Lazarus Group is a widely tracked North Korea-linked threat cluster associated with cyber intrusion activity. Security teams use the name as an attribution label for a set of operators, tools, and tactics that may shift over time rather than a single fixed organization. In practice, the cluster has been associated with espionage, theft, destructive attacks, and operations that support financial gain or strategic objectives.
It matters because Lazarus-linked campaigns often combine custom malware, phishing, credential theft, and infrastructure reuse, which can make detection and attribution harder. Defenders look for overlapping indicators such as code similarities, command-and-control patterns, domain registration habits, and post-exploitation behavior. When these techniques or tools appear in ransomware or other criminal activity, analysts treat them as a sign that tactics are being shared, adapted, or repurposed across threat actors.