misp-modules/misp_modules/modules/expansion/geoip_asn.py

65 lines
2.0 KiB
Python

import json
import geoip2.database
import sys
import logging
log = logging.getLogger('geoip_asn')
log.setLevel(logging.DEBUG)
ch = logging.StreamHandler(sys.stdout)
ch.setLevel(logging.DEBUG)
formatter = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')
ch.setFormatter(formatter)
log.addHandler(ch)
misperrors = {'error': 'Error'}
mispattributes = {'input': ['ip-src', 'ip-dst', 'domain|ip'], 'output': ['freetext']}
moduleconfig = ['local_geolite_db']
# possible module-types: 'expansion', 'hover' or both
moduleinfo = {'version': '0.1', 'author': 'GlennHD',
'description': 'Query a local copy of the Maxmind Geolite ASN database (MMDB format)',
'module-type': ['expansion', 'hover']}
def handler(q=False):
if q is False:
return False
request = json.loads(q)
if not request.get('config') or not request['config'].get('local_geolite_db'):
return {'error': 'Please specify the path of your local copy of the Maxmind Geolite ASN database'}
path_to_geolite = request['config']['local_geolite_db']
if request.get('ip-dst'):
toquery = request['ip-dst']
elif request.get('ip-src'):
toquery = request['ip-src']
elif request.get('domain|ip'):
toquery = request['domain|ip'].split('|')[1]
else:
return False
try:
reader = geoip2.database.Reader(path_to_geolite)
except FileNotFoundError:
return {'error': f'Unable to locate the GeoLite database you specified ({path_to_geolite}).'}
log.debug(toquery)
try:
answer = reader.asn(toquery)
stringmap = 'ASN=' + str(answer.autonomous_system_number) + ', AS Org=' + str(answer.autonomous_system_organization)
except Exception as e:
misperrors['error'] = f"GeoIP resolving error: {e}"
return misperrors
r = {'results': [{'types': mispattributes['output'], 'values': stringmap}]}
return r
def introspection():
return mispattributes
def version():
moduleinfo['config'] = moduleconfig
return moduleinfo