You have been called to investigate a sudden increase in network traffic at XYZ. It seems that the traffic generated was too heavy that normal business functions could no longer be rendered to…

You have been called to investigate a sudden increase in network traffic at XYZ. It seems that the traffic generated was too heavy that normal business functions could no longer be rendered to external employees and clients. After a quick investigation, you find that the computer has services running attached to TFN2k and Trinoo software. What do you think was the most likely cause behind this sudden increase in traffic?