How to remove WaifuClub Ransomware and decrypt .svh or .wis files

What is WaifuClub Ransomware

Ransomware represents one of the most insidious types of malware affecting users worldwide, and WaifuClub Ransomware is a variant that has been causing distress for many. This article delves into the specifics of WaifuClub ransomware, exploring its infection methods, the file extensions it employs, the encryption it utilizes, the ransom note it generates, the availability of decryption tools, and the potential for decrypting .svh or .wis files. Upon successful infection, WaifuClub ransomware begins the encryption process, which is designed to lock users out of their own files. It appends specific extensions to the encrypted files, which can include “.lock” or variations that contain contact information for the cybercriminals, such as .[[random-id]].[[backup@waifu.club]].svh or .[[random-id]].[[MyFile@waifu.club]].wis as noted in the search results. The ransomware uses sophisticated encryption algorithms, and without the decryption key, it is nearly impossible for victims to regain access to their files. WaifuClub ransomware generates a ransom note that instructs victims on how to proceed. This note is typically named FILES ENCRYPTED.txt and is placed on the user’s desktop or within folders containing encrypted files. The note includes contact details for the cybercriminals, often multiple email addresses, and demands payment, usually in Bitcoin, in exchange for the decryption key.

As of the information available, there are no specific decryption tools for WaifuClub ransomware that can guarantee the recovery of .svh files or other encrypted files. This is due to the complexity of the encryption algorithm used, which requires a unique decryption key. Victims are advised against paying the ransom, as this does not guarantee file recovery and further incentivizes criminal activity. The unfortunate reality is that decrypting files affected by WaifuClub ransomware, such as those with the .svh extension, is not feasible without the unique decryption key held by the attackers. However, victims can take certain steps in an attempt to recover their data:

Check for Backups: If backups were made prior to the infection, files can be restored from there.
Shadow Copies: In some cases, Windows may have created shadow copies of the files, which can sometimes be used to restore data.
File Recovery Software: While not specifically designed for ransomware, file recovery software can sometimes recover deleted versions of files. Try Stellar Data Recovery Professional.
No More Ransom Project: This initiative provides tools and resources for ransomware victims and may offer solutions for certain types of ransomware in the future.

How WaifuClub Ransomware infects computers

WaifuClub ransomware typically infiltrates computers through common vectors that are exploited by many types of ransomware. These can include:

Infected Email Attachments: Users may receive emails that appear legitimate but contain malicious attachments. When these attachments are opened, the ransomware is executed on the user’s system.
Malicious Ads: Sometimes referred to as “malvertising,” these ads can redirect users to compromised websites that automatically download ransomware.
Compromised Websites: Visiting a website that has been hacked can result in the automatic download of ransomware.
Torrent Websites: Downloading files from peer-to-peer networks or torrent websites can also be a source of infection.
Software Vulnerabilities: Exploiting unpatched vulnerabilities in software can provide an entry point for the ransomware.

1. Download WaifuClub Ransomware Removal Tool
2. Get decryption tool for .svh or .wis files
3. Recover encrypted files with Stellar Data Recovery Professional
4. Restore encrypted files with Windows Previous Versions
5. Restore files with Shadow Explorer
6. How to protect from threats like WaifuClub Ransomware

WaifuClub Ransomware files:


Avast (Win32:RansomX-gen [Ransom])
{randomname}.exe


WaifuClub Ransomware registry keys:

no information

How to decrypt and restore .svh or .wis files

Use automated decryptors

Download Kaspersky RakhniDecryptor

Use the following tool from Kaspersky called Rakhni Decryptor, that can decrypt .svh or .wis files. Download it here:

There is no purpose to pay the ransom because there is no guarantee you will receive the key, but you will put your bank credentials at risk.

Dr.Web Rescue Pack

Famous antivirus vendor Dr. Web provides free decryption service for the owners of its products: Dr.Web Security Space or Dr.Web Enterprise Security Suite. Other users can ask for help in the decryption of .svh or .wis files by uploading samples to Dr. Web Ransomware Decryption Service. Analyzing files will be performed free of charge and if files are decryptable, all you need to do is purchase a 2-year license of Dr.Web Security Space worth $120 or less. Otherwise, you don’t have to pay.

If you are infected with WaifuClub Ransomware and removed from your computer, you can try to decrypt your files. Antivirus vendors and individuals create free decryptors for some crypto-lockers. To attempt to decrypt them manually, you can do the following:

Use Stellar Data Recovery Professional to restore .svh or .wis files

1. Download Stellar Data Recovery Professional.
2. Click Recover Data button.
3. Select the type of files you want to restore and click Next button.
4. Choose the location where you would like to restore files from and click Scan button.
5. Preview found files, choose ones you will restore and click Recover.

Using Windows Previous Versions option:

1. Right-click on infected file and choose Properties.
2. Select Previous Versions tab.
3. Choose a particular version of the file and click Copy.
4. To restore the selected file and replace the existing one, click on the Restore button.
5. In case there are no items in the list, choose an alternative method.

Using Shadow Explorer:

1. Download Shadow Explorer program.
2. Run it, and you will see a screen listing of all the drives and the dates that shadow copy was created.
3. Select the drive and date that you want to restore from.
4. Right-click on a folder name and select Export.
5. In case there are no other dates in the list, choose an alternative method.

If you are using Dropbox:

1. Login to the Dropbox website and go to the folder that contains encrypted files.
2. Right-click on the encrypted file and select Previous Versions.
3. Select the version of the file you wish to restore and click on the Restore button.

How to protect computer from viruses, like WaifuClub Ransomware, in future

1. Get special anti-ransomware software

Use ZoneAlarm Anti-Ransomware

ZoneAlarm Anti-Ransomware Dashboard

ZoneAlarm Anti-Ransomware Alert

ZoneAlarm Anti-Ransomware Blocked

Famous antivirus brand ZoneAlarm by Check Point released a comprehensive tool, that will help you with active anti-ransomware protection, as an additional shield to your current protection. The tool provides Zero-Day protection against ransomware and allows you to recover files. ZoneAlarm Anti-Ransomware is compatible with all other antiviruses, firewalls, and security software except ZoneAlarm Extreme (already shipped with ZoneAlarm Anti-Ransomware) or Check Point Endpoint products. The killer features of this application are: automatic file recovery, overwrite protection that instantly and automatically recovers any encrypted files, file protection that detects and blocks even unknown encryptors.

2. Back up your files

As an additional way to save your files, we recommend online backup. Local storage, such as hard drives, SSDs, flash drives, or remote network storage can be instantly infected by the virus once plugged in or connected to. WaifuClub Ransomware uses some techniques to exploit this. One of the best services and programs for easy automatic online backup is iDrive. It has the most profitable terms and a simple interface. You can read more about iDrive cloud backup and storage here.

3. Do not open spam e-mails and protect your mailbox

Malicious attachments to spam or phishing e-mails are the most popular method of ransomware distribution. Using spam filters and creating anti-spam rules is good practice. One of the world leaders in anti-spam protection is MailWasher Pro. It works with various desktop applications and provides a very high level of anti-spam protection.