CrowdStrike CCFH-202b Exam Questions

This query will return the parent processes responsible for launching badprogram.exe by using a subsearch to find the processrollup2 events where FileName is badprogram.exe, then renaming the TargetProcessld_decimal field to ParentProcessld_decimal and using it as a filter for the main search, then using stats to count the occurrences of each FileName by _time. The other queries will either not return the parent processes or use incorrect field names or syntax.

Lateral movement through a victim environment is an example of the Command & Control stage of the Cyber Kill Chain. The Cyber Kill Chain is a model that describes the phases of a cyber attack, from reconnaissance to actions on objectives. The Command & Control stage is where the adversary establishes and maintains communication with the compromised systems and moves laterally to expand their access and control.

Scheduled Searches are a way to create event searches that run automatically and recur on a schedule that you set. You can use Scheduled Searches to monitor your environment for specific conditions or patterns, generate reports or alerts, or enrich your data with additional fields or tags. Workflows, Event Search, and Scheduled Reports are not ways to create event searches that run automatically and recur on a schedule.

In the Powershell Hunt report, the score signifies a cumulative score of the various potential command line switches that were used in the PowerShell script execution. The score is based on a weighted system that assigns different values to different switches based on their potential maliciousness or usefulness for threat hunting. For example, -EncodedCommand has a higher value than -NoProfile. The score does not signify the number of hosts that ran the PowerShell script, how recently the PowerShell script executed, or the maliciousness score determined by NGAV.

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.