Virus&

Hacker

GROUP 4: Đào Lan Anh Nguyễn Thị Linh Lê Thanh Huyền

OUTLINE

Virus Hacker Prevention

Virus

Definition ClassificationWorking Symptoms

Definition

• A computer virus is a program that can copy itself and infect a computer

• A computer virus has 2 major characteristics:

the ability to replicate itself the ability to attack to anther file

Classification

Method of

infecting

• Resident• Non- resident

Classification

Working algorithm

Parasitic Mutants Replicators Trojan horse Invisible

Symptoms

Slow response and slow program execution

Random hard drive crash and restart

Distorted graphic and text

File have mysteriously vanished

Extensive pop-up ads

Inability to open file with existing password

Working of virusesInfector copies

the viruses

Detonator performs

the virus’s main work

Computer is infected

with viruses

HACKER

Definition Purposes Hacking process ClassificationNegative effects

HackerNguyễn Văn Hòa, 1991, Ho

Chi Minh University of Science and Technology, hacking credit card of foreigners, earned more than 7 billion dong.

HACKER

Definition Purposes Hacking process ClassificationNegative effects

Definition

• A hacker originally means someone who like to do new things with computers.

• In the computer security context, a hacker is a person who uses a computer to look at and/or change information on another computer without permission.

Definition

Classification

Level of knowledge

Code Programmer

Admins

Script kiddie

Cap or characteristic

White Hat- Ethical Hackers

Black Hat- Malicious Hacker

Grey Hat, Blue Hat…

Purposes

Credit Card Information(for money)

Identity TheftBusiness Information

Hacking processFoot Printing

Scanning

Enumeration Gaining Access

Privilege Escalation

Pilfering Creating Backdoors

Covering Tracks

Stage 1 Stage 2 Stage 3

Negative effects

Financial losses Loss of information

Mr. Andy Ám Ảnh

Lạnh

Lùng

Prevention

Viruses Hacker

Prevention virus

Do not open unknown attachments in emails

How to prevent viruses

Download files only from trusted sites

How to prevent viruses

How to prevent viruses

Use Anti-virus Protection Software and update regularly

How to prevent viruses

• replace files with your backup copy

• store your backup copy in a separate location from your work files

Create backup files

Prevention hacker

Install a firewall

Firewalls refer to either software or hardware:

block network traffic coming to and leaving a system

give permission to transmit and receive only to user-authorized software

How to prevent hacker

Install Anti-spyware programs

How to prevent hacker

Advertising

Collecting personal information

Changing the configuration of

computer

Use strong passwords

Don’t use:

real words or combinations thereof

numbers of significance

similar password for all your accounts

How to prevent hacker

Virus Hacker Prevention

Conclusion

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