PHP 8.5.7 StreamBucket SOAP RCE - PHP Process Spawning Shell Child

Ibrahim Saud@tektrix

•updated Jun 29, 2026•1•0•1

This rule detects potential remote code execution (RCE) exploitation targeting PHP 8.5.7 via the StreamBucket SOAP deserialization vulnerability. It monitors for PHP-related parent processes spawning suspicious child processes (e.g., shells, network utilities, or specific exploit strings) that indicate unauthorized system command execution.