From b183b9cbb470bd578d6c094ecea13b49b8f60303 Mon Sep 17 00:00:00 2001
From: Miroslav Stampar <miroslav.stampar@gmail.com>
Date: Mon, 25 Jan 2010 00:25:58 +0000
Subject: [PATCH] contains method for detecting if the generated payload is
 detectable by the PHPIDS filter rules

---
 lib/utils/detection.py | 56 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 56 insertions(+)
 create mode 100644 lib/utils/detection.py

diff --git a/lib/utils/detection.py b/lib/utils/detection.py
new file mode 100644
index 000000000..47fcec618
--- /dev/null
+++ b/lib/utils/detection.py
@@ -0,0 +1,56 @@
+#!/usr/bin/env python
+
+"""
+$Id: parenthesis.py 1003 2010-01-02 02:02:12Z inquisb $
+
+This file is part of the sqlmap project, http://sqlmap.sourceforge.net.
+
+Copyright (c) 2007-2009 Bernardo Damele A. G. <bernardo.damele@gmail.com>
+Copyright (c) 2006 Daniele Bellucci <daniele.bellucci@gmail.com>
+
+sqlmap is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation version 2 of the License.
+
+sqlmap is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+details.
+
+You should have received a copy of the GNU General Public License along
+with sqlmap; if not, write to the Free Software Foundation, Inc., 51
+Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+"""
+import re
+import urllib2
+from xml.dom import minidom
+
+from lib.core.data import logger
+
+rules = None
+
+def checkPayload(string):
+    """
+    This method checks if the generated payload is detectable by an PHPIDS filter rules
+    """
+    global rules
+
+    if not rules:
+        url = 'https://svn.phpids.org/svn/trunk/lib/IDS/default_filter.xml'
+        request = urllib2.Request(url)
+        response = urllib2.urlopen(request)
+        xmlrules = minidom.parse(response).documentElement
+        response.close()
+        rules = []
+        for xmlrule in xmlrules.getElementsByTagName("filter"):
+            try:
+                rule = re.compile(xmlrule.getElementsByTagName('rule')[0].childNodes[0].nodeValue)
+                desc = xmlrule.getElementsByTagName('description')[0].childNodes[0].nodeValue
+                desc = desc.replace('Detects', 'Detected').replace('finds', 'Found').replace('attempts', 'attempt').replace('injections', 'injection').replace('attacks', 'attack')
+                rules.append((rule, desc))
+            except:
+                pass
+    
+    for rule, desc in rules:
+        if rule.search(string, re.IGNORECASE):
+            logger.warn("highly probable IDS/IPS detection: '%s'" % desc)