Backdoor
Backdoor — Hidden Mechanism for Bypassing Normal Authentication Controls
A Backdoor is a hidden access mechanism that allows attackers to bypass standard authentication and security controls. This SECMONS glossary entry explains how backdoors are installed, how they differ from web shells, and why they are critical in post-compromise persistence.
Persistence — Maintaining Long-Term Access After Initial Compromise
Persistence is the stage of an intrusion where attackers establish mechanisms to maintain access to a compromised system or environment over time. This SECMONS glossary entry explains how persistence works, common techniques used by threat actors, and how defenders can detect and remove persistent footholds.
Web Shell — Malicious Server-Side Backdoor for Remote Control
A Web Shell is a malicious script deployed on a web server that allows attackers to execute commands remotely. This SECMONS glossary entry explains how web shells are deployed, why they are difficult to detect, and how defenders can identify and remove them.