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 can contain malicious macros or embedded objects.. 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 root-cause analysis phase, Which finding would most directly explain the activity?
Office document spawning a script interpreter from a user context
Office-to-script process chains are common initial execution patterns for phishing payloads.
High CPU usage on the print server
Why wrong: Print server CPU does not explain the user's suspicious process chain.
A password expiry warning
Why wrong: Password warnings are unrelated to script execution.
Successful DHCP renewal
Why wrong: DHCP renewal is normal network operation.
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 A is correct because the scenario describes a classic phishing attack where a malicious macro or embedded script in an Office document (the invoice) executes wscript.exe from the user's profile. This behavior matches the detection logic of 'Office document spawning a script interpreter from a user context,' which is a key indicator of script-based malware execution. The root-cause analysis would identify the malicious document as the initial vector, directly explaining the subsequent process execution.
Key principle: Office documents can contain malicious macros or embedded objects.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
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 can contain malicious macros or embedded objects.
High CPU usage on the print server
Why it's wrong here
Print server CPU does not explain the user's suspicious process chain.
A password expiry warning
Why it's wrong here
Password warnings are unrelated to script execution.
Successful DHCP renewal
Why it's wrong here
DHCP renewal is normal network operation.
Common exam traps
Cisco often tests the distinction between a security detection logic (process ancestry) and unrelated operational metrics (CPU usage, password expiry) to see if candidates can focus on the direct cause of a security incident rather than being distracted by noise.
Detailed technical explanation
Under the hood, wscript.exe is the Windows Script Host for VBScript and JScript, often abused by malware to execute scripts dropped by Office macros. The detection logic relies on process ancestry analysis—specifically, monitoring for child processes like wscript.exe or cmd.exe spawned by winword.exe or excel.exe from non-standard locations (e.g., user profile temp folders). In real-world attacks, this technique bypasses application whitelisting because the script runs from a trusted user context.
Key takeaway
Office documents can contain malicious macros or embedded objects.
Real-world example
An employee at a financial services firm receives an email that appears to come from the IT helpdesk, asking them to reset their password via a link. The link leads to a convincing fake portal that harvests credentials. Security teams use phishing simulations and security-awareness training to reduce this attack vector. Questions like this test whether you can identify social engineering techniques and appropriate controls.
What to study next
Review office documents can contain malicious macros or embedded objects., then practise related CS0-003 questions on the same topic to reinforce the concept.
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FAQ
Security Operations — This question tests Security Operations — Office documents can contain malicious macros or embedded objects..
The correct answer is: Office document spawning a script interpreter from a user context — Option A is correct because the scenario describes a classic phishing attack where a malicious macro or embedded script in an Office document (the invoice) executes wscript.exe from the user's profile. This behavior matches the detection logic of 'Office document spawning a script interpreter from a user context,' which is a key indicator of script-based malware execution. The root-cause analysis would identify the malicious document as the initial vector, directly explaining the subsequent process execution.
Review office documents can contain malicious macros or embedded objects., then practise related CS0-003 questions on the same topic to reinforce the concept.
Office documents can contain malicious macros or embedded objects.
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Last reviewed: Jun 11, 2026
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