Explanation
According to the CrowdStrike Falcon Devices Add-on for Splunk Installation and Configuration Guide v3.1.5+, the Executive Summary dashboard provides an overview of your sensor health and activity1. It includes various items, such as Active Sensors, Inactive Sensors, Detections by Severity, etc1. The item that indicates sensors running with unsupported versions is Sensors in RFM (Reduced Functionality Mode)1. RFM is a state where a sensor has limited functionality due to various reasons, such as license expiration, network issues, tampering attempts, or unsupported versions1. You can see the number and percentage of sensors in RFM and the reasons why they are in RFM1.

Explanation
According to the CrowdStrike Falcon Data Replicator (FDR) Add-on for Splunk Guide, the Always Block action allows you to block a file from executing on any host in your organization based on its hash value2. This action can be used to prevent known malicious files from running on your endpoints2.

Explanation
According to the CrowdStrike Falcon Data Replicator (FDR) Add-on for Splunk Guide, IOA exclusions allow you to exclude files or directories from being detected or blocked by CrowdStrike's indicators of attack (IOAs), which are behavioral rules that identify malicious activities2. This can reduce false positives and improve performance2. IOA exclusions only apply to IOA based detections, not other types of detections such as machine learning, custom IOA, or OverWatch2.

Explanation
According to the [MITRE ATT&CK website], MITRE ATT&CK is a knowledge base of adversary behaviors and techniques based on real-world observations. The knowledge base is organized into tactics and techniques, where tactics are the high-level goals of an adversary, such as initial access, persistence, lateral movement, etc., and techniques are the specific ways an adversary can achieve those goals, such as phishing, credential dumping, remote file copy, etc. Defense Evasion is one of the tactics defined by MITRE ATT&CK, which covers actions that adversaries take to avoid detection or prevent security controls from blocking their activities. Eternal Blue, Emotet, and Phishing are examples of techniques, not tactics.

Explanation
According to the CrowdStrike Falcon Data Replicator (FDR) Add-on for Splunk Guide, the Detections page allows you to view and manage detections generated by the CrowdStrike Falcon platform2. You can use various filters to narrow down the detections based on criteria such asstatus, severity, tactic, technique, etc2. To view 'in-progress' detections assigned to Falcon Analyst Alex, you can filter on 'Status: In-Progress' and 'Assigned-to: Alex*'2. The asterisk (*) is a wildcard that matches any characters after Alex2.