Process masquerading is a stealth technique in which malware names itself or its visible process fields to resemble a legitimate system process. The goal is to blend into normal administration noise, delay suspicion, and make analysts look past a malicious binary because it “looks right” at a glance.
This matters because defenders often start triage with process lists, where familiar names can create false confidence. Attackers may imitate kernel workers, update services, or security tools, then pair the disguise with hidden command-line arguments, unusual parent-child relationships, or suspicious network activity. In real incidents, this technique helps backdoors and RATs stay resident long enough to support post-compromise access, C2 traffic, and lateral movement. Defenders counter it by validating names against the actual executable path, checking /proc metadata, reviewing command lines, and correlating host telemetry with network logs. A convincing name is not proof of legitimacy.