EWM Injection via SetWindowLong API Payload

Darshan Thummar@Mighty

•updated Jun 11, 2026•0•0•1

This rule detects potential EWM (Event-Window-Message) injection attempts via the SetWindowLong API by looking for the presence of both "SetWindowLongPtr" and "GetWindowLongPtr" strings in HTTP client-bound file data. This technique is often used for privilege escalation or code injection.