A malware network is the connected set of systems that helps malicious software function at scale. It can include command-and-control servers, redirectors, hosting platforms, update sites, data-exfiltration endpoints, and other infrastructure used to deliver payloads, issue instructions, or collect stolen data. The network may be distributed across many domains and machines so that one takedown does not stop the whole operation.
This matters because malware is often more than a single file on one infected host; it is a service ecosystem that supports persistence, automation, and evasion. Attackers use malware networks to push ransomware, steal credentials, or move commands between operators and infected devices. Defenders look for signs such as suspicious DNS activity, unusual outbound connections, repeated beaconing, and shared infrastructure across campaigns. Disrupting the network can break delivery paths, cut off control channels, and force criminals to rebuild.