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From cb97e817ad50190e322b73f5a8dad30701b5a774 Mon Sep 17 00:00:00 2001
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From: Wes Young <wes@barely3am.com>
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Date: Sun, 13 Sep 2009 19:12:04 +0000
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Subject: [PATCH] added spamhausdrop.py to plugins
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---
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PreludeCorrelator/plugins/spamhausdrop.py | 103 +++++++++++++++++++++++++++++
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1 files changed, 103 insertions(+), 0 deletions(-)
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create mode 100644 PreludeCorrelator/plugins/spamhausdrop.py
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diff --git a/PreludeCorrelator/plugins/spamhausdrop.py b/PreludeCorrelator/plugins/spamhausdrop.py
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new file mode 100644
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index 0000000..0692cf9
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--- /dev/null
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+++ b/PreludeCorrelator/plugins/spamhausdrop.py
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@@ -0,0 +1,103 @@
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+# Copyright (C) 2009 PreludeIDS Technologies. All Rights Reserved.
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+# Author: Yoann Vandoorselaere <yoann.v@prelude-ids.com>
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+# Author: Wes Young <wes@barely3am.com>
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+#
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+# This file is part of the Prelude-Correlator program.
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+#
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+# This program is free software; you can redistribute it and/or modify
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+# it under the terms of the GNU General Public License as published by
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+# the Free Software Foundation; either version 2, or (at your option)
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+# any later version.
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+#
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+# This program is distributed in the hope that it will be useful,
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+# but WITHOUT ANY WARRANTY; without even the implied warranty of
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+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+# GNU General Public License for more details.
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+#
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+# You should have received a copy of the GNU General Public License
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+# along with this program; see the file COPYING. If not, write to
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+# the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
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+
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+import os, httplib, time
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+from PreludeCorrelator import require
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+from PreludeCorrelator.idmef import IDMEF
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+from PreludeCorrelator.pluginmanager import Plugin
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+from PreludeCorrelator.context import Context, Timer
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+from netaddr import IPAddress, IPNetwork
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+
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+class SpamhausDropPlugin(Plugin):
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+ RELOAD = 7 * 24 * 60 * 60
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+ SERVER = "www.spamhaus.org"
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+ URI = "/drop/drop.lasso"
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+ TIMEOUT = 10
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+ FILENAME = require.get_data_filename(__name__, "spamhaus_drop.dat")
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+
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+ def __loadData(self, age=0):
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+ for line in open(self.__filename, "r"):
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+ if line[0] == ';':
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+ continue
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+
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+ ip, sbl = line.split(';')
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+ ip = IPNetwork(ip.strip())
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+ self.__mynets.append(ip)
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+
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+ if self.__reload > 0:
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+ Timer(self.__reload - age, self.__retrieveData).start()
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+
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+ def __downloadData(self):
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+ self.info("Downloading host list, this might take some time...")
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+
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+ try:
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+ con = httplib.HTTPConnection(self.__server, timeout=self.__timeout)
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+ except TypeError:
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+ con = httplib.HTTPConnection(self.__server)
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+
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+ con.request("GET", self.__uri)
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+ r = con.getresponse()
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+ if r.status != 200:
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+ raise Exception, "Could not download spamhaus DROP list, error %d" % r.status
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+
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+ fd = open(self.__filename, "w")
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+ fd.write(r.read())
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+ fd.close()
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+
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+ self.info("Downloading done, processing data.")
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+
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+ def __retrieveData(self, timer=None):
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+ try:
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+ st = os.stat(self.__filename)
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+ if self.__reload <= 0 or time.time() - st.st_mtime < self.__reload:
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+ return self.__loadData(time.time() - st.st_mtime)
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+ except OSError:
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+ pass
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+
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+ self.__downloadData()
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+ self.__loadData()
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+
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+
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+ def __init__(self, env):
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+ Plugin.__init__(self, env)
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+
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+ self.__mynets = []
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+ self.__reload = self.getConfigValue("reload", self.RELOAD, type=int)
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+ self.__filename = self.getConfigValue("filename", self.FILENAME)
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+ self.__server = self.getConfigValue("server", self.SERVER)
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+ self.__uri = self.getConfigValue("uri", self.URI)
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+ self.__timeout = self.getConfigValue("timeout", self.TIMEOUT, type=float)
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+ self.__retrieveData()
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+
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+ def run(self, idmef):
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+ for source in idmef.Get("alert.source(*).node.address(*).address"):
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+ src = IPAddress(source)
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+ InNet = 0
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+ for net in self.__mynets:
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+ if src in net:
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+ InNet = 1
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+ if InNet:
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+ ca = IDMEF()
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+ ca.addAlertReference(idmef)
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+ ca.Set("alert.classification.text", "IP source matching Spamhaus DROP dataset")
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+ ca.Set("alert.correlation_alert.name", "IP source matching Spamhaus DROP dataset")
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+ ca.Set("alert.assessment.impact.description", "Spamhaus gathered this IP address in their DROP list - %s" % (source))
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+ ca.Set("alert.assessment.impact.severity", "medium")
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+ ca.alert()
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--
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1.5.6.5
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