HELK/docker/helk-jupyter/notebooks/sigma/win_alert_ruler.ipynb

{
 "cells": [
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# Hacktool Ruler\n",
    "This events that are generated when using the hacktool Ruler by Sensepost"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Rule Content\n",
    "```\n",
    "- title: Hacktool Ruler\n",
    "  id: 24549159-ac1b-479c-8175-d42aea947cae\n",
    "  description: This events that are generated when using the hacktool Ruler by Sensepost\n",
    "  author: Florian Roth\n",
    "  date: 2017/05/31\n",
    "  modified: 2019/07/26\n",
    "  references:\n",
    "  - https://github.com/sensepost/ruler\n",
    "  - https://github.com/sensepost/ruler/issues/47\n",
    "  - https://github.com/staaldraad/go-ntlm/blob/master/ntlm/ntlmv1.go#L427\n",
    "  - https://docs.microsoft.com/en-us/windows/security/threat-protection/auditing/event-4776\n",
    "  - https://docs.microsoft.com/en-us/windows/security/threat-protection/auditing/event-4624\n",
    "  tags:\n",
    "  - attack.discovery\n",
    "  - attack.execution\n",
    "  - attack.t1087\n",
    "  - attack.t1075\n",
    "  - attack.t1114\n",
    "  - attack.t1059\n",
    "  logsource:\n",
    "    product: windows\n",
    "    service: security\n",
    "    category: null\n",
    "  detection:\n",
    "    selection1:\n",
    "      EventID:\n",
    "      - 4776\n",
    "      Workstation: RULER\n",
    "    selection2:\n",
    "      EventID:\n",
    "      - 4624\n",
    "      - 4625\n",
    "      WorkstationName: RULER\n",
    "    condition: (1 of selection*)\n",
    "  falsepositives:\n",
    "  - Go utilities that use staaldraad awesome NTLM library\n",
    "  level: high\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='(src_host_name:\"RULER\" AND (event_id:(\"4776\") OR event_id:(\"4624\" OR \"4625\")))')\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
}