A method and a system of protecting a target computer server system from packet data communication exploits are described. Such a method may include: identifying as being anomalous a first data processing request, and in response: (1) directing the first data processing request to a first diagnostic instrumented module that provides virtualization of a target server or request handling interface and determines an anomaly severity of the first data processing request, and (2) transmitting to the sender of the first data processing request a packet data protocol redirect request for accessing the target computer server system or slow walks a response to the sender. A packet data communication exploit suspect may be determined based on processing of the first data processing request by the first diagnostic instrumented module. The first diagnostic instrumented module may be a virtual server or container virtualizing the server.