Modules for expansion services, import and export in MISP http://misp.github.io/misp-modules
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"""vt_graph_parser.importers.base.
This module provides a common method to import graph from misp attributes.
"""
import vt_graph_api
from vt_graph_parser.helpers.rules import MispEventInitialRule
def import_misp_graph(
misp_attributes, graph_id, vt_api_key, fetch_information, name,
private, fetch_vt_enterprise, user_editors, user_viewers, group_editors,
group_viewers, use_vt_to_connect_the_graph, max_api_quotas,
max_search_depth):
"""Import VirusTotal Graph from MISP.
Args:
misp_attributes ([MispAttribute]): list with the MISP attributes which
will be added to the returned graph.
graph_id: if supplied, the graph will be loaded instead of compute it again.
vt_api_key (str): VT API Key.
fetch_information (bool): whether the script will fetch
information for added nodes in VT. Defaults to True.
name (str): graph title. Defaults to "".
private (bool): True for private graphs. You need to have
Private Graph premium features enabled in your subscription. Defaults
to False.
fetch_vt_enterprise (bool, optional): if True, the graph will search any
available information using VirusTotal Intelligence for the node if there
is no normal information for it. Defaults to False.
user_editors ([str]): usernames that can edit the graph.
Defaults to None.
user_viewers ([str]): usernames that can view the graph.
Defaults to None.
group_editors ([str]): groups that can edit the graph.
Defaults to None.
group_viewers ([str]): groups that can view the graph.
Defaults to None.
use_vt_to_connect_the_graph (bool): if True, graph nodes will
be linked using VirusTotal API. Otherwise, the links will be generated
using production rules based on MISP attributes order. Defaults to
False.
max_api_quotas (int): maximum number of api quotas that could
be consumed to resolve graph using VirusTotal API. Defaults to 20000.
max_search_depth (int, optional): max search depth to explore
relationship between nodes when use_vt_to_connect_the_graph is True.
Defaults to 3.
If use_vt_to_connect_the_graph is True, it will take some time to compute
graph.
Returns:
vt_graph_api.graph.VTGraph: the imported graph.
"""
rule = MispEventInitialRule()
# Check if the event has been already computed in VirusTotal Graph. Otherwise
# a new graph will be created.
if not graph_id:
graph = vt_graph_api.VTGraph(
api_key=vt_api_key, name=name, private=private,
user_editors=user_editors, user_viewers=user_viewers,
group_editors=group_editors, group_viewers=group_viewers)
else:
graph = vt_graph_api.VTGraph.load_graph(graph_id, vt_api_key)
attributes_to_add = [attr for attr in misp_attributes
if not graph.has_node(attr.value)]
total_expandable_attrs = max(sum(
1 for attr in attributes_to_add
if attr.type in vt_graph_api.Node.SUPPORTED_NODE_TYPES),
1)
max_quotas_per_search = max(
int(max_api_quotas / total_expandable_attrs), 1)
previous_node_id = ""
for attr in attributes_to_add:
# Add the current attr as node to the graph.
added_node = graph.add_node(
attr.value, attr.type, fetch_information, fetch_vt_enterprise,
attr.label)
# If use_vt_to_connect_the_grap is True the nodes will be connected using
# VT API.
if use_vt_to_connect_the_graph:
if (attr.type not in vt_graph_api.Node.SUPPORTED_NODE_TYPES and previous_node_id):
graph.add_link(previous_node_id, attr.value, "manual")
else:
graph.connect_with_graph(
attr.value, max_quotas_per_search, max_search_depth,
fetch_info_collected_nodes=fetch_information)
else:
rule = rule.resolve_relation(graph, added_node, attr.category)
return graph