This CS0-003 practice question tests your understanding of security operations. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. A key principle to apply: office documents are common initial access vectors for malware.. 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.
A user opens an invoice document and shortly afterward the endpoint runs wscript.exe from the user's profile. Which detection logic is most relevant? In the alert triage phase, Which action gives the analyst the clearest next triage step?
Successful DHCP renewal
Why wrong: DHCP renewal is normal network operation.
A password expiry warning
Why wrong: Password warnings are unrelated to script execution.
High CPU usage on the print server
Why wrong: Print server CPU does not explain the user's suspicious process chain.
Office document spawning a script interpreter from a user context
Office-to-script process chains are common initial execution patterns for phishing payloads.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Office document spawning a script interpreter from a user context
Option D is correct because the scenario describes a classic technique where a malicious macro or script embedded in an Office document executes wscript.exe (Windows Script Host) from the user's profile. This detection logic directly identifies the suspicious parent-child process relationship of an Office application spawning a script interpreter, which is a strong indicator of a script-based attack, such as a macro virus or initial access payload.
Key principle: Office documents are common initial access vectors for malware.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Successful DHCP renewal
Why it's wrong here
DHCP renewal is normal network operation.
A password expiry warning
Why it's wrong here
Password warnings are unrelated to script execution.
High CPU usage on the print server
Why it's wrong here
Print server CPU does not explain the user's suspicious process chain.
Office document spawning a script interpreter from a user context
Why this is correct
Office-to-script process chains are common initial execution patterns for phishing payloads.
Related concept
Office documents are common initial access vectors for malware.
Common exam traps
CompTIA often tests the concept of process lineage and anomalous parent-child relationships, where candidates may mistakenly focus on system-level performance or network events instead of recognizing that the key indicator is the Office document spawning a script interpreter from the user's profile.
Detailed technical explanation
Under the hood, Windows Script Host (wscript.exe) can be launched by Office applications via the Windows Scripting Host object model (e.g., using VBA's CreateObject("WScript.Shell")). Detection logic often relies on Sysmon Event ID 1 (Process Creation) or Windows Event ID 4688, filtering for parent processes like WINWORD.EXE or EXCEL.EXE spawning child processes such as wscript.exe, cscript.exe, or powershell.exe. In real-world attacks, adversaries may also use living-off-the-land binaries (LOLBins) like mshta.exe or regsvr32.exe to evade detection, but the core pattern remains the same: an Office document spawning an interpreter from a user context.
Key takeaway
Office documents are common initial access vectors for malware.
Real-world example
A security analyst at a medium-sized enterprise encounters this scenario during an investigation or architecture review. The correct answer reflects best practice for the specific threat or control described. Office documents are common initial access vectors for malware. Security exam questions test whether you can match controls to threats in context — not just recall definitions.
What to study next
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FAQ
Security Operations — This question tests Security Operations — Office documents are common initial access vectors for malware..
The correct answer is: Office document spawning a script interpreter from a user context — Option D is correct because the scenario describes a classic technique where a malicious macro or script embedded in an Office document executes wscript.exe (Windows Script Host) from the user's profile. This detection logic directly identifies the suspicious parent-child process relationship of an Office application spawning a script interpreter, which is a strong indicator of a script-based attack, such as a macro virus or initial access payload.
Review office documents are common initial access vectors for malware., then practise related CS0-003 questions on the same topic to reinforce the concept.
Office documents are common initial access vectors for malware.
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Last reviewed: Jun 30, 2026
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