Win32k WM_COPYDATA __fnCOPYDATA KernelCallbackTable Shellcode Delivery in HTTP Response

Ankit Mehta@Secvyn

•updated Jun 30, 2026•2•0•2

Detects HTTP response bodies containing common PE/Shellcode magic headers (MZ, PE, or NOP sleds) which are associated with the delivery of payloads designed to exploit or utilize the Windows KernelCallbackTable for process injection. The detection focuses on suspicious content delivered over HTTP connections.