OT? -- Banning IP's making high volume of bad requests

[Matt Price]

Hi folks,

Earlier this week the ubuntu server my courses run on was compromised
and started spammming.  I have done some hardening and among
otherthings installed fail2ban and logwatch, then put the server back
up yesterday afternoon.

This morning I woke up to see  hundreds of thousands of requests from
2 IPs to a web page that has a known exploit.  Here is a log entry:

195.154.136.19 - - [19/Sep/2014:07:33:10 -0400] "POST /xmlrpc.php
HTTP/1.0" 403 470 "-" "Mozilla/4.0 (compatible: MSIE 7.0; Windows NT
6.0)"

I would like to tell fail2ban to block these IP's when this happens --
they aren't doing any damage yet but they account for most of my
bandwith right now and I would rather they not keep me o ntheir 'easy
targets' list.  Does anyone know how to do this -- if not with
fail2ban than with some other tool?

Thanks,

Matt
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