diff --git a/bin/dcu-fetch.py b/bin/dcu-fetch.py new file mode 100644 index 0000000..a907386 --- /dev/null +++ b/bin/dcu-fetch.py @@ -0,0 +1,99 @@ +# -*- coding: utf-8 -*- +# +# dcu-fetch.py is a Python script to fetch blobs published by DCU +# +# Standard python libraries (>=2.6) + Azure Python SDK +# +# Copyright (C) 2013 Alexandre Dulaunoy - alexandre.dulaunoy@circl.lu +# +# This program 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, either version 3 of the License, or +# (at your option) any later version. +# +# This program 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 this program. If not, see . +# + +import gzip +import StringIO +from azure.storage import BlobService +from optparse import OptionParser +import sys +import json +from bson import json_util + +debug = False +header = True +output_format = "txt" + +headers = ["SourcedFrom","FileTimeUtc", "Botnet", "SourceIp", "SourcePort", "SourceIpAsnNr", "TargetIp", "TargetPort", "Payload", "SourceIpCountryCode", "SourceIpRegion", "SourceIpCity", "SourceIpPostalCode", "SourceIpLatitude", "SourceIpLongitude", "SourceIpMetroCode", "SourceIpAreaCode", "HttpRequest", "HttpReferrer", "HttpUserAgent", "HttpMethod", "HttpVersion", "HttpHost", "Custom Field 1", "Custom Field 2", "Custom Field 3", "Custom Field 4", "Custom Field 5"] + +usage = "usage: %prog [options] dcu feed blob fetcher" +parser = OptionParser(usage) +parser.add_option("-d","--debug", dest="debug", action='store_true', help="output debug message on stderr") +parser.add_option("-a","--account_name", dest="account_name", help="Microsoft Azure account name") +parser.add_option("-k","--account_key", dest="account_key", help="Microsoft Azure key to access DCU container") +parser.add_option("-c","--clear", dest="clear", action='store_true', help="Delete blobs and containers after fetching") +parser.add_option("-e","--header", dest="header", action='store_true', help="Remove field header in the output (default is displayed)") +parser.add_option("-f","--format", dest="output_format", help="output txt, json (default is txt)") + +(options, args) = parser.parse_args() + +if options.debug: + debug=True + +if options.header: + header=False + +if options.output_format: + output_format = options.output_format + +if options.account_name: + account_name=options.account_name +else: + sys.stderr.write("Azure account name is missing") + sys.exit(1) + +if options.account_key: + account_key=options.account_key +else: + sys.stderr.write("Azure key is missing") + sys.exit(1) + +if header and not options.output_format: + print '\t'.join(str(h) for h in headers) + +blob_service = BlobService(account_name, account_key) +for container in blob_service.list_containers(): + c = container.name + if c == "heartbeat": continue + if debug: sys.stderr.write("Processing container: "+str(c)+"\n") + for b in blob_service.list_blobs(c): + if debug: sys.stderr.write("Processing blob: "+str(b.name)+"\n") + data = blob_service.get_blob(c, b.name) + cs = StringIO.StringIO(data) + gzipstream = gzip.GzipFile(fileobj=cs) + if output_format == "txt": + print gzipstream.read() + elif output_format == "json": + d = {} + i = 0 + ds = gzipstream.read() + # some DCU entries contains more than 28 values (outside the + # definition of the headers) + for x in ds.strip().split("\t")[:27]: + d[headers[i]] = x + i=i+1 + print (json.dumps(d, sort_keys=True, default=json_util.default)) + if options.clear: + if debug: sys.stderr.write("Deleting blob: "+str(b.name)+"\n") + blob_service.delete_blob(c, b.name) + if options.clear: + if debug: sys.stderr.write("Deleting container: "+str(c)+"\n") + blob_service.delete_container(c)