mirror of https://github.com/infosecn1nja/HELK.git
205 lines
6.0 KiB
Plaintext
205 lines
6.0 KiB
Plaintext
{
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"cells": [
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"# Suspicious Typical Malware Back Connect Ports\n",
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"Detects programs that connect to typical malware back connect ports based on statistical analysis from two different sandbox system databases"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"## Rule Content\n",
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"```\n",
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"- title: Suspicious Typical Malware Back Connect Ports\n",
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" id: 4b89abaa-99fe-4232-afdd-8f9aa4d20382\n",
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" status: experimental\n",
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" description: Detects programs that connect to typical malware back connect ports\n",
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" based on statistical analysis from two different sandbox system databases\n",
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" references:\n",
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" - https://docs.google.com/spreadsheets/d/17pSTDNpa0sf6pHeRhusvWG6rThciE8CsXTSlDUAZDyo\n",
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" author: Florian Roth\n",
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" date: 2017/03/19\n",
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" tags:\n",
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" - attack.command_and_control\n",
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" - attack.t1043\n",
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" logsource:\n",
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" product: windows\n",
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" service: sysmon\n",
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" definition: 'Use the following config to generate the necessary Event ID 10 Process\n",
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" Access events: <ProcessAccess onmatch=\"include\"><CallTrace condition=\"contains\">VBE7.DLL</CallTrace></ProcessAccess><ProcessAccess\n",
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" onmatch=\"exclude\"><CallTrace condition=\"excludes\">UNKNOWN</CallTrace></ProcessAccess>'\n",
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" category: null\n",
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" detection:\n",
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" selection:\n",
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" EventID: 3\n",
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" Initiated: 'true'\n",
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" DestinationPort:\n",
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" - '4443'\n",
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" - '2448'\n",
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" - '8143'\n",
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" - '1777'\n",
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" - '1443'\n",
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" - '243'\n",
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" - '65535'\n",
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" - '13506'\n",
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" - '3360'\n",
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" - '200'\n",
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" - '198'\n",
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" - '49180'\n",
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" - '13507'\n",
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" - '6625'\n",
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" - '4444'\n",
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" - '4438'\n",
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" - '1904'\n",
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" - '13505'\n",
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" - '13504'\n",
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" - '12102'\n",
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" - '9631'\n",
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" - '5445'\n",
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" - '2443'\n",
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" - '777'\n",
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" - '13394'\n",
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" - '13145'\n",
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" - '12103'\n",
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" - '5552'\n",
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" - '3939'\n",
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" - '3675'\n",
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" - '666'\n",
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" - '473'\n",
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" - '5649'\n",
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" - '4455'\n",
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" - '4433'\n",
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" - '1817'\n",
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" - '100'\n",
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" - '65520'\n",
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" - '1960'\n",
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" - '1515'\n",
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" - '743'\n",
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" - '700'\n",
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" - '14154'\n",
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" - '14103'\n",
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" - '14102'\n",
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" - '12322'\n",
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" - '10101'\n",
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" - '7210'\n",
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" - '4040'\n",
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" - '9943'\n",
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" filter1:\n",
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" Image: '*\\Program Files*'\n",
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" filter2:\n",
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" DestinationIp:\n",
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" - 10.*\n",
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" - 192.168.*\n",
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" - 172.16.*\n",
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" - 172.17.*\n",
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" - 172.18.*\n",
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" - 172.19.*\n",
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" - 172.20.*\n",
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" - 172.21.*\n",
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" - 172.22.*\n",
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" - 172.23.*\n",
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" - 172.24.*\n",
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" - 172.25.*\n",
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" - 172.26.*\n",
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" - 172.27.*\n",
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" - 172.28.*\n",
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" - 172.29.*\n",
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" - 172.30.*\n",
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" - 172.31.*\n",
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" - 127.*\n",
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" DestinationIsIpv6: 'false'\n",
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" condition: selection and not ( filter1 or filter2 )\n",
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" falsepositives:\n",
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" - unknown\n",
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" level: medium\n",
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"\n",
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"```"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"## Querying Elasticsearch"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"### Import Libraries"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": [
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"from elasticsearch import Elasticsearch\n",
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"from elasticsearch_dsl import Search\n",
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"import pandas as pd"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"### Initialize Elasticsearch client"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": [
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"es = Elasticsearch(['http://helk-elasticsearch:9200'])\n",
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"searchContext = Search(using=es, index='logs-endpoint-winevent-sysmon-*', doc_type='doc')"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"### Run Elasticsearch Query"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": [
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"s = searchContext.query('query_string', query='((event_id:\"3\" AND network_initiated:\"true\" AND dst_port:(\"4443\" OR \"2448\" OR \"8143\" OR \"1777\" OR \"1443\" OR \"243\" OR \"65535\" OR \"13506\" OR \"3360\" OR \"200\" OR \"198\" OR \"49180\" OR \"13507\" OR \"6625\" OR \"4444\" OR \"4438\" OR \"1904\" OR \"13505\" OR \"13504\" OR \"12102\" OR \"9631\" OR \"5445\" OR \"2443\" OR \"777\" OR \"13394\" OR \"13145\" OR \"12103\" OR \"5552\" OR \"3939\" OR \"3675\" OR \"666\" OR \"473\" OR \"5649\" OR \"4455\" OR \"4433\" OR \"1817\" OR \"100\" OR \"65520\" OR \"1960\" OR \"1515\" OR \"743\" OR \"700\" OR \"14154\" OR \"14103\" OR \"14102\" OR \"12322\" OR \"10101\" OR \"7210\" OR \"4040\" OR \"9943\")) AND (NOT ((process_path.keyword:*\\\\Program\\ Files* OR (dst_ip_addr.keyword:(10.* OR 192.168.* OR 172.16.* OR 172.17.* OR 172.18.* OR 172.19.* OR 172.20.* OR 172.21.* OR 172.22.* OR 172.23.* OR 172.24.* OR 172.25.* OR 172.26.* OR 172.27.* OR 172.28.* OR 172.29.* OR 172.30.* OR 172.31.* OR 127.*) AND DestinationIsIpv6:\"false\")))))')\n",
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"response = s.execute()\n",
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"if response.success():\n",
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" df = pd.DataFrame((d.to_dict() for d in s.scan()))"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"### Show Results"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": [
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"df.head()"
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]
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}
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],
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"metadata": {},
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"nbformat": 4,
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"nbformat_minor": 4
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}
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