Be a professional hacker

[shan5dx]

Password Hacking

5) Phishing :- This is the most effective and easily executable password cracking technique which is generally used to crack the passwords of e-mail accounts, and all those accounts where secret information or sensitive personal information is stored by user such as social networking websites, matrimonial websites, etc.
Phishing is a technique in which the attacker creates the fake login screen and send it to the victim, hoping that the victim gets fooled into entering the account username and password. As soon as victim click on "enter" or "login" login button this information reaches to the attacker using scripts or online form processors while the user(victim) is redirected to home page of e-mail service provider.

Never give reply to the messages which are demanding for your username-password, urging to be e-mail service provider.


It is possible to try to obtain the passwords through other different methods, such as social engineering, wiretapping, keystroke logging, login spoofing, dumpster diving, phishing, shoulder surfing, timing attack, acoustic cryptanalysis, using a Trojan Horse or virus, identity management system attacks (such as abuse of Self-service password reset) and compromising host security.
However, cracking usually designates a guessing attack.

 

[Tharaka1220]

ela

 

[Tharaka1220]

niyami

 

[ΛЅΛ™]

thanx bro

 

[ΛЅΛ™]

very good

 

[shan5dx]

Thank you all for encouraging me

 

[zanharjabir]

machan thva nada..
oya dana tika ney..
kamak nahaa.. ela ela.. thx any way

 

[shan5dx]

Denial Of Service (DoS) Attacks

A denial of service (DoS) attack is an attack that clogs up so much memory on the target system that it can not serve it's users, or it causes the target system to crash, reboot, or otherwise deny services to legitimate users.There are several different kinds of dos attacks as discussed below:-

1) Ping Of Death :- The ping of death attack sends oversized ICMP datagrams (encapsulated in IP packets) to the victim.The Ping command makes use of the ICMP echo request and echo reply messages and it's commonly used to determine whether the remote host is alive. In a ping of death attack, however, ping causes the remote system to hang, reboot or crash. To do so the attacker uses, the ping command in conjuction with -l argument (used to specify the size of the packet sent) to ping the target system that exceeds the maximum bytes allowed by TCP/IP (65,536).
example:- c:/>ping -l 65540 hostname
Fortunately, nearly all operating systems these days are not vulnerable to the ping of death attack.

 

[shan5dx]

Denial Of Service (DoS) Attacks

2) Teardrop Attack :- Whenever data is sent over the internet, it is broken into fragments at the source system and reassembled at the destination system. For example you need to send 3,000 bytes of data from one system to another. Rather than sending the entire chunk in asingle packet, the data is broken down into smaller packets as given below:

* packet 1 will carry bytes 1-1000.
* packet 2 will carry bytes 1001-2000.
* packet 3 will carry bytes 2001-3000.

In teardrop attack, however, the data packets sent to the target computer contains bytes that overlaps with each other.
(bytes 1-1500) (bytes 1001-2000) (bytes 1500-2500)
When the target system receives such a series of packets, it can not reassemble the data and therefore will crash, hang, or reboot.
Old Linux systems, Windows NT/95 are vulnerable.

 

[shan5dx]

Thankz

machan thva nada..
oya dana tika ney..
kamak nahaa.. ela ela.. thx any way

don't be hurry
wait n c

Thankz bro

 

[shan5dx]

Denial Of Service (DoS) Attacks

3) SYN - Flood Attack :- In SYN flooding attack, several SYN packets are sent to the target host, all with an invalid source IP address. When the target system receives these SYN packets, it tries to respond to each one with a SYN/ACK packet but as all the source IP addresses are invalid the target system goes into wait state for ACK message to receive from source. Eventually, due to large number of connection requests, the target systems' memory is consumed. In order to actually affect the target system, a large number of SYN packets with invalid IP addresses must be sent.


4) Land Attack :- A land attack is similar to SYN attack, the only difference being that instead of including an invalid IP address, the SYN packet include the IP address of the target sysetm itself. As a result an infinite loop is created within the target system, which ultimately hangs and crashes.Windows NT before Service Pack 4 are vulnerable to this attack.

 

[Zeus]

What a great thread machan
Keep up with your work pal

 

[shan5dx]

Thankz

What a great thread machan
Keep up with your work pal

Thankz mchn

 

[shan5dx]

Denial Of Service (DoS) Attacks

5) Smurf Attack :- There are 3 players in the smurf attack–the attacker,the intermediary (which can also be a victim) and the victim. In most scenarios the attacker spoofs the IP source address as the IP of the intended victim to the intermediary network broadcast address. Every host on the intermediary network replies, flooding the victim and the intermediary network with network traffic.

Result:- Performance may be degraded such that the victim, the victim and intermediary networks become congested and unusable, i.e. clogging the network and preventing legitimate users from obtaining network services.

 

[shan5dx]

Denial Of Service (DoS) Attacks

6) UDP - Flood Attack :- Two UDP services: echo (which echos back any character received) and chargen (which generates character) were used in the past for network testing and are enabled by default on most systems. These services can be used to launch a DOS by connecting the chargen to echo ports on the same or another machine and generating large amounts of network traffic.

7) Distributed Denial Of Service (DDoS) :- In Distributed DoS attack, there are 100 or more different attackers (systems) attacking the single system. Due to higher number of attackers DDoS attack is more effective and dangerous than regular DoS attack. The attackers have control over master zombies, which, in turn, have control over slave zombies, as shown in figure.

No system connected to the internet is safe from DDoS attacks. All platforms, including Unix and Windows NT, are vulnerable to such attacks. Even Mac OS machines have been used to conduct DDoS attacks.

The most popular DDoS tools are:-

a) Trin00 (WinTrinoo)
b) Tribe Flood Network (TFN) (TFN2k)
c) Shaft
d) Stacheldraht
e) MStream

 

[janak456]

anemanda ban mata nam melo deyak therenne naha

 

[shan5dx]

Denial Of Service (DoS) Attacks

8) Distributed Denial Of Service with Reflectors (DRDoS) :- In DRDoS attacks the army of the attacker consists of master zombies, slave zombies, and reflectors. The difference in this type of attack is that slave zombies are led by master zombies to send a stream of packets with the victim's IP address as the source IP address to other uninfected machines (known as reflectors), exhorting these machines to connect with the victim. Then the reflectors send the victim a greater volume of traffic, as a reply to its exhortation for the opening of a new connection, because they believe that the victim was the host that asked for it. Therefore, in DRDoS attacks, the attack is mounted by noncompromised machines, which mount the attack without being aware of the action.

a DRDoS attack creates a greater volume of traffic because of its more distributed nature, as shown in the figure below.

 

[lolipro]

Ela machang ela kiri

ela wadak im also interested in hacking. because even as they says bill gates bought dos from a white hacker in Seatel >>>>>>

 

[Ethical_World]

6) UDP - Flood Attack :- Two UDP services: echo (which echos back any character received) and chargen (which generates character) were used in the past for network testing and are enabled by default on most systems. These services can be used to launch a DOS by connecting the chargen to echo ports on the same or another machine and generating large amounts of network traffic.

7) Distributed Denial Of Service (DDoS) :- In Distributed DoS attack, there are 100 or more different attackers (systems) attacking the single system. Due to higher number of attackers DDoS attack is more effective and dangerous than regular DoS attack. The attackers have control over master zombies, which, in turn, have control over slave zombies, as shown in figure.

No system connected to the internet is safe from DDoS attacks. All platforms, including Unix and Windows NT, are vulnerable to such attacks. Even Mac OS machines have been used to conduct DDoS attacks.

The most popular DDoS tools are:-

a) Trin00 (WinTrinoo)
b) Tribe Flood Network (TFN) (TFN2k)
c) Shaft
d) Stacheldraht
e) MStream

There is no tools for DDos !! only for dos !!

Well there is a one !! but it work as a client !! not as tool

 

[rayan f16]

thank u very much bro.......!!!!!!
It is very rare to find a person as u bcoz of 2 reasons.
1.) The person who knows about those things never say to any one....
2.) Who tell that he know about such kind of things don't know nothing.....
bro, I said that "It is very rare to find " bcoz of above......

u a great....!!!
Thanks again and again for sharing with us what u know.....