CISSP Practice question #237

One of our engineers has found a virus on one of our systems that keeps changing signature. What type of virus is it?
A: Macro virus.
B: Stealth virus.
C: Multipart.
D: Polymorphic.

CBK 3: Security Engineering
Source: ThorTeaches.com practice tests –

Answer


D: Polymorphic Viruses: Change their signature to avoid the antivirus signature definitions. Well-written polymorphic viruses have no parts which remain identical between infections, making it very difficult to detect directly using antivirus signatures. 

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