DarkN1ght Ransomware: A Detailed Guide to Understanding and Removing the Threat

What Is DarkN1ght Ransomware?

DarkN1ght is a malicious ransomware variant based on the Chaos ransomware family. This malware is designed to encrypt files on an infected system, making them inaccessible to the user until a ransom is paid. DarkN1ght appends a unique extension—consisting of four random characters—to encrypted files, rendering them unusable. The ransomware also leaves behind a ransom note titled “read_it.txt,” demanding payment in exchange for a decryption key.

Key Characteristics of DarkN1ght Ransomware

Once DarkN1ght infiltrates a system, it immediately encrypts files and renames them by appending a random extension. For example:

• 1.jpg becomes 1.jpg.3hok
• 2.png becomes 2.png.7oyv
• 3.exe becomes 3.exe.6003

The ransom note, written in both English and Vietnamese, claims that victims can recover their files by contacting the attackers at hot90923@gmail.com and paying the ransom. Despite these promises, victims are strongly discouraged from paying the ransom as there is no guarantee of file recovery.

How DarkN1ght Ransomware Spreads

DarkN1ght, like other ransomware, uses various distribution methods to infect systems. These include:

1. Phishing Emails: Malicious attachments or links in emails.
2. Malicious Ads: Ads that lead to infected downloads.
3. Pirated Software: Hidden ransomware in cracked tools or key generators.
4. Exploit Kits: Targeting software vulnerabilities.
5. Infected USB Drives: Physical transmission of the ransomware.

Actions and Consequences of a DarkN1ght Infection

Consequences

• File Encryption: All files on the system are encrypted.
• Ransom Note Displayed: Victims are presented with the “read_it.txt” ransom note.
• Potential Spread: The malware may infect additional devices on the same network.

Damage Potential

• Loss of access to critical files.
• Risk of further malware installation, including password-stealing Trojans.

Detection and Identification

DarkN1ght can be detected by various antivirus software. Detection names include:

• Avast: Win32:RansomX-gen [Ransom]
• Combo Cleaner: Gen:Heur.Ransom.Imps.3
• ESET-NOD32: A Variant Of MSIL/Filecoder.Chaos.C
• Kaspersky: HEUR:Trojan-Ransom.Win32.Generic
• Microsoft: Ransom:MSIL/FileCoder.YG!MTB

Removal Guide

To effectively remove DarkN1ght ransomware and prevent further damage, follow these steps:

Step 1: Disconnect from the Internet

Immediately disconnect the infected device from the internet to prevent further spread and stop communication with the ransomware’s command and control servers.

Step 2: Boot into Safe Mode

1. Restart your computer.
2. During startup, press the F8 key (or the appropriate key for your system) to enter Advanced Boot Options.
3. Select “Safe Mode with Networking.”

Step 3: Use SpyHunter for Removal

SpyHunter is a powerful anti-malware tool capable of detecting and removing ransomware like DarkN1ght.

1. Download SpyHunter.
2. Transfer the installer to the infected computer using a USB drive.
3. Install SpyHunter and run a full system scan.
4. Follow the on-screen instructions to remove DarkN1ght ransomware and any associated malware.

Step 4: Restore Files

If backups are available, use them to restore your files after removing the ransomware. If no backups exist, consider using third-party data recovery tools to attempt file recovery.

Preventing Future Infections

To protect your system from ransomware like DarkN1ght, adopt the following preventive measures:

1. Regular Backups: Maintain offline backups of critical files.
2. Email Vigilance: Avoid opening attachments or clicking links from unknown sources.
3. Update Software: Regularly update your operating system and installed software to patch vulnerabilities.
4. Use Reliable Security Tools: Install and keep updated anti-malware software like SpyHunter.
5. Avoid Pirated Software: Download software only from legitimate sources.
6. Network Security: Use firewalls and limit device access to reduce the risk of malware spread.

Final Thoughts

DarkN1ght ransomware is a serious threat that can lead to significant data loss and financial damage. Prompt removal using tools like SpyHunter and adopting robust cybersecurity practices are crucial to mitigating its effects and preventing future infections. Always prioritize data backups and be cautious when browsing online or opening email attachments.