In Chapter 3, Network Evidence Collection, there was also discussion of the use of Security Information and Event Management (SIEM) platforms. These platforms not only serve as an aggregation point for log files from network devices, they also allow analysts to perform queries on the logs that have been aggregated. For example, there were IP addresses associated with potential malicious activity discovered during the analysis of the packet capture file. This file was limited to a single host on the internal network. One question that analysts would like to answer is how many other hosts could possibly be infected? If the SIEM aggregates connection log files from devices such as the exterior facing firewall and web proxy, the analyst ...

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