LockBit 3.0 (LockBit Black) Ransomware

What is LOCKBIT-3-RANSOMWARE?

LockBit 3.0 (LockBit Black) Ransomware ranks as a critical-severity malware/security issue in our database. LockBit 3.0 (also known as LockBit Black) is a highly aggressive ransomware-as-a-service (RaaS) variant. It employs advanced anti-analysis techniques, disables security tools, and encrypts files using a multi-threaded engine while stealing sensitive data for extortion. The usual suspects are exploiting vulnerabilities in VPNs and edge firewalls, phishing campaigns containing malicious script attachments and compromised administrative credentials. Use the steps below to track down and fix the cause.

Common Causes

• Exploiting vulnerabilities in VPNs and edge firewalls
• Phishing campaigns containing malicious script attachments
• Compromised administrative credentials

Step-by-Step Fix Guide

• 1
  Patch all public-facing edge equipment and VPNs immediately

  "Patch all public-facing edge equipment and VPNs immediately" targets exploiting vulnerabilities in VPNs and edge firewalls, one of the documented causes of LOCKBIT-3-RANSOMWARE.

• 2
  Implement strong application whitelisting and block execution from Temp directories

  "Implement strong application whitelisting and block execution from Temp directories" handles an edge case some users report with LOCKBIT-3-RANSOMWARE.

• 3
  Deploy tamper-protected endpoint security

  "Deploy tamper-protected endpoint security" covers a less common but documented cause of LOCKBIT-3-RANSOMWARE.

• 4
  Restore systems from offline backups

  Try "Restore systems from offline backups" next if the issue persists — it addresses a secondary cause.

Commands & Diagnostics

Frequently Asked Questions