Miscellaneous Hacks - Check Proxy RBL on New User Registration.

Check Proxy RBL on New User Registration Version 4.1

Version 4.1 includes remains unchanged from version 4.0 with the exception of a code fix to deal with an SQL injection security hole in the code.

What does this hack do?

Hooking in at register_addmember_process and register_addmember_complete this hack compares the IP address of the person registering with the Realtime Block List(s) of your choice. Based on your configuration the RBL Checker will then perform one of these actions:

1. Nothing, the registration continues as normal.
2. Registration continues as normal, but the user is automatically moved into the "Pending Moderation" group of your choice.
3. Registration continues as normal, but the user is automatically permanently banned.
4. Registration is blocked, an error message is displayed to the user.

Please Note: It is strongly recommended that you configure PM or Thread based notification so that you may monitor registrations that are from IPs that are a positive hit on the RBL. Especially if you configure the checker to allow registrations to complete normally.

These options are configurable in AdminCP > Options > DM-RBL Check on Registration.


Why Block Proxies?

Banned and Spammers users often get around IP bans by simply using an open proxy - of which there are thousands - to get around the IP ban. Very few legitimate users slow their surfing by using an anonymous proxy.


How do you Install?

1. Create a user from which PMs, Posts, etc. will be generated.
2. In your adminCP obtain values for the "banned" and "pending moderation" groupIDs (Defaults are 8 and 4).
3. Install the attached product.

IMPORTANT NOTE:You must specify a username if you plan on configuring the AUTOBAN or NOTIFICATION options. Otherwise you WILL get errors.


What is the default config?
By default the RBLChecker will check the IP of a new registration, allow registration to complete, but add the new user to the "COPPA Members Awaiting Moderation" usergroup. You can then approve/reject those members depending on whether you think they are/aren't spammers/trolls.

You can modify the settings in the AdminCP to Ban or Block as you like.


Hack History:

Version 4.1
- Fixed SQL Injection security hole.
- Fixed some minor typos in automatically generated messages.

Version 4.0
- Added ability to specify error reported on blocks.
- Added ability to specify ban reason and custom title.
- Added ability to move users to "pending moderation" group if registration is allowed.
- Updated list of RBLs checked based on testing with lists of "anonymous" proxies.
- Fixed IP address of Notification Posts equalling IP of blocked user. (Now Notification IP = 1.2.3.4)

Version 3.2
- Fixed typo causing blocked registrations to be reported as allowed.

Version 3.1
- change in variable name in v3.0 broke RBL checking. Corrected error.
- match notification now includes the name of the RBL that matches the IP.

Version 3.0
- plugin now fires at "register_addmember_process" allowing the user to completely fill in the form.
- Added the ability to specify more than one RBL.
- Added option to specify whether registration is blocked or allowed to complete.
- Added option to automatically ban registrations that are allowed to complete but have a positive IP match.
- Added option to specify user who is "notifier".
- Added option to specify a forum where a notification thread will be created.
- Added option to supress notification PM / Thread when an IP matches blacklist or known proxy list.
- Added customized error codes for notifications - notification now indicates whether a registration IP has matched the RBL, blacklist, or predefined list of anonymizers.
- Reworded Phrases.
- Removed 10.x.x.x IP from known proxy/anonymizer list.

version 2.0
- Added configuration options under vboptions > DM-RBL Check on Registration.
- Added PM on Block.
- Added option to select RBL.
- Added Custom Whitelist.
- Added Custom Blacklist.
- Added list of free proxies.
- Changed default RBL to sbl-xbl.spamhaus.org
- Added option to enable/disable checking.

version 1.0
- added plugin to check against opm.tornevall.org
- added custom phrase to be reported as error on registration start.


Using this Hack?
If you install this hack please click "Installed" to receive updates.

If you find this hack useful you can always hit that paypal button too...

[gsk8]

How about 3.8.2? I really liked this....

[enemy@fps]

thank you

i hope the ++++ing drugs spammer will keep away now

[TMM-TT]

Originally Posted by enemy@fps

thank you

i hope the ++++ing drugs spammer will keep away now

Probably only if they are using proxies and most of the time, such spammers don't. Otherwise normal proxycheckers may be unusable. But there's a solution since Tornevall (http://dnsbl.tornevall.org/) are now working together with "StopForumSpam".

Adding opm.tornevall.org to the list of rbl's should hopefully help here. I don't know if this plugin supports bitmasking? Just to lower the risk of false positives.

Almost 20000 spamhosts has been added to the blacklist, since 2009-07-16.

"2009-07-16: Administrative access makes it possible to add own hosts - initiating coorporation with Stop Forum Spam"

[irishblacknight]

Does anyone know if this plugin is compatible with VB4?

[TMM-TT]

The proxychecker itself should be compatible since it's all about resolving ips from blacklists, but it's not sure that the rest of the plugin is (like errormessages etc). I haven't actually tested it myself yet, but I'm working on it.

[Iguana Goddess]

I have installed this on 3.8.4 it didn't break anything so far so I guess we will see how it goes as far as being effective.

[soundbarrierpro]

I'm trying to update this plugin with TMM-TT's advise. All of a sudden I'm getting bombarded with auto registrations. They post a DivX url and add all kinds of garbage into the profile "Man, ICQ number......". So annoying.

[lazytown]

I know this is a strange questions, but has anyone tried this on 4.2? I don't see any good RBL registration blockers for the 4.x series.

[kronnos]

Just looking to clear up the database a bit and was wondering if i temp[orary uninstall this mod, does it remove any database tables with it.

If so, what are the specific tables/columns created by this mod?

Thanks!