This document discusses keyloggers and spyware. It defines keyloggers as programs that covertly record keys struck on a keyboard and spyware as software that gathers information about a user without their consent. It describes the four main types of spyware as system monitors/keyloggers, trojans, adware, and tracking cookies. The document outlines the parts of keyloggers, including the control program, hook file, and log file. It notes keyloggers and system monitors pose serious privacy risks by secretly capturing and transmitting personal information like passwords.

1. NETWORK SECURITY
CLASS AEP 06
NGUYEN VAN HOANG – 11520564
TRAN MINH TRI - 10520452
University of Information Technology
Teacher: NGUYEN TUAN NAM

2. Demo keylogger

3. Introduction
Spyware is software that aids in gathering information about a person or
organization without their knowledge and that may send such information to
another entity without the consumer's consent, or that asserts control over a
computer without the consumer's knowledge
Spyware is mostly used for the purposes such as: tracking and storing internet
users' movements on the web; gathering info …

4. Introduction
“Spyware” is mostly classified into four types: system monitors/keyloggers,
trojans, adware, and tracking cookies
Whenever spyware is used for malicious purposes, its presence is typically
hidden from the user and can be difficult to detect. Some spyware, such as
keyloggers, may be installed by the owner of a shared, corporate, or public
computer intentionally in order to monitor users

5. Introduction
Keylogger is the program that is the action of recording (or logging) the keys
use on a keyboard, typically in a covert manner so that the person using the
keyboard is unaware that their actions are being monitored. Nowaday, when
keylogger has been developed at high level. It can record all images, which is
displayed in the screen by screen-shot or screen-capture, even they can record
the movement of mouse pointer

6. Introduction
External Keyloggers (hardware)
Hardware based keyloggers use physical tools, either attached to the computer
or designed to look like part of the computer, to covertly record actions taken by
computer users.
When the person who places the keylogger is ready to retrieve the information
recorded, he or she will have to remove the keylogger, like a memory card, and
download the information to their computer, where the log of struck keys can
be viewed

8. Introduction
Internal Keyloggers (software)
Software based keyloggers use digital code to capture and record the keystrokes
made on a computer without use of physical hardware
The keylogging program is installed on the computer to be monitored like other
programs; either from a CD-ROM or downloaded directly from the internet.
Once installed, the application’s files are hidden deep in a computer’s system so
that the casual computer user will never notice them; and they run without
displaying any signs to the computer user that a covert program is running in
the background

9. Parts of Keyloggers
Typically, a keylogger program will consist of three main parts:
Control Program: used to coordinate activities, tweak the settings, see
the log file for Keylogger. This section is the most technical part of the
hidden keylogger, usually only able to call by using a special keystroke
combinations.
Hook file, or as a monitor program to record your keystrokes, capture
screen (this is the most important part).
Log file, which full contains / record of what was recorded by hook

10. Demo Keylogger

11. Note
“Spyware” is mostly classified into four types: system monitors/keyloggers,
trojans, adware, and tracking cookies
System monitors/keyloggers render serious privacy risks because they secretly
capture and transmit user's personal information, worse still, passwords used in
online transactions
Trojans can be used to obtain sensitive information, install malicious programs,
hijack the computer, or compromise additional computers or networks
Adware tracks the users' online activities on the internet to deliver targeted
pop-up advertisements
Tracking cookies are the uninformed small text files downloaded to a user's
computer that preserves preferences on specific websites