D0glun Ransomware: Understanding, Removal, and Prevention

D0glun is a dangerous ransomware-type virus designed to encrypt files on infected systems and demand a ransom payment from victims.

Overview of D0glun Ransomware

D0glun is a crypto-virus that locks a victim’s files and demands a ransom for their decryption. After infecting a system, the ransomware encrypts files, appends a unique extension to their names, and leaves behind a ransom note demanding payment in Bitcoin.

How D0glun Works

Upon infection, D0glun encrypts a wide variety of file types, including ZIP, RAR, TXT, JPG, PNG, MP4, and others. The file names are modified to include an extension following this pattern: “.@D0glun@[original_extension]”. For example, a file named “1.jpg” would become “1.jpg.@D0glun@jpg”.

Once the encryption is complete, the ransomware changes the desktop wallpaper and displays a ransom note in a pop-up window. If the system lacks the proper Chinese characters, the ransom note will appear as gibberish. The text in the ransom note demands payment in Bitcoin for decryption but offers no guarantee that the files will be restored.

Threat Summary of D0glun

Attribute	Details
Threat Type	Ransomware, Crypto Virus, File Locker
Encrypted File Extension	.@D0glun@[original_extension]
Ransom Note File Name	Pop-up message displayed on desktop
Ransom Payment Method	Bitcoin (cryptowallet address: 1M7JVws3HccTGd14CV3qX21G7gzcJj77UH)
Free Decryptor Available?	No
Cyber Criminal Contact	Tor network website
Detection Names	Avast: Win32:MalwareX-gen [Trj], Combo Cleaner: Trojan.GenericKD.75468564, ESET-NOD32: Win32/Filecoder.OBT, Kaspersky: Trojan-Ransom.Win32.Encoder.abxc, Microsoft: Ransom:Win32/Avaddon!rfn
Symptoms of Infection	Files become inaccessible, extensions changed, ransom message displayed
Damage	Encryption of files, potential additional malware installation
Distribution Methods	Infected email attachments, torrent websites, malicious ads
Danger Level	High

Ransom Note Overview

The ransom note delivered by D0glun includes a message in Chinese, stating that the victim's files have been encrypted. It informs the victim that decryption is only possible upon payment in Bitcoin, but it does not specify the ransom amount. It also warns against using antivirus software, suggesting that doing so might render the encrypted files irrecoverable.

Here’s a rough translation of the ransom note:

• "Your files have been encrypted. Don't try any antivirus software, as it may make your files irrecoverable."
• "To decrypt your files, please visit the following address: [Tor link]."
• "This is my Bitcoin wallet address: 1M7JVws3HccTGd14CV3qX21G7gzcJj77UH."

How D0glun Spreads

Ransomware like D0glun typically spreads through:

• Infected email attachments: Emails with malicious attachments like macros or executable files can infect your computer when opened.
• Torrent websites: D0glun may be bundled with pirated software downloaded from illegal sources.
• Malicious ads: Clicking on deceptive or compromised ads can trigger the download of the ransomware.
• Drive-by downloads: Malicious websites can exploit vulnerabilities in browsers to deliver ransomware.

Symptoms of Infection

Upon infection, victims of D0glun ransomware may notice the following symptoms:

• Inability to open files that were previously accessible.
• The file extension is altered (e.g., “.docx” becomes “.docx.@D0glun@docx”).
• A ransom message appears on the desktop, and the desktop wallpaper changes.

Damage Caused by D0glun

The main damage caused by D0glun is the encryption of files, making them unusable without the decryption key, which is held by the attackers. Furthermore, in some cases, additional malware such as password-stealing trojans can be installed alongside the ransomware.

The encryption affects a variety of file types, including text files, images, videos, and compressed archives, making it devastating for individuals and businesses that rely on these files.

How to Remove D0glun?

To eliminate D0glun ransomware and prevent further infections, it is essential to use a reliable malware removal tool like SpyHunter. Below is a step-by-step guide on how to use SpyHunter for ransomware removal:

Step 1: Download and Install SpyHunter

1. Download SpyHunter.
2. Run the installation file and follow the on-screen instructions to install SpyHunter.

Step 2: Update SpyHunter

1. Open SpyHunter.
2. Go to the "Update" tab and ensure that SpyHunter is updated with the latest malware definitions.

Step 3: Perform a Full System Scan

1. Click on the “Scan” button to initiate a full system scan.
2. Allow SpyHunter to thoroughly check your computer for D0glun and any other potential threats.

Step 4: Remove Detected Threats

1. After the scan is complete, review the results.
2. Click on “Fix Threats” to remove D0glun and any other detected malware from your system.

Step 5: Restart Your Computer

Once the removal process is complete, restart your computer to ensure that all malicious files are fully removed.

Step 6: Restore Your Files (if possible)

1. If you have a backup of your encrypted files, restore them from the backup.
2. If no backup is available, you may need to consult a professional for possible recovery options.

Preventive Measures to Avoid Future Infections

To protect your system from future D0glun and other ransomware infections, consider the following preventive methods:

1. Regular Backups: Keep multiple backups of important files in separate locations (e.g., external hard drives, cloud storage) to ensure you can recover data after a ransomware attack.
2. Use Reliable Antivirus Software: Ensure that your system is protected by up-to-date antivirus software like SpyHunter, which can help detect and block ransomware before it executes.
3. Avoid Suspicious Links and Email Attachments: Be cautious when clicking on email links or downloading attachments, especially from unknown senders.
4. Keep Software Updated: Regularly update your operating system, browsers, and software to patch vulnerabilities that malware can exploit.
5. Use Ad Blockers: Install reputable ad-blocking software to protect against malicious ads that might deliver ransomware.

Conclusion

D0glun is a highly dangerous ransomware that encrypts victims' files and demands Bitcoin payment for decryption. If infected, it is essential to remove the ransomware immediately using SpyHunter or other reputable malware removal tools. Additionally, following best practices like regular backups and cautious browsing can help prevent future infections.