Palo Alto Networks XSIAM-Analyst 問題集

質問 1：
Which two statements apply to IOC rules? (Choose two.)
A. They can be used to detect a specific registry key.
B. They can be uploaded using REST API.
C. They can have an expiration date of up to 180 days.
D. They can be excluded using suppression rules but not alert exclusions.
正解：A,B
解説: (Topexam メンバーにのみ表示されます)

質問 2：
During an investigation, an analyst runs the reputation script for an indicator that is listed as Suspicious. The new reputation results display in the War Room as Malicious; however, the indicator verdict does not change.
What is the cause of this behavior?
A. The indicator exists as an IOC rule.
B. The indicator has been excluded.
C. The indicator verdict was manually set to Suspicious.
D. The indicator is expired.
正解：C
解説: (Topexam メンバーにのみ表示されます)

質問 3：
A security analyst has been assigned a ticket from the help desk stating that users are experiencing errors when attempting to open files on a specific network share. These errors state that the file format cannot be opened. IT has verified that the file server is online and functioning, but that all files have unusual extensions attached to them.
The security analyst reviews alerts within Cortex XSIAM and identifies malicious activity related to a possible ransomware attack on the file server. This incident is then escalated to the incident response team for further investigation.
Upon reviewing the incident, the responders confirm that ransomware was successfully executed on the file server. Other details of the attack are noted below:
- An unpatched vulnerability on an externally facing web server was
exploited for initial access
- The attackers successfully used Mimikatz to dump sensitive
credentials that were used for privilege escalation
- PowerShell was used on a Windows server for additional discovery, as
well as lateral movement to other systems
- The attackers executed SystemBC RAT on multiple systems to maintain
remote access
- Ransomware payload was downloaded on the file server via an external
site, "file.io"
Refer to the scenario to answer this question:
Which hunt collection category in Cortex XSIAM should the incident responders use to identify all systems where the attackers established persistence during the attack?
A. Network Data
B. Command History
C. Remote Access
D. Process Execution
正解：C
解説: (Topexam メンバーにのみ表示されます)

質問 4：
Why would an analyst schedule an XQL query?
A. To auto-resolve a false positive alert
B. To retrieve data either at specific intervals or at a specified time
C. To trigger endpoint isolation action
D. To increase accuracy of queries during off-peak load times
正解：B
解説: (Topexam メンバーにのみ表示されます)

質問 5：
A threat hunter discovers a true negative event from a zero-day exploit that is using privilege escalation to launch "Malware.pdf.exe." Which XQL query will always show the correct user context used to launch "Malware.pdf.exe"?
config case_sensitive = false | dataset = xdr_data | filter event_type =
A. ENUM.PROCESS | filter action_process_image_name = "Malware.pdf.exe" |
fields action_process_username
config case_sensitive = false | datamodel dataset = xdr_data | filter
B. ENUM.PROCESS | filter action_process_image "Malware.pdf.exe" | fields
actor_process_username
C. ENUM.PROCESS | filter action_process_image_name = "Malware.pdf.exe" |
fields causality_actor_effective_username
config case_sensitive = false | dataset = xdr_data | filter event_type =
D. xdm.source.process.name = "Malware.pdf.exe" | fields
xdm.target.user.username
config case_sensitive = false | dataset = xdr_data | filter event_type =
正解：C
解説: (Topexam メンバーにのみ表示されます)

質問 6：
A security analyst has been assigned a ticket from the help desk stating that users are experiencing errors when attempting to open files on a specific network share. These errors state that the file format cannot be opened. IT has verified that the file server is online and functioning, but that all files have unusual extensions attached to them.
The security analyst reviews alerts within Cortex XSIAM and identifies malicious activity related to a possible ransomware attack on the file server. This incident is then escalated to the incident response team for further investigation.
Upon reviewing the incident, the responders confirm that ransomware was successfully executed on the file server. Other details of the attack are noted below:
- An unpatched vulnerability on an externally facing web server was
exploited for initial access
- The attackers successfully used Mimikatz to dump sensitive
credentials that were used for privilege escalation
- PowerShell was used on a Windows server for additional discovery, as
well as lateral movement to other systems
- The attackers executed SystemBC RAT on multiple systems to maintain
remote access
- Ransomware payload was downloaded on the file server via an external
site, "file.io"
Refer to the scenario to answer this question:
Which forensics artifact collected by Cortex XSIAM will help the responders identify what the attackers were looking for during the discovery phase of the attack?
A. User access logging
B. WordWheelQuery
C. PSReadline
D. Shell history
正解：D
解説: (Topexam メンバーにのみ表示されます)

質問 7：
Which tab in the XQL search page has information on the various field data types?
A. Schema
B. Query Results
C. Query Library
D. XQL Helper
正解：A
解説: (Topexam メンバーにのみ表示されます)

質問 8：
What information is provided in the timeline view of Cortex XSIAM?
A. Detailed overview of behavior or activity that triggered an Analytics Alert, Analytics BIOC alert, or correlation rule
B. Tab within an incident where analysts can collaborate and initiate further actions and automations
C. Sequence of events, alerts, rules, and other actions involved over the lifespan of an incident
D. Graphic representation of an event Causality Instance (CI) with additional capabilities to enable further analysis
正解：C
解説: (Topexam メンバーにのみ表示されます)