BruCON 0x0A

You are an incident responder working for a nuclear waste management system. An incident has taken place in the industrial environment where a number of valves for the main waste storage tank are sporadically opening and closing. The valves are controlled by a PLC and the local security operations centre (SOC), suspect that it may be due to an attack against the PLC. You are provided a network pcap file and a dump of the data-blocks from the PLC for analysis. You are expected to analyse the data to attempt to determine what occurred and how the behaviour of the valve has been modified.