Presented by:
J.Sripranav
(20AG1A0425)
Contents
Introduction
Ethical hacking
Who are hackers
Why do hackers hack
Types of hackers
What should do after hack
Hacking process
Why do we need ethical hacking
Required skills of an ethical hacker
What do hackers do after hacking
Advantages
Disadvantages
Future enhancements
Conclusion
Introduction
Ethical hacking also known as penetration
testing or white-hat hacking,involves the same
tools, tricks, and techniques that hackers use,
but with one major difference that ethical
hacking legal.
Ethical hacking
Independent computer security professionals breaking into the
computer systems
Neither damage the target systems nor steal information
Evaluate target systems security and report back to owners about the
bugs found.
Who are hackers?
A person who enjoy learning details of a programming
language or system.
A person who enjoy actually doing the programming
rather then just theorizing about it.
A person capable of appreciating someone else’s hacking.
A person who picks up programming quickly.
A person who is an expert at a particular programming or a system.
Why do hackers hack?
Just for fun
Show off
Hack others systems secretly
Notify many people their thought
Steal important information
Destroy enemy’s computer network during the war
Ethical hackers are not criminal
hackers
Completely trustworthy
Strong programming and computer networking skills
Learn about the system and trying to fid its weaknesses
Techniques of criminal hackers-detection-prevention
Types of hackers
Black hat hacker
White hack hacker
Grey hat hacker
Black hat hacker
A black hat hackers or crackers are individuals with
extraordinary computing skills, restoring to malicious or
destructive activities.
That is black hat hackers use their own personal gains
probably by hurting others.
White hat hackers
White hat hackers are those individuals professing hackers
skills and using them for defensive purpose.
This means that the white hat hackers use their knowledge and
skill for the good of others and for the common good.
Grey hat hackers
Theseare individuals who work both offensively and
defensively at various times.
We cannot predict their behavior.
Sometimes they use their skills for the common good while in
some other times he use them for their personal gains.
What should do after hacked?
Shutdown or turn off the system
Separate the system from the network
Restore the system with the backup or reinstall all programs
Connect the system to the network
It can be good to call the police
Hacking process
Foot printing
Scanning
Gaining access
Maintaining access
Foot printing
Whois lookup
Ns lookup
Ip lookup
Scanning
Port scanning
Network scanning
Finger printing
Fire walking
Gaining Access
Password attacks
Social engineering
viruses
Maintaining Access
Os BackDoors
Trojans
Clears Tracks
Requried skills of an ethical hacker
Microsoft: skills in operation, configuration and management.
Linux: knowledge of linux/unix; security setting, configuration, and
services.
Firewalls: configurations, and operation of intrusion detection systems.
Routers: knowledge of routers, routing protocols, and access control lists
Mainframes: knowledge of mainframes
Network protocols: TCP/IP; how they function and can be manipulated.
Project management: leading,planning,organizing, and controlling a
penetration testing team.
What do hackers do after hacking?...
Patch security hole
The other hackers cant intrude
Clear logs and hide themselves
Installrootkit (backdoor)
The hacker who hacked the system can use the system later
It contains trojan virus, and so on
Install irc related program
Identd,irc,bitchhx,eggdrop,bnc
What do hackers do after hacking?
Instakk scanner program
Mscan,sscan,nmap
Install exploit program
Install denial of service program
Use all of installed programs silently
Advantages
To catch a thief you have to think like thief.
Helps in closing the open holes in the system network.
Provides security to banking and financial
establishments.
Prevents website defacements.
An evolving technique.
Disadvantages
Alldepends upon the trustworthiness of the ethical
hacker.
Hiring professionals is expensive.
Future Enhancements
Asit an evolving branch the scope of enhancement in
technology is immense.
Noethical hacker can ensure the system security by using the
same technology repeatedly.
More enhanced softwares should be used for optimum
protection.
Conclusion
Inthe preceding section we saw the methodology of hacking.
why should we aware of hacking and some tools which a
hacker may use.
Now we can see what can we do against hacking or to protect
ourselves from hacking.
The first thing we should do is keep ourselves updated about
the software’s we and using for official and reliable sources.
Educate the employees and the users against the black hat
hackers.
