the job done. Dragging the program or its folder to the recycle bin can be a very bad decision. If you do that, bits and pieces of the program are left behind, and that can lead to unstable work of your PC, errors with the file type associations and other unpleasant activities. The proper way to get a program off your computer is to Uninstall it. To do that:


1. Hold the Windows Logo Button and "R" on your keyboard. A Pop-up window will appear.


2. In the field type in "appwiz.cpl" and press ENTER.


3. This will open a window with all the programs installed on the PC. Select the program that you want to remove, and press "Uninstall"
Follow the instructions above and you will successfully uninstall most programs.


Step 3: Clean any registries, created by SintaLocker on your computer.

The usually targeted registries of Windows machines are the following:

  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce

You can access them by opening the Windows registry editor and deleting any values, created by SintaLocker there. This can happen by following the steps underneath:

1. Open the Run Window again, type "regedit" and click OK.


2. When you open it, you can freely navigate to the Run and RunOnce keys, whose locations are shown above.


3. You can remove the value of the virus by right-clicking on it and removing it.
Tip: To find a virus-created value, you can right-click on it and click "Modify" to see which file it is set to run. If this is the virus file location, remove the value.

IMPORTANT!
Before starting "Step 4", please boot back into Normal mode, in case you are currently in Safe Mode.
This will enable you to install and use SpyHunter 5 successfully.

Step 4: Scan for SintaLocker with SpyHunter Anti-Malware Tool

1. Click on the "Download" button to proceed to SpyHunter's download page.


It is recommended to run a scan before purchasing the full version of the software to make sure that the current version of the malware can be detected by SpyHunter. Click on the corresponding links to check SpyHunter's EULA, Privacy Policy and Threat Assessment Criteria.


2. After you have installed SpyHunter, wait for it to update automatically.

SpyHunter5-update-2018


3. After the update process has finished, click on the 'Malware/PC Scan' tab. A new window will appear. Click on 'Start Scan'.

SpyHunter5-Free-Scan-2018


4. After SpyHunter has finished scanning your PC for any files of the associated threat and found them, you can try to get them removed automatically and permanently by clicking on the 'Next' button.

SpyHunter-5-Free-Scan-Next-2018

If any threats have been removed, it is highly recommended to restart your PC.

Step 5 (Optional): Try to Restore Files Encrypted by SintaLocker.

Ransomware infections and SintaLocker aim to encrypt your files using an encryption algorithm which may be very difficult to decrypt. This is why we have suggested a data recovery method that may help you go around direct decryption and try to restore your files. Bear in mind that this method may not be 100% effective but may also help you a little or a lot in different situations.

1. Download the reccomended Data Recovery software by clicking on the link underneath:

Simply click on the link and on the website menus on top, choose Data Recovery - Data Recovery Wizard for Windows or Mac (depending on your OS), and then download and run the tool.


Windows Mac OS X

Get rid of SintaLocker from Mac OS X.


Step 1: Uninstall SintaLocker and remove related files and objects

OFFER
Manual Removal Usually Takes Time and You Risk Damaging Your Files If Not Careful!
We Recommend To Scan Your Mac with SpyHunter for Mac
Keep in mind, that SpyHunter for Mac needs to purchased to remove the malware threats. Click on the corresponding links to check SpyHunter’s EULA and Privacy Policy


1. Hit the ⇧+⌘+U keys to open Utilities. Another way is to click on “Go” and then click “Utilities”, like the image below shows:


2. Find Activity Monitor and double-click it:


3. In the Activity Monitor look for any suspicious processes, belonging or related to SintaLocker:

Tip: To quit a process completely, choose the “Force Quit” option.


4. Click on the "Go" button again, but this time select Applications. Another way is with the ⇧+⌘+A buttons.


5. In the Applications menu, look for any suspicious app or an app with a name, similar or identical to SintaLocker. If you find it, right-click on the app and select “Move to Trash”.


6: Select Accounts, after which click on the Login Items preference. Your Mac will then show you a list of items that start automatically when you log in. Look for any suspicious apps identical or similar to SintaLocker. Check the app you want to stop from running automatically and then select on the Minus (“-“) icon to hide it.


7: Remove any left-over files that might be related to this threat manually by following the sub-steps below:

  • Go to Finder.
  • In the search bar type the name of the app that you want to remove.
  • Above the search bar change the two drop down menus to “System Files” and “Are Included” so that you can see all of the files associated with the application you want to remove. Bear in mind that some of the files may not be related to the app so be very careful which files you delete.
  • If all of the files are related, hold the ⌘+A buttons to select them and then drive them to “Trash”.

In case you cannot remove SintaLocker via Step 1 above:

In case you cannot find the virus files and objects in your Applications or other places we have shown above, you can manually look for them in the Libraries of your Mac. But before doing this, please read the disclaimer below:

Disclaimer! If you are about to tamper with Library files on Mac, be sure to know the name of the virus file, because if you delete the wrong file, it may cause irreversible damage to your MacOS. Continue on your own responsibility!

1: Click on "Go" and Then "Go to Folder" as shown underneath:

2: Type in "/Library/LauchAgents/" and click Ok:

3: Delete all of the virus files that have similar or the same name as SintaLocker. If you believe there is no such file, do not delete anything.

You can repeat the same procedure with the following other Library directories:

→ ~/Library/LaunchAgents
/Library/LaunchDaemons

Tip: ~ is there on purpose, because it leads to more LaunchAgents.


Click the button below below to download SpyHunter for Mac and scan for SintaLocker:


Download

SpyHunter for Mac



Step 3 (Optional): Try to Restore Files Encrypted by SintaLocker.

Ransomware infections and SintaLocker aim to encrypt your files using an encryption algorithm which may be very difficult to decrypt. This is why we have suggested a data recovery method that may help you go around direct decryption and try to restore your files. Bear in mind that this method may not be 100% effective but may also help you a little or a lot in different situations.

1. Download the reccomended Data Recovery software by clicking on the link underneath:

Simply click on the link and on the website menus on top, choose Data Recovery - Data Recovery Wizard for Windows or Mac (depending on your OS), and then download and run the tool.


SintaLocker FAQ

What is SintaLocker ransomware and how does it work?

SintaLocker is a ransomware infection - the malicious software that enters your computer silently and blocks either access to the computer itself or encrypt your files.

Many ransomware viruses use sophisticated encryption algorithm how to make your files inaccessible. The goal of ransomware infections is to demand that you pay a ransom payment to get access to your files back.

How does SintaLocker ransomware infect my computer?

Via several ways.SintaLocker Ransomware infects computers by being sent via phishing e-mails, containing virus attachment.

This attachment is usually masked as an important document, like an invoice, bank document or even a plane ticket and it looks very convincing to users.

After you download and execute this attachment, a drive-by download occurs and your computer is infected with the ransomware virus.

Another way, you may become a victim of SintaLocker is if you download a fake installer, crack or patch from a low reputation website or if you click on a virus link. Many users report getting a ransomware infection by downloading torrents.

How to open .SintaLocker files?

You can't. At this point the .SintaLocker files are encrypted. You can only open them once they are decrypted.

Decryptor did not decrypt my data. What now?

Do not panic and backup the files. If a decryptor did not decrypt your .SintaLocker files successfully, then do not despair, because this virus is still new.

One way to restore files, encrypted by SintaLocker ransomware is to use a decryptor for it. But since it's a new virus, advised that the decryption keys for it may not be out yet and available to the public. We will update this article and keep you posted as soon as this decryptor is released.

How Do I restore ".SintaLocker" files (Other Methods)?

Yes, sometimes files can be restored. We have suggested several file recovery methods that could work if you want to restore .SintaLocker files.

These methods are in no way 100% guarantee that you will be able to get your files back. But if you have a backup, your chances of success are much greater.

How do I get rid of SintaLocker ransomware virus?

The safest way and the most efficient one for the removal of this ransomware infection is the use a professional anti malware software. It will scan for and locate SintaLocker ransomware and then remove it without causing any additional harm to your important .SintaLocker files.

Also, keep in mind that viruses like SintaLocker ransomware also install Trojans and keyloggers that can steal your passwords and accounts. Scanning your computer with an anti-malware software will make sure that all of these virus components are removed and your computer is protected in the future.

What to Do If nothing works?

There is still a lot you can do. If none of the above methods seem to work for you, then try these methods:

  • Try to find a safe computer from where you can can login on your own line accounts like One Drive, iDrive, Google Drive and so on.
  • Try to contact your friends, relatives and other people so that they can check if they have some of your important photos or documents just in case you sent them.
  • Also, check if some of the files that were encrypted it can be re-downloaded from the web.
  • Another clever way to get back some of your files is to find another old computer, a flash drive or even a CD or a DVD where you may have saved your older documents. You might be surprised what will turn up.
  • You can also go to your email account to check if you can send any attachments to other people. Usually what is sent the email is saved on your account and you can re-download it. But most importantly, make sure that this is done from a safe computer and make sure to remove the virus first.

More tips you can find on our forums, where you can also asks any questions about your ransomware problem.

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