PrintNightmare - Spooler Child Process or DLL Drop in Spool Drivers

Ankit Mehta@Secvyn

•updated Jun 30, 2026•3•0•2

Detects potential PrintNightmare or Print Spooler exploitation by monitoring for the spoolsv.exe service spawning suspicious child processes (e.g., cmd, powershell, rundll32) and unauthorized files being dropped into the printer driver directory.