nerdexam
EC-Council

312-50V13 · Question #144

ViruXine.W32 virus hides their presence by changing the underlying executable code. This Virus code mutates while keeping the original algorithm intact, the code changes itself each time it runs…

The correct answer is A. Polymorphic Virus. The described virus, which changes its executable code upon each infection while maintaining the same original algorithm and function, is known as a polymorphic virus.

Submitted by marco_it· Mar 6, 2026Malware Threats

Question

ViruXine.W32 virus hides their presence by changing the underlying executable code. This Virus code mutates while keeping the original algorithm intact, the code changes itself each time it runs, but the function of the code (its semantics) will not change at all. Here is a section of the Virus code: What is this technique called?

Exhibit

312-50V13 question #144 exhibit

Options

  • APolymorphic Virus
  • BMetamorphic Virus
  • CDravidic Virus
  • DStealth Virus

How the community answered

(30 responses)
  • A
    87% (26)
  • B
    3% (1)
  • C
    3% (1)
  • D
    7% (2)

Why each option

The described virus, which changes its executable code upon each infection while maintaining the same original algorithm and function, is known as a polymorphic virus.

APolymorphic VirusCorrect

A polymorphic virus is malware that changes its identifiable code or encryption method each time it replicates or executes, allowing it to present a different signature to antivirus software while its core malicious functionality remains unchanged.

BMetamorphic Virus

A metamorphic virus rewrites its entire code, including its underlying algorithm, making it structurally different each time, which is distinct from a polymorphic virus that only changes its appearance.

CDravidic Virus

'Dravidic Virus' is not a recognized or standard classification for a type of computer virus in cybersecurity.

DStealth Virus

A stealth virus focuses on actively hiding its presence or modifications it makes to the system from detection, but it doesn't inherently change its own code as it spreads.

Concept tested: Malware types - polymorphic viruses

Source: https://www.cisco.com/c/en/us/products/security/what-is-polymorphic-malware.html

Topics

#malware#polymorphic virus#virus evasion

Community Discussion

No community discussion yet for this question.

Full 312-50V13 Practice