mirror of https://github.com/infosecn1nja/HELK.git
144 lines
3.2 KiB
Plaintext
144 lines
3.2 KiB
Plaintext
{
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"cells": [
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"# Usage of Sysinternals Tools\n",
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"Detects the usage of Sysinternals Tools due to accepteula key being added to Registry"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"## Rule Content\n",
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"```\n",
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"- action: global\n",
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" title: Usage of Sysinternals Tools\n",
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" id: 25ffa65d-76d8-4da5-a832-3f2b0136e133\n",
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" status: experimental\n",
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" description: Detects the usage of Sysinternals Tools due to accepteula key being\n",
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" added to Registry\n",
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" references:\n",
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" - https://twitter.com/Moti_B/status/1008587936735035392\n",
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" date: 2017/08/28\n",
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" author: Markus Neis\n",
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" detection:\n",
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" condition: 1 of them\n",
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" falsepositives:\n",
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" - Legitimate use of SysInternals tools\n",
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" - Programs that use the same Registry Key\n",
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" level: low\n",
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"- logsource:\n",
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" product: windows\n",
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" service: sysmon\n",
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" detection:\n",
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" selection1:\n",
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" EventID: 13\n",
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" TargetObject: '*\\EulaAccepted'\n",
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"- logsource:\n",
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" category: process_creation\n",
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" product: windows\n",
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" detection:\n",
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" selection2:\n",
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" CommandLine: '* -accepteula*'\n",
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"\n",
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"```"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"## Querying Elasticsearch"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"### Import Libraries"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": [
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"from elasticsearch import Elasticsearch\n",
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"from elasticsearch_dsl import Search\n",
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"import pandas as pd"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"### Initialize Elasticsearch client"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": [
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"es = Elasticsearch(['http://helk-elasticsearch:9200'])\n",
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"searchContext = Search(using=es, index='logs-*', doc_type='doc')"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"### Run Elasticsearch Query"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": [
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"s = searchContext.query('query_string', query='(event_id:\"13\" AND registry_key_path.keyword:*\\\\EulaAccepted)')\n",
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"response = s.execute()\n",
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"if response.success():\n",
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" df = pd.DataFrame((d.to_dict() for d in s.scan()))"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": [
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"s = searchContext.query('query_string', query='process_command_line.keyword:*\\ \\-accepteula*')\n",
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"response = s.execute()\n",
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"if response.success():\n",
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" df = pd.DataFrame((d.to_dict() for d in s.scan()))"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"### Show Results"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": [
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"df.head()"
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]
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}
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],
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"metadata": {},
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"nbformat": 4,
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"nbformat_minor": 4
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}
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