CompTIA Server+ SK0-005 Practice Question
While reviewing a Windows Server 2022 file server that had been operating normally, you observe the following:
- Microsoft Defender Antivirus service is stopped and records event ID 5010 "The service terminated unexpectedly" every few minutes; attempts to restart the service fail.
- Resource Monitor shows an instance of svchost.exe establishing hundreds of outbound TCP connections on port 445 to IP addresses in several countries, even though no clients are currently connected.
- Executable files with random eight-character names (for example, a8f9.tmp.exe) appear in C:\ProgramData\Temp every few minutes.
- Hardware diagnostics, memory tests, disk checks, and NIC driver/firmware versions all report healthy and current.
Based on this evidence, which of the following is the MOST likely root cause of the problem?
Corruption in the NTFS filesystem is causing orphan temporary files to be created repeatedly.
A faulty or incompatible NIC driver is generating phantom network connections.
A virus infection is actively running on the server and attempting to spread.
DNS cache poisoning on the domain controller is redirecting outbound traffic to malicious hosts.