Inside PamDOORa: Stealth Credential Theft Through Linux PAM Subversion

PamDOORa is a newly‑discovered Linux PAM backdoor designed for stealth SSH credential theft and persistent post‑exploitation. This video breaks down how the implant subverts the PAM authentication stack, captures plaintext passwords, triggers on network‑specific “magic passwords,” wipes forensic logs, and evades SOC detection by firing only on failed login attempts. We walk through the full attack chain, anti‑forensics, credential‑harvesting workflow, and the defensive controls needed to detect and contain PAM‑level compromises.