misp-modules/misp_modules/modules/export_mod/defender_endpoint_export.py

110 lines
2.9 KiB
Python
Executable File

"""
Export module for coverting MISP events into Defender for Endpoint KQL queries.
Config['Period'] : allows to define period over witch to look for IOC from now
"""
import base64
import json
misperrors = {"error": "Error"}
types_to_use = ['sha1', 'md5', 'domain', 'ip', 'url']
userConfig = {
}
moduleconfig = ["Period"]
inputSource = ['event']
outputFileExtension = 'kql'
responseType = 'application/txt'
moduleinfo = {'version': '1.0', 'author': 'Julien Bachmann, Hacknowledge',
'description': 'Defender for Endpoint KQL hunting query export module',
'module-type': ['export']}
def handle_sha1(value, period):
query = f"""find in (DeviceAlertEvents, DeviceFileEvents, DeviceImageLoadEvents, DeviceProcessEvents)
where SHA1 == '{value}' or InitiatingProcessSHA1 == '{value}'"""
return query.replace('\n', ' ')
def handle_md5(value, period):
query = f"""find in (DeviceAlertEvents, DeviceFileEvents, DeviceImageLoadEvents, DeviceProcessEvents)
where MD5 == '{value}' or InitiatingProcessMD5 == '{value}'"""
return query.replace('\n', ' ')
def handle_domain(value, period):
query = f"""find in (DeviceAlertEvents, DeviceNetworkEvents)
where RemoteUrl contains '{value}'"""
return query.replace('\n', ' ')
def handle_ip(value, period):
query = f"""find in (DeviceAlertEvents, DeviceNetworkEvents)
where RemoteIP == '{value}'"""
return query.replace('\n', ' ')
def handle_url(value, period):
query = f"""find in (DeviceAlertEvents, DeviceNetworkEvents)
where RemoteUrl startswith '{value}'"""
return query.replace('\n', ' ')
handlers = {
'sha1': handle_sha1,
'md5': handle_md5,
'domain': handle_domain,
'ip': handle_ip,
'url': handle_url
}
def handler(q=False):
if q is False:
return False
request = json.loads(q)
config = request.get("config", {"Period": ""})
output = ''
for event in request["data"]:
for attribute in event["Attribute"]:
if attribute['type'] in types_to_use:
output = output + handlers[attribute['type']](attribute['value'], config['Period']) + '\n'
r = {"response": [], "data": str(base64.b64encode(bytes(output, 'utf-8')), 'utf-8')}
return r
def introspection():
modulesetup = {}
try:
responseType
modulesetup['responseType'] = responseType
except NameError:
pass
try:
userConfig
modulesetup['userConfig'] = userConfig
except NameError:
pass
try:
outputFileExtension
modulesetup['outputFileExtension'] = outputFileExtension
except NameError:
pass
try:
inputSource
modulesetup['inputSource'] = inputSource
except NameError:
pass
return modulesetup
def version():
moduleinfo['config'] = moduleconfig
return moduleinfo