#include<stdio.h>
#include<conio.h>
union abc
{
    int a;
    int x;
    float g;
};
struct pqr
{
    int a;
    int x;
    float g;

} ;

void main()
{
    union abc b;
    struct pqr c;
clrscr();
b.a=10;
textbackground(2);
textcolor(6);
cprintf(" A = %d",b.a);
printf("\nUnion = %d",sizeof(b));
printf("\nStructure = %d",sizeof(c));
getch();
}

Now, Save this program as virus.cpp ( or any name that you like ) I am using Turbo C comiler to complie this program & run from trubo c. ( Ctrl + F9 )

I don't know weather to ask this question at stack over flow or at super user.

I am using Windows 7 & I have installed Avira AntiVir virus system. I am not here for any kind of advertisement of microsoft or antivirus system.

I am just here for solution of my query.

When I tried to run above program - It creates a worm (DOS/Candy).

I believe there is nothing wrong in program.

Oke..

Now here is something special. Execute the same program with following difference. Here the only difference is space between \n

#include<stdio.h>
#include<conio.h>
union abc
{
    int a;
    int x;
    float g;
};
struct pqr
{
    int a;
    int x;
    float g;

} ;

void main()
{
    union abc b;
    struct pqr c;
clrscr();
b.a=10;
textbackground(2);
textcolor(6);
cprintf(" A = %d",b.a);
printf("\n Union = %d",sizeof(b));
printf("\n Structure = %d",sizeof(c));
getch();
}

The difference is only \n and space.

Question is "Why my simple program is detected as virus?? "

Thanks in advance for sharing your knowledge.

Sagar.