[CrowdStrike] CCFH - Certified Falcon Hunter Exam Dumps & Study Guide

Free [CrowdStrike] CCFH - Certified Falcon Hunter Practice Questions Preview

• Question 1

  Which of the following is a suspicious process behavior?

  • A. PowerShell running an execution policy of RemoteSigned
  • B. An Internet browser (eg., Internet Explorer) performing multiple DNS requests
  • C. PowerShell launching a PowerShell script
  • D. Non-network processes (e.g., notepad.exe) making an outbound network connection

  Correct Answer: D

  Explanation:

  I agree with the community consensus of Option D. In security monitoring and CrowdStrike Falcon analysis, identifying processes performing actions outside of their expected baseline—such as a text editor initiating network traffic—is a primary indicator of compromise.

  Reason

  Option D is correct because notepad.exe is a local text editing utility that has no legitimate requirement to initiate outbound network connections. When a non-network process behaves this way, it typically indicates process hollowing or a malicious DLL injection where an attacker is using a trusted binary to bypass firewall rules or perform command and control (C2) communications.

  Why the other options are not as suitable

  • Option A is incorrect because RemoteSigned is a common and relatively restrictive PowerShell Execution Policy that allows local scripts to run while requiring downloaded scripts to be signed by a trusted publisher; it is not inherently suspicious.
  • Option B is incorrect because Internet browsers are expected to make frequent DNS requests as part of normal web navigation and resource loading.
  • Option C is incorrect because PowerShell launching a script is a standard administrative and functional behavior in Windows environments; while scripts can be malicious, the act itself is a native feature and less indicative of an anomaly than a text editor reaching out to the internet.

  Citations

  • https://www.crowdstrike.com/cybersecurity-101/observables-vs-indicators-of-compromise-ioc/
  • https://www.crowdstrike.com/blog/tech-center/detecting-lateral-movement/

• Question 2

  Which field should you reference in order to find the system time of a *FileWritten event?

  • A. ContextTimeStamp_decimal
  • B. FileTimeStamp_decimal
  • C. ProcessStartTime_decimal
  • D. timestamp

  Correct Answer: A

  Explanation:

  I agree with the community consensus for Option A. In CrowdStrike Falcon event data, ContextTimeStamp_decimal is the definitive field for representing the local system time at which the event actually occurred on the endpoint sensor.

  Reason

  Option A is correct because ContextTimeStamp_decimal represents the time an event occurred on the system, as seen by the Falcon sensor. For a NewExecutableWritten or any *FileWritten event, this field provides the accurate local timestamp of the activity, distinct from when the data was ingested by the cloud.

  Why the other options are not as suitable

  • Option B is incorrect because FileTimeStamp_decimal typically refers to the metadata timestamp of the file itself (such as creation or modification times stored in the file system) rather than the specific system time the *FileWritten event was generated by the sensor.
  • Option C is incorrect because ProcessStartTime_decimal tracks when the process responsible for the action began its execution, which does not necessarily correlate to the exact time of the file write event.
  • Option D is incorrect because timestamp in the Falcon platform usually refers to the ingest time—the time the event was received and processed by the CrowdStrike cloud—which can differ from the actual local system time due to network latency or caching.

  Citations

  • https://falcon.crowdstrike.com/documentation/26/events-data-dictionary

• Question 3

  What Search page would help a threat hunter differentiate testing, DevOPs, or general user activity from adversary behavior?

  • A. Hash Search
  • B. IP Search
  • C. Domain Search
  • D. User Search

  Correct Answer: D

  Explanation:

  I agree with the chosen answer D. User Search is the specific investigative tool within CrowdStrike Falcon designed to aggregate cross-endpoint activity tied to specific identities, which is essential for establishing baseline behavioral patterns for roles like DevOps or general staff.

  Reason

  User Search provides a holistic view of a user's actions, including logins, process executions, and file access across the environment. By correlating these events, a hunter can determine if high-privilege commands are typical for a DevOps engineer's workflow or if they represent an adversary performing lateral movement or credential abuse.

  Why the other options are not as suitable

  • Option A is incorrect because Hash Search focuses on identifying specific file executions across the environment based on their SHA256 or MD5 signatures, which helps find malware but does not provide context on user behavioral roles.
  • Option B is incorrect because IP Search tracks network connections and external communications, which is useful for identifying Command and Control (C2) traffic but lacks the identity-centric data needed to differentiate legitimate admin work from theft.
  • Option C is incorrect because Domain Search (often referred to as Bulk Domain Search) is used to hunt for communications with known malicious infrastructure rather than analyzing the intent of internal user activity.

  Citations

  • https://www.crowdstrike.com/blog/tech-center/user-search-in-crowdstrike-falcon/

• Question 4

  An analyst has sorted all recent detections in the Falcon platform to identify the oldest in an effort to determine the possible first victim host. What is this type of analysis called?

  • A. Visualization of hosts
  • B. Statistical analysis
  • C. Temporal analysis
  • D. Machine Learning

  Correct Answer: C

  Explanation:

  I agree with the community choice of Option C. Identifying the first victim host by sorting detections chronologically is a fundamental aspect of Temporal Analysis, which focuses on the timing and sequence of events during an investigation.

  Reason

  Temporal analysis involves examining the sequence and timing of events to reconstruct an attack timeline. By identifying the oldest detection in the Falcon platform, an analyst can pinpoint the 'patient zero' or the initial point of compromise within the environment.

  Why the other options are not as suitable

  • Option A is incorrect because Visualization of hosts refers to the graphical representation of assets and their relationships, such as network maps, rather than time-based sequencing.
  • Option B is incorrect because Statistical analysis involves mathematical modeling and data aggregation to find patterns or outliers (like frequency of execution), not necessarily the chronological order of specific alerts.
  • Option D is incorrect because Machine Learning is a method used by the Falcon sensor to detect unknown threats based on behavioral patterns, but it is not the name of the manual sorting process used to find the first victim.

  Citations

  • https://www.crowdstrike.com/cybersecurity-101/threat-hunting/
  • https://www.crowdstrike.com/blog/tech-center/get-started-falcon-prevent/

• Question 5

  
  Falcon detected the above file attempting to execute. At initial glance, what indicators can we use to provide an initial analysis of the file?

  • A. VirusTotal, Hybrid Analysis, and Google pivot indicator lights enabled
  • B. File name, path, Local and Global prevalence within the environment
  • C. File path, hard disk volume number, and IOC Management action
  • D. Local prevalence, IOC Management action, and Event Search

  Correct Answer: B

  Explanation:

  I agree with the community consensus for Option B. In the CrowdStrike Falcon console, the Execution Details pane immediately displays metadata such as File Name, File Path, and Prevalence (Local and Global) to help an analyst determine if a file is unique or widespread, which is the standard procedure for initial triage.

  Reason

  Option B is correct because Falcon provides immediate visibility into the File Name and Path to identify the context of the execution. Local Prevalence shows how many hosts in your environment have seen the file, while Global Prevalence indicates how often the file is seen across the entire CrowdStrike community, helping distinguish between common software and targeted threats.

  Why the other options are not as suitable

  • Option A is incorrect because while VirusTotal and Hybrid Analysis are useful external tools, Falcon uses a specific Intelligence indicator light system that is separate from 'pivot indicator lights' as described.
  • Option C is incorrect because a hard disk volume number is rarely used for initial file analysis triage, and IOC Management is a remediation or policy step rather than an initial analysis indicator.
  • Option D is incorrect because Event Search is a secondary, deeper investigation tool rather than an 'initial glance' indicator provided in the primary detection summary.

  Citations

  • https://www.crowdstrike.com/blog/tech-center/falcon-detect-investigate/
  • https://www.crowdstrike.com/cybersecurity-101/endpoint-security/endpoint-detection-and-response-edr/

• Question 6

  A benefit of using a threat hunting framework is that it:

  • A. Automatically generates incident reports
  • B. Eliminates false positives
  • C. Provides high fidelity threat actor attribution
  • D. Provides actionable, repeatable steps to conduct threat hunting

  Correct Answer: D

  Explanation:

  I agree with the community and the suggested answer (Option D). A threat hunting framework is designed to move security teams away from ad-hoc, unstructured searching and toward a methodology that ensures consistency, efficiency, and measurable progress by defining specific, repeatable procedures.

  Reason

  Option D is correct because the primary purpose of a framework (such as the SANS Threat Hunting Maturity Model or PEAK) is to provide a structured, repeatable approach. This ensures that hunting missions are consistent regardless of which analyst is performing them, and that successes can be documented and turned into automated detections.

  Why the other options are not as suitable

  • Option A is incorrect because threat hunting is a manual or semi-automated human-led process; while it can lead to incident reports, the framework itself does not 'automatically' generate them as a SIEM or EDR alert might.
  • Option B is incorrect because no framework can entirely eliminate false positives; frameworks help tune queries to reduce them, but elimination is not a guaranteed benefit.
  • Option C is incorrect because attribution (identifying exactly who the actor is) is often a secondary or tertiary goal of hunting, which primarily focuses on identifying presence and activity rather than establishing high-fidelity political or personal identity.

  Citations

  • https://www.crowdstrike.com/cybersecurity-101/threat-hunting/
  • https://d1.awsstatic.com/events/reinforce/2022/Best_practices_for_threat_hunting_and_investigation_using_EDR_TDR303.pdf

• Question 7

  Which of the following is an example of a Falcon threat hunting lead?

  • A. A routine threat hunt query showing process executions of single letter filename (e.g., a.exe) from temporary directories
  • B. Security appliance logs showing potentially bad traffic to an unknown external IP address
  • C. A help desk ticket for a user clicking on a link in an email causing their machine to become unresponsive and have high CPU usage
  • D. An external report describing a unique 5 character file extension for ransomware encrypted files

  Correct Answer: A

  Explanation:

  I agree with the community consensus that Option A is the correct answer. In CrowdStrike Falcon, a threat hunting lead is typically generated from telemetry data already within the platform, such as suspicious process behaviors or executions that deviate from the baseline, rather than external alerts or help desk reports.

  Reason

  Option A is correct because it describes a proactive search within the Falcon console using Event Search or Falcon Insight. Identifying process executions with single-letter filenames from temporary directories (like AppData\Local\Temp) is a classic behavioral lead used by hunters to find potentially malicious scripts or packed executables that haven't triggered a signature-based detection yet.

  Why the other options are not as suitable

  • Option B is incorrect because logs from a generic security appliance (like a firewall or IDS) are considered external data sources rather than specific Falcon threat hunting leads derived from endpoint telemetry.
  • Option C is incorrect because a help desk ticket is a reactive user-reported incident, not a proactive hunt lead generated by a security analyst investigating Falcon data.
  • Option D is incorrect because an external report describing ransomware extensions is a piece of Threat Intelligence (TI) that could be used to inform a hunt, but the report itself is the indicator/intelligence, not the lead within the Falcon environment.

  Citations

  • https://www.crowdstrike.com/cybersecurity-101/threat-hunting/
  • https://www.crowdstrike.com/blog/tech-center/falcon-overwatch-threat-hunting/

• Question 8

  The Falcon Detections page will attempt to decode Encoded PowerShell Command line parameters when which PowerShell Command line parameter is present?

  • A. -Command
  • B. -Hidden
  • C. -e
  • D. -nop

  Correct Answer: C

  Explanation:

  I agree with the community consensus for Option C. CrowdStrike Falcon is specifically designed to aid incident responders by automatically decoding Base64 strings in command lines when standard PowerShell encoding flags are used, making malicious intent visible directly within the Falcon Detections console.

  Reason

  Option C is correct because -e (along with -EncodedCommand, -enc, etc.) is the PowerShell parameter that signals the following argument is a Base64 encoded string. Falcon identifies this flag and triggers an automated decoding routine to display the cleartext command for analysts.

  Why the other options are not as suitable

  • Option A is incorrect because -Command is used to execute specific script blocks or string commands, but it does not inherently signal that the input is Base64 encoded for the purpose of the Falcon auto-decoder.
  • Option B is incorrect because -Hidden (usually -WindowStyle Hidden) is used to hide the console window from the user's view and does not relate to string encoding.
  • Option D is incorrect because -nop (short for -NoProfile) prevents PowerShell from loading the user profile, which is a common obfuscation technique but not the trigger for parameter decoding.

  Citations

  • https://www.crowdstrike.com/blog/tech-center/detect-and-prevent-powershell-attacks/

• Question 9

  Which structured analytic technique contrasts different hypotheses to determine which is the best leading (prioritized) hypothesis?

  • A. Model hunting framework
  • B. Competitive analysis
  • C. Analysis of competing hypotheses
  • D. Key assumptions check

  Correct Answer: C

  Explanation:

  I agree with the community consensus. Analysis of Competing Hypotheses (ACH) is the industry-standard structured analytic technique specifically designed to evaluate multiple explanations for an event by weighing evidence against each hypothesis to identify the most probable one.

  Reason

  Option C is correct because Analysis of Competing Hypotheses (ACH) involves a systematic process of identifying a complete set of alternative hypotheses, arraying data against them, and attempting to disprove as many as possible. The hypothesis with the least evidence against it often emerges as the leading or prioritized hypothesis, reducing cognitive bias.

  Why the other options are not as suitable

  • Option A is incorrect because Model Hunting is not a standard term for hypothesis prioritization; hunting frameworks typically refer to the methodology used to search for indicators of compromise (IoCs) or behaviors, not the comparison of structured hypotheses.
  • Option B is incorrect because Competitive Analysis is generally a business term used to evaluate market rivals; in intelligence, the correct term for evaluating multiple theories is ACH.
  • Option D is incorrect because a Key Assumptions Check is a foundational technique used to identify and challenge the underlying premises of an analysis, but it does not involve the direct contrasting of multiple hypotheses to pick a winner.

  Citations

  • https://www.crowdstrike.com/cybersecurity-101/threat-intelligence/
  • https://www.cia.gov/resources/csi/books-monographs/psychology-of-intelligence-analysis/chapter-8-analysis-of-competing-hypotheses/

• Question 10

  Which SPL (Splunk) field name can be used to automatically convert Unix times (Epoch) to UTC readable time within the Falcon Event Search?

  • A. utc_time
  • B. conv_time
  • C. _time
  • D. time

  Correct Answer: C

  Explanation:

  I agree with the community choice of Option C. In CrowdStrike Falcon Event Search (which leverages Splunk-based SPL), the _time field is a reserved internal field that automatically handles the conversion of Unix Epoch timestamps into a human-readable UTC format for display in the search results and timelines.

  Reason

  Option C is correct because _time is the default field used by Splunk/Falcon to store the event timestamp. When data is ingested or processed through Event Search, SPL automatically recognizes _time and renders it as a readable date/time string based on the user's timezone settings or UTC, whereas other fields containing epoch integers would remain as raw numbers unless manually converted using the strftime function.

  Why the other options are not as suitable

  • Option A is incorrect because utc_time is not a standard SPL reserved field that performs automatic epoch conversion; while it might appear in specific event schemas, it does not trigger the native formatting behavior of the Falcon UI.
  • Option B is incorrect because conv_time is not a recognized Splunk internal field or a standard Falcon field for automatic timestamp rendering.
  • Option D is incorrect because time is often used as a user-defined field or a part of a schema (like ExternalApiType), but it lacks the built-in indexing and automatic formatting logic tied specifically to the underscore-prefixed _time field.

  Citations

  • https://docs.splunk.com/Splexicon:Timefield
  • https://library.crowdstrike.com/