Which of the following types of viruses protects itself from antivirus programs and is more difficult
to trace?
A.
Armored virus
B.
MBR virus
C.
Boot sector virus
D.
Macro virus
Explanation:
An armored virus is designed to stop antivirus researchers from examining its code by using various
methods to make tracing and disassembling difficult. This type of virus also protects itself from
antivirus programs, making it more difficult to trace.Answer D is incorrect. A macro virus is a virus that consists of a macro code which infects the
system. A Macro virus can infect a system rapidly. Since this virus has VB event handlers, it is
dynamic in nature and displays random activation. The victim has only to open a file having a macro
virus in order to infect the system with the virus. DMV, Nuclear, and Word Concept are some good
examples of macro viruses.Answer C is incorrect. A boot sector virus infects the master boot files of the hard disk or floppy
disk. Boot record programs are responsible for booting the operating system. The boot sector virus
copies these programs into another part of the hard disk or overwrites these files.Answer B is incorrect. A Master boot record (MBR) virus replaces the boot sector data with its own
malicious code. Every time when the computer starts up, the boot sector virus executes.