HELK/docker/helk-jupyter/notebooks/sigma/sysmon_susp_powershell_rund...

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{
"cells": [
{
"cell_type": "markdown",
"metadata": {},
"source": [
"# PowerShell Rundll32 Remote Thread Creation\n",
"Detects PowerShell remote thread creation in Rundll32.exe"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"## Rule Content\n",
"```\n",
"- title: PowerShell Rundll32 Remote Thread Creation\n",
" id: 99b97608-3e21-4bfe-8217-2a127c396a0e\n",
" status: experimental\n",
" description: Detects PowerShell remote thread creation in Rundll32.exe\n",
" author: Florian Roth\n",
" references:\n",
" - https://www.fireeye.com/blog/threat-research/2018/06/bring-your-own-land-novel-red-teaming-technique.html\n",
" date: 2018/06/25\n",
" logsource:\n",
" product: windows\n",
" service: sysmon\n",
" category: null\n",
" detection:\n",
" selection:\n",
" EventID: 8\n",
" SourceImage: '*\\powershell.exe'\n",
" TargetImage: '*\\rundll32.exe'\n",
" condition: selection\n",
" tags:\n",
" - attack.defense_evasion\n",
" - attack.execution\n",
" - attack.t1085\n",
" - attack.t1086\n",
" falsepositives:\n",
" - Unkown\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:\"8\" AND process_path.keyword:*\\\\powershell.exe AND target_process_path.keyword:*\\\\rundll32.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
}