220-1102 · Question #741
A user receives a message on a PC stating it has been infected by malware. A technician runs a full scan on the user's machine and detects no malware. Later that day, the same message reappears…
The correct answer is B. Reimage the computer. When a full antivirus scan detects nothing yet symptoms persist, this strongly suggests a sophisticated or deeply embedded threat-such as a rootkit or fileless malware-that evades standard scanning tools. The most reliable remediation is to reimage (wipe and reinstall) the…
Question
A user receives a message on a PC stating it has been infected by malware. A technician runs a full scan on the user's machine and detects no malware. Later that day, the same message reappears. Which of the following steps should the technician take to restore the system to regular functionality?
Options
- ACheck for Windows updates.
- BReimage the computer.
- CEnable Windows Firewall.
- DRun System File Checker.
How the community answered
(29 responses)- A3% (1)
- B79% (23)
- C7% (2)
- D10% (3)
Explanation
When a full antivirus scan detects nothing yet symptoms persist, this strongly suggests a sophisticated or deeply embedded threat-such as a rootkit or fileless malware-that evades standard scanning tools. The most reliable remediation is to reimage (wipe and reinstall) the operating system, which eliminates any persistent threat regardless of how it hides. Checking for Windows updates (A) and enabling the firewall (C) do not remove existing malware. Running System File Checker (D) repairs corrupted OS files but cannot detect or remove malware that actively evades detection. Reimaging is the definitive solution when other approaches fail.
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