Ping of Death Attack Using CMD And Notepad (Learning)

PING OF DEATH ATTACK 
A ping packet can also be malformed to perform denial of service attack
by sending continuous ping packets to the target IP address. A
continuous ping will cause buffer overflow at the target system and will
cause the target system to crash. 

We
often use the CMD command “Ping” to mostly check if a server or a
gateway is up and running. But, ping command can also be used for some
other purposes.If we look at the basic level, then a ping
packet is generally of size 56 bytes or 84 bytes (including IP header as
well). However, a ping packet can also be made as large as up to 65536
bytes.
Well,
that’s the negative side of the ping packet. When we increase the size
of the ping packet unnaturally, forming a malformed ping packet to
attack a computer system, this type of attack is called “Ping of death”
attack.

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How Ping of Death attack works?

Not all computers
can handle data larger than a fixed size. So, when a ping of death
packet is sent from a source computer to a target machine, the ping
packet gets fragmented into smaller groups of packets.
One
fragment is of 8 octets size. When these packets reach the target
computer, they arrive in fragments. So, the target computer reassembles
the malformed packets which are received in chunks. But, the whole
assembled packet causes buffer overflow at the target computer.
This buffer flow often causes the system crash making the system more vulnerable to attack.
Once
the system becomes more vulnerable to attack, it allows more attacks
like the injection of a trojan horse on the target machine.

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A simple tutorial on how to perform DoS attack using ping of death using CMD:

Disclaimer: This is just for educational purposes. It’s nothing great but you can use it to learn.
Here are the steps:

  • Open Notepad
  • Copy the following text on the notepad
:loop
ping <IP Address> -l 65500 -w 1 -n 1
goto :loop

In the above command, replace <IP Address> with an IP address.

  • Save the Notepad with any name. Let’s say dos.txt
  • Right click on the dos.txt and click on rename.
  • Change the extension from .txt to .bat
  • So, now the file name should be dos.bat
  • Double click on it and you will see a command prompt running with a lot of pings.
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Note: This command might not work on some system