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05-03-24 02:09 AM |
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| Guest: Register | Login | |||
| 0 users currently in Computing | 2 guests |
| Main - Computing - Message Board Spam? | New thread | New reply |
| Dwedit |
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 Red Paratroopa Level: 30 Posts: 70/162 EXP: 163227 Next: 2642 Since: 03-07-07 From: Chicago Last post: 3525 days Last view: 1620 days |
Does this place ever get any attempted spam?
Recently I got crap on my message board where the subject line was a series of gibberish containing what appeared to be a stock ticker symbol name, then the body of the message said "Sorfy plarse  \ Wrogn ctaeggry.p.. \ wil be acrrful".
This is very different than the usual spam where they actually try to send you to a URL. Aside from the ever-useless IP bans, or disallowing guest posting, what ways could I try to stop these botnet assholes? ____________________ |
| HydraPheetz |
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 Red Cheep-cheep Level: 34 Posts: 132/216 EXP: 251627 Next: 2024 Since: 02-19-07 Last post: 6093 days Last view: 6075 days |
Posted by Dwedit This suggestion might sound a bit weird, but maybe try checking a list of valid User-Agents? There's quite a few you'd have to cover for actual browsers (not botnets), assuming they (the botnetters) aren't spoofing it to begin with.  ____________________ 
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| Dwedit |
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Red Paratroopa Level: 30 Posts: 71/162 EXP: 163227 Next: 2642 Since: 03-07-07 From: Chicago Last post: 3525 days Last view: 1620 days |
I would assume that any well-designed bot would claim to be Internet Explorer. Hell, when I use wget on a blocked site, I just forge its user agent to identify as IE. ____________________ |
| HyperHacker |
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... Level: 73 Posts: 1002/1220 EXP: 3368574 Next: 117294 Since: 03-25-07 From: no Last post: 6098 days Last view: 6081 days |
I see a lot of spam in some places that doesn't seem to include a URL. I also frequently get emails consisting of a single random word.  |
| theclaw |
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 Panser Level: 42 Posts: 172/348 EXP: 513127 Next: 8235 Since: 03-26-07 Last post: 4167 days Last view: 2118 days |
I've noticed places on Yahoo get a lot of spam. Look at the guestbook for that GeoCities site of mine. Having a better homepage now, I rarely visit there.
And my bulk email folder has crappy stuff. "Gift card" offers, gray market pharmacies dealing in all those so-called 'enhancement' products like Viagra... Haven't seen that type of spam on any forums though. ____________________  |
| Dwedit |
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Red Paratroopa Level: 30 Posts: 72/162 EXP: 163227 Next: 2642 Since: 03-07-07 From: Chicago Last post: 3525 days Last view: 1620 days |
The two things I did on my board (Punbb) to try to stop spam:
#1: The time zone trick! Punbb asks users who register for their time zone. The prompt defaults to UTC-12. UTC-12 is a nautical time zone which only applies to the ocean and uninhabited areas. So any time someone registers with UTC-12 as their time zone, give an error message. #2: Just reject any guest including http:// or www. in their posts. Unfortunately, now the spammers aren't even plugging websites anymore, so that shoots out #2. I've seen some sites use invisible fields which if filled make the post invalid, but I don't think that trick would work with the smarter bots. Now I get more spams that human posts. It's so lonely at Dwedit's board... ____________________ |
| Kernal |
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Gone Level: 88 Posts: 1874/1881 EXP: 6465606 Next: 185058 Since: 02-20-07 Last post: 6153 days Last view: 6143 days |
I was once at a board where the only new registrants were spammers. It was rather annoying. On one of my old websites, I had some spam in my guestbook from users named "bella" and "anya". It was kinda creepy as those were the names of Acmlmers. Do spambots check the webmaster's history and take usernames from boards in it nowadays? Nah, it has to be a freak coincidence... |
| Darkdata |
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 Mole Level: 43 Posts: 316/366 EXP: 555010 Next: 10036 Since: 02-19-07 From: 
Last post: 6132 days Last view: 6130 days |
Same idea, through css: http://www.modernbluedesign.com/web-design-blog/fighting-spam-with-css/
It should stop all but the smartest bots, however those are few, and you should be able to nail them. ____________________  |
| joe |
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Red Paratroopa Level: 31 Posts: 116/172 EXP: 178118 Next: 7245 Since: 04-08-07 From: Justus League 2 Last post: 6123 days Last view: 6091 days |
Here's an idea, ask people to enter the answer to life, the universe, and everything and include a link to this so robots won't be able to guess by taking information off your page. ____________________ "I'm sick of it and I'm out. See you around." ~Cpu's last post here |
| Main - Computing - Message Board Spam? | New thread | New reply |
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