mirror of https://github.com/infosecn1nja/HELK.git
130 lines
2.9 KiB
Plaintext
130 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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"# Cmdkey Cached Credentials Recon\n",
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"Detects usage of cmdkey to look for cached credentials"
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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: Cmdkey Cached Credentials Recon\n",
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" id: 07f8bdc2-c9b3-472a-9817-5a670b872f53\n",
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" status: experimental\n",
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" description: Detects usage of cmdkey to look for cached credentials\n",
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" references:\n",
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" - https://www.peew.pw/blog/2017/11/26/exploring-cmdkey-an-edge-case-for-privilege-escalation\n",
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" - https://technet.microsoft.com/en-us/library/cc754243(v=ws.11).aspx\n",
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" author: jmallette\n",
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" tags:\n",
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" - attack.credential_access\n",
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" - attack.t1003\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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" Image: '*\\cmdkey.exe'\n",
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" CommandLine: '* /list *'\n",
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" condition: selection\n",
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" fields:\n",
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" - CommandLine\n",
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" - ParentCommandLine\n",
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" - User\n",
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" falsepositives:\n",
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" - Legitimate administrative tasks.\n",
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" level: low\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_path.keyword:*\\\\cmdkey.exe AND process_command_line.keyword:*\\ \\/list\\ *)')\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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