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#!/usr/bin/env python
# -*- coding: utf-8 -*-
# @Time : 2024/1/31 15:03
# @author : yinjinagyi
# @File : cyberghostvpn.py
# @Function:
import datetime
import re
import pandas as pd
from tool.Functions import check_internet
from tool.MariadbTool import MariadbUtil
from vpn_detector import VpnDetector, ServerGroup
class Cyberghostvpn(VpnDetector):
"""
This class is used to detect cyberghostvpn server ip and server name
"""
def __init__(self, start_time, end_time):
super().__init__(start_time, end_time)
self.plugin_config = self.load_config()['cyberghostvpn']
self.vpn_service_name = self.plugin_config['vpn_service_name']
self.plugin_name = self.plugin_config['plugin_name']
self.plugin_id = self.plugin_config['plugin_id']
self.confidence = self.plugin_config['confidence']
self.start_time = start_time
self.end_time = end_time
def find_server(self):
"""
Get cyberghostvpn server ip and server name from clickhouse database
:return: cyberghostvpn server ip list and server name list
"""
result_group = []
# start finding cyberghostvpn server name
cyberghostvpn_server_name_detector = CyberghostvpnServername(self.start_time, self.end_time)
server_name_object = cyberghostvpn_server_name_detector.find_server()
result_group.extend(server_name_object)
# start finding cyberghostvpn server ip
cyberghostvpn_server_ip_detector = CyberghostvpnServerip(self.start_time, self.end_time)
cyberghostvpn_server_ip_detector.server_name_list = server_name_object[0].server_list if len(server_name_object) > 0 else []
result_group.extend(cyberghostvpn_server_ip_detector.find_server())
return result_group
class CyberghostvpnServerip(VpnDetector):
"""
This class is used to detect cyberghostvpn server ip
"""
def __init__(self, start_time, end_time):
super().__init__(start_time, end_time)
self.plugin_config = self.load_config()['cyberghostvpn']
self.plugin_name = self.plugin_config['plugin_name']
self.object_type = self.plugin_config['ip']['object_type']
# 开始时间为当前的整点时间
self.start_time = start_time
self.end_time = end_time
self.output_file_name = self.plugin_name + '-' + self.object_type + '_' + str(self.start_time).replace(' ',
'_').replace(
':', '')[:13] + '.csv'
self.kb_sql = self.plugin_config['ip']['kb_sql']
self.kb_dbname = self.config['knowledgebase']['db_name']
self.kb_table_name = self.config['knowledgebase']['domain_library_name']
self.mariadb = MariadbUtil(self.config['mariadb']['host'], self.config['mariadb']['port'],
self.config['mariadb']['user'], str(self.config['mariadb']['pswd']),
self.config['mariadb']['db_name'])
self.mariadb_dbname = self.config['mariadb']['db_name']
self.mariadb_ip_tb_name = self.config['mariadb']['ip_table_name']
self.mariadb_domain_tb_name = self.config['mariadb']['domain_table_name']
self.sql = self.plugin_config['ip']['sql']
self.server_name_list = []
def find_more_servernames(self, server_name_list):
"""
Find more server name from observed cyberghost server name list
:return: server name list
"""
pattern_list = []
expanded_server_names = []
for server_name in server_name_list:
# pattern = re.compile(r'\.(.*?)\-rack')
pattern = re.compile(r'\.(.*?)\.nodes')
findall = pattern.findall(server_name)
if len(findall) > 0:
pattern_list.append(findall[0])
pattern_list = set(pattern_list)
for pattern_str in pattern_list:
domain_list = [f"blade{str(index1)}.{pattern_str}.nodes.gen4.ninja" for index1 in range(1, 100)]
expanded_server_names.extend(domain_list)
return expanded_server_names
def find_server_name_patterns(self, server_name_list):
pattern_list = []
for server_name in server_name_list:
# pattern = re.compile(r'\.(.*?)\-rack')
pattern = re.compile(r'\.(.*?)\.nodes')
findall = pattern.findall(server_name)
if len(findall) > 0:
pattern_list.append(findall[0])
pattern_list = set(pattern_list)
return pattern_list
def find_server(self):
"""
Get cyberghostvpn server ip by resolving cyberghostvpn server name
:return: cyberghostvpn server ip list
"""
self.kb_sql = self.kb_sql.replace("{$mariadb_dbname}", self.mariadb_dbname).replace(
"{$mariadb_domain_tablename}", self.mariadb_domain_tb_name)
# 根据server name获取ip
self.logger.info('[{}] - Get servername from knowledge base.'.format(self.plugin_name))
servername_list = []
resolved_ip_list = []
try:
query_result = self.mariadb.query_sql(self.kb_sql)
finally:
self.mariadb.close()
if query_result:
servername_list = [i[0] for i in query_result]
self.server_name_list.extend(servername_list)
# 判断是否能够访问外网，如果能够访问外网，则从外网获取cyberghost_servername_list的域名解析地址
if self.config['common']['active_scan']['switch'] and check_internet():
# servername_list = self.find_more_servernames(servername_list)
# if len(servername_list) > 0:
# resolved_ip_list = self.resolve_dns_for_domain_list(servername_list)
# self.logger.info('[{}] - Get {} server ip by resolving server name successfully.'.format(self.plugin_name, len(resolved_ip_list)))
# else:
# self.logger.info(
# '[{}] - No cyberghost server name found from knowledge database.'.format(self.plugin_name))
server_rackname_list = self.find_server_name_patterns(self.server_name_list)
if len(server_rackname_list) > 0:
resolved_ip_list = []
for rack_name in server_rackname_list:
index = 1
resolve_result = self.get_resolved_addr(f"blade{str(index)}.{rack_name}.nodes.gen4.ninja")
while resolve_result[1] is not None:
self.logger.info('{} {}'.format(resolve_result[0], resolve_result[1]))
resolved_ip_list.extend(resolve_result[1])
index += 1
resolve_result = self.get_resolved_addr(f"blade{str(index)}.{rack_name}.nodes.gen4.ninja")
self.logger.info('[{}] - Get {} server ip by resolving server name successfully.'.format(self.plugin_name, len(resolved_ip_list)))
else:
self.logger.info('[{}] - No internet connection, skip dns resolve.'.format(self.plugin_name))
# 根据udp探测行为获取IP
self.logger.info('[{}] - Start to query server ip from session records according to udp payload feature.'.format(self.plugin_name))
TIME_FILTER_PATTERN = self.config['common']['time_filter_pattern'].replace('recv_time_columnname',
self.config['common'][
'recv_time_columnname'])
time_filter = TIME_FILTER_PATTERN.replace("{$start_time}", str(self.start_time)).replace("{$end_time}", str(
self.end_time)).replace("{$time_zone}", self.time_zone)
self.sql = self.sql.replace("{$db_name}", self.dbname).replace("{$table_name}", self.table_name)
self.sql = self.sql.replace("{$time_filter}", time_filter)
self.sql = self.sql.replace("{$udp_monitor_app_name}", self.plugin_config['ip']['udp_monitor_app_name'])
self.logger.info("[{}] - Sql for {}: {}".format(self.plugin_name, self.plugin_name, self.sql))
# query data from clickhouse database
try:
cyberghostvpn_serverip_df = pd.DataFrame(self.client.execute(self.sql))
finally:
self.client.disconnect()
if cyberghostvpn_serverip_df.empty:
self.logger.info('[{}] - No server ip found from session records'.format(self.plugin_name))
else:
cyberghostvpn_serverip_list = cyberghostvpn_serverip_df[0].drop_duplicates().tolist()
self.logger.info('[{}] - Query server ip from clickhouse database successfully. {} items found'
.format(self.plugin_name, len(cyberghostvpn_serverip_list)))
resolved_ip_list.extend(cyberghostvpn_serverip_list)
result_ip_list = list(set(resolved_ip_list))
return [ServerGroup(self.object_type, result_ip_list, self.output_file_name)]
class CyberghostvpnServername(VpnDetector):
"""
This class is used to detect cyberghostvpn server name
"""
def __init__(self, start_time, end_time):
super().__init__(start_time, end_time)
self.plugin_config = self.load_config()['cyberghostvpn']
self.plugin_name = self.plugin_config['plugin_name']
self.object_type = self.plugin_config['domain']['object_type']
self.output_file_name = self.plugin_name + '-' + self.object_type + '_' + str(self.start_time).replace(' ', '_').replace(':', '')[:13] + '.csv'
self.start_time = start_time
self.end_time = end_time
self.sql = self.plugin_config['domain']['sql']
def find_server(self):
"""
Get cyberghostvpn server name from clickhouse database
:return: cyberghostvpn server name list
"""
self.logger.info('[{}] - Start to query cyberghostvpn server name from session record'.format(self.plugin_name))
# construct query sql
TIME_FILTER_PATTERN = self.config['common']['time_filter_pattern'].replace('recv_time_columnname',
self.config['common'][
'recv_time_columnname'])
time_filter = TIME_FILTER_PATTERN.replace("{$start_time}", str(self.start_time)).replace("{$end_time}", str(
self.end_time)).replace("{$time_zone}", self.time_zone)
self.sql = self.sql.replace("{$db_name}", self.dbname).replace("{$table_name}", self.table_name)
self.sql = self.sql.replace("{$time_filter}", time_filter)
self.logger.info("[{}] - Sql for {}: {}".format(self.plugin_name, self.plugin_config['plugin_name'], self.sql))
# query data from clickhouse database
try:
cyberghostvpn_servername_df = pd.DataFrame(self.client.execute(self.sql))
finally:
self.client.disconnect()
if cyberghostvpn_servername_df.empty:
self.logger.info('[{}] - No cyberghostvpn server name found from session records'.format(self.plugin_name))
return []
cyberghostvpn_servername_list = cyberghostvpn_servername_df[0].drop_duplicates().tolist()
self.logger.info('[{}] - Query cyberghostvpn server name from session records successfully. {} items found'
.format(self.plugin_name, len(cyberghostvpn_servername_list)))
return [ServerGroup(self.object_type, cyberghostvpn_servername_list, self.output_file_name)]
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