Geometrical Ransomware: Threat Analysis and Removal Guide

Ransomware remains one of the most pervasive and damaging types of malware. Geometrical Ransomware is a recent addition to this menacing category, known for its sophisticated encryption techniques and devastating impact on both individuals and organizations. This article delves into the nature of Geometrical Ransomware, its modus operandi, detection methods, and provides a comprehensive guide for its removal and prevention.

What is Geometrical Ransomware?

Geometrical Ransomware operates like typical ransomware, infiltrating systems through various vectors such as phishing emails, malicious attachments, or compromised websites. Once inside a system, it swiftly encrypts files using strong encryption algorithms, rendering them inaccessible to users. The attackers then demand a ransom payment, usually in cryptocurrencies like Bitcoin, in exchange for decrypting the files.

Actions and Consequences

The consequences of a Geometrical Ransomware attack can be severe. Victims often find themselves unable to access critical data necessary for daily operations or personal use. This can lead to significant downtime for businesses, financial losses, and in some cases, irreparable damage to reputation and customer trust.

The text of the threat in its original Korean language is:

‘geometrical ransomeware. v1
기하학적 랜섬웨어. v1
made by j.d.h.
opps! 당신의 모든 파일들은 암호화 되었습니다.
군사 수준의 알고리즘을 풀어 당신의 파일들을 복구하는 방법은 복구키를 구입하는 방법뿐입니다.
300$를 보내야 합니다.
당신의 해독 키는 1736-29467-28ke-dj72 이며 이를 입력하여 확인 후 복호화 키를 구입 가능합니다.
바이러스 파일을 삭제시키거나 백신을 키지 마십시오.
안티 바이러스가 업데이트되고 바이러스가 자동으로 삭제되면 돈을 지불했더라도 복구가 불가능 합니다. 하루가 지날 수록 지불해야 하는 금액은 배가 되며, 매일 100개의 파일들이 삭제됩니다.
문의:geometrical@geometrical.ransome.kr
왜 그렇게 심각하지?
좀 웃어봐
make smile.’

Detection Names and Similar Threats

Geometrical Ransomware may be detected under various names by cybersecurity firms and antivirus software. Common detection names include:

• Trojan-Ransom.Win32.Geometrical
• Ransom:Win32/Geometrical.A
• Win32/Filecoder.Geometrical

Similar threats include other ransomware variants like WannaCry, Ryuk, and Maze, each known for their distinct methods and targets.

Removal Guide

Removing Geometrical Ransomware requires careful steps to ensure complete eradication from the infected system. Here’s a detailed guide:

1. Disconnect from Network: Immediately disconnect the infected device from any network to prevent further spread or communication with the attackers.
2. Enter Safe Mode: Restart the computer and enter Safe Mode. This helps in minimizing the malware’s ability to operate.
3. Identify Malicious Processes: Use Task Manager (Ctrl+Shift+Esc) to identify any suspicious processes related to Geometrical Ransomware.
4. Delete Temporary Files: Clear temporary files that may contain remnants of the malware using the Disk Cleanup tool.
5. Remove Registry Entries: Be cautious while editing the registry. Delete any suspicious registry entries related to the ransomware.
6. Scan and Remove Malware: Use a reputable antivirus or antimalware tool to scan the system thoroughly. Follow the tool’s instructions to quarantine or delete detected threats.
7. Restore from Backup: If possible, restore affected files from a secure backup that was created before the ransomware attack occurred.

Best Practices for Prevention

Preventing ransomware infections requires a proactive approach and adherence to best practices:

• Regular Backups: Maintain regular backups of important data and store them offline or in a secure cloud environment.
• Update Software: Keep operating systems, software, and antivirus programs up to date with the latest security patches.
• Educate Users: Train employees or family members about phishing tactics and safe browsing habits to avoid clicking on suspicious links or downloading unknown attachments.
• Use Firewall and Security Software: Enable firewalls and use reputable security software to detect and block potential threats before they can cause harm.

By following these guidelines, individuals and organizations can significantly reduce the risk of falling victim to Geometrical Ransomware or similar malicious attacks.

Conclusion

Geometrical Ransomware poses a serious threat to digital security, capable of causing widespread damage and financial loss. Vigilance, regular backups, and a robust cybersecurity strategy are essential defenses against such evolving threats in today’s interconnected world.