Linux Suspicious Child Process of PostgreSQL — Detection Rule
The following analytic detects PostgreSQL spawning a shell, interpreter, or network utility as a child process. When an attacker exploits a remote code execution vulnerability in PostgreSQL (such as via malicious COPY TO/FROM PROGRAM, CVE-2019-9193, or an insecurely configured extension), the database process itself becomes the parent of attacker-controlled commands. Legitimate PostgreSQL processes do not normally fork shells or download tools, making this a high-fidelity signal for post-exploitation activity.