IP Addresses Banned from the Forum

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Stuart
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Postby Stuart » 06 Jan 2011, 10:27

This is your Webmaster / Forum Admin speaking:

This morning, Thur 6th Jan 2011, I banned a series of TCP/IP addresses evidently belonging to Russian nasties who were attempting to gain access to our forum. Unfortunately whole ranges of IP addresses got banned via wildcards (e.g. 121.*) rather than specific IP ranges and for this I apologise. :oops:

If you know of anyone who is still banned or if your home or wk PC is banned can you please PM me with your IP address - if this is a work address you'll need to find the address of the Internet facing proxy or gateway, not your actual PC address. Also, if you use a home router / gateway device you'll need the address of it, not your PC's address.

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jimmy
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Postby jimmy » 07 Jan 2011, 06:16

Stuart

That's a class A Address, so unless it has been broken into a CIDR address, then it shouldn't be too much of an issue for many people.

James

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Stuart
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Postby Stuart » 07 Jan 2011, 09:35

James - It locked lots of people out as the forum interpreted 121.* as 121.*.*.*

I didn't put those entries in either so don't know how they got there, really, it's weird. And if I try to actually put in a banned address as 121.* it won't accept it .... it wants 121.*.*.*

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Karzie
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Postby Karzie » 07 Jan 2011, 10:13

Maybe they poisoned the DNS cache for good measure.

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Stuart
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Postby Stuart » 08 Jan 2011, 13:28

OK - this is getting out of hand! The Russians bots have registered 50 users in the last 12 hours. I can't keep up with banning all these IP address ranges so I have a plan.

I have downloaded a list of every Australian IP address range (supposedly). I am then going to allow all these addresses while banning every other address via wild cards i.e.
Banned list
1.*.*.*
2.*.*.*
etc
The allowed list overrides the banned list.
The allowed list will contain 2696 separate entries. I'll test it first using my own address range. Thoughts people?
here's a sample of the allowed list:
114.30.64.0 - 114.30.71.255
114.30.96.0 - 114.30.127.255
114.31.72.0 - 114.31.79.255
114.31.96.0 - 114.31.103.255
114.31.192.0 - 114.31.207.255
114.72.0.0 - 114.78.255.255
114.111.128.0 - 114.111.159.255
114.129.128.0 - 114.129.191.255
114.141.96.0 - 114.141.111.255
114.141.192.0 - 114.141.207.255
114.142.160.0 - 114.142.175.255
114.198.0.0 - 114.198.127.255
114.198.248.0 - 114.198.255.255
115.30.32.0 - 115.30.63.255
115.31.88.0 - 115.31.95.255
115.42.0.0 - 115.42.63.255
115.64.0.0 - 115.64.255.255
115.69.0.0 - 115.69.63.255
115.69.160.0 - 115.69.191.255
~snip~

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weiyun
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Postby weiyun » 08 Jan 2011, 13:43

We do have members on O/S trips, going through corporate networks that's located O/Ss, and then there are international visitors. With such a ban rule, this forum is going to opt out of the "Internet" as we know it.

Question is, why are we being targeted? Is there something particularly vulnerable in our forum setup?

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jimmy
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Postby jimmy » 08 Jan 2011, 13:50


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Karzie
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Postby Karzie » 08 Jan 2011, 22:21

Might be worth having a talk to whoever does security for the ISP. They've been dealing with this sort of crap for years.

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Stuart
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Postby Stuart » 10 Jan 2011, 08:02

@James - thanks for the links to the anti-spam add-ins. I've downloaded the pictures one to install soon. I did however change the user registration graphic from the easiest one to the hardest one to see as it's in 3D and we've had no new SpamBot registrations for over 24 hours. I'll still install the picture one though.

@Weiyun - I hadn't even thought about when people are OS!

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Toff
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Postby Toff » 12 Jan 2011, 19:30

Stuart, why don't you require new members to undergo a verification process before being able to post? I.e. new members provide an e-mail address and a 2 line summary about why they want to join, including where they live. Once you review their answer, you can e-mail them a confirmation password to access the site.

Involves a small amount of work every now and then to verify the legit members, but I'm sure it would involve less time than you are currently spending killing all the bots.

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mikesbytes
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Postby mikesbytes » 12 Jan 2011, 22:18

Spammers are currently attacking usernames on various forums, applying generic passwords to try to highjack the username. Anyone with a simple password should upgrade it to something more difficult to crack

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Stuart
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Postby Stuart » 13 Jan 2011, 10:54


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mikesbytes
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Postby mikesbytes » 14 Jan 2011, 07:53

I can get you a list of 31,000 banned IP's if you want it

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jbcow
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Postby jbcow » 14 Jan 2011, 21:46

FWIW I was banned from the forums while travelling in India. But that could have been a transient state, I gave up trying. It now works back home.

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T-Bone
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Postby T-Bone » 16 Jan 2011, 12:12

Looks like the bots are at it again....

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Stuart
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Joined: 11 Mar 2008, 10:43
Location: Dulwich Hill

Postby Stuart » 17 Jan 2011, 08:16


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Stuart
Posts: 2568
Joined: 11 Mar 2008, 10:43
Location: Dulwich Hill

Postby Stuart » 25 Feb 2011, 10:25

Update: I've now included a very simple anti-SPAM test for registration that appears to be working very well. Got the info from the phpBB forum.

It's a simple question that asks if you're a spambot or not with the default set to yes, which of course stops you being registered.

I have also deleted all the entries in the banned IP list via the mySQL DB as they were not working at all and stopped legitimate users from accessing the forum while overseas.


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