.wvtr0 Virus (Snatch Ransomware) — Removal (UPDATE December 2019)
THREAT REMOVAL

.wvtr0 Virus File (Snatch Ransomware) – How to Remove

This article has been created in order to best explain what is Snatch ransomware and how you can remove it from your computer.

Snatch Ransomware is a virus whose main idea is to enter your computer and encrypt your files using an advanced encryption mode. The outcome of this is all your documents become unusable with the added .wvtr0 file extension to the encrypted files. The main objective of Snatch Ransomware is to drop its ransom note and get you to follow the instructions in it. Read this article to learn more about Snatch Ransomware plus how you can try and decrypt files, encrypted by it on your computer.

Threat Summary

Name.wvtr0 Virus
TypeRansomware, Cryptovirus
Short Description Snatch Ransomware aims to use encryption on your important files and then ask you to pay the sum of $300 to get the files to work again.
Symptoms Snatch Ransomware ads the .wvtr0 extension to the encrypted files and drops a note.
Distribution MethodSpam Emails, Email Attachments, Executable files
Detection Tool See If Your System Has Been Affected by .wvtr0 Virus

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Malware Removal Tool

User ExperienceJoin Our Forum to Discuss .wvtr0 Virus.
Data Recovery ToolWindows 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.

Snatch Ransomware — Technical Analysis Update (Update December 2019)

Shortly after the Snatch release has been used in widespread attacks against users worldwide a detailed analysis was posted online giving further information about the virus activity. There are several distinct areas where the virus is shown to be quite different from other common threats. This is evident from the large number of malicious actions which the main engine can cause.

One of the larger outbreaks in October this year allowed security researchers to discover that after setting itself as a service (by modifying the operating system’s configuration) the virus will restart the system and enter it into Safe Mode. This is an intentional action as in this environment many anti-virus programs will be automatically disabled, alongside other services that may block the Snatch ransomware. The actual encryption will take place only when Safe Mode has been booted.

The surge of attacks indicates that the hackers aim to infect enterprise networks using automated attacks. The security researchers were able to track down several instances where computer hackers were looking for partnership with other criminals in order to deploy the Snatch ransomware. The posts gives an understanding of what the main distribution methods are — manly vulnerable remote desktop control software and services, as well as database servers.

When the hackers hijack an administrative account they will use the available assets in order to take over other hosts available on the network. This is done automatically and includes a very extensive data gathering procedure, some of the information which is hijacked will include the following:

  • WMIC System & User Data
  • Active Processes
  • Services Memory Contents
  • Computer Hardware & Operating System Values Information

All harvested data will be transmitted to a hacker-controlled server via a built-in Trojan module. The data which is to be sent will be prepared in advance and placed in a temporary location before it is sent. After the hackers have acquired the data sets the local ransomware installation will be updated with further dangerous modules. What we know from the log files is that the sequence includes a free program that is used to scan for the presence of other potential victim computers on the same network.

Apart from installing itself as a service the Snatch ransomware will institute a special protective module that will disable attempts of blocking or stopping the execution of the virus by the user. Additionally it has been observed that the main infection engine has the ability to edit out existing strings in the Windows Registry and will also create a new one for the ransomware.

To make recovery more difficult the Snatch virus will search for Shadow Volume Copies of sensitive data which will be deleted.

The ransomware engine will run just like the previous versions however instead of choosing to process all data with a given a extension based on the built-in list, some of the samples have been shown to also include a blacklist — folders which are excluded from the ransomware processing. One of the captured samples shows us which locations are protected:

C:\Windows
C:\recovery
C:\$recycle.bin
C:\perflogs
C:\Program Data\start menu
C:\Program Data\microsoft
C:\Program Data\templates
C:\Program Data\favorites
C:\Program Files\windows
C:\Program Files\perflogs
C:\Program Files\$recycle.bin
C:\Program Files\system volume information
C:\Program Files\common files
C:\Program Files\dvd maker
C:\Program Files\internet explorer
C:\Program Files\reference-assemblies
C:\Program Files\tap-windows
C:\Program Files\windows defender
C:\Program Files\windows journal
C:\Program Files\windows mail
C:\Program Files\windows media player
C:\Program Files\windows nt
C:\Program Files\windows photo viewer

Snatch Ransomware – How Did I Get It and What Does It Do?

The .wvtr0 virus is a new release that is descendant from the Snitch ransomware family which was detected in a recent attack campaign. At the moment there is no information available about the hacking group behind the campaigns. Given the fact that this is a modified version of te former threat it is very possible that the criminals have taken the original source code and modified its configuration options. It is very possible that the most common distribution methods will be used. This includes the setting up of malware file carriers — they are usually dangerous documents (containing virus-infected macros) of all popular formats. The other type is the creation of virus-infected app setup bundles of popular software that is often downloaded by end users.

All of these files can be easily delivered to the intended victims by uploading them to file-sharing networks and also fake download portals. Bear in mind that phishing strategies can also be used to coerce the victims into interacting with them. This can be done either by sending of email messages or even using fake or hacked accounts and posting contents on social networks. Advanced versions of it can infect the target users by carrying the virus code in malware browser plugins.

As soon as the .wvtr0 virus is started on a given machine it will immediately run the built-in modules depending on the local conditions or specific hacker instructions.

The made security analysis of one of the samples shows that the virus is capable of launching a very complex sequence of modules. At the onset of infection one of the first actions which are started are related to initial security bypass. This is a mechanism which will search for any installed security services that can block the ransomware: anti-virus products, firewalls, intrusion detection systems and etc. This will allow the main engine to continue running with the other modules. A common module which will be run is the information gathering one. It will harvest data that can be categorized as either belonging to the machines or personal information about the victims.

What’s more dangerous about the .wvtr0 virus is that it can be used to detect and delete sensitive data — the analyzed samples shows that this is the case with the Shadow Volume Copies. What’s more dangerous is that this ransomware can also access and modify the Windows Registry leading to performance issues and problems with running certain functionality. This can also be connected to the persistent installation — the .wvtr0 virus will be started every time the computer is started and may also block access to the recovery boot options.

Apart from the typical ransomware components the analysis also shows that the main engine will enable a Trojan component which will establish a secure connection to a hacker-controlled server. This allows the criminal group to take over control of the machines. Other actions include the spying of the users and data theft.

When all contained within components have finished running the encryption phase will start. Using a strong cipher target user data will be encrypted by a strong cipher resulting in the renaming of the files with the .wvtr0 extension. The associated ransom note is created in a file called RESTORE_WVTR0_FILES which contains instructions that will blackmail the victims into paying the hackers a decryption fee.

Remove Snatch Ransomware and Try to Restore .wvtr0 Files

For the removal of Snatch Ransomware, we strongly recommend that you follow up the removal instructions below. They are made to help you delete this virus step-by-step by using the manual below. Not only this, but also we strongly recommend that you download and run a scan with an advanced malware removal software. Such software has the capability of running a complete scan of your PC to eliminate all virus files, belonging to Snatch Ransomware plus protect your computer in the future as well.

If you want to try and restore files, encrypted by Snatch Ransomware, our advice is to wait and NOT pay the ransom. Not only you risk getting scammed by the crooks who might want more money, but also there could be free decryption in the near future. Another methods which you can try to restore files are listed below and they may not be 100% effective, but you could still try them.

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Martin Beltov

Martin graduated with a degree in Publishing from Sofia University. As a cyber security enthusiast he enjoys writing about the latest threats and mechanisms of intrusion.

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Windows Mac OS X

How to Remove .wvtr0 Virus from Windows.


Step 1: Boot Your PC In Safe Mode to isolate and remove .wvtr0 Virus

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 .wvtr0 Virus 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 .wvtr0 Virus 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 .wvtr0 Virus 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 .wvtr0 Virus 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 .wvtr0 Virus.

Ransomware infections and .wvtr0 Virus 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:

If the above link does not work for you and your region, try the other two links below, that lead to the same product:

and

2. On the download page, click on the "Download" button:

3. Click on "Save File" button:

4. Accept all agreements and click "Next":

5. After all the "Next" steps, click on "Install" and then wait for the installation to complete:

6. Run the software. Click on the location to scan for missing or deleted files and click on "Scan":

7. Wait for the scan to complete, it may take some time. Be advised that this scan is not 100% guaranteed to recover all files, but it does have some chance to get your data back:


Windows Mac OS X

Get rid of .wvtr0 Virus from Mac OS X.


Step 1: Uninstall .wvtr0 Virus 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 .wvtr0 Virus:

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 .wvtr0 Virus. 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 .wvtr0 Virus. 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 .wvtr0 Virus 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 .wvtr0 Virus. 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.


Step 2: Scan for and remove .wvtr0 Virus files from your Mac

When you are facing problems on your Mac as a result of unwanted scripts and programs such as .wvtr0 Virus, the recommended way of eliminating the threat is by using an anti-malware program. Combo Cleaner offers advanced security features along with other modules that will improve your Mac’s security and protect it in the future.


Step 3 (Optional): Try to Restore Files Encrypted by .wvtr0 Virus on your Mac.

Ransomware for Mac .wvtr0 Virus aims to encode all your files using an encryption algorithm which may be very difficult to decode, unless you pay money. This is why we have suggested a data recovery method that may help you go around direct decryption and try to restore your files, but only in some cases. 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 recommended Data Recovery Mac app by clicking on the link underneath:

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