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Enhanced Captcha Image Verification - stop bots from signing up!! Details »» | |||||||||||||||||||||||||||||||||
Enhanced Captcha Image Verification - stop bots from signing up!!
Developer Last Online: Dec 2014
Title : Enhanced Captcha Image Verification
Version : 1.1 Coder : Andy Calderbank & Jason Williams Purpose : Add extra Image Verification to the registration process, using an alternative system to the Captcha system. Why : It would appear that spammers can now "read" the Captcha codes and overcome the verification process. How : This extra feature uses images which are harder for a spam program/bot to interpret than text characters. The user has a choice of 4 randomly displayed images, and the answer is given below. The user must click on that image to proceed, if the incorrect image is selected an error message is shown. The images are randomly shown (from however many are in the directory - you can have as many as you want, just has to be more that 4!) and are automatically created from the images/verification/ directory - all on the fly. Sample images are included with this release, but you can use your own - I recommend using 100 x 100 pixels, in .jpg format and naming the image with a meaningful title (ie A House.jpg) - the extension is stripped so only the filename itself is shown. To further enhance security, the images are passed through a script which means that none of the images on the screen have file names - and cannot be associated to the question by title alone. I have been testing this on my forum and have found it to be effective - I cannot guarantee that this will stop all spamming, but this relies more on human input than a computer "reading" the image. Important : This has been tested on 3.6.2 - I cannot guarantee it will work on anything above, please test with caution - and as always BACKUP FIRST! This will not work on anything below 3.6.0. Demo : http://www.steadiforum.com/register.php I hope this is help to the VBulletin community as I know this is a growing problem. I don't fancy the thought of trawling through hundreds of new members deleting stupid usernames and spam posts. Installation :
Upgrading :
Requirements : GD Libraries installed File uploads : 39 (including images) Files to Import : 1 New Templates : 1 New Phrases : 5 Uses Hooks : 1 New Queries : 0 History : v1.0 - Original release v1.01 - Slight code change for forums in sub-directories (thanks go to Barakat for solving this one) v1.1 - Issue resolved with Windows servers also template clean up for xhtml compliance v1.11 - Added version check function, minor upgrade. Done - if you like please click install! (and I won't ask for any donations as long as you click Nominate for MOTM!) Don't forget you don't have to use the provided images - you can customise these to any you wish - I've used ones that are hopefully universal and everyone will recognise. Download Now
Screenshots
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Comments |
#292
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Are you suggesting that we use just this mod to deter bots signing up?
Or is it to be used in conjunction with Captcha? I ask because I enabled this mod and disabled Captcha. I got a load of dubious usernames signing up Thanks VJ |
#293
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I really hope this will help reduce the amount of useless sign ups. Thanks!
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#294
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It isn't being useful to the work
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#295
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Literally, from the second I installed this, bots started signing up. I tested it myself to make sure the plugin was installed correctly. Any suggestions?
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#296
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Coincidence?
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#297
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Installed and working well, Thanks
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#298
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VERY VERY NICE! Thank You!
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#299
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Used in conjunction with reCAPTCHA, this has made a huge difference to duff sign ups.
Many thanks |
#300
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Many of the registration comes from email = blogxxpagesxxonline (remove xx) so I can't tell if it's actually preventing them from signing up. I know the plugin is installed correctly as I tried to register and guess incorrect and correct image.
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#301
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i'ma going to give this a try, my forums keep getting spammed by waold or warcraft advertising bots for WOW gold, yet my site is about Flyff oddly enough...so this will be a life saver if it works.
thank you very much for sharing. |
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