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ExamsCAS-002Questions#41
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CAS-002 · Question #41

CAS-002 Question #41: Real Exam Question with Answer & Explanation

The correct answer is D: The virus is trying to access a virtual device which the hypervisor is configured to restrict.. The virus is attempting to access virtual hardware devices (such as a virtual network adapter, USB controller, or disk interface) that the hypervisor has restricted. Hypervisors like VMware ESXi or Hyper-V control which virtual devices a VM can interact with. When the virus execu

Question

A user on a virtual machine downloads a large file using a popular peer-to-peer torrent program. The user is unable to execute the program on their VM. A security administrator scans the VM and detects a virus in the program. The administrator reviews the hypervisor logs and correlates several access attempts to the time of execution of the virus. Which of the following is the MOST likely explanation for this behavior?

Options

  • AThe hypervisor host does not have hardware acceleration enabled and does not allow DEP.
  • BThe virus scanner on the VM changes file extensions of all programs downloaded via P2P
  • CThe virtual machine is configured to require administrator rights to execute all programs.
  • DThe virus is trying to access a virtual device which the hypervisor is configured to restrict.

Explanation

The virus is attempting to access virtual hardware devices (such as a virtual network adapter, USB controller, or disk interface) that the hypervisor has restricted. Hypervisors like VMware ESXi or Hyper-V control which virtual devices a VM can interact with. When the virus executed and attempted to access these restricted virtual devices, the hypervisor logged the access attempts - which is exactly what the administrator correlated. This is a common behavior for malware designed to attack hypervisor-managed resources or attempt VM escape. Option A is irrelevant because DEP/hardware acceleration affects execution prevention, not device access logs. Option B is a distractor about file extensions. Option C would prevent the program from running at all, not generate device access attempts in hypervisor logs.

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