{
 "cells": [
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# Locked Workstation\n",
    "Automatically lock workstation sessions after a standard period of inactivity. The case is not applicable for Unix OS. Supported OS - Windows 2008 R2 and 7, Windows 2012 R2 and 8.1, Windows 2016 and 10 Windows Server 2019."
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Rule Content\n",
    "```\n",
    "- title: Locked Workstation\n",
    "  id: 411742ad-89b0-49cb-a7b0-3971b5c1e0a4\n",
    "  description: Automatically lock workstation sessions after a standard period of\n",
    "    inactivity. The case is not applicable for Unix OS. Supported OS - Windows 2008\n",
    "    R2 and 7, Windows 2012 R2 and 8.1, Windows 2016 and 10 Windows Server 2019.\n",
    "  author: Alexandr Yampolskyi, SOC Prime\n",
    "  status: stable\n",
    "  references:\n",
    "  - https://www.cisecurity.org/controls/cis-controls-list/\n",
    "  - https://www.pcisecuritystandards.org/documents/PCI_DSS_v3-2-1.pdf\n",
    "  - https://nvlpubs.nist.gov/nistpubs/CSWP/NIST.CSWP.04162018.pdf\n",
    "  - https://www.ultimatewindowssecurity.com/securitylog/encyclopedia/event.aspx?eventID=4800\n",
    "  date: 2019/03/26\n",
    "  logsource:\n",
    "    product: windows\n",
    "    service: security\n",
    "    category: null\n",
    "  detection:\n",
    "    selection:\n",
    "      EventID:\n",
    "      - 4800\n",
    "    condition: selection\n",
    "  falsepositives:\n",
    "  - unknown\n",
    "  level: low\n",
    "  tags:\n",
    "  - CSC16\n",
    "  - CSC16.11\n",
    "  - ISO27002-2013 A.9.1.1\n",
    "  - ISO27002-2013 A.9.2.1\n",
    "  - ISO27002-2013 A.9.2.2\n",
    "  - ISO27002-2013 A.9.2.3\n",
    "  - ISO27002-2013 A.9.2.4\n",
    "  - ISO27002-2013 A.9.2.5\n",
    "  - ISO27002-2013 A.9.2.6\n",
    "  - ISO27002-2013 A.9.3.1\n",
    "  - ISO27002-2013 A.9.4.1\n",
    "  - ISO27002-2013 A.9.4.3\n",
    "  - ISO27002-2013 A.11.2.8\n",
    "  - PCI DSS 3.1 7.1\n",
    "  - PCI DSS 3.1 7.2\n",
    "  - PCI DSS 3.1 7.3\n",
    "  - PCI DSS 3.1 8.7\n",
    "  - PCI DSS 3.1 8.8\n",
    "  - NIST CSF 1.1 PR.AC-1\n",
    "  - NIST CSF 1.1 PR.AC-4\n",
    "  - NIST CSF 1.1 PR.AC-6\n",
    "  - NIST CSF 1.1 PR.AC-7\n",
    "  - NIST CSF 1.1 PR.PT-3\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-endpoint-winevent-security-*', 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='event_id:(\"4800\")')\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
}