Plague: The PAM-Based Linux Backdoor

Plague is a newly discovered, highly sophisticated Linux backdoor making headlines across the cybersecurity community. Unlike conventional malware, Plague embeds itself into PAM (Pluggable Authentication Modules)—the core authentication framework for Linux—granting attackers stealthy, persistent access that bypasses standard login mechanisms. Researchers warn that Plague has been quietly evolving since mid-2024 and remained undetected for more than