Malicious copy-and-paste execution is a user-execution technique in which an attacker convinces a victim to paste a command into a shell, terminal, Run dialog, or similar interface. The command often looks like a fix, verification step, or update, but it is designed to download malware, run a script, or change system settings.
This matters because it bypasses many traditional exploit defenses: the attacker does not need to break software if the user willingly runs the payload. In real attacks, it is common in social-engineering lures such as fake CAPTCHA checks, fake support instructions, or “copy this command” prompts on compromised websites. Defenders look for unusual clipboard-to-terminal activity, suspicious command-line telemetry, script execution from temporary locations, and web pages that instruct users to paste commands they do not understand. User awareness and command-line monitoring are key controls against this pattern.