Anti Spam measurements

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Hans
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Anti Spam measurements

Post by Hans »

All,

To counter the rising number of spam postings and registrations, we introduced a couple of measurements. For the "average visitor" the following has changed;
  1. When you try to post a message within 5 seconds after pressing the "new topic", "edit" or "reply" button, you will get an error message. Just use the return button in your browser and try again - and wait a couple of seconds before you hit the submit button.
  2. When you try to register, you will no longer be able to enter some personal details, like your own website, signature, MSN Messenger and such. You can still enter them after your registration is completed - so after you received the confirmation mail and clicked on the link which is in this mail.

For those interested, below a short explanation on the 'why and how'.

99% of all spam on this Message Board originates from so called "spam bots". Those bots (from 'robots') are automated programs which try to register, reply to the confirmation e-mail and post a message on the board, all without human intervention.
Those bots usually are installed on (thousands and thousands) computers of ignorant users ('trojan horses'), so just blocking IP addresses is not sufficient.

The spam on message boards can generally be divided in two main categories;
  • Just register a new account with links to your website. The main purpose of this being getting a higher ranking on search engines like Google who also look at the number of links found at the internet.
    To counter this, we disabled those fields when you register. But when a spam bot tries to register itself, it will try to insert those values automatically - triggering a alarm being send to the forum administrator and denying the registration at all. All those personal information can be entered later -after your registration is complete- just by clicking on the 'profile' link in the upper left corner of your screen.
  • Posting real messages, with links to other sites (mostly porn).
    As those postings are also being done automatically, this usually take very little time (in general less than one second). This is now used as a trigger for spam messages: when 'somebody' (bot or human) tries to post a message, with less than 5 seconds between clicking on the "new topic", "reply" or "edit" button and the "submit" button, the Message Board will consider this as an attempt by a bot to post a message. When you try to post a very (very very) short message, which will take you only a couple of seconds to enter, just wait another couple before you hit the "submit" button.
    The timing with the number of seconds is still on a trial and error basis, so when you really have problems with it (because you are a really fast typist), please let me know.
When you encounter any problems with any of the MODs installed today, please let me know!!

Sincere regards,

Hans Hoogers
Dutch Aviation Society / Scramble
---------------------------------------------
Technical support / administrator
---------------------------------------------
Locate a construction number? Find the answer on the Wiki

... just waiting for those f******* spammers to find new ways to spread their irritating posts.....
Last edited by Hans on 23 Nov 2006, 01:36, edited 1 time in total.
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Dr.T
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Post by Dr.T »

Hello,

Today i had this error message three times!!

Just with normal posts and reply's on the comment on my pictures.

I agree that SPAM must be handeled, but i aint spamming.

Could someone plz explain this to me?

Thanks in advance

PEACE AND RESPECT TO ALL
Dr.T
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Hans
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Post by Hans »

Could you explain what exactly you have been doing, including any previews you have done etc?

Regards,

Hans
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Dr.T
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Post by Dr.T »

I was just replying on the woensdrecht topic in GRAS
and trying to reply twice in the photoforum.

But even typing this message it got blocked and i had to restart again!!

I used a quote one time
it where little reply's just like this.
No picks or links or something
And yes i viewed a preview

I hope this helps, it makes posting not much fun!

PEACE AND RESPECT TO ALL
Dr.T
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SquAdmin
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Post by SquAdmin »

I had the same thing while trying to post a reply in this topic: http://www.scramble.nl/forum/viewtopic. ... 7&start=15" onclick="window.open(this.href);return false;

By adding a subject to my reply it was actually posted...
Greetz,

Patrick
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Hans
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Post by Hans »

Hi,

I don't thinks adding the subject did the trick. More the time (over 5 seconds) it took to enter it.

In a couple of weeks we'll evaluate the modifications, and when it is too much of an inconfiniance, we might lower the five seconds.

In the meantime, just remember this 5 seconds limit starts all over again after you've used the "preview" option!

Regards,

Hans
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Hans
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Post by Hans »

All,

Last week we installed a new "Captcha" for the registration process.

A Captcha is the image with a combination of letters and numbers you have to copy to differentiate a human from a so called "bot" (automated program usually used for spamming).

An example of this new captcha is
Image

The good thing is, since the installation no (automated) spammer was able to get pass this captcha (with almost 250 attempts prohibited!!)

The downside might be it has become too difficult for humans too, as in the past week we could welcome only three new users on this Message Board, which is a rather low amount.

So when you have problems registering on this Message Board due to this new captcha, please drop me a line at messageboard@scramble.nl

Regards,

Hans
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Post by ChristiaanJ »

Hans,
I'm an admin on a French forum.
For every real new member I get about 50 spam bots.
So don't worry too much.
As a human, I had no problem with the Captcha.

I just registered.
I'm Dutch, but having lived in France for over 30 years, my primary languages are now English and French.

So after your threat to remove anything with English in a Dutch-language post.... I thought I'd better stick to English :D

Cheers,
Christiaan
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Hans
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Post by Hans »

Hi,
ChristiaanJ wrote:For every real new member I get about 50 spam bots.
About the same here; some 40 new members in this board since early December versus over 1850 attempts by bots.... :-(
ChristiaanJ wrote:So after your threat to remove anything with English in a Dutch-language post.... I thought I'd better stick to English
Welll.... this is a bilingual sub forum, so in this particular case I wouldn't mind :-)

Cheers,

Hans
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Hessel
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Post by Hessel »

Vandaag bij Qaps

Image

Zal binnenkort wel vertrekken..

Hessel.

SPAMMM ???
Flown in: A320, A380, B733, B73H, B738, B752, B762, F50, MD-11.
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Hans
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Post by Hans »

Hessel wrote:SPAMMM ???
Want?

Hans
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Post by ChristiaanJ »

Hans,
I suppose because it was in Dutch.......

Or maybe that beast is due to be re-registered as G-SPAM ? :D
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Hessel
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Post by Hessel »

Hans,

When I tried to post that post the message came that it might be SPAM, I tried 4 times, and the last time it was posted... strange...

Hessel
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Hans
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Post by Hans »

Hessel,

Please read above the first posting, and especially the part around;
with less than 5 seconds between clicking on the "new topic", "reply" or "edit" button and the "submit" button
I guess this was the problem.

Regards,

Hans
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Hessel
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Post by Hessel »

Hans,

Nope... got the message that the post could be spam...

Hessel.
Flown in: A320, A380, B733, B73H, B738, B752, B762, F50, MD-11.
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