CrowdStrike CCFH-202b Practice Exam Questions & Answers

The Linux Sensor report is where an analyst would find information about shells spawned by root, Kernel Module loads, and wget/curl usage. The Linux Sensor report is a pre-defined report that provides a summary view of selected activities on Linux hosts. It shows information such as process execution events, network connection events, file write events, etc. that occurred on Linux hosts within a specified time range. The Sensor Health report, the Sensor Policy Daily report, and the Mac Sensor report do not provide the same information.

The Process Timeline Link is what you click to jump to a Process Timeline from many pages in Falcon, such as a Hash Search. The Process Timeline Link is an icon that looks like three horizontal bars with dots on them. It appears next to each process name or ID on various pages in Falcon, such as Hash Search results, Detection details, Event Search results, etc. Clicking on it will open a new tab with the Process Timeline for that process. The PID, the Process ID or Parent Process ID, and the CID are not what you click to jump to a Process Timeline.

The Events Data Dictionary found in the Falcon documentation is useful for writing hunting queries because it provides a reference of information about the events found in the Investigate > Event Search page of the Falcon Console. The Events Data Dictionary describes each event type, field name, data type, description, and example value that can be used to query and analyze event data. The Streaming API Event Dictionary, Hunting and Investigation, and Event stream APIs are not documentation that provide details about key data fields and sensor events.

The ContextProcessld_readable field in a DNS Request event points to the responsible process. The ContextProcessld_readable field is the readable representation of the process identifier for the process that initiated the DNS request. It can be used to identify which process was communicating with a specific domain or IP address. The TargetProcessld_decimal, ContextProcessld_decimal, and ParentProcessId_decimal fields do not point to the responsible process.

A hunting hypothesis is a statement that describes a possible malicious activity that can be tested with data and analysis. A good hunting hypothesis should be specific, testable, and relevant to the problem or goal. In this case, the best hunting hypothesis from the following is that a password guessing attack is being executed against remote access mechanisms such as VPN, as it explains the possible cause and method of the user account lockouts in a specific and testable way. A zero-day vulnerability on a Microsoft Exchange server is too vague and does not explain how it relates to the lockouts. A hacked web application is also too vague and does not specify how it causes the lockouts. Users locking their accounts out because they recently changed their passwords is not a malicious activity and does not account for the increase in calls.

Event Search data is recorded with UTC (Coordinated Universal Time) time zone. UTC is a standard time zone that is used as a reference point for other time zones. PST (Pacific Standard Time), GMT (Greenwich Mean Time), and EST (Eastern Standard Time) are not the time zones that Event Search data is recorded with.

This Event Search query would only find the DNS lookups to the domain www randomdomain com, as it specifies the exact event type and domain name to match. The other queries would either find other events or domains that are not relevant to the question.