Lecture 18HACKING (CONTINUED)

WHY DO PEOPLE HACK ?

JUST FOR FUN.SHOW OF THEIR KNOWLEDGE.HACK OTHER SYSTEM SECRETLY.DESTROY ENEMY’S COMPUTER NETWORK

DURING THE WAR.FOR PROFIT PEOPLE PAYS A CRACKER.CRACK FOR SAKE OF CURIOCITY.

THE PSYCOLOGY OF HACKERS

ALL INFORMATION SHOULD BE FREE.ACCESS TO COMPUTER SHOULD BE

UNLIMITED AND FREE.IT CAN CHANGE LIFE FOR BETTER.IT CAN CREATE BEAUTY ON COMPUTER.

TYPES OF HACKING

THERE ARE MANY TYPES OF HACKING LIKE• PASSWORD HACKING• SOFTWARE HACKING• NET HACKING

PASSWORD HACKING TWO TYPES1. BRUTE FORCE• IN THAT CASE HACKERS TRY OUT ALL THE

COMBINATION OF ALL KEYBOARD LETTERS .IT HAS GRATER SUCCESS BUT IT TAKES LONG TIME

2. DICTIONARY BASED• IN THAT THEY ARE USE PREDEFINE PASSWORD.IT IS

UNSUCCESSFUL METHOD

SOFTWARE HACKING

IN THAT HACKERS CHANGES THE LOOK & EXCUTION WAY OF THAT SOFTWARE

CHANG THE DEMO VERSION INTO FULL VERSION BY DECODING THE SOURCE CODE

IP ADDRESS

IP ADDRESS IS THE ADDRESS OF YOUR COMPUTER IN THE INTERNET

IT IS UNIQ

LIKE 192.168.23.45

PORT IT IS NOT PHYSICAL PORT BUT IT IS LOGICAL PORT IN YOUR

COMPUTER IT IS JUST LIKE HOLE ONTO THE SYSTEM.THROUGH HACKER

CAN ENTER THERE ARE THOUSANDS OF PORTS INTO COMPUTER THE PETICULAR SERVICE IS RUNNING ON PERTICULAR PORT LIKE PORT 21 : FTP

PORT 23 : TELNET PORT 80 : HTTP PORT 25 : MAIL

HACKING TOOLS

THERE ARE MANY TOOLS ARE AVILABLE• SCANNERS• TELNET• FTP• LAN WATCH

SCANNERS IT IS NOT A PHOTO SCANNER SCANNER IS PROGRAM THAT AUTOMATICALLY

DETECTS SECURITY WEAKNESS IN REMOTE HOST PORT SCANNERS ARE USED IN HACKING PORT SCANNER CAN GIVE THE WHOLE LIST OF OPEN

PORT ON THAT SYSTEM AND WHICH SERVICE IS RUNNING ON THAT

IT CAN USE ALMOST ALL OPERATING SYSTEM EX. SATAN,NMAP

TELNET

TELNET IS ULTIMATE HACKING TOOL IT IS TERMINAL EMULATION PROGRAM THAT

ALLOWS US TO CONNECT TO REMOTE SYSTEM YOU HAVE TO FOLLOW THIS STEP TO USE

TELNET C:\WINDOWS\TELNET [IP ADDRESS] PORT

FTP

FTP IS ONE TYPE OF PROTOCOL BUT SOME TIME IT IS USED AS HACKING TOOL

PORT 21 FOR THE FTP FOR CONNECTING FTP WE NEED SOME FTP S/W

KNOWN AS FTP CLIENT FOR CONNECTING FTP SERVER YOU HAVE TO

HAMMER THAT SERVER COMMAND: C:\WINDOWS\FTP [IP ADDRESS]:PORT