72 lines
2.2 KiB
Python
72 lines
2.2 KiB
Python
#!/usr/bin/env python3
|
|
|
|
######
|
|
# TODO: DETECT DUPLICATE DATA
|
|
#####
|
|
|
|
import os
|
|
import pymisp
|
|
import tempfile
|
|
from pyaml import yaml
|
|
|
|
from opentaxii.signals import (
|
|
CONTENT_BLOCK_CREATED, INBOX_MESSAGE_CREATED
|
|
)
|
|
|
|
## CONFIG
|
|
if "OPENTAXII_CONFIG" in os.environ:
|
|
print("Using config from {}".format(os.environ["OPENTAXII_CONFIG"]))
|
|
CONFIG = yaml.load(open(os.environ["OPENTAXII_CONFIG"], "r"))
|
|
else:
|
|
print("Trying to use env variables...")
|
|
if "MISP_URL" in os.environ:
|
|
misp_url = os.environ["MISP_URL"]
|
|
else:
|
|
print("Unkown misp URL. Set OPENTAXII_CONFIG or MISP_URL.")
|
|
misp_url = "UNKNOWN"
|
|
if "MISP_API" in os.environ:
|
|
misp_api = os.environ["MISP_API"]
|
|
else:
|
|
print("Unknown misp API key. Set OPENTAXII_CONFIG or MISP_API.")
|
|
misp_api = "UNKNOWN"
|
|
|
|
CONFIG = {
|
|
"misp" : {
|
|
"url" : misp_url,
|
|
"api" : misp_api
|
|
}
|
|
}
|
|
|
|
MISP = pymisp.PyMISP(
|
|
CONFIG["misp"]["url"],
|
|
CONFIG["misp"]["api"],
|
|
ssl = CONFIG["misp"].get("verifySSL", True)
|
|
)
|
|
|
|
def post_stix(manager, content_block, collection_ids, service_id):
|
|
'''
|
|
Callback function for when our taxii server gets new data
|
|
Will convert it to a MISPEvent and push to the server
|
|
'''
|
|
|
|
# Load the package
|
|
package = pymisp.tools.stix.load_stix(content_block.content)
|
|
|
|
values = [x.value for x in package.attributes]
|
|
for attrib in values:
|
|
print("CHECKING {}".format(attrib))
|
|
search = MISP.search("attributes", values=str(attrib))
|
|
if search["response"] != []:
|
|
# This means we have it!
|
|
package.attributes.pop([x.value for x in package.attributes].index(attrib))
|
|
|
|
# Push the event to MISP
|
|
# TODO: There's probably a proper method to do this rather than json_full
|
|
# But I don't wanna read docs
|
|
if (len(package.attributes) > 0):
|
|
print(package.attributes[0].value)
|
|
MISP.add_event(package._json_full())
|
|
|
|
# Make TAXII call our push function whenever it gets new data
|
|
CONTENT_BLOCK_CREATED.connect(post_stix)
|