Captcha ed aggiramento protezione

[ubbicom]

Ciao a tutti.

Sono alle prese con un attacco al modulo ASP con cui gli utenti contattano i gestori del sito web.

Nel form è previsto da sempre un sistema antispam CAPTCHA, ma nonostante questo il controllo viene superato.

Cosa posso fare di più?

Da questa mattina ricevono email del tipo:

From - Fri Aug 12 21:46:47 2011
X-Account-Key: account14
X-UIDL: 52190
X-Mozilla-Status: 0001
X-Mozilla-Status2: 00400000
X-Mozilla-Keys:                                                                                 
X-MSK: CML=1.001000
Return-Path: <biciste@karbox.cz>
Received: from aa022msr.fastwebnet.it (10.31.174.98) by cpmsres817c.intranet.fw (8.5.113)
        id 4E1D6B600033100C for #########; Fri, 12 Aug 2011 20:48:12 +0200
Received: from mxavas5.aruba.it (62.149.157.35) by aa022msr.fastwebnet.it (8.5.016.6)
        id 4DC7C340183D56C1 for #########; Fri, 12 Aug 2011 20:48:12 +0200
Received: (qmail 916 invoked by uid 89); 12 Aug 2011 18:48:11 -0000
Delivered-To: #########
Received: (qmail 909 invoked by uid 89); 12 Aug 2011 18:48:11 -0000
Received: by simscan 1.2.0 ppid: 842, pid: 851, t: 0.3936s
         scanners: clamav: 0.97-exp/m:53 spam: 3.3.1
X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mxavas5.ad.aruba.it
X-Spam-Level: ***
X-Spam-Status: No, score=3.0 required=5.0 tests=BAYES_50,FUZZY_MILLION,
	HTML_MESSAGE autolearn=disabled version=3.3.1
Received: from unknown (HELO pleskwin4-natan.test-area.it) (217.73.226.144)
  by mxavas5.ad.aruba.it with SMTP; 12 Aug 2011 18:48:11 -0000
Received: from serverdedicato ([127.0.0.1]) by pleskwin4-natan.test-area.it with MailEnable ESMTP; Fri, 12 Aug 2011 20:48:15 +0200
Thread-Topic: =?iso-8859-1?Q?#########_?=
	=?#########?=
X-MSMail-Priority: 6
thread-index: AcxZIGSOFfxvddEtR2GD7aMLT4YlUg==
Return-Receipt-To: <#########>
From: "dPZsHCyq PxrggPzXA" <biciste@karbox.cz>
To: <#########>
Cc: <biciste@karbox.cz>, <#########>
Subject: =?iso-8859-1?Q#########?=
	=?iso-8859-1?Q?#########?=
Date: Fri, 12 Aug 2011 20:48:14 +0200
Message-ID: <ABB830A16B314FD385E079FE3490CA39@serverdedicato>
MIME-Version: 1.0
Content-Type: multipart/alternative;
	boundary="----=_NextPart_000_004E_01CC5931.2831E590"
X-Mailer: Microsoft CDO for Windows 2000
Disposition-Notification-To: <#########>
Content-Class: urn:content-classes:message
Importance: high
Priority: normal
X-MimeOLE: Produced By Microsoft MimeOLE V6.00.3790.4862

This is a multi-part message in MIME format.

[Roby_72]

Cambiare strumento, probabilmente quello che usi è stato "bucato".

Roby

[ubbicom]

Originariamente inviato da Roby_72
Cambiare strumento, probabilmente quello che usi è stato "bucato".

Roby

Grazie, sai consigliarmi quale strumento alternativo?