C Program To Accept Password

This is a simple login program in C.While accepting password it masks each character using ‘*’ symbaol and display the password in the next line after the user hits Enter key.It also accepts backspaces and acts accordingly.




#include
#include

char pw[25],ch;
int i;
void main()
{
clrscr();
puts(”Enter password”);
while(1)
{
if(i<0)
i=0;
ch=getch();
if(ch==13)
break; /*13 is ASCII value of ENTER*/
if(ch==8) /*ASCII value of BACKSPACE*/
{
putch(’\b’);
putch(NULL);
putch(’\b’);
–i;
continue;
}
pw[i++]=ch;
ch=’*';
putch(ch);
}
pw[i]=’\0′;
printf(”\n\n%s”,pw);
getch();
}

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Netbios Hacking

THIS NETBIOS HACKING GUIDE WILL TELL YOU ABOUT HACKING REMOTE COMPUTER AND GAINING ACCESS TO IT’S HARD-DISK OR PRINTER.NETBIOS HACK IS THE EASIEST WAY TO BREAK INTO A REMOTE COMPUTER.

STEP-BY-STEP NETBIOS HACKING PROCEDURE

1.Open command prompt

2. In the command prompt use the “net view” command

( OR YOU CAN ALSO USE “NB Scanner” OPTION IN “IP-TOOLS” SOFTWARE BY ENTERING RANGE OF IP ADDRESSS.BY THIS METHOD YOU CAN SCAN NUMBER OF COMPUTERS AT A TIME).

Example: C:\>net view \\219.64.55.112

The above is an example for operation using command prompt.”net view” is one of the netbios command to view the shared resources of the remote computer.Here “219.64.55.112″ is an IP address of remote computer that is to be hacked through Netbios.You have to substitute a vlaid IP address in it’s place.If succeeded a list of HARD-DISK DRIVES & PRINTERS are shown.If not an error message is displayed. So repeat the procedure 2 with a different IP address.

3. After succeeding, use the “net use” command in the command prompt.The “net use” is another netbios command which makes it possible to hack remote drives or printers.

Example-1:

C:\>net use D: \\219.64.55.112\F

Example-2:

C:\>net use G: \\219.64.55.112\SharedDocs

Example-3:

C:\>net use I: \\219.64.55.112\Myprint



NOTE: In Examples 1,2 & 3, D:,G: & I: are the Network Drive Names that are to be created on your computer to access remote computer’s hard-disk.

NOTE: GIVE DRIVE NAMES THAT ARE NOT USED BY ANY OTHER DRIVES INCLUDING HARD-DISK DRIVES,FLOPPY DRIVES AND ROM-DRIVES ON YOUR COMPUTER.THAT IS IF YOU HAVE C: & D: AS HARD DIRVES, A: AS FLOPPY DIVE AND E: AS CD-DRIVE, GIVE F: AS YOUR SHARED DRIVE IN THE COMMAND PROMPT

F:,”SharedDocs” are the names of remote computer’s hard-disk’s drives that you want to hack. “Myprint” is the name of remote computer’s printer.These are displayed after giving “net use” command. “219.64.55.112″ is the IP address of remote computer that you want to hack.

4. After succeeding your computer will give a message that “The command completed successfully“. Once you get the above message you are only one step away from hacking the computer.

Now open “My Computer” you will see a new “Hard-Disk drive”(Shared) with the specified name.You can open it and access remote computer’s Hard-Drive.You can copy files,music,folders etc. from victim’s hard-drive.You can delete/modify data on victim’s hard-drive only if WRITE-ACCESS is enabled on victim’s system.You can access files\folders quickly through “Command Prompt”.

NOTE: If Remote Computer’s Firewall Is Enabled Your Computer Will Not Succeed In Gaining Access To Remote Computer Through Netbios.That is Netbios Hacking Is Not Possible In This Situation.(An Error Message Is Displayed).So Repeat The Procedure 2,3 With Different IP Address.

HAPPY NETBOS HACKING!!

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What are IP Addresses

An IP address (Internet Protocol address) is a unique address that certain electronic devices currently use in order to identify and communicate with each other on a computer network utilizing the Internet Protocol standard (IP)—in simpler terms, a computer address. Any participating network device—including routers, switches, computers, infrastructure servers (e.g., NTP, DNS, DHCP, SNMP, etc.), printers, Internet fax machines, and some telephones—can have its own address that is unique within the scope of the specific network. Some IP addresses are intended to be unique within the scope of the global Internet, while others need to be unique only within the scope of an enterprise.

The IP address acts as a locator for one IP device to find another and interact with it. It is not intended, however, to act as an identifier that always uniquely identifies a particular device. In current practice, an IP address is less likely to be an identifier, due to technologies such as Dynamic assignment and Network address translation.

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Web Proxies

 

In computer networks, a proxy server is a server (a computer system or an application program) which services the requests of its clients by forwarding requests to other servers. A client connects to the proxy server, requesting some service, such as a file, connection, web page, or other resource, available from a different server. The proxy server provides the resource by connecting to the specified server and requesting the service on behalf of the client. A proxy server may optionally alter the client’s request or the server’s response, and sometimes it may serve the request without contacting the specified server. In this case, it would ‘cache’ the first request to the remote server, so it could save the information for later, and make everything as fast as possible.

A proxy server that passes all requests and replies unmodified is usually called a gateway or sometimes tunneling proxy.

A proxy server can be placed in the user’s local computer or at specific key points between the user and the destination servers or the Internet.

Caching proxy server

A proxy server can service requests without contacting the specified server, by retrieving content saved from a previous request, made by the same client or even other clients. This is called caching. Caching proxies keep local copies of frequently requested resources, allowing large organizations and Internet Service Providers to significantly reduce their upstream bandwidth usage and cost, while significantly increasing performance. There are well-defined rules for caching. Some poorly-implemented caching proxies have had downsides (e.g., an inability to use user authentication). Some problems are described in RFC 3143 (Known HTTP Proxy/Caching Problems).



Web proxy

Proxies that focus on WWW traffic are called web proxies. Many web proxies attempt to block offensive web content. Other web proxies reformat web pages for a specific purpose or audience (e.g., cell phones and PDAs)

Access control: Some proxy servers implement a logon requirement. In large organizations, authorized users must log on to gain access to the ‘WWW.’ . The organization can thereby track usage to individuals.



Anonymizing proxy server

A proxy server that removes identifying information from the client’s requests for the purpose of anonymity is called an anonymizing proxy server or anonymizer.

Transparent and non-transparent proxy server

The term “transparent proxy” is most often used incorrectly to mean “intercepting proxy” (because the client does not need to configure a proxy and cannot directly detect that its requests are being proxied).

However, RFC 2616 (Hypertext Transfer Protocol — HTTP/1.1) offers different definitions:

“A ‘transparent proxy’ is a proxy that does not modify the request or response beyond what is required for proxy authentication and identification.

“A ‘non-transparent proxy’ is a proxy that modifies the request or response in order to provide some added service to the user agent, such as group annotation services, media type transformation, protocol reduction, or anonymity filtering.”

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Renaming Win XP Start Menu Button

This guide will show you how to edit/rename the Windows XP start menu button.Are you bored of having the name “start”? If so now you can rename your start menu button to give the name of your choice.



STEP 1:BYPASSING WINDOWS FILE PROTECTION



1.Launch My Computer,click tools,folder options,then view

2.Select show all hidden files and folders option and uncheck the option hide

protected operating system files,unckeck hide extention for known file types

3.Open C:\windows\system32\restore,select the file filelist.xml,right click it go to properties and uncheck read-only

4.Open it(filelist.xml) with notepad

5.Add the line <rec>%systemroot%\explorer.exe</rec> as shown below

<exclude>

<rec>%systemroot%\explorer.exe</rec>

<rec> %windir%\system.ini</rec>

<rec> %windir%\tasks\desktop.ini</rec>

<rec> %windir%\win.ini</rec>

<rec> *:\AUTOEXEC.BAT </rec>

<rec>*:\CONFIG.MSI</rec>

<rec> *:\CONFIG.SYS </rec>

6.Save the file

7.Open C:\windows\system32\dllcache,you will find a backup copy of explorer.exe. Rename it to explorer.bak.

STEP 2:CHANGING THE NAME OF START BUTTON



1.Open Resource Hacker,open C:\windows\explorer.exe

2.Expand string,expand 37,click on 1033

3.On right side raname “start” to anything you want EG.”anything” and press compile script

4.Repeat the same procedure for string,38,1033

5.Save changes in file menu(if error occurs close explorer.exe and repeat sub-step 3 & 4

6.Press ctrl+alt+del in processes tab of task manager endtask explorer.exe

7.Again in new task open C:\windows\explorer.exe you will see that start menu is renamed

8.Close task manager and ENJOY!!!!

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Program to Print it’s Own Source Code

Here is a C program to print it’s own source code.That is the output of this program is exactly same as it’s source code.Here’s the program

#include
char *program=”#include%cchar *
program=%c%s%c;%cvoid main()%c{%cprintf
(program,10,34,program,34,10, 10,10,10);%c}”;
void main()
{
printf(program,10,34,program,34,10,10,10,10);
}

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C Program to Remove Comments and Blank lines from a valid C Program

This program accepts any valid C Program as an input and removes the comments and blanks from it.The output is a program that has no comments and blank lines.

#include
#include
#include
#include
void main()
{
FILE *a,*b;
char fname[20],ch,tch=NULL,tch1=NULL;
int flag1=0,flag=0,count=0,count1=0,count2=0;
clrscr();
printf(”Enter the file name (.C or .TXT)\n”);
gets(fname);
a=fopen(fname,”r”);
if(a==NULL)
{
puts(”Cannot open the source file!!!”);
delay(500);
exit(1);
}
b=fopen(”target.c”,”w”);
if(b==NULL)
{
puts(”Cannot create target file!!!”);
delay(500);
exit(1);
}
while(1)
{
ch=fgetc(a);
if(ch==EOF) break;
else
{
if(ch==’\n’)
{
count1=1;
tch1=ch;
continue;
}
else if(ch==’\n’&& count1==1)
continue;
else if(ch==’/'&&count==0)
{
flag1=1;
tch=ch;
count=1;
continue;
}
else if(ch==’*'&& flag1==1)
{
flag=1;
flag1=0;
tch=NULL;
}
else if(ch==’*'&&flag==1)
{
count2=1;
count=1;
continue;
}
else if(ch==’/'&&count2==1)
{
flag=0;
count=0;
tch=NULL;
continue;
}
else if(count==1&&flag==1)
count=0;
else if(flag1==1)
flag1=0;
}
if(flag!=1)
{
if(tch>0)
fputc(tch,b);
if(tch1>0)
fputc(tch1,b);
tch1=NULL;
tch=NULL;
count=0,count1=0,count2=0;
fputc(ch,b);
flag1=0,flag=0;
}
}
puts(”DONE!! OP FILE IS \”TARGET.C\”\n”);
fcloseall();
getch();
}

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