Malicious Payload
Noun · Security & Infosec
Definitions
The harmful code or content delivered by an exploit, document, script, or malware stage to perform the attacker's intended action. A malicious payload may install persistence, steal data, open a backdoor, encrypt files, or carry out another mission after delivery succeeds.
In plain English: The harmful code or content that actually performs the attack after delivery.
Example: "The initial downloader was small, but the malicious payload it fetched handled credential theft and persistence."