Modules for expansion services, import and export in MISP http://misp.github.io/misp-modules
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 

88 lines
2.5 KiB

"""vt_graph_parser.helpers.parsers.
This module provides parsers for MISP inputs.
"""
from vt_graph_parser.helpers.wrappers import MispAttribute
MISP_INPUT_ATTR = [
"hostname",
"domain",
"ip-src",
"ip-dst",
"md5",
"sha1",
"sha256",
"url",
"filename|md5",
"filename",
"target-user",
"target-email"
]
VIRUSTOTAL_GRAPH_LINK_PREFIX = "https://www.virustotal.com/graph/"
def _parse_data(attributes, objects):
"""Parse MISP event attributes and objects data.
Args:
attributes (dict): dictionary which contains the MISP event attributes data.
objects (dict): dictionary which contains the MISP event objects data.
Returns:
([MispAttribute], str): MISP attributes and VTGraph link if exists.
Link defaults to "".
"""
attributes_data = []
vt_graph_link = ""
# Get simple MISP event attributes.
attributes_data += (
[attr for attr in attributes
if attr.get("type") in MISP_INPUT_ATTR])
# Get attributes from MISP objects too.
if objects:
for object_ in objects:
object_attrs = object_.get("Attribute", [])
attributes_data += (
[attr for attr in object_attrs
if attr.get("type") in MISP_INPUT_ATTR])
# Check if there is any VirusTotal Graph computed in MISP event.
vt_graph_links = (
attr for attr in attributes if attr.get("type") == "link"
and attr.get("value", "").startswith(VIRUSTOTAL_GRAPH_LINK_PREFIX))
# MISP could have more than one VirusTotal Graph, so we will take
# the last one.
current_id = 0 # MISP attribute id is the number of the attribute.
vt_graph_link = ""
for link in vt_graph_links:
if int(link.get("id")) > current_id:
current_id = int(link.get("id"))
vt_graph_link = link.get("value")
attributes = [
MispAttribute(data["type"], data["category"], data["value"])
for data in attributes_data]
return (attributes,
vt_graph_link.replace(VIRUSTOTAL_GRAPH_LINK_PREFIX, ""))
def parse_pymisp_response(payload):
"""Get event attributes and VirusTotal Graph id from pymisp response.
Args:
payload (dict): dictionary which contains pymisp response.
Returns:
([MispAttribute], str): MISP attributes and VTGraph link if exists.
Link defaults to "".
"""
event_attrs = payload.get("Attribute", [])
objects = payload.get("Object")
return _parse_data(event_attrs, objects)