The Behavior pane is fundamental in exploring and understanding which methods of attack (tools) are known to be in use. Using the MITRE ATT&CK framework, behaviors associated with these methods demonstrate how breach patterns can occur.
Behavior details - This pane provides more visibility on observed behaviors and links to related threats that a countermeasure addresses.
Sighting Details - This pane contains additional details on observed behaviors grouped by event. Details found here might also indicate an IOC that you should monitor.