Remove Java ransomware and decrypt .java virus files

Stay on top of the security issue where the latest variant of the CrySiS, or Dharma, ransomware encrypts one’s files and appends them with the .java extension.

There aren’t many crypto ransomware strains that remain consistently active for more than a month. The CrySiS lineage of blackmail viruses, though, is one of these few high-profile infections out there. It has been around for years and keeps on producing spinoffs on a regular basis. As part of the latest makeover, this family has given rise to an edition that blemishes encoded data objects with the .java extension. Whereas filenames are not altered, they are additionally appended with a unique eight-character victim ID, the adversaries’ email address in curly braces, and the above-mentioned suffix. In the upshot of this transformation, a sample file named Preview.png will look similar to this: Preview.png.id-299FBAA5.{decrypthelp@qq.com}.java.

These changes are merely external, though. A much more disconcerting tweak takes place on a deeper level. The .java extension ransomware utilizes cryptography to scramble the inner structure of files so that they become inaccessible for the victim. The prerequisites for regaining this access include the private decryption key and specially crafted recovery software. Both are kept by the threat actors who pulled off the attack in the first place. To notify the user about details of the onslaught, the .java variant of CrySiS/Dharma ransomware drops rescue notes onto the infected computer. One edition of these notes is named Info.hta and pops up automatically. The other is FILES ENCRYPTED.txt, which can be found on the desktop.

The ransomware tells the infected user to send a message to the attackers’ email address and include their unique ID in its title. The emails may vary and depend on the extortion campaign that hit a specific victim. The most widely reported ones are decrypthelp@qq.com, faremar@cock.li, 1778357646@qq.com, black.mirror@qq.com, and chivas@aolonline.top. In response, the extortionists will send detailed instructions regarding the decryption procedure. The prey is told to submit a certain amount of cryptocurrency to the crooks’ wallet, typically somewhere between 0.2-1 Bitcoin. To prove that the deal isn’t bluff, the criminals offer the user to restore up to five files free of charge.

The .java file extension ransomware version of CrySiS is definitely a lot of trouble to come across. This is why prevention comes to the fore. To stay on the safe side, it’s necessary to know how exactly this culprit is distributed. It arrives via compromised remote desktop services, so people who use RDP are strongly recommended to safeguard their connections as reliably as possible. The access credentials should be hard to guess or brute-force and contain at least 10 alphanumeric characters. If the attack has already occurred, try the steps below to see what can be done to sort things out.

.Java ransomware automated removal and data recovery

When faced with ransomware like .Java, one of the best shortcuts in terms of removal is to use Combo Cleaner, a lightweight and incredibly effective application with PC security and optimization features under the hood. It detects and thoroughly deletes threats while giving you insights into the overall health of your computer.

This program’s protection power spans modules that forestall all known types of malware, including ransomware and browser hijackers, and take your online security to the next level by blocking phishing sites and other suspicious web pages. Follow these simple steps to eliminate the infection for good:

1. Download Combo Cleaner installer.

Download .Java remover

^{Combo Cleaner scans your PC with no strings attached, but you’ll have to buy its fully functional version to remove the threats it detects. The disk optimization tools that find large files and duplicates are free to use.}

2. Open the CCSetup.exe file to get started. Several subsequent screens will allow you to make initial customizations so that the program works exactly as you need from the get-go.

3. The installation will be followed by an update of malware signatures. Once this process is through, click the Start Scan button in the left-hand sidebar.

4. Combo Cleaner will then check system locations that are most often polluted by Windows malware. The first scan can take a while to finish.

5. Combo Cleaner will display a system tray notification as soon as the scan is over. Click the Resolve found threats button to view the results.

6. The scan summary shows the names and types of the detected threats as well as their statuses and locations. Click the Remove all threats button and follow further on-screen prompts to get rid of these items.

Data recovery toolkit to the rescue

Some strains of ransomware are known to delete the original files after the encryption routine has been completed. As hostile as this activity appears, it can play into your hands. There are applications designed to revive the information that was obliterated because of malfunctioning hardware or due to accidental removal. The tool called Stellar Data Recovery features this type of a capability and therefore it can be applied in ransom attack scenarios to at least get the most important files back. So use the app to get an idea of what data can be restored and let it do the recovery job. Here is a step-by-step walkthrough:

1. Download and install Stellar Data Recovery.

Download Stellar Data Recovery

2. Open the application, select the types of recoverable files to look for, and click Next.

3. Choose the areas you want the tool to recover from and click the Scan button.

4. Having scanned the specified locations, the program will display a notification about the total amount of recoverable data. Close the dialog and click the Recover button. This will hopefully help you get some of your valuable files back.

.Java ransomware manual removal and file recovery

Some ransomware strains terminate themselves after completing the encryption job on a computer, but some don’t. Furthermore, the .Java virus may prevent victims from using popular antimalware tools in order to stay on board for as long as possible. Under the circumstances, it may be necessary to utilize the Safe Mode with Networking or System Restore functionality.

Be advised that even after the ransomware is removed, files will still be encrypted and inaccessible. The malicious code cleanup part, however, is important because it keeps a relapse of the infection from occurring further on and eliminates all opportunistic malware.

Ways of non-ransom recovery of .java files

Cracking the crypto used by this ransom Trojan is more of a science fiction thing rather than an attainable prospect for the masses. This is why the troubleshooting in predicaments of this sort is a matter of two approaches: one is to pay the ransom, which isn’t an option for many victims; and the other is to apply instruments that take advantage of the ransomware’s possible weaknesses. If the latter is your pick, the advice below is a must-try.

Ransomware Prevention Tips

To avoid .Java ransomware and other file-encrypting infections in the future, follow several simple recommendations:

These techniques are certainly not a cure-all, but they will add an extra layer of ransomware protection to your security setup.

Revise your security status

Post-factum assessment of the accuracy component in malware removal scenarios is a great habit that prevents the comeback of harmful code or replication of its unattended fractions. Make sure you are good to go by running an additional safety checkup. Another benefit of using the antimalware tool is that it will keep ransomware threats from intruding on your computer further on.

Download .Java removal tool