Downloading vBulletin Captcha Image

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tutzor

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hxxp://www.directadmin.com/forum/register.php - if you go to this forum, enter birth date, accept terms, and get to registration page you will see a captcha image. Anyone know how to download the actual image? If I copy the URL in the properties it just gives me a blank page. I tried using some functions in PHP to convert the URL to a JPG which worked on other captcha's, but it doesn't work on this one. I get connection time out when trying to download it to my HD. If you right click on it and Save Image As...it does save the actual jpg image to your HD though, anyone know if there is anyway to automate this?
 
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tutzor said:
hxxp://www.directadmin.com/forum/register.php - if you go to this forum, enter birth date, accept terms, and get to registration page you will see a captcha image. Anyone know how to download the actual image? If I copy the URL in the properties it just gives me a blank page. I tried using some functions in PHP to convert the URL to a JPG which worked on other captcha's, but it doesn't work on this one. I get connection time out when trying to download it to my HD. If you right click on it and Save Image As...it does save the actual jpg image to your HD though, anyone know if there is anyway to automate this?
Click to expand...

If you wanted to build non php bots then Ubot software has decaptcher.com built in (lol see sig)
 
i tried in firefox v2

and it saved the capatcha img to my hd
If i access the url directly it shows a 1x1 pixel i think.
Maybe if you fake your headers, i don't know I'm defo not a programer hrhr.
 
Just noticed something else about it.

When the image location is loaded for the very first time in the browser, it shows the actual jpg captcha image. When I load the URL location for the second time however, it shows 1x1 GIF instead. And this only works in Firefox, if I load it up for the first time in IE it shows 1x1 GIF image.

So I think its some kind of security thing, I'm trying different stuff in cURL to try to emulate user agent, headers etc...

Here is what I got:

PHP: 
$header	= array( 
	"Accept-Language: en-gb,en;q=0.5",
	"Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7",
	"Keep-Alive: 300",
	"Content-Type: image/jpg",
);


$curloptions = array(
		CURLOPT_HTTPHEADER	=> $header,
        CURLOPT_USERAGENT => 'User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.1.5) Gecko/20091102 Firefox/3.5.5',
        CURLOPT_COOKIEJAR => $cookie,
        CURLOPT_COOKIEFILE => $cookie,
		CURLOPT_SSL_VERIFYHOST	=> false,
		CURLOPT_SSL_VERIFYPEER	=> false,
		CURLOPT_TIMEOUT		=> 15,
        CURLOPT_REFERER => 'http://www.deleteddomains.com/domains-forum/'
);

Can someone suggest something else I can add to "emulate first natural request"?

By the way, I'm using imagecreatefromstring to convert it to image. It saves the 1x1 GIF image instead of the actual JPG captcha, when I load the script with a newly refreshed image for the first time.
 
Last edited:
tutzor said:
if you go to this forum, enter birth date, accept terms, and get to registration page you will see a captcha image. Anyone know how to download the actual image? If I copy the URL in the properties it just gives me a blank page. I tried using some functions in PHP to convert the URL to a JPG which worked on other captcha's, but it doesn't work on this one. I get connection time out when trying to download it to my HD. If you right click on it and Save Image As...it does save the actual jpg image to your HD though, anyone know if there is anyway to automate this?
Click to expand...


Have you figured this out? I can get passed all other captcha's but this kind. It's driving me crazy. I program in .NET. Any ideas? Anyone?
 
honestly, i can't see the captcha at all. i even registered with no captcha

It just gave me a random question
 
That is strange... if you r able to right click n download... u shd technically be able to download it using any method... no?
 
well.. i still can't see it, but if its there, then why don't you right click, and view image, or set up a page with that php file only and reload
 
Alternatives to this type of issue is to try moving the image to the top of the page and grab its position for a screen cap.

However I don't find to many captchas that reset or change when you just grab the url and download it.
 
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