Denial of service attacks example – The ping of Death

Denial of service attacks example, this attack is used to make a machine or network temporarily unavailable to its intended users. In technical terms, DoS is simply sending large packets of data or null packets to the server/network within a short interval of time (sec). For example, if you keep sending 1gb of data per sec. (for a some amount of time like 30 mins.) over the network. It will cause the network to overload because of the packets it is receiving in a very small time. This will end up making the website or network to be suspended.

However, you cannot DOS a website with a single computer. Only very small websites may be vulnerable to this. But for taking down a good website requires very large number of computers attacking the website at the same time (DDos).

Denial of service attacks example

These type of attacks are very serious and can cause a huge damage to the website or the network. Imagine if a DOS attack is performed on a bank’s website, this could lead to temporarily suspension of the website. The bank services would remain completely unavailable for its users and thus causing a huge amount of loss to the bank. Such type of incidents took place a number of times which caused huge monetary loss the companies.

• A group calling itself New World Hacking said that the attack reached 602Gbps. New World Hacking also said that the attack, which came on New Year’s Eve, was “only a test.”

– Source: CSO Online

In this tutorial of Denial of service attacks example I am showing you an old yet famous method of DOSing a website, which is also known as “ping of death”. This method floods the OS with overlapping TCP/IP fragments and ultimately causing the OS to crash and resource starvation. This may take down the server for a specific amount of time. Untill this all the services from this server may remain unavailable. For doing this we will use a very simple yet powerful networking utility tool called “ping”. You just need a cmd for this attack.

If you want to know more about the ping utility, you can read my article on Ping utility. It will give you a clear idea of the usefulness of this utility.

• Test Ping – Great tool to collect information

Denial of service attacks example: Tutorial

First, open command prompt.
Now, you need to know the IP address of our target website in order to perform our denial of service attacks example. This can be done by typing

ping www.ourtargetwebiste.com

This will give us the target website’s IP address.

Now, for performing Denial of service attacks example on target, type below command.

ping –l  500  ip-addr-of-target-site

Here in place of ip-addr-of-target-site put the target website’s IP address and 510 is the buffer size i.e packet size. You can vary the size between 0 – 65500. But all the servers may not respong to your packet size. Now leave the system for some time to complete the attack.

You can also do this by typing,

ping –t 0.01 –l ip-addr-of-target-site

-t is the time (sec.) used to repeat the ping recursively and –l is the packet size. So, Vary these digits in order to make your attack more efficient according to the website. The more the –l and less the –t, the higher will be the attack intensity.
Like I said earlier, this attack cannot be used to turn down a good website. You will need many computer bots to attack such websites. Also you need high speen internet connection to perform this attack.
There are other tools for DOS attack namely HOIC, LOIC, Slowloris and use of some special Trojans.

At this point, I just want to publish that this is for education purpose only. DOS attack on a website can make you spend more than 10 years in prison and can cost you a huge amount of money, probably in millions.

If you need any help or you have any suggestion, feel free to contact us.

Hacking is not a crime, its an art. Use it for good. Happy Hacking….!!!