Genesis (MedusaLocker) Ransomware: Actions, Consequences, and Protection

In the ever-evolving landscape of cybersecurity, the Genesis (MedusaLocker) ransomware has emerged as a potent threat, belonging to the notorious MedusaLocker ransomware family. This malicious program encrypts files on the victim’s system and demands payment for their decryption, targeting companies rather than individual users. In this article, we delve into the actions, consequences, and protective measures against Genesis ransomware.

Genesis (MedusaLocker): Actions and Consequences

Genesis (MedusaLocker) ransomware encrypts files on the victim’s machine, appending their filenames with a “.genesis15” extension. For instance, a file named “1.jpg” becomes “1.jpg.genesis15” after encryption. The ransomware drops a ransom note named “HOW_TO_BACK_FILES.html,” stating that the victim’s company network has been compromised, and sensitive data was exfiltrated during the encryption process.

The victim is warned against renaming or modifying affected files, as well as using third-party recovery software, as it poses a risk of permanent data loss. Decryption is only possible by paying a ransom, with the note indicating that delaying contact with the attackers for more than 72 hours will result in an increased ransom amount.

It’s crucial to note that paying the ransom does not guarantee data recovery, and victims might still face the risk of permanent data loss or further exploitation of their stolen data.

Detection Names and Similar Threats

Genesis (MedusaLocker) is identified by various antivirus solutions under different names, including Avast (Win32:RansomX-gen [Ransom]), Combo Cleaner (Generic.Ransom.MedusaLocker.77EDA7FD), ESET-NOD32 (A Variant Of Win32/Filecoder.MedusaLock), and Kaspersky (HEUR:Trojan-Ransom.Win32.Generic). Similar threats within the ransomware landscape include DoNex, Reload, Zarik Locker, and Payuranson.

Removal Guide

To eliminate Genesis (MedusaLocker) ransomware from your system, follow this comprehensive removal guide:

1. Isolate the Infected System: Disconnect the infected system from the network to prevent further spread.
2. Identify the Malicious Processes: Use the Task Manager to identify and terminate any suspicious processes associated with the ransomware.
3. Remove Malicious Files: Locate and delete the ransomware-related files, including the malicious executable.
4. Restore Files from Backup: If available, restore your files from a backup created before the ransomware infection.

Preventing Future Infections

To safeguard against ransomware and similar threats, adopt the following best practices:

1. Exercise Caution with Emails: Be wary of email attachments and links, especially from unknown or suspicious sources.
2. Download from Official Sources: Only download software and files from official and verified channels to avoid malicious content.
3. Activate and Update Software Legitimately: Activate and update software using legitimate functions/tools to mitigate the risk of malware infections.
4. Regularly Back Up Data: Maintain regular backups of your data in multiple separate locations, such as remote servers or unplugged storage devices.

Conclusion

Genesis (MedusaLocker) ransomware poses a severe threat to companies, encrypting files and demanding ransom for decryption. By understanding its actions, consequences, and adopting proactive measures, users can enhance their cybersecurity posture, minimizing the risk of falling victim to such malicious attacks. Vigilance, regular backups, and adherence to best practices are crucial in the ongoing battle against ransomware and cyber threats.