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graph_generator.py
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graph_generator.py
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#!python
# -*- coding: utf-8 -*-
# @author: Kun
'''
Author: Kun
Date: 2021-09-16 11:21:53
LastEditTime: 2021-09-23 18:01:15
LastEditors: Kun
Description:
FilePath: /ThreatReportExtractor/graph_generator.py
'''
import re
from graphviz import Digraph
from data_loader.pattern_loader import load_patterns
from data_loader.ioc_loader import iocs
# import main
# import argparse
from project_config import RE_PATTERNS_FILE_PATH
################################################################################################
class edge(object):
def __init__(self, s, d, t):
self.src = s
self.dst = d
self.tag = t
class node(object):
def __init__(self, i, n, t):
self.id = i
self.name = n
self.type = t
self.search = []
self.reachToIDs = set()
self.reachFromIDs = set()
class graph(object):
def __init__(self):
self.nodes = {}
self.edges = []
################################################################################################
class GraphGenerator(object):
def __init__(self) -> None:
super(GraphGenerator, self).__init__()
def remove_no_sub(self, lis):
all_with_subs = []
for i in range(len(lis)):
if lis[i][0].split(": ", 1)[0].lower() != "v":
all_with_subs.append(lis[i])
return all_with_subs
def remove_c_colon_toprevent_graphvizbug(self, lis):
# : causes error in graphviz
for i in lis:
for ind, j in enumerate(i):
if "C:\\" in j:
i[ind] = j.replace("C:\\", "")
elif "D:\\" in j:
i[ind] = j.replace("D:\\", "")
elif "E:\\" in j:
i[ind] = j.replace("E:\\", "")
elif "F:\\" in j:
i[ind] = j.replace("F:\\", "")
elif "G:\\" in j:
i[ind] = j.replace("G:\\", "")
elif "H:\\" in j:
i[ind] = j.replace("H:\\", "")
elif "I:\\" in j:
i[ind] = j.replace("I:\\", "")
else:
continue
return lis
def rm_duplictes(self, lst):
no_dup = []
for x in lst:
if x not in no_dup:
no_dup.append(x)
elif iocs.list_of_iocs(str(x)):
no_dup.append(x)
return no_dup
################################################################################################
def harsh_rm_duplictes(self, lst):
no_dup = []
for x in lst:
if x not in no_dup:
no_dup.append(x)
elif iocs.list_of_iocs(str(x)):
no_dup.append(x)
return no_dup
def is_house(self, stri):
if re.findall(load_patterns(RE_PATTERNS_FILE_PATH)['Registry'], stri):
return True
else:
return False
################################################################################################
def graph_builder(self, lst, gname):
# malware_name_dot = main.args.gname + ".dot"
malware_name_dot = gname + ".dot"
g = Digraph(malware_name_dot, filename=malware_name_dot)
g.body.extend(
['rankdir="LR"', 'size="9"', 'fixedsize="false"', 'splines="true"', 'nodesep=0.3', 'ranksep=0', 'fontsize=10', 'overlap="scalexy"',
'engine= "neato"'])
for index, item in enumerate(lst):
if len(item) < 3:
lst.pop(index)
for index, item in enumerate(lst):
if len(item) < 3:
lst.pop(index)
edge_counter = 1
for i in range(len(lst)):
sub = repr(lst[i][0].split(": ", 1)[1])
vrb = repr(lst[i][1].split(": ", 1)[1])
obj = repr(lst[i][2].split(": ", 1)[1])
if len(lst[i]) == 3:
xx = lst[i]
if lst[i][1].split(": ", 1)[0].lower() == "v":
if vrb == '\'exec\'':
copy_2 = ".*\\" + lst[i][2].split(": ", 1)[1]
g.node(sub, shape='box', node_type="Process")
g.node(obj, shape='box', node_type="Process")
g.edge(sub, obj, label=str(
edge_counter) + ': ' + "fork")
g.node(sub, shape='box', node_type="Process")
g.node(copy_2, shape='ellipse', node_type="File")
g.edge(sub, copy_2, label=str(
edge_counter) + ': ' + 'exec')
elif vrb == '\'fork\'':
g.node(sub, shape='box', node_type="Process")
g.node(obj, shape='box', node_type="Process")
g.edge(sub, obj, label=str(
edge_counter) + ': ' + 'fork')
elif vrb == '\'read\'' or vrb == '\'load\'':
if self.is_house(obj):
g.node(obj, shape='house', node_type="registry")
g.node(sub, shape='box', node_type="Process")
g.edge(obj, sub, label=str(
edge_counter) + ': ' + vrb)
else:
g.node(obj, shape='ellipse', node_type="file")
g.node(sub, shape='box', node_type="Process")
g.edge(obj, sub, label=str(
edge_counter) + ': ' + vrb)
elif vrb == '\'receive\'':
if sub == obj:
y = " IP " + obj
g.node(y, shape='diamond', node_type="file")
g.node(sub, shape='box', node_type="Process")
g.edge(y, sub, label=str(
edge_counter) + ': ' + vrb[1:-1])
else:
g.node(obj, shape='diamond', node_type="file")
g.node(sub, shape='box', node_type="Process")
g.edge(obj, sub,
label=str(edge_counter) + ': ' + vrb[1:-1])
elif vrb.strip() == '\'write\'' or vrb.strip() == '\'unlink\'':
if self.is_house(obj):
g.node(obj, shape='house', node_type="registry")
g.node(sub, shape='box', node_type="Process")
g.edge(sub, obj, label=str(
edge_counter) + ': ' + vrb[1:-1])
else:
g.node(obj, shape='ellipse', node_type="file")
g.node(sub, shape='box', node_type="Process")
g.edge(sub, obj, label=str(
edge_counter) + ': ' + vrb[1:-1])
elif vrb.strip() == '\'send\'':
if sub == obj:
x = " IP " + obj
g.node(x, shape='diamond')
g.node(sub, shape='box')
g.edge(sub, x,
label=str(edge_counter) + ': ' + vrb[1:-1])
else:
g.node(obj, shape='diamond')
g.node(sub, shape='box')
g.edge(sub, obj,
label=str(edge_counter) + ': ' + vrb[1:-1])
elif vrb != '\'fork\'' or vrb != '\'exec\'' or vrb != '\'read\'' or vrb != '\'load\'' or vrb != '\'write\'' or vrb != '\'send\'' or vrb != '\'unlink\'':
if lst[i][1].split(": ", 1)[0].lower() == "v":
if self.is_house(obj):
g.node(obj, shape='house',
node_type="registry")
g.node(sub, shape='box', node_type="Process")
g.edge(sub, obj, label=str(
edge_counter) + ': ' + vrb[1:-1])
else:
g.node(obj, shape='ellipse', node_type="file")
g.node(sub, shape='ellipse', node_type="file")
# g.edge(sub, obj, label=str(edge_counter) + ': ' + vrb)
g.edge(sub.__str__().replace("'", ""), obj.__str__().replace(
"'", ""), label=str(edge_counter) + ': ' + vrb[1:-1])
else:
print("*********EXCEPTION : ", lst[i])
else:
print('**************** EXCEPTION ****************')
print('******', lst[i], '******')
print('**************** EXCEPTION ****************')
edge_counter += 1
g.view()