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Exam PCNSA topic 1 question 186 discussion

Actual exam question from Palo Alto Networks's PCNSA
Question #: 186
Topic #: 1
[All PCNSA Questions]

A coworker found a USB labeled "confidential in the parking lot. They inserted the drive and it infected their corporate laptop with unknown malware The malware caused the laptop to begin infiltrating corporate data.
Which Security Profile feature could have been used to detect the malware on the laptop?

  • A. DNS Sinkhole
  • B. WildFire Analysis
  • C. Antivirus
  • D. DoS Protection
Show Suggested Answer Hide Answer
Suggested Answer: C 🗳️
by Hyay at Sept. 20, 2022, 10:18 a.m.

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Surfside92
Highly Voted 2 years, 7 months ago
Selected Answer: C
The key word in the question = Detect Antivirus security profiles protect against viruses, worms, and trojans as well as spyware downloads. Answer A will indeed deal with the spyware when it kicks in and tries to do its stuff - but its Antivirus that detects it.
upvoted 10 times
Racoon1
1 year, 8 months ago
It only detects it while the traffic content in transit on the FW is being inspected. In addition, you can enable the DNS Sinkholing action in Anti-Spyware profiles to enable the firewall to forge a response to a DNS query for a known malicious domain, causing the malicious domain name to resolve to an IP address that you define. This feature helps to identify infected hosts on the protected network using DNS traffic. Infected hosts can then be easily identified in the traffic and threat logs because any host that attempts to connect to the sinkhole IP address is most likely infected with malware. Anti-Spyware and Vulnerability Protection profiles are configured similarly.
upvoted 2 times
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Gabyi
Highly Voted 1 year ago
I would say that the right answer would be B, Wildfire Analysis. The laptop was infected with UNKNOWN malware, there are no AV signatures that could detect it, there is no KNOWN malicious domain for a DNS Sinkhole, and DoS protection does not apply here. So the only possible way to detect a Zero-day or UNKNOWN malware would be a Wildfire Analysis.
upvoted 5 times
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dragossky
Most Recent 8 months, 1 week ago
Selected Answer: C
Antivirus
upvoted 1 times
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abbasr
8 months, 2 weeks ago
Correct Answer is B WildFire Analysis: This feature provides advanced threat detection by analyzing files and malware in a cloud-based sandbox environment. WildFire can detect and identify new and unknown malware that may not yet have signatures in the antivirus database. It helps in analyzing suspicious files and determining if they exhibit malicious behavior, which would be useful in identifying and mitigating the malware from the USB drive.
upvoted 3 times
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Janhattal
10 months, 2 weeks ago
the correct answer is C. not A - DNS sinkholing helps you to identify infected hosts on the protected network using DNS traffic in situations where the firewall cannot see the infected client's
upvoted 1 times
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[Removed]
1 year ago
Selected Answer: A
Sorry I might be wrong in my last comment. The PA AV isn't running on the endpoint. Malware is delivered via USB. S, now only DNS sinkhole can get info about infected endpoints.https://docs.paloaltonetworks.com/pan-os/9-1/pan-os-admin/threat-prevention/use-dns-queries-toidentify-infected-hosts-on-the-network/dns-sinkholing.
upvoted 1 times
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[Removed]
1 year ago
Selected Answer: C
I would say that he key word in the question = Detect on the laptop for detections on the user endpoint is the antivirus for detections on outgoing traffic is the DNS SinkHole
upvoted 1 times
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DIG_Tofu
1 year, 1 month ago
Selected Answer: C
Seems to be C. The question talking about "security profile feature". That's more logic to talk about of the "feature" in the "global" aspect knowing that the sinkhole is an option of the anti-spyware security profile feature. In this case if the correct answer is A, the answer should be "anti-spyware" instead of sinkhole. Maybe i'm wrong. Curious to know your thoughts about it.
upvoted 1 times
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TG_Viper
1 year, 1 month ago
"Unknown malware" has NO signature yet...therefore needs Wildfire to detect and analyze the unknown threat...you can use DNS sinkhole to detect the infected hosts when they are attempting outbound connections to known malicious sites...best answer is use both...this question needs improvement on the wording!
upvoted 4 times
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443Annny
1 year, 4 months ago
Selected Answer: A
i think its A
upvoted 1 times
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Racoon1
1 year, 8 months ago
Selected Answer: A
With C: Antivirus It only detects it while the traffic content is in transit on the FW is being inspected. File has been transferred already via USB, hence bypassing the AV on the FW>.
upvoted 1 times
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Zeruz
1 year, 9 months ago
Selected Answer: C
C: The question says: detect malware.
upvoted 1 times
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Sanjug2022
1 year, 10 months ago
Answer is C , Antivirus profiles protect against viruses, worms, and trojans as well as spyware downloads. Using a stream-based malware prevention engine, which inspects traffic the moment the first packet is received, the Palo Alto Networks antivirus solution can provide protection for clients without significantly impacting the performance of the firewall. This profile scans for a wide variety of malware in executables, PDF files, HTML and JavaScript viruses
upvoted 2 times
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Ermbmx2
1 year, 12 months ago
Selected Answer: C
Because it says "detect malware ON the laptop" I will have to vote C. As DNS sinkhole wouldn't be actually ON the laptop and would have to be detected on the firewall or sinkhole log. It's a poorly worded question IMO.
upvoted 2 times
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Kalender
1 year, 12 months ago
Selected Answer: C
DNS Sinkhole is for "Malicious Domain" detection. But Antivius is for malvare detection And the question is about "Malware Detection" ..."In addition, you can enable the DNS Sinkholing action in Anti-Spyware profiles to enable the firewall to forge a response to a DNS query for a known malicious domain, causing the malicious domain name to resolve to an IP address that you define..." (https://docs.paloaltonetworks.com/pan-os/9-1/pan-os-admin/policy/security-profiles)
upvoted 1 times
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nolox
2 years, 1 month ago
Selected Answer: A
Because of word "Feature" https://docs.paloaltonetworks.com/pan-os/9-1/pan-os-admin/policy/security-profiles
upvoted 1 times
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SillyGoose123
2 years, 1 month ago
Selected Answer: C
A DNS sinkhole can be set up to prevent C2 communications, but will not detect a virus
upvoted 2 times
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