def test_create_bundle_invalid(indicator, malware, relationship):
with pytest.raises(ValueError) as excinfo:
stix2.Bundle(objects=[1])
assert excinfo.value.reason == "This property may only contain a dictionary or object"
with pytest.raises(ValueError) as excinfo:
stix2.Bundle(objects=[{}])
assert excinfo.value.reason == "This property may only contain a non-empty dictionary or object"
with pytest.raises(ValueError) as excinfo:
stix2.Bundle(objects=[{'type': 'bundle'}])
assert excinfo.value.reason == 'This property may not contain a Bundle object'
def test_custom_property_dict_in_bundled_object():
custom_identity = {
'type': 'identity',
'id': 'identity--311b2d2d-f010-5473-83ec-1edf84858f4c',
'created': '2015-12-21T19:59:11Z',
'name': 'John Smith',
'identity_class': 'individual',
'x_foo': 'bar',
}
with pytest.raises(stix2.exceptions.ExtraPropertiesError):
bundle = stix2.Bundle(custom_identity)
bundle = stix2.Bundle(custom_identity, allow_custom=True)
assert bundle.objects[0].x_foo == "bar"
assert '"x_foo": "bar"' in str(bundle)
def test_empty_bundle():
bundle = stix2.Bundle()
assert bundle.type == "bundle"
assert bundle.id.startswith("bundle--")
assert bundle.spec_version == "2.0"
assert bundle.objects is None
def test_bundle_id_must_start_with_bundle():
with pytest.raises(ValueError) as excinfo:
bundle = stix2.Bundle(id='my-prefix--')
assert str(
excinfo.value
) == "Invalid value for Bundle 'id': must start with 'bundle--'."
def test_bundle_with_wrong_spec_version():
with pytest.raises(ValueError) as excinfo:
bundle = stix2.Bundle(spec_version="1.2")
assert str(
excinfo.value
) == "Invalid value for Bundle 'spec_version': must equal '2.0'."
def test_bundle_with_wrong_type():
with pytest.raises(stix2.exceptions.InvalidValueError) as excinfo:
stix2.Bundle(type="not-a-bundle")
assert excinfo.value.cls == stix2.Bundle
assert excinfo.value.prop_name == "type"
assert excinfo.value.reason == "must equal 'bundle'."
assert str(excinfo.value) == "Invalid value for Bundle 'type': must equal 'bundle'."
def test_bundle_id_must_start_with_bundle():
with pytest.raises(stix2.exceptions.InvalidValueError) as excinfo:
stix2.Bundle(id='my-prefix--')
assert excinfo.value.cls == stix2.Bundle
assert excinfo.value.prop_name == "id"
assert excinfo.value.reason == "must start with 'bundle--'."
assert str(excinfo.value) == "Invalid value for Bundle 'id': must start with 'bundle--'."
def test_bundle_with_wrong_spec_version():
with pytest.raises(stix2.exceptions.InvalidValueError) as excinfo:
stix2.Bundle(spec_version="1.2")
assert excinfo.value.cls == stix2.Bundle
assert excinfo.value.prop_name == "spec_version"
assert excinfo.value.reason == "must equal '2.0'."
assert str(excinfo.value) == "Invalid value for Bundle 'spec_version': must equal '2.0'."
def test_empty_bundle():
bundle = stix2.Bundle()
assert bundle.type == "bundle"
assert bundle.id.startswith("bundle--")
assert bundle.spec_version == "2.0"
with pytest.raises(AttributeError):
assert bundle.objects
def test_custom_properties_object_in_bundled_object():
obj = stix2.Identity(name="John Smith",
identity_class="individual",
custom_properties={
"x_foo": "bar",
})
bundle = stix2.Bundle(obj, allow_custom=True)
assert bundle.objects[0].x_foo == "bar"
assert '"x_foo": "bar"' in str(bundle)
def test_custom_property_in_bundled_object():
identity = stix2.Identity(
name="John Smith",
identity_class="individual",
x_foo="bar",
allow_custom=True,
)
bundle = stix2.Bundle(identity, allow_custom=True)
assert bundle.objects[0].x_foo == "bar"
assert '"x_foo": "bar"' in str(bundle)
def test_custom_properties_dict_in_bundled_object():
custom_identity = {
'type': 'identity',
'id': 'identity--311b2d2d-f010-5473-83ec-1edf84858f4c',
'created': '2015-12-21T19:59:11Z',
'name': 'John Smith',
'identity_class': 'individual',
'custom_properties': {
'x_foo': 'bar',
},
}
bundle = stix2.Bundle(custom_identity)
assert bundle.objects[0].x_foo == "bar"
assert '"x_foo": "bar"' in str(bundle)
def ExportProject():
items = filestoarr2("alph")
if not items:
tk.messagebox.showwarning(
"Error",
"Current project seems empty. There is nothing to export.")
return
bpath = tk.filedialog.asksaveasfilename(
title="Export entire project into a STIX2 Bundle file.",
defaultextension=".json",
filetypes=[("json file", "*.json")])
if bpath:
bundle = stix2.Bundle(items)
file = open(bpath, "w")
file.write(str(bundle))
file.close()
tk.messagebox.showinfo(
"Success",
"Current project was exported into a STIX2 Bundle file.")
import stix2
indicator = stix2.Indicator(
id="indicator--d81f86b9-975b-4c0b-875e-810c5ad45a4f",
created="2014-06-29T13:49:37.079Z",
modified="2014-06-29T13:49:37.079Z",
name="Malicious site hosting downloader",
description=
"This organized threat actor group operates to create profit from all types of crime.",
labels=["malicious-activity"],
pattern="[url:value = 'http://x4z9arb.cn/4712/']",
valid_from="2014-06-29T13:49:37.079000Z")
foothold = stix2.KillChainPhase(
kill_chain_name="mandiant-attack-lifecycle-model",
phase_name="establish-foothold")
malware = stix2.Malware(
id="malware--162d917e-766f-4611-b5d6-652791454fca",
created="2014-06-30T09:15:17.182Z",
modified="2014-06-30T09:15:17.182Z",
name="x4z9arb backdoor",
labels=["backdoor", "remote-access-trojan"],
description=
"This malware attempts to download remote files after establishing a foothold as a backdoor.",
kill_chain_phases=[foothold])
relationship = stix2.Relationship(indicator, 'indicates', malware)
bundle = stix2.Bundle(objects=[indicator, malware, relationship])
def test_create_bundle_with_positional_args(indicator, malware, relationship):
bundle = stix2.Bundle(indicator, malware, relationship)
assert str(bundle) == EXPECTED_BUNDLE
def test_create_bundle(indicator, malware, relationship):
bundle = stix2.Bundle(objects=[indicator, malware, relationship])
assert str(bundle) == EXPECTED_BUNDLE
def run(self):
self.helper.log_info("Fetching data CYBERCRIME-TRACKER.NET...")
tlp = self.helper.api.marking_definition.read(
filters=[
{"key": "definition", "values": "TLP:{}".format(self.connector_tlp)}
]
)
while True:
try:
# Get the current timestamp and check
timestamp = int(time.time())
current_state = self.helper.get_state()
if current_state is not None and "last_run" in current_state:
last_run = current_state["last_run"]
self.helper.log_info(
"Connector last run: {}".format(
datetime.datetime.utcfromtimestamp(last_run).strftime(
"%Y-%m-%d %H:%M:%S"
)
)
)
else:
last_run = None
self.helper.log_info("Connector has never run")
# Run if it is the first time or we are past the interval
if last_run is None or ((timestamp - last_run) > self.interval):
self.helper.log_info("Connector will run!")
now = datetime.datetime.utcfromtimestamp(timestamp)
friendly_name = "MITRE run @ " + now.strftime("%Y-%m-%d %H:%M:%S")
work_id = self.helper.api.work.initiate_work(
self.helper.connect_id, friendly_name
)
# Get Feed Content
feed = feedparser.parse(self.feed_url)
self.helper.log_info(
"Found: {} entries.".format(len(feed["entries"]))
)
self.feed_summary = {
"Source": feed["feed"]["title"],
"Date": self._time_to_datetime(
feed["feed"]["published_parsed"]
),
"Details": feed["feed"]["subtitle"],
"Link": feed["feed"]["link"],
}
# Create the bundle
bundle_objects = list()
organization = stix2.Identity(
id=OpenCTIStix2Utils.generate_random_stix_id("identity"),
name="CYBERCRIME-TRACKER.NET",
identity_class="organization",
description="Tracker collecting and sharing daily updates of C2 IPs/Urls. http://cybercrime-tracker.net",
)
bundle_objects.append(organization)
for entry in feed["entries"]:
parsed_entry = self.parse_feed_entry(entry)
external_reference = stix2.ExternalReference(
source_name="{}".format(self.feed_summary["Source"]),
url=parsed_entry["ext_link"],
)
indicator_pattern = self.gen_indicator_pattern(parsed_entry)
malware = stix2.Malware(
id=OpenCTIStix2Utils.generate_random_stix_id("malware"),
is_family=True,
name=parsed_entry["type"],
description="{} malware.".format(parsed_entry["type"]),
)
bundle_objects.append(malware)
indicator = None
if self.create_indicators:
indicator = stix2.Indicator(
id=OpenCTIStix2Utils.generate_random_stix_id(
"indicator"
),
name=parsed_entry["url"],
description="C2 URL for: {}".format(
parsed_entry["type"]
),
labels=["C2 Server"],
pattern_type="stix",
pattern=indicator_pattern,
valid_from=parsed_entry["date"],
created=parsed_entry["date"],
modified=parsed_entry["date"],
created_by_ref=organization.id,
object_marking_refs=[tlp["standard_id"]],
external_references=[external_reference],
custom_properties={
"x_opencti_main_observable_type": "Url"
},
)
bundle_objects.append(indicator)
relation = stix2.Relationship(
id=OpenCTIStix2Utils.generate_random_stix_id(
"relationship"
),
source_ref=indicator.id,
target_ref=malware.id,
relationship_type="indicates",
start_time=self._time_to_datetime(
entry["published_parsed"]
),
stop_time=self._time_to_datetime(
entry["published_parsed"]
)
+ datetime.timedelta(0, 3),
description="URLs associated to: "
+ parsed_entry["type"],
confidence=self.confidence_level,
created_by_ref=organization.id,
object_marking_refs=[tlp["standard_id"]],
created=parsed_entry["date"],
modified=parsed_entry["date"],
external_references=[external_reference],
)
bundle_objects.append(relation)
if self.create_observables:
observable_url = SimpleObservable(
id=OpenCTIStix2Utils.generate_random_stix_id(
"x-opencti-simple-observable"
),
key="Url.value",
labels=["C2 Server"],
value=parsed_entry["url"],
created_by_ref=organization.id,
object_marking_refs=[tlp["standard_id"]],
external_references=[external_reference],
)
bundle_objects.append(observable_url)
observable_ip = SimpleObservable(
id=OpenCTIStix2Utils.generate_random_stix_id(
"x-opencti-simple-observable"
),
key="IPv4-Addr.value",
labels=["C2 Server"],
value=parsed_entry["ip"],
created_by_ref=organization.id,
object_marking_refs=[tlp["standard_id"]],
external_references=[external_reference],
)
bundle_objects.append(observable_ip)
observable_domain = None
if "domain" in parsed_entry.keys():
observable_domain = SimpleObservable(
id=OpenCTIStix2Utils.generate_random_stix_id(
"x-opencti-simple-observable"
),
key="Domain-Name.value",
labels=["C2 Server"],
value=parsed_entry["domain"],
created_by_ref=organization.id,
object_marking_refs=[tlp["standard_id"]],
external_references=[external_reference],
)
bundle_objects.append(observable_domain)
if indicator is not None:
relationship_1 = stix2.Relationship(
id=OpenCTIStix2Utils.generate_random_stix_id(
"relationship"
),
relationship_type="based-on",
created_by_ref=organization.id,
source_ref=indicator.id,
target_ref=observable_url.id,
)
bundle_objects.append(relationship_1)
relationship_2 = stix2.Relationship(
id=OpenCTIStix2Utils.generate_random_stix_id(
"relationship"
),
relationship_type="based-on",
created_by_ref=organization.id,
source_ref=indicator.id,
target_ref=observable_ip.id,
)
bundle_objects.append(relationship_2)
if observable_domain is not None:
relationship_3 = stix2.Relationship(
id=OpenCTIStix2Utils.generate_random_stix_id(
"relationship"
),
relationship_type="based-on",
created_by_ref=organization.id,
source_ref=indicator.id,
target_ref=observable_domain.id,
)
bundle_objects.append(relationship_3)
# create stix bundle
bundle = stix2.Bundle(objects=bundle_objects)
# send data
self.helper.send_stix2_bundle(
bundle=bundle.serialize(),
update=self.update_existing_data,
work_id=work_id,
)
# Store the current timestamp as a last run
message = (
"Connector successfully run, storing last_run as: {}".format(
str(timestamp)
)
)
self.helper.log_info(message)
self.helper.set_state({"last_run": timestamp})
self.helper.api.work.to_processed(work_id, message)
self.helper.log_info(
"Last_run stored, next run in: {} seconds.".format(
str(round(self.interval, 2))
)
)
time.sleep(60)
else:
new_interval = self.interval - (timestamp - last_run)
self.helper.log_info(
"Connector will not run. \
Next run in: {} seconds.".format(
str(round(new_interval, 2))
)
)
time.sleep(60)
except (KeyboardInterrupt, SystemExit):
self.helper.log_info("Connector stop")
exit(0)
except Exception as e:
self.helper.log_error(str(e))
time.sleep(60)
def test_custom_property_object_in_bundled_object():
bundle = stix2.Bundle(IDENTITY_CUSTOM_PROP, allow_custom=True)
assert bundle.objects[0].x_foo == "bar"
assert '"x_foo": "bar"' in str(bundle)
def test_bundle_with_wrong_type():
with pytest.raises(ValueError) as excinfo:
bundle = stix2.Bundle(type="not-a-bundle")
assert str(excinfo.value
) == "Invalid value for Bundle 'type': must equal 'bundle'."
def csvtostix(file_type, file_name):
count = 0
data = {}
labels = ""
maldesc = ''
malname = ''
tot_file_path = ''
url = []
domain = []
filename = []
ip = []
md5 = []
registry = []
email = []
indlist = []
rellist = []
sha1 = []
sha256 = []
m = datetime.datetime.now()
c = m.strftime("%Y-%m-%d %H:%M:%S.{}".format(str(m).split('.')[1][:3]) +
"Z")
m = m.strftime("%Y-%m-%d %H:%M:%S.{}".format(str(m).split('.')[1][:3]) +
"Z")
malware = stix2.Malware(created=c,
modified=m,
name=malname,
labels=labels,
description=maldesc)
try:
each_data = []
if file_type == "-f":
each_data = []
with open(file_name, "r") as f:
csv_reader = csv.reader(f, delimiter=',')
fields = csv_reader.next()
tab = -1
for i in fields:
#print(i)
samp = []
tab += 1
with open(file_name, "r") as f:
csv_reader = csv.reader(f, delimiter=',')
for lines in csv_reader:
if lines[tab].strip():
if lines[tab] not in fields:
samp.append(lines[tab].strip())
data[i] = samp
#print(data)
elif file_type == "-F":
each_data = []
indiv_data = []
if os.path.exists(file_name):
for eachfile in os.walk(file_name):
for each_file in eachfile[2]:
with open(file_name + '/' + each_file, "r") as f:
csv_reader = csv.reader(f, delimiter=',')
fields = csv_reader.next()
tab = -1
for i in fields:
samp1 = []
tab += 1
with open(file_name, "r") as f:
csv_reader = csv.reader(f, delimiter=',')
for lines in csv_reader:
if lines[tab].strip():
if lines[tab] not in fields:
samp1.append(
lines[tab].strip())
data[i].extend(samp1)
else:
print(
"please enter a valid folder containing json files with valid folder path"
)
print(
"Usage : python csvtostix.py <-f>/<-F> file_name/folder_name"
)
print(" Example : python csvtostix.py -f APT34.csv")
print(
" Example : python csvtostix.py -F /home/user/Desktop/IOC_files/"
)
print(
"Submit the folder, which does not contain any subfolders")
sys.exit()
else:
print(
"Please enter the command as -f (for file) or -F (for folder) followed by File name or Folder name with sapce"
)
print(
"Usage : python csvtostix.py <-f>/<-F> file_name/folder_name")
print(" Example : python csvtostix.py -f APT34.csv")
print(
" Example : python csvtostix.py -F /home/user/Desktop/IOC_files/"
)
sys.exit()
#print(data)
if data:
domain = data.get("Domain", "")
filepath1 = data.get("FilePath", "")
sha1 = data.get("SHA1", "")
registry = data.get("RegistryPath", "")
filename = data.get("FileName", "")
url = data.get("URL", "")
ip = data.get("IPAddress", "")
filename1 = data.get("FileName", "")
#filename = filename1 + filepath1
filename = filename1
sha256 = data.get("SHA256", "")
md5 = data.get("MD5", "")
for each_ip in ip:
indicator = stix2.Indicator(created=c,
modified=m,
name='IP',
description=" ",
labels=["malicious-activity"],
pattern="[ipv4-addr:value = '" +
each_ip.strip() + "']",
valid_from=c)
if indicator not in indlist:
indlist.append(indicator)
for each_url in url:
indicator = stix2.Indicator(
created=c,
modified=m,
name='url',
description=" ",
labels=["malicious-activity"],
pattern="[url:value = 'http://" +
each_url.split('//')[-1].split('/')[0].strip("'") + "'" +
"]",
valid_from=c)
if indicator not in indlist:
indlist.append(indicator)
for each_domain in domain:
indicator = stix2.Indicator(
created=c,
modified=m,
name='domain-name',
description=" ",
labels=["malicious-activity"],
pattern="[domain-name:value = '" +
each_domain.split('//')[-1].split('/')[0].strip("'") +
"']",
valid_from=c)
if indicator not in indlist:
indlist.append(indicator)
for each_filename in filename:
tot_file_path = ''
exact_name = each_filename.split('\\')
split_path_name = each_filename.split('\\')[0:-1]
if split_path_name:
for path in split_path_name:
tot_file_path = tot_file_path + '\\\\' + path
if len(exact_name) > 1:
indicator = stix2.Indicator(
created=c,
modified=m,
name='file',
description=" ",
labels=["malicious-activity"],
#pattern="[file:name = '" + each_filename.split('\\')[-1].strip("'") + "']",
pattern="[file:name = '" +
each_filename.split('\\')[-1].strip("'") +
"' AND file:parent_directory_ref.path = '" +
tot_file_path + "']",
valid_from=c)
else:
indicator = stix2.Indicator(created=c,
modified=m,
name='file',
description=" ",
labels=["malicious-activity"],
pattern="[file:name = '" +
each_filename.strip("'") +
"']",
valid_from=c)
if indicator not in indlist:
indlist.append(indicator)
for each_registry in registry:
each_registry = each_registry.replace("\\", "\\\\")
indicator = stix2.Indicator(
created=c,
modified=m,
name='win-registry-key',
description=" ",
labels=["malicious-activity"],
pattern="[windows-registry-key:key = '" + each_registry +
"']",
valid_from=c)
if indicator not in indlist:
indlist.append(indicator)
for each_md5 in md5:
each_md5 = re.sub(r'[^A-Za-z0-9]+', '', each_md5)
indicator = stix2.Indicator(created=c,
modified=m,
name='MD5',
description=" ",
labels=["malicious-activity"],
pattern="[file:hashes.md5 = '" +
each_md5.strip() + "']",
valid_from=c)
if indicator not in indlist:
indlist.append(indicator)
for each_sha1 in sha1:
each_sha1 = re.sub(r'[^A-Za-z0-9]+', '', each_sha1)
indicator = stix2.Indicator(
created=c,
modified=m,
name='MD5',
description=" ",
labels=["malicious-activity"],
pattern="[file:hashes.'SHA-1' = '" + each_sha1.strip() +
"']",
valid_from=c)
if indicator not in indlist:
indlist.append(indicator)
for each_sha256 in sha256:
each_sha256 = re.sub(r'[^A-Za-z0-9]+', '', each_sha256)
indicator = stix2.Indicator(
created=c,
modified=m,
name='MD5',
description=" ",
labels=["malicious-activity"],
pattern="[file:hashes.'SHA-256' = '" +
each_sha256.strip() + "']",
valid_from=c)
if indicator not in indlist:
indlist.append(indicator)
print(len(indlist))
obj_range = int((len(indlist) / 50)) + 1
ind1 = 0
ind2 = 50
print(obj_range)
for num in range(obj_range):
new_list = []
if (ind2 - ind1) != 50:
new_list = indlist[ind1:]
else:
new_list = indlist[ind1:ind2]
for ind in new_list:
print(ind)
count += 1
val = 'relationship' + str(count)
val = stix2.Relationship(ind, 'indicates', malware)
rellist.append(val)
IOC = stix2.Bundle(objects=[malware] + rellist + new_list)
if IOC:
print(type(num))
print(num)
num = str(num)
if sys.argv[1].split("/")[-1]:
with open(
sys.argv[1].split("/")[-1].split(".")[0] +
'_' + str(int(num) + 1) + '.ioc', 'w') as fp:
fp.write(json.dumps(json.loads(str(IOC)),
indent=2))
fp.close()
elif sys.argv[1].split("/")[-2]:
with open(
sys.argv[1].split("/")[-2].split(".")[0] +
'_' + str(int(num) + 1) + '+.ioc', 'w') as fp:
fp.write(json.dumps(json.loads(str(IOC)),
indent=2))
fp.close()
else:
with open(
sys.argv[1].split("/")[0].split(".")[0] + '_' +
str(int(num) + 1) + '+.ioc', 'w') as fp:
fp.write(json.dumps(json.loads(str(IOC)),
indent=2))
fp.close()
else:
pass
ind1 = ind1 + 50
ind2 = ind2 + 50
rellist = []
else:
print(
"please enter a valid file/folder containing json files containing indicator data"
)
print(
"Usage : python csvtostix.py <-f>/<-F> file_name/folder_name")
print(" Example : python csvtostix.py -f APT34.csv")
print(
" Example : python csvtostix.py -F /home/user/Desktop/IOC_files/"
)
except IOError as err:
print(
"please enter a valid folder containing csv files with valid folder path"
)
print("Usage : python csvtostix.py <-f>/<-F> file_name/folder_name")
print(" Example : python csvtostix.py -f APT34.csv")
print(
" Example : python csvtostix.py -F /home/user/Desktop/IOC_files/")
print("Submit the folder, which does not contain any subfolders")
except Exception as e:
print(traceback.format_exc())
print(e)
return
contact_information="*****@*****.**",
labels=["Cyber Security"],
sectors=["technology"]
)
indicator = stix2.Indicator(
id="indicator--9299f726-ce06-492e-8472-2b52ccb53191",
created_by_ref="identity--39012926-a052-44c4-ae48-caaf4a10ee6e",
created="2017-02-27T13:57:10.515Z",
modified="2017-02-27T13:57:10.515Z",
name="Malicious URL",
description="This URL is potentially associated with malicious activity and is listed on several blacklist sites.",
labels=["malicious-activity"],
pattern="[url:value = 'http://paypa1.banking.com']",
valid_from="2015-06-29T09:10:15.915Z"
)
sighting = stix2.Sighting(
id="sighting--8356e820-8080-4692-aa91-ecbe94006833",
created_by_ref="identity--5206ba14-478f-4b0b-9a48-395f690c20a2",
created="2017-02-28T19:37:11.213Z",
modified="2017-02-28T19:37:11.213Z",
first_seen="2017-02-27T21:37:11.213Z",
last_seen="2017-02-27T21:37:11.213Z",
count=1,
sighting_of_ref="indicator--9299f726-ce06-492e-8472-2b52ccb53191",
where_sighted_refs=["identity--5206ba14-478f-4b0b-9a48-395f690c20a2"]
)
bundle = stix2.Bundle(objects=[indicator, identityAlpha, identityBeta, sighting])
def generate_report():
istihbarat_no = 0
cyber_threads_infos = []
attack_patterns = []
sti_list = []
records = get_all_records(settings.traffic_table_name,
settings.prediction_column_name)
unique_records = unique_lists_from_multidimensional_array(records)
identity = stiv.Identity(
name=
"Veri Madenciligi Temelli Siber Tehdit Istihbarati Tez Calismasi Onerilen Sistemin Uygulamasi - Suleyman Muhammed ARIKAN",
identity_class="individual")
sti_list.append(identity)
predictions = [record[1] for record in unique_records]
unique_predictions = set(predictions)
for attack in unique_predictions:
attact_pattern = stiv.AttackPattern(name=attack,
created_by_ref=identity.id)
attack_patterns.append(attact_pattern)
sti_list.append(attact_pattern)
cyber_threads_infos.append(
"intelligence_id-prediction-source_host-source_port-destination_port-protocol"
+ "\n")
for record in records:
if str(record[1]) != settings.unknown_class_value:
cyber_thread_info = str(record[1]) + "-" + str(
record[5]) + "-" + str(int(float(record[3]))) + "-" + str(
int(float(record[4]))) + "-" + settings.protocols_list[
int(record[8]) - 1] + "\n"
cyber_threads_infos.append(cyber_thread_info)
istihbarat_no = istihbarat_no + 1
indicator_name = str(
istihbarat_no) + " numaralı istihbarat - " + str(record[5])
indicator_label = ["malicious-activity"]
indicator_pattern = "[network-traffic:src_ref.type = 'ipv4-addr' AND "
indicator_pattern = indicator_pattern + "network-traffic:src_ref.value = '" + str(
record[5]) + "' AND "
indicator_pattern = indicator_pattern + "network-traffic:src_port = " + str(
int(float(record[3]))) + " AND "
indicator_pattern = indicator_pattern + "network-traffic:dst_port = " + str(
int(float(record[4]))) + " AND "
indicator_pattern = indicator_pattern + "network-traffic:protocols[*] = '" + settings.protocols_list[
int(record[8]) - 1] + "']"
indicator = stiv.Indicator(name=indicator_name,
labels=indicator_label,
pattern=indicator_pattern,
created_by_ref=identity.id)
sti_list.append(indicator)
attack_pattern = get_attack_pattern(attack_patterns,
str(record[1]))
relationship = stiv.Relationship(relationship_type='indicates',
source_ref=indicator.id,
target_ref=attack_pattern.id)
sti_list.append(relationship)
stiv_bundle = stiv.Bundle(sti_list)
file_name = datetime.datetime.now().strftime("%Y-%m-%d-%H-%M-%S-%f")
fo = open("raporlar/" + file_name + ".txt", "x")
istihbarat_no = 0
for cti in cyber_threads_infos:
if (istihbarat_no != 0):
cti = str(istihbarat_no) + "-" + cti
fo.write(cti)
istihbarat_no = istihbarat_no + 1
fo.close()
fo_stiv = open("raporlar/" + file_name + ".json", "x")
fo_stiv.write(stiv_bundle.serialize())
fo_stiv.close()
return file_name
def filestobundle(): #prepei kai logika 8a exoume idi chdir()
items = []
for folder in getFolderArray():
for file in getFilesJsonExt(folder):
items.append(stix2.parse(filetoitem(folder + "/" + file)))
return stix2.Bundle(items), items
def test_create_bundle_with_arg_listarg_and_kwarg(indicator, malware,
relationship):
bundle = stix2.Bundle([indicator], malware, objects=[relationship])
assert str(bundle) == EXPECTED_BUNDLE
def test_create_bundle2(indicator, malware, relationship):
bundle = stix2.Bundle(objects=[indicator, malware, relationship])
assert json.loads(bundle.serialize()) == EXPECTED_BUNDLE_DICT
def test_create_bundle1(indicator, malware, relationship):
bundle = stix2.Bundle(objects=[indicator, malware, relationship])
assert str(bundle) == EXPECTED_BUNDLE
assert bundle.serialize(pretty=True) == EXPECTED_BUNDLE
malware = stix2.Malware(id="malware--d1c612bc-146f-4b65-b7b0-9a54a14150a4",
created="2015-04-23T11:12:34.760Z",
modified="2015-04-23T11:12:34.760Z",
name="Poison Ivy Variant d1c6",
labels=["remote-access-trojan"],
kill_chain_phases=[init_comp])
ref = stix2.ExternalReference(
source_name="capec",
description="phishing",
url="https://capec.mitre.org/data/definitions/98.html",
external_id="CAPEC-98")
attack_pattern = stix2.AttackPattern(
id="attack-pattern--8ac90ff3-ecf8-4835-95b8-6aea6a623df5",
created="2015-05-07T14:22:14.760Z",
modified="2015-05-07T14:22:14.760Z",
name="Phishing",
description="Spear phishing used as a delivery mechanism for malware.",
kill_chain_phases=[init_comp],
external_references=[ref])
relationship1 = stix2.Relationship(threat_actor, 'uses', malware)
relationship2 = stix2.Relationship(threat_actor, 'uses', attack_pattern)
relationship3 = stix2.Relationship(threat_actor, 'attributed-to', identity)
bundle = stix2.Bundle(objects=[
threat_actor, malware, attack_pattern, identity, relationship1,
relationship2, relationship3
])
import stix2
threat_actor = stix2.ThreatActor(
id="threat-actor--dfaa8d77-07e2-4e28-b2c8-92e9f7b04428",
created="2014-11-19T23:39:03.893Z",
modified="2014-11-19T23:39:03.893Z",
name="Disco Team Threat Actor Group",
description=
"This organized threat actor group operates to create profit from all types of crime.",
labels=["crime-syndicate"],
aliases=["Equipo del Discoteca"],
roles=["agent"],
goals=["Steal Credit Card Information"],
sophistication="expert",
resource_level="organization",
primary_motivation="personal-gain")
identity = stix2.Identity(
id="identity--733c5838-34d9-4fbf-949c-62aba761184c",
created="2016-08-23T18:05:49.307Z",
modified="2016-08-23T18:05:49.307Z",
name="Disco Team",
description=
"Disco Team is the name of an organized threat actor crime-syndicate.",
identity_class="organization",
contact_information="*****@*****.**")
relationship = stix2.Relationship(threat_actor, 'attributed-to', identity)
bundle = stix2.Bundle(objects=[threat_actor, identity, relationship])
def fetch_and_send(self):
timestamp = int(time.time())
now = datetime.utcfromtimestamp(timestamp)
friendly_name = "Cyber Threat Coalition run @ " + now.strftime(
"%Y-%m-%d %H:%M:%S"
)
work_id = self.helper.api.work.initiate_work(
self.helper.connect_id, friendly_name
)
bundle_objects = list()
# create an identity for the coalition team
organization = stix2.Identity(
id=OpenCTIStix2Utils.generate_random_stix_id("identity"),
name="Cyber Threat Coalition Team",
identity_class="organization",
description="Team of Experts collecting and sharing pandemic related "
"cyber threat intelligence during the COVID-19 crisis time",
)
# add organization in bundle
bundle_objects.append(organization)
report_object_refs = list()
for collection in ["domain", "ip", "url", "hash"]:
# fetch backlist
url = self.cyber_threat_coalition_base_url + "/" + str(collection) + ".txt"
response = requests.get(url=url)
if response.status_code != 200:
raise Exception(
"Unable to fetch {0} blacklist, server returned status: {1}",
collection,
response.status_code,
)
pattern_type = "stix"
labels = ["COVID-19", "malicious-activity"]
# parse content
for data in response.iter_lines(decode_unicode=True):
observable_type = None
observable_resolver = None
if data and not data.startswith("#"):
if collection == "domain":
observable_resolver = "Domain-Name"
observable_type = "Domain-Name"
elif collection == "ip":
observable_resolver = "IPv4-Addr"
observable_type = "IPv4-Addr"
elif collection == "url":
observable_resolver = "Url"
observable_type = "Url"
data = urllib.parse.quote(data, "/:")
elif collection == "hash":
observable_resolver = self.get_hash_type()
observable_type = "File"
indicator = None
if observable_resolver is None or observable_type is None:
return
if self.cyber_threat_coalition_create_indicators:
indicator = stix2.Indicator(
id=OpenCTIStix2Utils.generate_random_stix_id("indicator"),
name=data,
pattern_type=pattern_type,
pattern=self._INDICATOR_PATTERN[observable_resolver].format(
data
),
labels=labels,
created_by_ref=organization,
object_marking_refs=[stix2.TLP_WHITE],
custom_properties={
"x_opencti_main_observable_type": observable_type,
},
)
bundle_objects.append(indicator)
report_object_refs.append(indicator["id"])
if self.cyber_threat_coalition_create_observables:
observable = SimpleObservable(
id=OpenCTIStix2Utils.generate_random_stix_id(
"x-opencti-simple-observable"
),
key=observable_type
+ "."
+ ".".join(self._OBSERVABLE_PATH[observable_resolver]),
value=data,
labels=labels,
created_by_ref=organization,
object_marking_refs=[stix2.TLP_WHITE],
)
bundle_objects.append(observable)
report_object_refs.append(observable["id"])
if indicator is not None:
relationship = stix2.Relationship(
id=OpenCTIStix2Utils.generate_random_stix_id(
"relationship"
),
relationship_type="based-on",
created_by_ref=organization,
source_ref=indicator.id,
target_ref=observable.id,
)
bundle_objects.append(relationship)
report_object_refs.append(relationship["id"])
# create a global threat report
report_uuid = "report--552b3ae6-8522-409d-8b72-a739bc1926aa"
report_external_reference = stix2.ExternalReference(
source_name="Cyber Threat Coalition",
url="https://www.cyberthreatcoalition.org",
external_id="COVID19-CTC",
)
if report_object_refs:
stix_report = stix2.Report(
id=report_uuid,
name="COVID-19 Cyber Threat Coalition (CTC) BlackList",
type="report",
description="This report represents the whole COVID-19 CTC blacklist.",
published=datetime.utcnow().strftime("%Y-%m-%dT%H:%M:%SZ"),
created_by_ref=organization,
object_marking_refs=[stix2.TLP_WHITE],
labels=labels,
external_references=[report_external_reference],
object_refs=report_object_refs,
)
# add report in bundle
bundle_objects.append(stix_report)
# create stix bundle
bundle = stix2.Bundle(objects=bundle_objects)
# send data
self.helper.send_stix2_bundle(
bundle=bundle.serialize(), update=self.update_existing_data, work_id=work_id
)
return work_id
def process_reports(self, reports):
if reports is None:
printer.error("No results")
return
for report in reports:
name = report["name"]
id = report["id"]
stix2_objects = []
stix2_object_refs = []
# FFS AV, consistency!
if 'tlp' in report:
tlp_id = REF_TLPS[report['tlp'].upper()]
elif 'TLP' in report:
tlp_id = REF_TLPS[report['TLP'].upper()]
else:
tlp_id = REF_TLPS['WHITE']
sectors = report['industries']
if sectors:
unmatched_sectors = []
added_sector = False
for sector in [html.unescape(x.upper()) for x in sectors]:
sector_name = None
sector_id = None
if sector in SECTOR_MAPPINGS:
# sector_ids.append(self.octi_sectors[SECTOR_MAPPINGS[sector]])
sector_name = SECTOR_MAPPINGS[sector]
try:
sector_id = self.octi_sectors[
SECTOR_MAPPINGS[sector]]
except Exception as e:
printer.error(e)
continue
else:
printer.debug(f"Looking for sector {sector}")
match = difflib.get_close_matches(
sector, self.octi_sectors.keys(), 1)
if not len(match):
printer.error(
f"Unable to determine a matching sector for {sector}"
)
unmatched_sectors.append(sector)
continue
# sector_ids.append(self.octi_sectors[match[0]])
sector_name = match[0]
sector_id = self.octi_sectors[match[0]]
if sector_name is not None:
s = stix2.Identity(id=sector_id,
name=sector_name,
identity_class='class',
custom_properties={
'x_opencti_identity_type':
'sector'
})
printer.debug(f"Adding sector {sector_name}")
stix2_objects.append(s)
stix2_object_refs.append(s)
added_sector = True
if not added_sector:
printer.warn("Adding 'UNKNOWN' placeholder sector")
s = stix2.Identity(id=self.octi_sectors["UNKNOWN"],
name="Unknown",
identity_class='class',
custom_properties={
'x_opencti_identity_type': 'sector'
})
stix2_objects.append(s)
stix2_object_refs.append(s)
description = report['description']
if len(unmatched_sectors):
description = description + "\n\n###\nUnable to find a match for the following sectors, " \
"please review manually:\n - " + '\n - '.join(unmatched_sectors)
printer.info(f"Generating STIX2 for {name} ({id})")
author = stix2.Identity(name=report['author_name'],
identity_class='organization')
stix2_objects.append(author)
adversary = None
if report['adversary']:
printer.debug("Adding adversary {}".format(
report['adversary']))
adversary = stix2.IntrusionSet(name=report['adversary'])
stix2_object_refs.append(adversary)
stix2_objects.append(adversary)
if report['targeted_countries']:
for country in report['targeted_countries']:
printer.debug(f"Adding country {country}")
c = stix2.Identity(name=country,
identity_class='organization',
custom_properties={
'x_opencti_identity_type':
'country'
})
stix2_objects.append(c)
stix2_object_refs.append(c)
external_refs = []
for eref in report['references']:
external_refs.append(
stix2.ExternalReference(source_name=tldextract.extract(
eref).registered_domain,
url=eref))
indicators = report["indicators"]
if indicators:
for indicator in indicators:
resolved_type = self.resolve_type(
indicator["type"].lower())
if resolved_type != None and indicator["is_active"]:
observable_type = resolved_type
observable_value = indicator["indicator"]
pattern_type = 'stix'
try:
if observable_type in PATTERNTYPES:
pattern_type = observable_type
elif observable_type not in OPENCTISTIX2:
printer.info("Not in stix2 dict")
else:
if 'transform' in OPENCTISTIX2[
observable_type]:
if OPENCTISTIX2[observable_type][
'transform'][
'operation'] == 'remove_string':
observable_value = observable_value.replace(
OPENCTISTIX2[observable_type]
['transform']['value'], '')
lhs = stix2.ObjectPath(
OPENCTISTIX2[observable_type]['type'],
OPENCTISTIX2[observable_type]['path'])
observable_value = stix2.ObservationExpression(
stix2.EqualityComparisonExpression(
lhs, observable_value))
except Exception as e:
printer.error(e)
printer.info(
"Could not determine suitable pattern")
try:
indicator_obj = stix2.Indicator(
name=indicator["indicator"],
description=indicator["description"],
pattern=str(observable_value),
valid_from=indicator["created"],
labels=['malicious-activity'],
created_by_ref=author,
object_marking_refs=[tlp_id],
custom_properties={
'x_opencti_observable_type':
resolved_type,
'x_opencti_observable_value':
indicator["indicator"],
'x_opencti_pattern_type':
pattern_type
})
stix2_object_refs.append(indicator_obj)
stix2_objects.append(indicator_obj)
except Exception as e:
printer.error(e)
printer.info("Couldn't fetch indicator")
else:
printer.error("No indicators")
report = stix2.Report(name=name,
description=description,
created_by_ref=author,
labels=['threat-report'],
published=report['created'],
created=report['created'],
modified=report['modified'],
object_refs=stix2_object_refs,
object_marking_refs=[tlp_id],
external_references=external_refs)
stix2_objects.append(report)
bundle = stix2.Bundle(stix2_objects).serialize()
if not self.dryrun:
self.opencti_connector_helper.send_stix2_bundle(
bundle, None, True, False)
printer.info("Sending to OpenCTI")
#printer.debug(str(bundle))
else:
printer.debug(f"No sectors, disregarding '{name}'")
