I have just stumbled upon Bad Behavior - a plugin for PHP that promises to detect spam and malicious crawlers by preventing them from accessing the site at all. Does something similar exist for ASP.NET and ASP.NET MVC? I am interested in blocking access to the site altogether, not in detecting spam after it was posted. EDIT: I am int...
I have in mind an idea for a generally accessible site that needs to allow images to be uploaded. But I'm stymied on how to prevent image spam: porn, ads in image form, etc. Assumptions: I'm assuming that the spammers are clever, even human. I'm skeptical of the efficacy of image analysis software. I do not have the resources to appr...
hi all, just curious if there was a good service paid or unpaid where I can send in either a user's email address or the domain from their email address and get back if they're a known spammer or not? thanks ...
Is there any way to use PHP code to query a DNSBL (block list) provider and find out if the IP address submitted is a bad actor? I would like to take an existing IP address out of a registration database, then check whether it's a known block-listed IP address by performing a lookup on it, then if it's a blacklisted, do an action on it ...
To avoid spammers, what's a good strategy for imposing limits on users when sending email from our site? A count limit per day on individual IPs? Sender emails? Domains? In general terms, but recommended figures will also be helpful. Our users can send emails through our web page. They can register and log in but are also allowed to do ...
Hi folks, this is the use case I'm trying to figure this out for. I have a list of spam subscriptions to a service and they are killing conversion rate and other usability studies. The emails inserted look like the following: [email protected] [email protected] [email protected] ro...
Hi folks, this is correlated to a question I asked earlier (question) I have a list of manually created strings such as: lucy87 gordan_king fancy_unicorn77 joplucky_kanga90 base_belong_to_narwhals and a list of randomized strings: johnkdf pancake90kgjd fancy_jagookfk manhattanljg What gi...
Hi All, My basic question is how to prevent spam and dirty words in a comment post system under python (django). I have a collection of phrases (approximately 3000 phrases) to be blocked. What I want to do is like this: If I found a comment which has a dirty-word when user clicks the post button, then the web should popup a warnin...
I am looking for a community moderated way of managing/eliminating spam and offensive content. Functionality similar to StackOverflow and many other sites seems like a good way to go. Although I'm sure this could greatly vary based on specific needs, I am curious about the backend mechanism/algorithm --that is, has anyone had success u...
I want to have an admin page to manage user messages reported as 'spam'. I know how to use MySql and php to have a list of messages reported but I don't know what is the more safe way to access to this page. Local, https,... What strategy use big websites as Facebook, MySpace,... to verify that a message is a true spam and to delete it? ...
What is the most secure way to fight spam?Any algorithm?Or way to fight back spammers? ...
So, I've just started working with a new Joomla site, and something we've added has started hijacking various parts of the site and added links to various places we don't want. Unfortunately, I can't give out a link to the live site right now, but I can describe the problems: In the footer, where it should say "Designed By: " and the n...
About a week ago I had to pull the plug on my PhpBB forums because spam had reached totally unmanageable levels: The database contained well over 300,000 spam topics & messages, for a total of 8 Gb of junk. None of it was displayed on the website, as the forum was on a strict moderation queue, so there was no point to it, but the volume...
I have a contact form on my website, and everything works like a charm. I am using a anti-injection validation script, that I suspect is supposed to send a notification when somebody attempts to use header injection. I have tested this thouroghly and cannot determine why it will not notify me on the event of an abuse. The script is below...
Whats the easiest way of stopping spammers from probing your forms (preferably without deterring real users) ...
I am working on an email program and I want to add a basic way to detect spam based on the domain/sender of the mail. One service that I was looking at was gossip (http://gossip-project.sourceforge.net/) but I don't want to go to the hassle of setting up a dedicated Gossip server. I know that there are a lot of email blacklists (DNSBL's)...
Hi we have just noticed a bunch of Nigerian spam accounts in our email system. Now, we do have a reCaptcha in the signup form but apparently they circumvent it, manually or otherwise. It seems like a semi-manual circumvention since the accounts aren't created in bulk but instead as a steady stream with a few minutes in between. Since mo...
Hi, I'm always surprised by the high quality of Gmail spam filter. For the last year, it filtered 99.95% of the spam, and blocked by mistake only one mail. By comparison, any other mail service I used makes at least one mistake for every 50 mails. How, internally, Gmail does to reach this level of quality? Is it based on customers feed...
hi all, i'm very aware that this is probably not a stackoverflow question, but i figure someone here might know the answer... a few months back i was sent an image detailing a neat method for spam prevention using a little known feature of gmail.. basically you can use a specific syntax in your email address when you give it out to in...
Is there a way to determine if the given message is a spam? For example those who posts on forums and advertise their own sites for various products. ...