The answer is to look for anomalous LSASS access patterns using process lineage and call stacks. This approach is correct because hunting for unusual call stacks, rare parent-child process relationships, or unexpected access patterns to LSASS.exe reveals previously unknown credential dumping tools that signature-based detection would miss. On the SC-200 exam, this tests your understanding of behavioral threat hunting versus static detection—a common trap is assuming that adding more signatures or relying on file reputation will catch novel variants, but attackers often use fileless or signed binaries. A key memory tip is "lineage and stacks beat signatures": focus on how a process was launched and what it called, not just what it is named.
SC-200 Perform threat hunting Practice Question
This SC-200 practice question tests your understanding of perform threat hunting. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
An organization uses Microsoft Defender for Endpoint (MDE) to hunt for signs of credential dumping. An analyst runs a custom advanced hunting query that searches for processes accessing LSASS.exe. The query uses DeviceProcessEvents and DeviceFileEvents. The analyst notices that some known credential dumping tools are detected, but they want to find previously unknown variants. Which approach should the analyst take to improve the hunt?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Look for anomalous LSASS access patterns using process lineage and call stacks.
Option C is correct because hunting for anomalous LSASS access patterns (e.g., unusual call stacks, rare processes) helps discover novel tools. Option A is wrong because adding more signatures only catches known variants. Option B is wrong because focusing on file reputation may miss fileless or signed malicious tools. Option D is wrong because MDE already collects LSASS access events; enabling additional logging is not the primary issue.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Enable LSASS auditing via Windows Security Event Log.
Why it's wrong here
MDE already captures LSASS access; additional logging is not needed.
✗
Focus on file reputation data to exclude clean files.
Why it's wrong here
File reputation may not cover novel or custom tools.
✗
Add more signature-based indicators to the query.
Why it's wrong here
Signatures only detect known variants, not unknown ones.
✓
Look for anomalous LSASS access patterns using process lineage and call stacks.
Why this is correct
Anomaly detection helps uncover unknown tools by identifying unusual behavior.
Related concept
Static NAT maps one inside address to one outside address.
Common exam traps
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Detailed technical explanation
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
Static NAT maps one inside address to one outside address.
PAT allows many inside hosts to share one public address using ports.
Inside local and inside global describe the private and translated addresses.
NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
→Identify inside and outside interfaces first.
→Check whether the scenario needs static NAT, dynamic NAT or PAT.
→Do not confuse NAT matching ACLs with normal packet-filtering intent.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Real-world example
How this comes up in practice
A company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this SC-200 question in full detail.
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related SC-200 NAT questions on configuration and troubleshooting.
Perform threat hunting — This question tests Perform threat hunting — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: Look for anomalous LSASS access patterns using process lineage and call stacks. — Option C is correct because hunting for anomalous LSASS access patterns (e.g., unusual call stacks, rare processes) helps discover novel tools. Option A is wrong because adding more signatures only catches known variants. Option B is wrong because focusing on file reputation may miss fileless or signed malicious tools. Option D is wrong because MDE already collects LSASS access events; enabling additional logging is not the primary issue.
What should I do if I get this SC-200 question wrong?
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related SC-200 NAT questions on configuration and troubleshooting.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
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Question Discussion
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