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AIL-framework
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AIL-framework/bin/lib/objects/Decodeds.py

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#!/usr/bin/env python3
# -*-coding:UTF-8 -*
import os
import re
import sys
import magic
import requests
import zipfile
from flask import url_for
from io import BytesIO
from pymisp import MISPObject
sys.path.append(os.environ['AIL_BIN'])
##################################
# Import Project packages
##################################
from lib.ConfigLoader import ConfigLoader
from lib.objects.abstract_daterange_object import AbstractDaterangeObject
from packages import Date
sys.path.append('../../configs/keys')
try:
from virusTotalKEYS import vt_key
if vt_key != '':
VT_TOKEN = vt_key
VT_ENABLED = True
# print('VT submission is enabled')
else:
VT_ENABLED = False
# print('VT submission is disabled')
except:
VT_TOKEN = None
VT_ENABLED = False
# print('VT submission is disabled')
config_loader = ConfigLoader()
r_objects = config_loader.get_db_conn("Kvrocks_Objects")
HASH_DIR = config_loader.get_config_str('Directories', 'hash')
baseurl = config_loader.get_config_str("Notifications", "ail_domain")
config_loader = None
################################################################################
################################################################################
################################################################################
# # TODO: COMPLETE CLASS
class Decoded(AbstractDaterangeObject):
"""
AIL Decoded Object. (strings)
"""
def __init__(self, id):
super(Decoded, self).__init__('decoded', id)
# def get_ail_2_ail_payload(self):
# payload = {'raw': self.get_gzip_content(b64=True),
# 'compress': 'gzip'}
# return payload
# # WARNING: UNCLEAN DELETE /!\ TEST ONLY /!\
def delete(self):
# # TODO:
pass
def get_link(self, flask_context=False):
if flask_context:
url = url_for('correlation.show_correlation', type="decoded", id=self.id)
else:
url = f'{baseurl}/correlation/show?type={self.type}&id={self.id}'
return url
def get_svg_icon(self, mimetype=None):
if not mimetype:
mimetype = self.get_mimetype()
file_type = mimetype.split('/')[0]
if file_type == 'application':
icon = '\uf15b'
elif file_type == 'audio':
icon = '\uf1c7'
elif file_type == 'image':
icon = '\uf1c5'
elif file_type == 'text':
icon = '\uf15c'
else:
icon = '\uf249'
return {'style': 'fas', 'icon': icon, 'color': '#88CCEE', 'radius': 5}
'''
Return the estimated type of a given decoded item.
:param sha1_string: sha1_string
'''
def get_mimetype(self):
return r_objects.hget(f'meta:{self.type}:{self.id}', 'mime')
def set_mimetype(self, mimetype):
return r_objects.hset(f'meta:{self.type}:{self.id}', 'mime', mimetype)
def get_size(self):
return r_objects.hget(f'meta:{self.type}:{self.id}', 'size')
def set_size(self, size):
return r_objects.hset(f'meta:{self.type}:{self.id}', 'size', int(size))
def get_rel_path(self, mimetype=None):
if not mimetype:
mimetype = self.get_mimetype()
if not mimetype:
self.logger.warning(f'Decoded {self.id}: Empty mimetype')
return None
return os.path.join(HASH_DIR, mimetype, self.id[0:2], self.id)
def get_filepath(self, mimetype=None):
rel_path = self.get_rel_path(mimetype=mimetype)
if not rel_path:
return None
else:
return os.path.join(os.environ['AIL_HOME'], rel_path)
def get_content(self, mimetype=None, r_type='str'):
filepath = self.get_filepath(mimetype=mimetype)
if not filepath:
if r_type == 'str':
return ''
else:
return b''
if r_type == 'str':
with open(filepath, 'r') as f:
content = f.read()
return content
elif r_type == 'bytes':
with open(filepath, 'rb') as f:
content = f.read()
return content
elif r_type == 'bytesio':
with open(filepath, 'rb') as f:
content = BytesIO(f.read())
return content
def get_zip_content(self):
# mimetype = self.get_estimated_type()
zip_content = BytesIO()
with zipfile.ZipFile(zip_content, "w") as zf:
# TODO: Fix password
# zf.setpassword(b"infected")
zf.writestr(self.id, self.get_content(r_type='bytesio').getvalue())
zip_content.seek(0)
return zip_content
def get_misp_object(self):
obj_attrs = []
obj = MISPObject('file')
first_seen = self.get_first_seen()
last_seen = self.get_last_seen()
if first_seen:
obj.first_seen = first_seen
if last_seen:
obj.last_seen = last_seen
if not first_seen or not last_seen:
self.logger.warning(
f'Export error, None seen {self.type}:{self.subtype}:{self.id}, first={first_seen}, last={last_seen}')
obj_attrs.append(obj.add_attribute('sha1', value=self.id))
obj_attrs.append(obj.add_attribute('mimetype', value=self.get_mimetype()))
obj_attrs.append(obj.add_attribute('malware-sample', value=self.id, data=self.get_content(r_type='bytes')))
for obj_attr in obj_attrs:
for tag in self.get_tags():
obj_attr.add_tag(tag)
return obj
############################################################################
############################################################################
############################################################################
def get_decoders(self):
return ['base64', 'binary', 'hexadecimal']
def get_meta(self, options=set()):
meta = self._get_meta(options=options)
meta['id'] = self.id
if 'mimetype' in options:
meta['mimetype'] = self.get_mimetype()
if 'icon' in options:
if 'mimetype' in meta:
mimetype = meta['mimetype']
else:
mimetype = None
meta['icon'] = self.get_svg_icon(mimetype=mimetype)
if 'size' in options:
meta['size'] = self.get_size()
if 'tags' in options:
meta['tags'] = self.get_tags()
if 'vt' in options:
meta['vt'] = self.get_meta_vt()
return meta
def get_meta_vt(self):
link = r_objects.hget(f'meta:{self.type}:{self.id}', 'vt_link')
report = r_objects.hget(f'meta:{self.type}:{self.id}', 'vt_report')
if link or report:
return {'link': link, 'report': report}
else:
return {}
# TODO
def guess_mimetype(self, bytes_content):
# if not bytes_content:
# bytes_content = self.get_content()
return magic.from_buffer(bytes_content, mime=True)
# avoid counting the same hash multiple time on the same item
# except if different encoding
def is_seen_this_day(self, date):
return bool(self.get_nb_seen_by_date(Date.get_today_date_str()))
def save_file(self, b_content, mimetype): # TODO TEST ME
filepath = self.get_filepath(mimetype=mimetype)
if os.path.isfile(filepath):
# print('File already exist')
return False
# create dir
dirname = os.path.dirname(filepath)
if not os.path.exists(dirname):
os.makedirs(dirname)
with open(filepath, 'wb') as f:
f.write(b_content)
# create meta
self._add_create()
self.set_mimetype(mimetype)
self.set_size(os.path.getsize(filepath))
return True
def add(self, date, obj, algo_name, mimetype=None):
self._add(date, obj)
if not mimetype:
mimetype = self.get_mimetype()
is_new_decoded = r_objects.sadd(f'decoded:algo:{algo_name}:{date}', self.id) # filter by algo + sparkline
# uniq decoded in this algo today
if int(is_new_decoded):
r_objects.zincrby(f'decoded:algos:{date}', 1, algo_name) # pie chart
# mimetype -> decodeds
is_new_decoded = r_objects.sadd(f'decoded:mime:{mimetype}:{date}', self.id) # filter by mimetype
# uniq decoded in this mimetype today
if int(is_new_decoded):
r_objects.zincrby(f'decoded:mime:{date}', 1, mimetype) # TDO ADD OPTION TO CALC IF NOT EXISTS
r_objects.sadd('decoded:mimetypes', mimetype)
# algo + mimetype -> Decodeds
# -> sinter with r_objects.sunion(f'decoded:algo:{algo_name}:{date}')
# # TODO: ADD items
# def create(self, content, date, mimetype=None):
# if not mimetype:
# mimetype = self.guess_mimetype(content)
# self.save_file(content, mimetype)
#
#
# update_decoded_daterange(sha1_string, date_from)
# if date_from != date_to and date_to:
# update_decoded_daterange(sha1_string, date_to)
#######################################################################################
#######################################################################################
def is_vt_enabled(self):
return VT_ENABLED
def set_vt_report(self, report):
r_objects.hset(f'meta:{self.type}:{self.id}', 'vt_report', report)
def set_meta_vt(self, link, report):
r_objects.hset(f'meta:{self.type}:{self.id}', 'vt_link', link)
self.set_vt_report(report)
def refresh_vt_report(self):
params = {'apikey': VT_TOKEN, 'resource': self.id}
response = requests.get('https://www.virustotal.com/vtapi/v2/file/report', params=params)
if response.status_code == 200:
json_response = response.json()
response_code = json_response['response_code']
# report exist
if response_code == 1:
total = json_response['total']
detection = json_response['positives']
report = f'Detection {detection}/{total}'
# no report found
elif response_code == 0:
report = 'No report found'
# file in queue
elif response_code == -2:
report = 'In Queue - Refresh'
else:
report = 'Error - Unknown VT response'
self.set_vt_report(report)
print(json_response)
print(response_code)
print(report)
return report
elif response.status_code == 403:
return 'Virustotal key is incorrect (e.g. for public API not for virustotal intelligence), authentication failed'
elif response.status_code == 204:
return 'Rate Limited'
def send_to_vt(self):
files = {'file': (self.id, self.get_content())}
response = requests.post('https://www.virustotal.com/vtapi/v2/file/scan', files=files, params= {'apikey': VT_TOKEN})
json_response = response.json()
link = json_response['permalink'].split('analysis')[0] + 'analysis/'
self.set_meta_vt(link, 'Please Refresh')
############################################################################
def is_vt_enabled():
return VT_ENABLED
def get_all_decodeds():
return r_objects.smembers(f'decoded:all')
def get_algos():
return ['base64', 'binary', 'hexadecimal']
def get_all_mimetypes():
return r_objects.smembers('decoded:mimetypes')
def get_nb_decodeds_by_date(date):
return r_objects.zcard(f'decoded:date:{date}')
def get_decodeds_by_date(date):
return r_objects.zrange(f'decoded:date:{date}', 0, -1)
def get_algo_decodeds_by_date(date, algo):
return r_objects.smembers(f'decoded:algo:{algo}:{date}')
def get_mimetype_decodeds_by_date(date, mimetype):
return r_objects.smembers(f'decoded:mime:{mimetype}:{date}')
def get_algo_mimetype_decodeds_by_date(date, algo, mimetype):
return r_objects.sinter(f'decoded:algo:{algo}:{date}', f'decoded:mime:{mimetype}:{date}')
def get_decodeds_by_daterange(date_from, date_to, algo=None, mimetype=None):
decodeds = set()
if not algo and not mimetype:
for date in Date.substract_date(date_from, date_to):
decodeds = decodeds | set(get_decodeds_by_date(date))
elif algo and not mimetype:
for date in Date.substract_date(date_from, date_to):
decodeds = decodeds | get_algo_decodeds_by_date(date, algo)
elif mimetype and not algo:
for date in Date.substract_date(date_from, date_to):
decodeds = decodeds | get_mimetype_decodeds_by_date(date, mimetype)
elif algo and mimetype:
for date in Date.substract_date(date_from, date_to):
decodeds = decodeds | get_algo_mimetype_decodeds_by_date(date, algo, mimetype)
return decodeds
def sanitise_algo(algo):
if algo in get_algos():
return algo
else:
return None
def sanitise_mimetype(mimetype):
if mimetype:
if r_objects.sismember('decoded:mimetypes', mimetype):
return mimetype
else:
return None
def sanitize_decoded_name_to_search(name_to_search): # TODO FILTER NAME
return name_to_search
def search_decodeds_by_name(name_to_search, r_pos=False):
decodeds = {}
# for subtype in subtypes:
r_name = sanitize_decoded_name_to_search(name_to_search)
if not name_to_search or isinstance(r_name, dict):
return decodeds
r_name = re.compile(r_name)
for decoded_name in get_all_decodeds():
res = re.search(r_name, decoded_name)
if res:
decodeds[decoded_name] = {}
if r_pos:
decodeds[decoded_name]['hl-start'] = res.start()
decodeds[decoded_name]['hl-end'] = res.end()
return decodeds
############################################################################
def get_decodeds_dir():
decodeds_dir = os.path.join(os.environ['AIL_HOME'], HASH_DIR)
if not decodeds_dir.endswith("/"):
decodeds_dir = f"{decodeds_dir}/"
return decodeds_dir
# Generator
def get_nb_decodeds_objects(filters={}):
nb = 0
if 'mimetypes' in filters:
mimetypes = filters['mimetypes']
else:
mimetypes = get_all_mimetypes()
d_dir = get_decodeds_dir()
for mimetype in mimetypes:
for root, dirs, files in os.walk(os.path.join(d_dir, mimetype)):
nb += len(files)
return nb
def get_all_decodeds_objects(filters={}):
if 'mimetypes' in filters:
# TODO sanityze mimetype
mimetypes = filters['mimetypes']
else:
mimetypes = get_all_mimetypes()
mimetypes = sorted(mimetypes)
if filters.get('start'):
_, start_id = filters['start'].split(':', 1)
decoded = Decoded(start_id)
# remove sources
start_mimetype = decoded.get_mimetype()
i = 0
while start_mimetype and len(mimetypes) > i:
if mimetypes[i] == start_mimetype:
mimetypes = mimetypes[i:]
start_mimetype = None
i += 1
else:
start_id = None
d_dir = get_decodeds_dir()
for mimetype in mimetypes:
for root, dirs, files in os.walk(os.path.join(d_dir, mimetype)):
if start_id:
i = 0
while start_id and len(files) > i:
if files[i] == start_id:
files = files[i:]
start_id = None
i += 1
if i >= len(files):
files = []
for file in files:
yield Decoded(file)
############################################################################
def sanityze_decoder_names(decoder_name):
if decoder_name not in get_algos():
return None
else:
return decoder_name
def sanityze_mimetype(mimetype):
if mimetype == 'All types':
return None
elif not r_objects.sismember(f'decoded:mimetypes', mimetype):
return None
else:
return mimetype
# TODO
def pie_chart_mimetype_json(date_from, date_to, mimetype, decoder_name):
if mimetype:
all_mimetypes = [mimetype]
else:
all_mimetypes = get_all_mimetypes()
date_range = Date.substract_date(date_from, date_to)
for date in date_range:
for mimet in all_mimetypes:
pass
# TODO
def pie_chart_decoder_json(date_from, date_to, mimetype):
all_algos = get_algos()
date_range = Date.substract_date(date_from, date_to)
if not date_range:
date_range.append(Date.get_today_date_str())
nb_algos = {}
for date in date_range:
for algo_name in all_algos:
# if not mimetype:
nb = r_objects.zscore(f'decoded:algos:{date}', algo_name)
# TODO mimetype necoding per day
# else:
# nb = r_metadata.zscore(f'{algo_name}_type:{mimetype}', date)
if nb is None:
nb = 0
else:
nb = int(nb)
nb_algos[algo_name] = nb_algos.get(algo_name, 0) + nb
pie_chart = []
for algo_name in all_algos:
pie_chart.append({'name': algo_name, 'value': nb_algos[algo_name]})
return pie_chart
# TODO FILTER BY ALGO
def pie_chart_mimetype_json(date_from, date_to, algo):
date_range = Date.substract_date(date_from, date_to)
if not date_range:
date_range.append(Date.get_today_date_str())
mimetypes = {}
if len(date_range) == 1:
mimes = r_objects.zrange(f'decoded:mime:{date_range[0]}', 0, -1, withscores=True)
for t_mime in mimes:
mime, nb = t_mime
mimetypes[mime] = int(nb)
else:
mimetypes = {}
for date in date_range:
mimes = r_objects.zrange(f'decoded:mime:{date}', 0, -1, withscores=True)
for t_mime in mimes:
mime, nb = t_mime
mimetypes[mime] = mimetypes.get(mime, 0) + int(nb)
top5_mimes = sorted(mimetypes, key=mimetypes.get, reverse=True)[:5]
pie_chart = []
for mime in top5_mimes:
pie_chart.append({'name': mime, 'value': mimetypes[mime]})
return pie_chart
def barchart_range_json(date_from, date_to, mimetype=None):
date_range = Date.substract_date(date_from, date_to)
if not date_range:
date_range.append(Date.get_today_date_str())
barchart = []
if mimetype:
for date in date_range:
range_day = {'date': f'{date[0:4]}-{date[4:6]}-{date[6:8]}'}
nb_day = r_objects.scard(f'decoded:mime:{mimetype}:{date}')
range_day[mimetype] = nb_day
barchart.append(range_day)
else:
# algo by mimetype, date = mimetype
if len(date_range) == 1:
mimes = r_objects.zrange(f'decoded:mime:{date_range[0]}', 0, -1, withscores=True)
# TODO
# UNION
# f'decoded:algo:{algo_name}:{date}'
# f'decoded:mime:{mimetype}:{date}'
for t_mime in mimes:
mime, nb = t_mime
range_day = {'date': mime, 'mimetype': nb}
barchart.append(range_day)
# mimetypes by date
else:
mimetypes = set()
for date in date_range:
range_day = {'date': f'{date[0:4]}-{date[4:6]}-{date[6:8]}'}
mimes = r_objects.zrange(f'decoded:mime:{date}', 0, -1, withscores=True)
for t_mime in mimes:
mime, nb = t_mime
mimetypes.add(mime)
range_day[mime] = int(nb)
barchart.append(range_day)
if not mimetypes:
mimetypes.add('No Data')
for row in barchart:
for mime in mimetypes:
if mime not in row:
row[mime] = 0
return barchart
def graphline_json(decoded_id):
decoded = Decoded(decoded_id)
graphline = []
if decoded.exists():
nb_day = 30
for date in Date.get_previous_date_list(nb_day):
graphline.append({'date': f'{date[0:4]}-{date[4:6]}-{date[6:8]}', 'value': decoded.get_nb_seen_by_date(date)})
return graphline
def api_pie_chart_decoder_json(date_from, date_to, mimetype):
mimetype = sanityze_mimetype(mimetype)
date = Date.sanitise_date_range(date_from, date_to)
return pie_chart_decoder_json(date['date_from'], date['date_to'], mimetype)
def api_pie_chart_mimetype_json(date_from, date_to, algo):
algo = sanitise_algo(algo)
date = Date.sanitise_date_range(date_from, date_to)
return pie_chart_mimetype_json(date['date_from'], date['date_to'], algo)
def api_barchart_range_json(date_from, date_to, mimetype):
date = Date.sanitise_date_range(date_from, date_to)
if mimetype:
mimetype = sanityze_mimetype(mimetype)
return barchart_range_json(date['date_from'], date['date_to'], mimetype=mimetype)
def _delete_old_json_descriptor():
decodeds = []
hash_dir = os.path.join(os.environ['AIL_HOME'], HASH_DIR)
for root, dirs, files in os.walk(hash_dir):
for file in files:
if file.endswith('.json'):
decoded_path = f'{root}/{file}'
os.remove(decoded_path)
return decodeds
# TODO
def get_all_decodeds_files():
decodeds = []
hash_dir = os.path.join(os.environ['AIL_HOME'], HASH_DIR)
if not hash_dir.endswith("/"):
hash_dir = f"{hash_dir}/"
for root, dirs, files in os.walk(hash_dir):
for file in files:
# decoded_path = f'{root}{file}'
decodeds.append(file)
return decodeds
if __name__ == '__main__':
# name_to_search = '4d36'
# print(search_decodeds_by_name(name_to_search))
# filters = {'mimetypes': ['text/html']}
filters = {'start': ':1a005f82a4ae0940205c8fd81fd14838845696be'}
# filters = {}
gen = get_all_decodeds_objects(filters=filters)
for f in gen:
print(f)
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