Ace Your CCFA-200 CrowdStrike Falcon Certification Program Exam

When editing an existing IOA exclusion, the IOA name cannot be edited. An IOA (indicator of attack) exclusion allows you to define custom rules for excluding suspicious behavior from detection or prevention based on process execution, file write, network connection, or registry events. The IOA name is a predefined name that identifies the type of IOA behavior that you want to exclude, such as “Suspicious Process Execution - Script Interpreter Executing File”. The IOA name cannot be changed when editing an existing IOA exclusion, as it is linked to a specific IOA rule in the Falcon platform. However, you can edit other parts of the IOA exclusion, such as the exclusion name, the hosts groups, and the filter criteria2.

References: 2: Cybersecurity Resources | CrowdStrike

Turn on the Script-Based Execution Monitoring prevention policy setting to enable the "Falcon sensor to monitor the contents of scripts and shells that are popular mechanisms for executing malicious code on hosts. This setting does not kill or block scripts."

Scripting languages:

Excel 4.0 macros

JScript

VBA Macros

VBScript

The Sensor Visibility setting that should be turned on within the Prevention policy settings to monitor suspicious VBA macros is Script-based Execution Monitoring. Script-based Execution Monitoring is a feature that enables the Falcon sensor to monitor and prevent malicious script execution on Windows systems. The feature uses machine learning and behavioral analysis to detect suspicious scripts or commands executed by various script interpreters, such as PowerShell, WScript, CScript, or Bash. VBA (Visual Basic for Applications) is a scripting language that can be embedded in Microsoft Office documents, such as Word or Excel. VBA macros can be used to automate tasks or perform actions within the documents, but they can also be abused by attackers to deliver malware or execute malicious code. Script-based Execution Monitoring can help detect and prevent such attacks by monitoring the contents of VBA macros for execution of malicious content.

References: : [Falcon Administrator Learning Path | Infographic | CrowdStrike]

The place in the console where you can find a list of all hosts in your environment that are in Reduced Functionality Mode (RFM) is Host Management > Filter for RFM. The Host Management page allows you to view and manage all hosts in your environment that have Falcon sensors installed. You can use the filter bar to filter hosts by various attributes, such as status, platform, type, or group. You can also filter hosts by health events, such as RFM, which is a mode that limits the sensor’s functionality due to license expiration, network connectivity loss, or certificate validation failure. By filtering for RFM, you can see a list of all hosts that are in this mode1.

References: 1: Falcon Administrator Learning Path | Infographic | CrowdStrike

The filter that could be used to quickly identify all devices categorized as a “Workstation” by the Falcon Platform on the Host Management page is Type. The Type filter allows you to filter hosts by their device type, such as workstation, server, or domain controller. The device type is assigned to each host based on their Active Directory domain structure. You can use the Type filter to quickly identify all hosts that have the workstation type assigned in their domain2.

References: 2: Cybersecurity Resources | CrowdStrike