This document provides an overview of different types of malware: viruses, Trojan horses, and worms. It defines malware as malicious software designed to damage computers without consent. Viruses attach to executable files and require human action like opening an infected file to spread. Trojan horses appear to be useful software but can steal information or damage systems. Worms can spread without human action by taking advantage of file sharing and replicating large numbers of copies on a system. The document explains key differences between these types of malware and how understanding them helps protect computers.

2. PRESENTATION TOPIC:
MALWARE AND IT’S TYPES
PRESENTED BY:
AAKASH AHMED

3. MALWARE:
 Malware is short for “Malicious Software”. It is
Computer programs designed to infiltrate and
damage computers without the user consent.
 Simply malware is any of software that was
written with the intent of doing harm to data
devices or to people it is malware which
causing damage to a computer or network.
Malware is the general term covering all the
different types of threats to our computer
safety such as Virus, Trojan, Worms and so
on. There are differences among these
programs and knowing those differences can
help we better protect our computer from
damaging effects.

5.  A computer virus attaches itself to a program or
file enabling it to spread from one computer to
another leaving infections as it travels. Some
viruses cause only mildly annoying effects while
other can damage our hardware, software or
files. Almost all viruses are attached to an
executable file, which means the virus may
exist on our computer but it actually cannot
infect our computer unless we run or open the
malicious program. It is mostly known to spread
when software is shared between computers.
 Fast Facts: Attaches to an executable file,
require human action to spread.
VIRUS:

6.  The Trojan Horse, at first glance will appear to be
useful software but will actually do damage once
installed or run on our computer. They may be
programmed to steal personal and financial
information, and later take over the resources of the
user computer’s system files. Some Trojans are
designed to be more annoying than malicious (like
changing your desktop, adding silly active desktop
icons) or they can cause serious damage by
deleting files and destroying information on our
system. Trojans are also known to create
a backdoor on our computer that gives malicious
users access to our system. Unlike viruses and
worms, Trojans do not reproduce by infecting other
files nor do they self-replicate.
TROJAN HORSE:

7.  Worms spread from computer to computer, but
unlike a virus, it has the capability to travel
without any human action. A worm takes
advantage of file or information transport
features on our system which means destroys
information and files saved on our PC. The
biggest danger with a worm is its capability to
replicate itself on our system so rather than
our computer sending out a single worm, it
could send out hundreds or thousands of
copies of itself, creating a huge devastating
effect.
 Fast Facts: Can replicate itself on system,
does not require human action to spread.
WORM: