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

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{
"cells": [
{
"cell_type": "markdown",
"metadata": {},
"source": [
"# Suspicious RUN Key from Download\n",
"Detects the suspicious RUN keys created by software located in Download or temporary Outlook/Internet Explorer directories"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"## Rule Content\n",
"```\n",
"- title: Suspicious RUN Key from Download\n",
" id: 9c5037d1-c568-49b3-88c7-9846a5bdc2be\n",
" status: experimental\n",
" description: Detects the suspicious RUN keys created by software located in Download\n",
" or temporary Outlook/Internet Explorer directories\n",
" references:\n",
" - https://app.any.run/tasks/c5bef5b7-f484-4c43-9cf3-d5c5c7839def/\n",
" author: Florian Roth\n",
" date: 2019/10/01\n",
" tags:\n",
" - attack.persistence\n",
" - attack.t1060\n",
" logsource:\n",
" product: windows\n",
" service: sysmon\n",
" category: null\n",
" detection:\n",
" selection:\n",
" EventID: 13\n",
" Image:\n",
" - '*\\Downloads\\\\*'\n",
" - '*\\Temporary Internet Files\\Content.Outlook\\\\*'\n",
" - '*\\Local Settings\\Temporary Internet Files\\\\*'\n",
" TargetObject: '*\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Run\\\\*'\n",
" condition: selection\n",
" falsepositives:\n",
" - Software installers downloaded and used by users\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:\"13\" AND process_path.keyword:(*\\\\Downloads\\\\* OR *\\\\Temporary\\ Internet\\ Files\\\\Content.Outlook\\\\* OR *\\\\Local\\ Settings\\\\Temporary\\ Internet\\ Files\\\\*) AND registry_key_path.keyword:*\\\\SOFTWARE\\\\Microsoft\\\\Windows\\\\CurrentVersion\\\\Run\\\\*)')\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
}