{
 "cells": [
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# Impacket Lateralization Detection\n",
    "Detects wmiexec/dcomexec/atexec/smbexec from Impacket framework"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Rule Content\n",
    "```\n",
    "- title: Impacket Lateralization Detection\n",
    "  id: 10c14723-61c7-4c75-92ca-9af245723ad2\n",
    "  status: experimental\n",
    "  description: Detects wmiexec/dcomexec/atexec/smbexec from Impacket framework\n",
    "  references:\n",
    "  - https://github.com/SecureAuthCorp/impacket/blob/master/examples/wmiexec.py\n",
    "  - https://github.com/SecureAuthCorp/impacket/blob/master/examples/atexec.py\n",
    "  - https://github.com/SecureAuthCorp/impacket/blob/master/examples/smbexec.py\n",
    "  - https://github.com/SecureAuthCorp/impacket/blob/master/examples/dcomexec.py\n",
    "  author: Ecco\n",
    "  date: 2019/09/03\n",
    "  logsource:\n",
    "    category: process_creation\n",
    "    product: windows\n",
    "    service: null\n",
    "  detection:\n",
    "    selection_other:\n",
    "      ParentImage:\n",
    "      - '*\\wmiprvse.exe'\n",
    "      - '*\\mmc.exe'\n",
    "      - '*\\explorer.exe'\n",
    "      - '*\\services.exe'\n",
    "      CommandLine:\n",
    "      - '*cmd.exe* /Q /c * \\\\\\\\127.0.0.1\\\\*&1*'\n",
    "    selection_atexec:\n",
    "      ParentCommandLine:\n",
    "      - '*svchost.exe -k netsvcs'\n",
    "      - taskeng.exe*\n",
    "      CommandLine:\n",
    "      - cmd.exe /C *Windows\\\\Temp\\\\*&1\n",
    "    condition: (1 of selection_*)\n",
    "  fields:\n",
    "  - CommandLine\n",
    "  - ParentCommandLine\n",
    "  tags:\n",
    "  - attack.lateral_movement\n",
    "  - attack.t1047\n",
    "  - attack.t1175\n",
    "  falsepositives:\n",
    "  - pentesters\n",
    "  level: critical\n",
    "\n",
    "```"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Querying Elasticsearch"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "### Import Libraries"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "from elasticsearch import Elasticsearch\n",
    "from elasticsearch_dsl import Search\n",
    "import pandas as pd"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "### Initialize Elasticsearch client"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "es = Elasticsearch(['http://helk-elasticsearch:9200'])\n",
    "searchContext = Search(using=es, index='logs-*', doc_type='doc')"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "### Run Elasticsearch Query"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "s = searchContext.query('query_string', query='((process_parent_path.keyword:(*\\\\wmiprvse.exe OR *\\\\mmc.exe OR *\\\\explorer.exe OR *\\\\services.exe) AND process_command_line.keyword:(*cmd.exe*\\ \\/Q\\ \\/c\\ *\\ \\\\\\\\127.0.0.1\\\\*&1*)) OR (process_parent_command_line.keyword:(*svchost.exe\\ \\-k\\ netsvcs OR taskeng.exe*) AND process_command_line.keyword:(cmd.exe\\ \\/C\\ *Windows\\\\Temp\\\\*&1)))')\n",
    "response = s.execute()\n",
    "if response.success():\n",
    "    df = pd.DataFrame((d.to_dict() for d in s.scan()))"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "### Show Results"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "df.head()"
   ]
  }
 ],
 "metadata": {},
 "nbformat": 4,
 "nbformat_minor": 4
}