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

{
 "cells": [
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# Mimikatz through Windows Remote Management\n",
    "Detects usage of mimikatz through WinRM protocol by monitoring access to lsass process by wsmprovhost.exe."
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Rule Content\n",
    "```\n",
    "- title: Mimikatz through Windows Remote Management\n",
    "  id: aa35a627-33fb-4d04-a165-d33b4afca3e8\n",
    "  description: Detects usage of mimikatz through WinRM protocol by monitoring access\n",
    "    to lsass process by wsmprovhost.exe.\n",
    "  references:\n",
    "  - https://pentestlab.blog/2018/05/15/lateral-movement-winrm/\n",
    "  status: stable\n",
    "  author: Patryk Prauze - ING Tech\n",
    "  logsource:\n",
    "    product: windows\n",
    "    service: sysmon\n",
    "    category: null\n",
    "  detection:\n",
    "    selection:\n",
    "      EventID: 10\n",
    "      TargetImage: C:\\windows\\system32\\lsass.exe\n",
    "      SourceImage: C:\\Windows\\system32\\wsmprovhost.exe\n",
    "    condition: selection\n",
    "  tags:\n",
    "  - attack.credential_access\n",
    "  - attack.execution\n",
    "  - attack.t1003\n",
    "  - attack.t1028\n",
    "  - attack.s0005\n",
    "  falsepositives:\n",
    "  - low\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-sysmon-*', 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:\"10\" AND target_process_path:\"C\\:\\\\windows\\\\system32\\\\lsass.exe\" AND process_path:\"C\\:\\\\Windows\\\\system32\\\\wsmprovhost.exe\")')\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
}