PHP 8.5.7 StreamBucket SOAP RCE — Unexpected Child Process from php/php-fpm

Ibrahim Saud@tektrix

•updated Jun 30, 2026•1•0•4

Detects web server processes (e.g., PHP, IIS, Apache, Nginx) spawning suspicious child processes including shells (cmd.exe, powershell, bash) or network utilities (curl, wget, netcat), which is often indicative of webshell exploitation or post-compromise activity.