CCFR-201 Sample Questions Answers

According to the CrowdStrike Falcon Devices Add-on for Splunk Installation and Configuration Guide v3.1.5+, the Process Timeline search requires two parameters: aid (agent ID) and TargetProcessId_decimal (the decimal value of the process ID). These fields can be obtained from the ProcessRollup2 event, which contains information about processes that have executed on a host1.

According to the CrowdStrike Falcon Devices Add-on for Splunk Installation and Configuration Guide v3.1.5+, the Bulk Domain Search tool allows you to search for one or more domains and view a summary of information from Falcon events that contain those domains1. The summary includes the domain name, IP address, country, city, ISP, ASN, geolocation, hostname, sensor ID, OS, process name, command line, and organizational unit of the host that communicated with those domains1. This means that the tool contains domain information along with IP lookup information1.

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.

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. The knowledge base also covers different platforms that adversaries target, such as Windows, Linux, Mac, Android, iOS, etc., and different phases of an adversary’s lifecycle, such as reconnaissance, resource development, execution, command and control, etc.

According to the CrowdStrike Falcon Devices Add-on for Splunk Installation and Configuration Guide v3.1.5+, there are three ways to export process event data from a detection in .CSV format1:

• You can use the Process Timeline tool and click on “Export CSV” button at the top right corner1.
• You can use the Event Search tool and select one or more events and click on “Export CSV” button at the top right corner1.
• You can use the Full Detection Details tool and choose the “View Process Activity” option from any process node in the process tree view1. This will show you all events generated bythat process in a rows-and-columns style view1. You can then click on “Export CSV” button at the top right corner1.

According to the CrowdStrike Falcon Devices Add-on for Splunk Installation and Configuration Guide v3.1.5+, the Host Search allows you to search for hosts based on various criteria, such as hostname, IP address, OS, etc1. The results are displayed in an organized view by type, such as detections, incidents, processes, network connections, etc1. The Host Timeline allows you to view all events recorded by the sensor for a given host in a chronological order1. The events include process executions, file writes, registry modifications, network connections, user logins, etc1.

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.

According to the CrowdStrike Falcon® Data Replicator (FDR) Add-on for Splunk Guide, Sensor Visibility Exclusions allow you to exclude certain files or directories from being monitored by the CrowdStrike sensor, which can reduce noise and improve performance2. This means that no events will be collected or sent to the CrowdStrike Cloud for those files or directories2.

According to the CrowdStrike Falcon Devices Add-on for Splunk Installation and Configuration Guide v3.1.5+, the Host Timeline tool allows you to view all events recorded by the sensor for a given host in a chronological order1. The events include process executions, file writes, registry modifications, network connections, user logins, etc1. You can use various filters to narrow down the events based on criteria such as event type, timestamp range, file name, registry key, network destination, etc1. However, there is no filter for severity, user name, or detection ID, as these are not attributes of the events1.

According to the [CrowdStrike Falcon® Data Replicator (FDR) Add-on for Splunk Guide], when you quarantine a file from a host using IOC Management or Real Time Response (RTR), you are moving it from its original location to a secure location on the host where it cannot be executed. The file is also encrypted and renamed with a random string of characters. A copy of the file is also uploaded to the CrowdStrike Cloud for further analysis. Quarantined files are stored in the CrowdStrike Cloud for 90 days before they are deleted.

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.

According to the CrowdStrike Falcon® Data Replicator (FDR) Add-on for Splunk Guide, when you quarantine a file from a host using IOC Management or Real Time Response (RTR), you are moving it from its original location to a secure location on the host where it cannot be executed2. The file is also encrypted and renamed with a random string of characters2. On Windows hosts, quarantined files are stored in C:\Windows\System32\Drivers\CrowdStrike\Quarantine folder2.

According to the CrowdStrike Falcon Devices Add-on for Splunk Installation and Configuration Guide v3.1.5+, the Full Detection Details option allows you to view detailed information about a detection, such as detection ID, severity, tactic, technique, description, etc1. You can also view the events generated by the processes involved in the detection in different ways, such as process tree, process timeline, or process activity1. The process tree view provides a visualization of program ancestry, which shows the parent-child and sibling relationships among the processes1. You can also see the event types and timestamps for each process1.

According to the CrowdStrike Falcon Devices Add-on for Splunk Installation and Configuration Guide v3.1.5+, the IP Search tool allows you to search for an IP address and view a summary of information from Falcon events that contain that IP address1. The summary includes the hostname, sensor ID, OS, country, city, ISP, ASN, geolocation, process name, command line, and organizational unit of the host that communicated with that IP address1. This is an advantage of using the IP Search tool because it provides host, process, and organizational unit data without the need to write a query1.

According to the CrowdStrike Falcon Devices Add-on for Splunk Installation and Configuration Guide v3.1.5+, the IP Search tool allows you to search for an IP address and view a summary of information from Falcon events that contain that IP address1. The summary includes the hostname, sensor ID, OS, country, city, ISP, ASN, and geolocation of the host that communicated with that IP address1.