mirror of https://github.com/MISP/misp-galaxy
242 lines
11 KiB
Python
Executable File
242 lines
11 KiB
Python
Executable File
#!/usr/bin/env python3
|
|
import json
|
|
import re
|
|
import os
|
|
import argparse
|
|
|
|
parser = argparse.ArgumentParser(description='Create a couple galaxy/cluster with cti\'s intrusion-sets\nMust be in the tools folder')
|
|
parser.add_argument("-p", "--path", required=True, help="Path of the mitre/cti folder")
|
|
|
|
args = parser.parse_args()
|
|
root_folder = args.path
|
|
|
|
values = []
|
|
misp_dir = '../'
|
|
|
|
|
|
domains = ['enterprise-attack', 'mobile-attack', 'pre-attack']
|
|
types = {'data-source': 'x-mitre-data-source',
|
|
'attack-pattern': 'attack-pattern',
|
|
'course-of-action': 'course-of-action',
|
|
'intrusion-set': 'intrusion-set',
|
|
'malware': 'malware',
|
|
'tool': 'tool',
|
|
'data-component': 'x-mitre-data-component'
|
|
}
|
|
mitre_sources = ['mitre-attack', 'mitre-ics-attack', 'mitre-pre-attack', 'mitre-mobile-attack']
|
|
|
|
all_data = {} # variable that will contain everything
|
|
|
|
# read in the non-MITRE data
|
|
# we need this to be able to build a list of non-MITRE-UUIDs which we will use later on
|
|
# to remove relations that are from MITRE.
|
|
# the reasoning is that the new MITRE export might contain less relationships than it did before
|
|
# so we cannot migrate all existing relationships as such
|
|
non_mitre_uuids = set()
|
|
for fname in os.listdir(os.path.join(misp_dir, 'clusters')):
|
|
if 'mitre' in fname:
|
|
continue
|
|
if '.json' in fname:
|
|
# print(fname)
|
|
with open(os.path.join(misp_dir, 'clusters', fname)) as f_in:
|
|
cluster_data = json.load(f_in)
|
|
for cluster in cluster_data['values']:
|
|
non_mitre_uuids.add(cluster['uuid'])
|
|
|
|
# read in existing MITRE data
|
|
# first build a data set of the MISP Galaxy ATT&CK elements by using the UUID as reference, this speeds up lookups later on.
|
|
# at the end we will convert everything again to separate datasets
|
|
all_data_uuid = {}
|
|
for t in types:
|
|
fname = os.path.join(misp_dir, 'clusters', 'mitre-{}.json'.format(t))
|
|
if os.path.exists(fname):
|
|
# print("##### {}".format(fname))
|
|
with open(fname) as f:
|
|
file_data = json.load(f)
|
|
# print(file_data)
|
|
for value in file_data['values']:
|
|
# remove (old)MITRE relations, and keep non-MITRE relations
|
|
if 'related' in value:
|
|
related_original = value['related']
|
|
related_new = []
|
|
for rel in related_original:
|
|
if rel['dest-uuid'] in non_mitre_uuids:
|
|
related_new.append(rel)
|
|
value['related'] = related_new
|
|
# find and handle duplicate uuids
|
|
if value['uuid'] in all_data_uuid:
|
|
# exit("ERROR: Something is really wrong, we seem to have duplicates.")
|
|
# if it already exists we need to copy over all the data manually to merge it
|
|
# on the other hand, from a manual analysis it looks like it's mostly the relations that are different
|
|
# so now we will just copy over the relationships
|
|
# actually, at time of writing the code below results in no change as the new items always contained more than the previously seen items
|
|
value_orig = all_data_uuid[value['uuid']]
|
|
if 'related' in value_orig:
|
|
for related_item in value_orig['related']:
|
|
if related_item not in value['related']:
|
|
value['related'].append(related_item)
|
|
all_data_uuid[value['uuid']] = value
|
|
|
|
# now load the MITRE ATT&CK
|
|
for domain in domains:
|
|
attack_dir = os.path.join(root_folder, domain)
|
|
if not os.path.exists(attack_dir):
|
|
exit("ERROR: MITRE ATT&CK folder incorrect")
|
|
|
|
with open(os.path.join(attack_dir, domain + '.json')) as f:
|
|
attack_data = json.load(f)
|
|
|
|
for item in attack_data['objects']:
|
|
if item['type'] not in types.values():
|
|
continue
|
|
|
|
# print(json.dumps(item, indent=2, sort_keys=True, ensure_ascii=False))
|
|
try:
|
|
# build the new data structure
|
|
value = {}
|
|
uuid = re.search('--(.*)$', item['id']).group(0)[2:]
|
|
# item exist already in the all_data set
|
|
update = False
|
|
if uuid in all_data_uuid:
|
|
value = all_data_uuid[uuid]
|
|
|
|
if 'description' in item:
|
|
value['description'] = item['description']
|
|
if 'external_references' in item:
|
|
value['value'] = item['name'] + ' - ' + item['external_references'][0]['external_id']
|
|
else:
|
|
value['value'] = item['name']
|
|
value['meta'] = {}
|
|
value['meta']['refs'] = []
|
|
value['uuid'] = re.search('--(.*)$', item['id']).group(0)[2:]
|
|
|
|
if 'aliases' in item:
|
|
value['meta']['synonyms'] = item['aliases']
|
|
if 'x_mitre_aliases' in item:
|
|
value['meta']['synonyms'] = item['x_mitre_aliases']
|
|
|
|
if 'external_references' in item:
|
|
for reference in item['external_references']:
|
|
if 'url' in reference and reference['url'] not in value['meta']['refs']:
|
|
value['meta']['refs'].append(reference['url'])
|
|
# Find Mitre external IDs from allowed sources
|
|
if 'external_id' in reference and reference.get("source_name", None) in mitre_sources:
|
|
value['meta']['external_id'] = reference['external_id']
|
|
if not value['meta'].get('external_id', None):
|
|
exit("Entry is missing an external ID, please update mitre_sources. Available references: {}".format(
|
|
json.dumps(item['external_references'])
|
|
))
|
|
|
|
if 'kill_chain_phases' in item: # many (but not all) attack-patterns have this
|
|
value['meta']['kill_chain'] = []
|
|
for killchain in item['kill_chain_phases']:
|
|
value['meta']['kill_chain'].append(killchain['kill_chain_name'] + ':' + killchain['phase_name'])
|
|
if 'x_mitre_data_sources' in item:
|
|
value['meta']['mitre_data_sources'] = item['x_mitre_data_sources']
|
|
if 'x_mitre_platforms' in item:
|
|
value['meta']['mitre_platforms'] = item['x_mitre_platforms']
|
|
# TODO add the other x_mitre elements dynamically
|
|
|
|
# relationships will be build separately afterwards
|
|
value['type'] = item['type'] # remove this before dump to json
|
|
# print(json.dumps(value, sort_keys=True, indent=2))
|
|
|
|
# FIXME if 'x_mitre_deprecated' , 'revoked'
|
|
all_data_uuid[uuid] = value
|
|
|
|
except Exception as e:
|
|
print(json.dumps(item, sort_keys=True, indent=2))
|
|
import traceback
|
|
traceback.print_exc()
|
|
|
|
# process the 'relationship' type as we now know the existence of all ATT&CK uuids
|
|
for item in attack_data['objects']:
|
|
if item['type'] != 'relationship':
|
|
continue
|
|
# print(json.dumps(item, indent=2, sort_keys=True, ensure_ascii=False))
|
|
|
|
rel_type = item['relationship_type']
|
|
dest_uuid = re.findall(r'--([0-9a-f-]+)', item['target_ref']).pop()
|
|
source_uuid = re.findall(r'--([0-9a-f-]+)', item['source_ref']).pop()
|
|
tags = []
|
|
|
|
# add the relation in the defined way
|
|
rel_source = {
|
|
"dest-uuid": dest_uuid,
|
|
"type": rel_type
|
|
}
|
|
try:
|
|
if 'related' not in all_data_uuid[source_uuid]:
|
|
all_data_uuid[source_uuid]['related'] = []
|
|
if rel_source not in all_data_uuid[source_uuid]['related']:
|
|
all_data_uuid[source_uuid]['related'].append(rel_source)
|
|
except KeyError:
|
|
pass # ignore relations from which we do not know the source
|
|
|
|
# LATER find the opposite word of "rel_type" and build the relation in the opposite direction
|
|
|
|
# process (again) the data-component, as they create relationships using 'x_mitre_data_source_ref' instead...
|
|
for item in attack_data['objects']:
|
|
if item['type'] != 'x-mitre-data-component':
|
|
continue
|
|
data_source_uuid = re.findall(r'--([0-9a-f-]+)', item['x_mitre_data_source_ref']).pop()
|
|
data_component_uuid = re.findall(r'--([0-9a-f-]+)', item['id']).pop()
|
|
# create relationship bidirectionally
|
|
rel_data_source = {
|
|
"dest-uuid": data_component_uuid,
|
|
"type": 'includes' # FIXME use a valid type
|
|
}
|
|
try:
|
|
if 'related' not in all_data_uuid[data_source_uuid]:
|
|
all_data_uuid[data_source_uuid]['related'] = []
|
|
if rel_data_source not in all_data_uuid[data_source_uuid]['related']:
|
|
all_data_uuid[data_source_uuid]['related'].append(rel_data_source)
|
|
except KeyError:
|
|
pass # ignore relations from which we do not know the source
|
|
rel_data_component = {
|
|
"dest-uuid": data_component_uuid,
|
|
"type": 'included-in' # FIXME use a valid type
|
|
}
|
|
try:
|
|
if 'related' not in all_data_uuid[data_component_uuid]:
|
|
all_data_uuid[data_component_uuid]['related'] = []
|
|
if rel_data_component not in all_data_uuid[data_component_uuid]['related']:
|
|
all_data_uuid[data_component_uuid]['related'].append(rel_data_component)
|
|
except KeyError:
|
|
pass # ignore relations from which we do not know the source
|
|
|
|
|
|
# dump all_data to their respective file
|
|
for t, meta_t in types.items():
|
|
fname = os.path.join(misp_dir, 'clusters', 'mitre-{}.json'.format(t))
|
|
if not os.path.exists(fname):
|
|
exit("File {} does not exist, this is unexpected.".format(fname))
|
|
with open(fname) as f:
|
|
file_data = json.load(f)
|
|
|
|
file_data['values'] = []
|
|
for item in all_data_uuid.values():
|
|
# print(json.dumps(item, sort_keys=True, indent=2))
|
|
if 'type' not in item or item['type'] != meta_t: # drop old data or not from the right type
|
|
continue
|
|
item_2 = item.copy()
|
|
item_2.pop('type', None)
|
|
file_data['values'].append(item_2)
|
|
|
|
# FIXME the sort algo needs to be further improved, potentially with a recursive deep sort
|
|
file_data['values'] = sorted(file_data['values'], key=lambda x: sorted(x['value']))
|
|
for item in file_data['values']:
|
|
if 'related' in item:
|
|
item['related'] = sorted(item['related'], key=lambda x: x['dest-uuid'])
|
|
if 'meta' in item:
|
|
if 'refs' in item['meta']:
|
|
item['meta']['refs'] = sorted(item['meta']['refs'])
|
|
if 'mitre_data_sources' in item['meta']:
|
|
item['meta']['mitre_data_sources'] = sorted(item['meta']['mitre_data_sources'])
|
|
file_data['version'] += 1
|
|
with open(fname, 'w') as f:
|
|
json.dump(file_data, f, indent=2, sort_keys=True, ensure_ascii=False)
|
|
f.write('\n') # only needed for the beauty and to be compliant with jq_all_the_things
|
|
|
|
print("All done, please don't forget to ./jq_all_the_things.sh, commit, and then ./validate_all.sh.")
|