[Discuss] Preventing Spam in phpBB3

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TheSnake
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Re: [Discuss] Preventing Spam in phpBB3

Post by TheSnake »

Martin Truckenbrodt wrote:Hello,
BTW: Some spammers are selecting UTC+12 automatically. New Zealand and other islands and countries are using UTC+12. Do you want to disallow UTC+12, too?
So what's better? Make legimate timezones bad timezones or to add two special spammer timezones only for user registration?
For me it doesn't matter if people at the moment are living on Baker Island and Howlandisland, or not. UTC-12 is a legitimate value. That's fact.
Bye Martin
From my understanding of the code for blocking the UTC -12 Timezone, ONLY the UTC -12 (UTC minus 12 hours) region which is being blocked, NOT the UTC +12. New Zealand uses UTC +11 timezone, there are a couple of small islands which use the +12 (Gilbert Island, Marshall Island, Kwajalein Island, Nauru, Tuvalu), but they are not affected by the UTC-12. The only way I can see that would be a problem is if someone adapted the code used on their board, to block both UTC-12 & UTC+12 Hour timezones.

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Re: [Discuss] Preventing Spam in phpBB3

Post by Martin Truckenbrodt »

Hello TheSnake,
e.g. you can block UTC+19 and UTC-19 insteat. You can do it only for new registations and not for registered users changing their user settings. There is a MOD doing it this way since about two years.
New Zealand = UTC+12: http://upload.wikimedia.org/wikipedia/c ... _world.png
Now it's enough of off-topic.
Bye Martin
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Re: [Discuss] Preventing Spam in phpBB3

Post by CheesePlant »

Yesterday my forum was targeted by spam, around 54k posts were added, each user has posted around 500-600 posts.

I've changed my captcha question and temporarily disabled new registrations (as they are still registering and posting right now).

A typical forum user has around 50 posts, no one has over 100 yet.

Is there a way to ban the IP and delete all users with posts if their post count is over say, 150?

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Re: [Discuss] Preventing Spam in phpBB3

Post by bonelifer »

CheesePlant wrote:Yesterday my forum was targeted by spam, around 54k posts were added, each user has posted around 500-600 posts.

I've changed my captcha question and temporarily disabled new registrations (as they are still registering and posting right now).

A typical forum user has around 50 posts, no one has over 100 yet.

Is there a way to ban the IP and delete all users with posts if their post count is over say, 150?
You could try "OCB" -->> http://www.phpbb.com/customise/db/mod/one_click_ban/
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Re: [Discuss] Preventing Spam in phpBB3

Post by CheesePlant »

Thanks for the suggestion bonelifer, I've added it to my site and deleted all the spammers.

What a nightmare that was.

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Re: [Discuss] Preventing Spam in phpBB3

Post by buksida »

buksida wrote:Thanks again, yes I've change the Q&A now so we'll see if that stops them.
They've now broken the latest Q&A which was "enter the first 5 digits of some random letters" and are flooding in again.

Any other suggestions or Q&A ideas to stop them?

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Re: [Discuss] Preventing Spam in phpBB3

Post by Oyabun1 »

Never heard of that before and since using the Q&A have had zero spambots join, but if that is the case on your board then look at the other options offered in the article, such as:
Phil wrote:Downloadable CAPTCHA Plugins
The key to effective spam prevention is making your forum unique. An effective way to do this is to utilize a third-party CAPTCHA plugin, made possible by phpBB 3.0.6's CAPTCHA architecture change. A list of validated CAPTCHA plugins (and other antispam MODs) is available here. Do note that all antispam MODs are not equally effective--you should review feedback in each item's Support area in the Customisation Database before deciding on the solution that is right for you.
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Re: [Discuss] Preventing Spam in phpBB3

Post by LSmith4285 »

I've been using the Q&A as a mod in 2 and as a feature in 3 for 2-3 years now without any problem until this weekend. We have been getting spam users on the boards posting their usual stuff.

I have changed to me having to authorise accounts but I'd like to get away from this. I'm going to change my question and see if this helps.

Anyone else having this issue?

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Re: [Discuss] Preventing Spam in phpBB3

Post by bonelifer »

If your questions are legitimately non-googlable then you probably have live human spammers. :(
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Re: [Discuss] Preventing Spam in phpBB3

Post by Volksdevil »

How well will my new idea for Q&A Captcha work? :D :lol:

Scroll to bottom to see...Is this a good idea?
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Re: [Discuss] Preventing Spam in phpBB3

Post by Lumpy Burgertushie »

Volksdevil wrote:How well will my new idea for Q&A Captcha work? :D :lol:

Scroll to bottom to see...Is this a good idea?
http://www.volksdevil.com/forum/ucp.php?mode=register
I have no idea what the answer to the question is. I think the music is from an old tv show about a computerized car, but I am not sure. If so, I have no idea what that car has to do with VWs so I would think that most people wanting to register would not know the answer either.
and, what if they have no sound or can't hear etc.

why not simply use one like:
type in the middle four characters of the following:
43iwk5
answer:
3iwk

no bot can understand that and they can't copy the question and get an answer in google etc..
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Re: [Discuss] Preventing Spam in phpBB3

Post by Pit$Bull »

Volksdevil wrote:How well will my new idea for Q&A Captcha work? :D :lol:

Scroll to bottom to see...Is this a good idea?
http://www.volksdevil.com/forum/ucp.php?mode=register
Bet you won't have to worry about any new users. :roll:

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Re: [Discuss] Preventing Spam in phpBB3

Post by Mick »

Volksdevil wrote:How well will my new idea for Q&A Captcha work? :D :lol:

Scroll to bottom to see...Is this a good idea?
http://www.volksdevil.com/forum/ucp.php?mode=register
I Googled it successfully, I wonder if bots have ears?
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Re: [Discuss] Preventing Spam in phpBB3

Post by Volksdevil »

Well you guys must be the only people in the world who don't know Knight rider :? You honestly don't know the name of the car in the TV series? I'm pretty sure ANYONE with an interest in cars will do.

Maybe I can add an image for those with no sound/can't hear?

I've been using a question as mentioned but the bots have started getting through somehow.

I dunno, maybe it's a crap idea then...I just thought with having a flash mp3 file it would make it hard for bots to figure out. The questions can be worded differently obviously. You could have any music file, and maybe ask for the x word in the song?
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Re: [Discuss] Preventing Spam in phpBB3

Post by Lumpy Burgertushie »

well, you asked for the main man associated with the music. the main man is david hasselhoff.
the car may be the main character but not the main "man". and yes I do know the car's name.

however, most people under the age of 30 probably don't know anything about it at all.

regardless of the subject you have chosen, I don't think a sound file that you have to answer guestions about is the best way to do it for technical reasons.

luck,
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