KernelCallbackTable Hijack Shellcode Delivered

Darshan Thummar@Mighty

•updated Jun 11, 2026•0•0•2

This rule detects the delivery of shellcode designed to hijack the KernelCallbackTable. It specifically looks for HTTP traffic (flow:to_client,established) containing the strings "KernelCallbackTable" and "NtUserSetWindowsHookEx" (case-insensitive) within the file data. This technique is often used for privilege escalation or persistence by redirecting kernel callbacks to malicious code.