How to remove Kashima Ransomware and decrypt .KASHIMA files

What is Kashima Ransomware

Kashima (KashimaWare) is a ransomware program – the type of malicious software designed to encrypt data and demand money for its return. Unlike other infections of this kind, the virus targets specific and quite unusual file formats – .config, .cfg, .js, .NOOB, .lua, .lw, and .tryme as well. It therefore modifies them with the .KASHIMA extension. For instance, a file like 1.js will change to 1.js.KASHIMA, 1.cfg to 1.cfg.KASHIMA and so forth with other affected data. As soon as this process gets done, Kashima displays a pop-up message (KashimaWare WARNING!) accross the whole screen.

The pop-up message design is similar to the one used by another popular and devastating ransomware virus called Rensenware. Unfortunately, it is unclear what developers want from their victims. There are neither contact nor payment details that victims could use to purchase a special decryptor. This means decrypting data with the help of cybercriminals is completely impossible. Such an absence of payment information most likely says this ransomware is was spread as somebody’s joke or experiment to test how it works before releasing the full version. As a rule, decrypting data without swindlers themselves is quite an undoable task with most file-encryptors. However, since Kashima is supposedly under development, there can be some flaws allowing to decipher the data. You can give it a try using our instructions below or recover your data through backup copies instead. Note that it is a must to delete the infection first and only then attempt to restore or decrypt your files. Follow our tutorial below to get more details on this.

How Kashima Ransomware infected your computer

Ransomware developers use a variety of channels to spread their malware – trojans, unprotected RDP configuration, phishing techniques, fake software installers/updates, backdoors, keyloggers, and dozens of other malicious vectors. Despite such an abundance of methods, many crooks are e-mail spam proponents. They send a buttload of spam messages disguised as legitimate letters. Usually, these letters contain malicious attachments or links designed to install a virus. After interacting with them as said in such letters, the virus will be unleashed and infect a system. You can avoid it by ignoring such messages and deleting them from your inbox. To be more protected against threats like Kashima Ransomware in the future, it is a general rule to be more careful and less naive towards suspicious content you see on the web. Explore our guide below for broader advice and working tools to secure yourself and data as well.

1. Download Kashima Ransomware Removal Tool
2. Get decryption tool for .KASHIMA 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 Kashima Ransomware

Kashima Ransomware files:


KashimaWare WARNING!
{randomname}.exe


Kashima Ransomware registry keys:

no information

How to decrypt and restore .KASHIMA files

Use automated decryptors

Download Kaspersky RakhniDecryptor

Use following tool from Kaspersky called Rakhni Decryptor, that can decrypt .KASHIMA files. Download it here:

Download RakhniDecryptor

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 .KASHIMA 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 Kashima 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 .KASHIMA files

1. Download Stellar Data Recovery Professional.
2. Click Recover Data button.
3. Select type of files you want to restore and click Next button.
4. Choose 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.

Download Stellar Data Recovery Professional

Using Windows Previous Versions option:

1. Right-click on infected file and choose Properties.
2. Select Previous Versions tab.
3. Choose 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 is no items in the list choose alternative method.

Using Shadow Explorer:

1. Download Shadow Explorer program.
2. Run it and you will see 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 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 Kashima Ransomware, in future

1. Get special anti-ransomware software

Use ZoneAlarm Anti-Ransomware

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.

Download ZoneAlarm Anti-Ransomware

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. Kashima 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.

Download MailWasher Pro