mirror of https://github.com/MISP/misp-book
Dharshan Shaun Ryan
GitHub
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@ -5,3 +5,155 @@ Below you will find various tweaks and tips when integrating 3rd party connector
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## Microsoft Azure Sentinel
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[Azure Sentinel](https://azure.microsoft.com/en-us/services/azure-sentinel/)
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# MISP to Microsoft Graph Security Script
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The script provides clients with MISP instances to migrate threat indicators to the Microsoft Graph Security API.
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For more information on Microsoft Security Graph visit [Microsoft Graph] (https://developer.microsoft.com/en-us/graph)
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## Prerequisites
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Before installing the sample:
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* Install Python 3.x version from https://www.python.org/.
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* To register your application for access to Microsoft Graph, you'll need either a [Microsoft account](https://www.outlook.com/) or an [Office 365 for business account](https://msdn.microsoft.com/en-us/office/office365/howto/setup-development-environment#bk_Office365Account). If you don't have one of these, you can create a Microsoft account for free at [outlook.com](https://www.outlook.com/).
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## Getting Started
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After the prerequisites are installed or met, perform the following steps to use these scripts:
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1. Download or clone this repository.
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1. Go to directory `security-api-solutions/Samples/MISP`
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1. Install dependencies. In the command line, run `pip3 install requests requests-futures pymisp`
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1. To run script, go to the root directory of misp-graph-script and enter `PYTHONHASHSEED=0 python3 script.py` in the command line.
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## App Registration
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To configure the samples, you'll need to register a new application in the Microsoft [Application Registration Portal](https://apps.dev.microsoft.com/).
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### Follow these steps to register a new application:
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1. Sign in to the [Azure Portal](https://portal.azure.com/) using either your personal or work or school account.
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1. Under My Azure Active Directory, choose App registrations (if you are suggested to use the preview, use that) choose New registration.
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1. Enter an application name, and choose Register
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1. Next you'll see the registration page for your app. Copy and save the `Application (client) Id` & `Directory (tenant) ID` field.You will need it later to complete the configuration process.
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1. Under Certificates & secrets, choose `New client secret` and give it a name. A new password will be displayed under Client secrets. Copy this password. This will be your `client secret`. You will need it later to complete the configuration process.
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1. Under Authentication, find Implicit grant choose both `Access tokens` & `ID tokens` and save.
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1. Under API permissions click `Add a permission`, choose Microsoft Graph, under `Application permissions`, under ThreatIndicators add ThreatIndicators.ReadWrite.OwnedBy. You will be taken back to the API permissions screen, click `Grant admin consent for Default Directory`
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>Note: See the [Microsoft Graph permissions reference](https://developer.microsoft.com/en-us/graph/docs/concepts/permissions_reference) for more information about Graph's permission model.
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As the final step in configuring the script, modify the config.py file in the root folder of your cloned repo.
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Update tenent, client_id, and client_secret in config.py
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```
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graph_auth = {
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'tenant': '<tenant id>',
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'client_id': '<client id>',
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'client_secret': '<client secret>',
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}
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```
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Once changes are complete, save the config file.
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## Configurations
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### Target Product
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`targetProduct = "Azure Sentinel"`
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### Misp Event Filter
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Filters can be set in the config.py file under the "misp_event_filters" property
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Below is a list of parameters that can be passed to the filter (source: https://pymisp.readthedocs.io/modules.html):
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* values – values to search for
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* not_values – values not to search for
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* type_attribute – Type of attribute
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* category – Category to search
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* org – Org reporting the event
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* tags – Tags to search for
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* not_tags – Tags not to search for
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* date_from – First date (Format: '2019-01-01')
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* date_to – Last date (Format: '2019-01-01')
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* last – Last published events (for example 5d or 12h or 30m)
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* eventid – Evend ID
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* withAttachments – return events with or without the attachments
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* uuid – search by uuid
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* publish_timestamp – the publish timestamp (Note: Uses UNIX timestamp. Format: '1551811160')
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* published – return only published events (Format: True or False)
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A list or a specific value can be passed to the above parameters. If a list is passed to the parameter, the filtered events are the result of the union of provided list.
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This field needs to be a list that contains multiple filters. The filtered events are the result of the intersection of provided filters.
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#### First Example of How This Field can be Configured
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```
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misp_event_filters = [
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{
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"type_attribute": 'mutex'
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},
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{
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"type_attribute": 'filename|md5'
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},
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]
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```
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An event meets this filtering criteria if the event has an attribute with attribute type of 'mutex' AND the event has an attribute with attribute type of 'filename|md5'.
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#### Second Example of How This Field can be Configured
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```
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misp_event_filters = [
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{
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"type_attribute": ['mutex', 'filename|md5']
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}
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]
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```
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An event meets this filtering criteria if the event has an attribute with attribute type of 'mutex' OR the event has an attribute with attribute type of 'filename|md5'.
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#### Third Example of How This Field can be Configured
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```
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misp_event_filters = [
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{
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"values": 'http://www.test.com'
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}
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]
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```
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An event meets this filtering criteria if the event has an attribute with attribute value of 'http://www.test.com'.
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#### Fourth Example of How This Field can be Configured
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```
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misp_event_filters = []
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```
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This gets all events.
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### Action
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`action = "alert"` (This is default).
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### Passive Only
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`passiveOnly = False` (This is default).
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### Days to Expire
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This property is used to specify the amount of days the records will expire in Microsoft Graph Security API. The default value for days to expire is 30.
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`days_to_expire = 5`
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### Misp Key
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The Misp Auth Key is required to fetch data from your Misp instance.
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Configure a sync user.
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`misp_key = '<misp key>'`
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## Instructions on Reading TiIndicators That Have Been Pushed
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In the command line, run `python3 script.py -r`
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## Instructions on Seeing All Requests That Resulted in Errors
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1. In the command line, run `cd logs` to go to the logs folder.
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2. * To print all the requests that resulted in errors to the console, simply run `cat *_error_*` in the command line.
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* To aggregate all the requests that resulted in errors to a file, run `cat *_error_* > <filename>.txt` in the command line.
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## Script Output
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As the script runs, it prints out the request body sent to the Graph API and the response from the Graph API.
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Every request is logged as a json file under the directory "logs". The name of the json file is the datetime of when the request is completed.
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## Schedule with CRONTAB
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Below is a CRONTAB entry example of running the script every Sunday at 2am
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0 2 * * Sun /home/mark/misp-graph-script/python3 script.sh
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This README.md has been adapted from the README.md found here [Microsoft Graph MISP sample](https://github.com/microsoftgraph/security-api-solutions/blob/master/Samples/MISP/README.md)
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