d4-core/server/workers/workers_2/meta_types_modules/ja3-jl/ja3-jl.py

68 lines
2.1 KiB
Python
Executable File

#!/usr/bin/env python3
import os
import sys
import time
import json
import redis
import datetime
import hashlib
import binascii
import redis
import pdb
from meta_types_modules.MetaTypesDefault import MetaTypesDefault
class TypeHandler(MetaTypesDefault):
def __init__(self, uuid, json_file):
super().__init__(uuid, json_file)
self.set_rotate_file_mode(False)
def process_data(self, data):
self.reconstruct_data(data)
def handle_reconstructed_data(self, data):
decoded_data = data.decode()
self.set_last_time_saved(time.time())
self.set_last_saved_date(datetime.datetime.now().strftime("%Y%m%d%H%M%S"))
# Create folders
cert_save_dir = os.path.join(self.get_save_dir(), 'certs')
jsons_save_dir = os.path.join(self.get_save_dir(), 'jsons')
if not os.path.isdir(cert_save_dir):
os.makedirs(cert_save_dir)
if not os.path.isdir(jsons_save_dir):
os.makedirs(jsons_save_dir)
# Extract certificates from json
try:
mtjson = json.loads(decoded_data)
res = True
except Exception as e:
print(decoded_data)
res = False
if res:
#mtjson = json.loads(decoded_data)
for certificate in mtjson["Certificates"] or []:
cert = binascii.a2b_base64(certificate["Raw"])
# one could also load this cert with
# xcert = x509.load_der_x509_certificate(cert, default_backend())
m = hashlib.sha1()
m.update(cert)
cert_path = os.path.join(cert_save_dir, m.hexdigest()+'.crt')
# write unique certificate der file to disk
with open(cert_path, 'w+b') as c:
c.write(cert)
# write json file to disk
jsons_path = os.path.join(jsons_save_dir, mtjson["Timestamp"]+'.json')
with open(jsons_path, 'w') as j:
j.write(decoded_data)
# Send data to Analyszer
self.send_to_analyzers(jsons_path)
def test(self):
print('Class: ja3-jl')