CrowdStrike CCFA-200 - CrowdStrike Certified Falcon Administrator

According to documentation (documentation/detections/technique/sensor-based-ml-cst0007): CrowdStrike sensor-based machine learning (ML) identifies and analyzes unknown executables as they run on hosts. This technique is triggered by files and file attributes associated with known malware. This is similar to the [Cloud-based ML](/support/documentation/detections/technique/cloud-based-ml) technique. Cloud-based ML is informed by global analysis of executables that classifies and identifies malware. The key difference is that it doesn't run on hosts when they're offline.

The goal of a Network Containment Policy is to limit the impact of a compromised host on the network. This policy allows users to isolate a host from the network, while still allowing it to communicate with the Falcon Cloud and other essential services. This can help prevent further damage or data exfiltration from a compromised host. The other options are either incorrect or not related to the policy. Reference: [CrowdStrike Falcon User Guide], page 40.

The administrator can create a new Response Policy, toggle the “Real Time Response” switch off and assign the policy to the host group that contains the servers that are not allowed to be accessed remotely. This will disable RTR only on those hosts, while keeping it enabled for the rest of the hosts. Editing the Default Response Policy or adding exceptions will not achieve the desired result. Reference: CrowdStrike Falcon User Guide, page 35.

The sensor uses TCP port 443 (HTTPS) to communicate with the CrowdStrike Cloud. This port and protocol are used to securely send and receive data between the sensor and the cloud, such as detections, policies, updates, commands, etc. The other options are either incorrect or not used by the sensor. Reference: CrowdStrike Falcon User Guide, page 28.

The option that describes what exclusions can be applied to is that exclusions can be applied to either all hosts or specified groups. An exclusion is a rule that defines what files, folders, processes, IP addresses, or domains should be excluded from detection or prevention by the Falcon sensor. You can create and manage exclusions in the Exclusions page in the Falcon console. You can apply exclusions to either all hosts in your environment or to specific host groups that you select. You cannot apply exclusions to individual hosts selected by the administrator.

References: : [Cybersecurity Resources | CrowdStrike]

A valid step when troubleshooting sensor installation failure is to confirm all required services are running on the system. This can help identify if there are any issues with the sensor service, the Windows Management Instrumentation service, or the Windows Remote Management service, which are required for the sensor to function properly. The other options are either incorrect or not helpful for troubleshooting sensor installation failure. Reference: CrowdStrike Falcon User Guide, page 29.

When creating new IOCs in IOC management, the administrator must configure the Hash, Platform and Action fields. The Hash field is the value of the IOC, such as MD5, SHA1 or SHA256. The Platform field is the operating system that the IOC applies to, such as Windows, Linux or Mac. The Action field is the action that Falcon will take when detecting the IOC, such as Detect, Block or Allow. The other fields are either optional or not available. Reference: CrowdStrike Falcon User Guide, page 44

The administrator can modify settings to permit certain traffic during a containment period by creating or editing a Containment Policy. This policy allows users to specify which ports, protocols and IP addresses are allowed or blocked during network containment. The other options are either incorrect or not related to network containment. Reference: [CrowdStrike Falcon User Guide], page 40.

Glob syntax is used to specify exclusion patterns to easily exclude files and folders and extensions from detections. Glob syntax allows you to use wildcards (*) and ranges ([a-z]) to match multiple characters or values in a file path or name. For example, you can use glob syntax to exclude all files with .exe extension in a folder by using C:\Folder*.exe as an exclusion pattern2.

References: 2: Cybersecurity Resources | CrowdStrike