A Trojan horse is a destructive program that masquerades as a benign application. It does not replicate like viruses but can still cause damage. Trojan horses are classified based on how they breach systems and the damage they cause. The main types are remote access Trojans, data sending Trojans, destructive Trojans, proxy Trojans, FTP Trojans, security software disabler Trojans, and DoS attack Trojans. People can protect themselves by not opening emails from unknown senders, using antivirus software, and disconnecting from the internet if infected.

1. THE TROJAN HORSE
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2. WHAT IS TROJAN HORSE?
A destructive program that
masquerades as a benign application.
Unlike viruses, Trojan horses do not
replicate themselves but they can be just
as destructive. One of the most insidious
types of Trojan horse is a program that
claims to rid your computer of viruses but
instead introduces viruses onto your
computer.
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3. PURPOSE & USES
A Trojan may give a hacker remote access to
a targeted computer system. Operations that could be
performed by a hacker on a targeted computer
system may include:
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Use of the machine as part of a botnet (e.g. to perform
automated spamming or to distribute Denial-of-service attacks)
Crashing the computer
Blue screen of death
Electronic money theft
Data theft (e.g. retrieving passwords or credit card information)
Installation of software, including thirdparty malware and ransomware
Downloading or uploading of files on the user's computer
Modification or deletion of files
Keystroke logging
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4. Trojan horses are broken down in
classification based on how they
breach systems and the damage
they cause.
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5. MAIN TYPES OF TROJAN
HORSES
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6. 1. REMOTE ACCESS TROJANS
is one of seven major types of
Trojan horse designed to
provide the attacker with
complete control of the victim's
system.
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7. 2. DATA SENDING TROJANS
is type of a Trojan horse that
is designed to provide the
attacker with sensitive
data such as passwords,
credit card information, log
files, e-mail address or
IM contact lists.
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8. 3. DESTRUCTIVE TROJANS
is type of a Trojan horse to
destroy and delete files, and is
more like a virus than any
other Trojan
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9. 4. PROXY TROJANS
is type of a Trojan
horse designed to use the
victim's computer as a proxy
server.
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10. 5. FILE TRANSFER PROTOCOL
(FTP) TROJANS
is type of a Trojan horse designed
to open port 21 (the port
for FTP transfer) and lets the
attacker connect to
your computer using File Transfer
Protocol (FTP).
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11. 6. SECURITY SOFTWARE
DISABLER TROJANS
is type of a Trojan horse
designed stop or
kill security programs such as an
antivirus
program or firewall without the
user knowing.
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12. 7. DENIAL OF SERVICE (DoS)
ATTACK TROJANS
is type of attack on a network that
is designed to bring the network
to its knees by flooding it with
useless traffic.
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13. PROTECTING
YOURSELF FROM
TROJAN HORSES
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14. There are several things
you can do to protect
yourself from Trojan
horses….
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15. •
Never open any e-mails or download any
attachments from unknown senders.
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Installing antivirus software will also scan
every file you download.
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If you ever find your computer has been
infected with a Trojan, you should disconnect
your Internet connection and remove the files
in question with an antivirus program or by
reinstalling your operating system.
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You can call your computer's manufacturer,
your local computer store or a knowledgeable
friend if you need help.
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16. reference
• Wikipedia.org
• How Stuff Works
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