BlackLock Ransomware: A Analysis and Removal Guide

BlackLock is a ransomware-type virus that encrypts files and demands ransoms for decryption. It renames encrypted files with a random character string and appends them with a likewise randomized extension. The attackers claim financial motivation and threaten to leak stolen data if the ransom is not paid. Victims are urged to communicate via a Tor website to negotiate a ransom, typically demanded in Bitcoin.

BlackLock Ransomware Summary

Feature	Details
Threat Type	Ransomware, Crypto Virus, File Locker
Encrypted File Extension	Random character string (e.g., bvir5rvqex4ak8d9.63npoxa6)
Ransom Note File Name	HOW_RETURN_YOUR_DATA.TXT
Associated Email Addresses	Not specified, communication via a Tor website
Detection Names	Avast (Win64:MalwareX-gen [Trj]), Combo Cleaner (Trojan.Generic.36893921), DrWeb (Trojan.Encoder.41186), Kaspersky (HEUR:Trojan-Ransom.Win64.Generic), Microsoft (Trojan:Win32/Filecoder!MSR)
Symptoms of Infection	Files cannot be opened, filenames changed, ransom note displayed, demand for payment in Bitcoin
Damage	Encrypts all files, potential data theft, installation of additional malware
Distribution Methods	Malicious email attachments, torrent sites, malicious ads, network propagation
Danger Level	Critical

Ransom Note Text

Hello!

Your files have been stolen from your network and encrypted with a strong algorithm. We work for money and are not associated with politics. All you need to do is contact us and pay.

--- Our communication process:

1. You contact us.
2. We send you a list of files that were stolen.
3. We decrypt 1 file to confirm that our decryptor works.
4. We agree on the amount, which must be paid using BTC.
5. We delete your files, we give you a decryptor.
6. We give you a detailed report on how we compromised your company, and recommendations on how to avoid such situations in the future.

--- Client area (use this site to contact us):

Link for Tor Browser: -
>>> to begin the recovery process.

* In order to access the site, you will need Tor Browser,
you can download it from this link: hxxps://www.torproject.org/

--- Recommendations:

DO NOT RESET OR SHUTDOWN - files may be damaged.
DO NOT RENAME OR MOVE the encrypted and readme files.
DO NOT DELETE readme files.

--- Important:

If you refuse to pay or do not get in touch with us, we start publishing your files.

The decryptor will be destroyed and the files will be published on our blog.

Blog: -

Sincerely!

How to Remove BlackLock Ransomware?

Step 1: Enter Safe Mode with Networking

1. Restart your computer and press F8 (or Shift + F8) before Windows loads.
2. Select Safe Mode with Networking from the list.

Step 2: Download and Install SpyHunter

1. Open a browser in Safe Mode.
2. Visit the official SpyHunter website and download the tool.
3. Install SpyHunter and launch a full system scan.

Step 3: Remove BlackLock Ransomware Files

1. Let SpyHunter detect all malicious files.
2. Click on Fix Threats to remove BlackLock ransomware and associated malware.

Step 4: Restore Encrypted Files (If Backup is Available)

1. Connect your external backup storage (if applicable).
2. Use Windows’ File History or other backup tools to restore affected files.

Step 5: Reset System to Remove Any Traces

1. Perform a system restore to a previous point (if possible).
2. Use an anti-malware scan to verify that your system is clean.

How to Prevent Ransomware Infections

Backup Your Data Regularly

• Store backups in multiple separate locations (cloud storage, external drives, network storage).
• Keep backups disconnected from your primary system when not in use.

Keep Software and OS Updated

• Install security updates for Windows and installed applications.
• Enable automatic updates for critical software.

Avoid Suspicious Emails and Links

• Do not open email attachments from unknown senders.
• Verify email legitimacy before clicking links.
• Disable macro scripts in Microsoft Office.

Use Reputable Security Software

• Install SpyHunter or similar anti-malware tools.
• Enable real-time protection.

Restrict Admin Privileges

• Do not run daily tasks with an Administrator account.
• Use User Account Control (UAC) to prevent unauthorized software execution.

Be Cautious with Downloads

• Avoid downloading software from unverified sources.
• Use official vendor websites and reputable download platforms.

Monitor Network Traffic and Use a Firewall

• Enable Windows Defender Firewall or a third-party firewall.
• Monitor unusual network activity that could indicate a ransomware attack.

Conclusion

BlackLock ransomware is a severe threat that encrypts files and demands ransom for decryption. Paying the ransom does not guarantee file recovery, making removal and prevention crucial. Using SpyHunter to eliminate the malware and maintaining robust cybersecurity practices can help users prevent future infections. Stay vigilant and protect your data with strong security measures.