mirror of https://github.com/infosecn1nja/HELK.git
127 lines
2.9 KiB
Plaintext
127 lines
2.9 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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"# Firewall Disabled via Netsh\n",
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"Detects netsh commands that turns off the Windows firewall"
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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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"- title: Firewall Disabled via Netsh\n",
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" id: 57c4bf16-227f-4394-8ec7-1b745ee061c3\n",
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" description: Detects netsh commands that turns off the Windows firewall\n",
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" references:\n",
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" - https://www.winhelponline.com/blog/enable-and-disable-windows-firewall-quickly-using-command-line/\n",
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" - https://app.any.run/tasks/210244b9-0b6b-4a2c-83a3-04bd3175d017/\n",
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" date: 2019/11/01\n",
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" status: experimental\n",
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" author: Fatih Sirin\n",
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" tags:\n",
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" - attack.defense_evasion\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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" service: null\n",
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" detection:\n",
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" selection:\n",
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" CommandLine:\n",
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" - netsh firewall set opmode mode=disable\n",
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" - netsh advfirewall set * state off\n",
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" condition: selection\n",
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" falsepositives:\n",
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" - Legitimate administration\n",
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" level: medium\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='process_command_line.keyword:(netsh\\ firewall\\ set\\ opmode\\ mode\\=disable OR netsh\\ advfirewall\\ set\\ *\\ state\\ off)')\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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