Microsoft Sentinel: Step by Step Full Tutorial (follow along)

00:54:45
https://www.youtube.com/watch?v=L_EIuIPaVYM

Résumé

TLDRThe webinar provides a detailed overview of building Microsoft Sentinel in one hour, including the prerequisites, configuration of a log analytics workspace, and integration of data sources. Leaders Joe Stalker and Lamar emphasize the importance of Sentinel as a SIEM solution that aggregates alerts from Microsoft Defender and Azure services, incorporating third-party log sources. Attendees learn how to set up data connectors, utilize Kusto Query Language for querying events, and implement automation with rules and playbooks to enhance security operations.

A retenir

  • 🔍 Introduction to Microsoft Sentinel and its capabilities
  • ⚙️ Prerequisites for building Sentinel
  • 📊 Setting up a log analytics workspace
  • 🛠️ Connecting third-party data sources
  • 📈 Using Kusto Query Language (KQL) for querying
  • 📑 Implementing analytic rules for threat detection
  • ⚡ Automating responses through playbooks
  • 🔒 Importance of log retention policies
  • 📅 Overview of free trials and limits in Sentinel
  • 👥 Collaboration with Microsoft for security practices

Chronologie

  • 00:00:00 - 00:05:00

    In the webinar introduction, Joe Stalker, founder of Patriot, highlights the agenda, including an overview of Microsoft Sentinel, prerequisites for building, and a detailed walkthrough on setting up Sentinel.

  • 00:05:00 - 00:10:00

    Joe introduces himself and his team member Lamar, emphasizing their vast experience with Microsoft Sentinel and the support they provide to clients as a Microsoft cybersecurity partner.

  • 00:10:00 - 00:15:00

    Lamar explains the integration of Microsoft Sentinel with Defender services, illustrating how various Microsoft security solutions contribute to a comprehensive security posture.

  • 00:15:00 - 00:20:00

    Lamar discusses the incident lifecycle in Microsoft Sentinel, explaining how an attack usually begins with email and describing the interaction of security services like Defender for Cloud and Defender for Identity during an attack.

  • 00:20:00 - 00:25:00

    Lamar elaborates on integrating third-party log data into Sentinel, mentioning various methods for log ingestion and highlighting the importance of correct configuration for effective monitoring.

  • 00:25:00 - 00:30:00

    Joe outlines the setup process for Microsoft Sentinel, starting with creating a Log Analytics Workspace and setting up the necessary prerequisites like Azure subscriptions and permissions.

  • 00:30:00 - 00:35:00

    The team discusses the importance of setting data caps during the evaluation period, helping to avoid unexpected charges as users familiarize themselves with Sentinel.

  • 00:35:00 - 00:40:00

    Joe details the process of installing data connectors for Azure activity logs and Microsoft 365 audit logs from the Content Hub, emphasizing the distinction between free and paid data sources.

  • 00:40:00 - 00:45:00

    In the setup process, Joe highlights the configuration of various data connectors, including necessary permissions, and mentions how to ensure only alerts are ingested during the evaluation phase.

  • 00:45:00 - 00:54:45

    The session wraps up by discussing automation rules and playbooks in Sentinel, showcasing how these features allow users to automate responses and orchestration within their security operations.

Afficher plus

Carte mentale

Vidéo Q&R

  • What is Microsoft Sentinel?

    Microsoft Sentinel is a cloud-native security information and event management (SIEM) solution that provides intelligent security analytics and threat intelligence across the enterprise.

  • What are the prerequisites for building Sentinel?

    You need an active Azure subscription, contributor role access to the subscription, and a Global administrator account for certain Microsoft logs.

  • How does Microsoft Sentinel integrate with XDR?

    Sentinel serves as a single pane of glass for alerts and data from Microsoft Defender and Azure services, enabling correlation of security data across various platforms.

  • What data connectors can be utilized with Microsoft Sentinel?

    You can utilize data connectors for Azure activity logs, Microsoft 365 Defender alerts, and several third-party sources, including firewalls and identity protection services.

  • Can third-party logs be integrated into Sentinel?

    Yes, Sentinel can pull in logs from third-party sources via APIs, Syslog, or other methods such as using the Log Analytics agent.

  • What is KQL and why is it important?

    Kusto Query Language (KQL) is used for querying data in Azure's log analytics and Sentinel, facilitating complex queries to analyze logs.

  • How can automation be implemented in Sentinel?

    Automation can be set through automation rules and playbooks, enabling orchestration of responses to security incidents.

  • How long can Sentinel retain logs?

    By default, Sentinel retains logs for 30 days, but you can extend this to 90 days at no extra cost.

  • What are analytic rules in Sentinel?

    Analytic rules in Sentinel are predefined queries that detect unusual behavior, threats, or security incidents based on the incoming logs.

  • How can one start using Microsoft Sentinel?

    One can start using Microsoft Sentinel by creating a free Azure account and following guidance for setting up log analytics and Sentinel.

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Sous-titres
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Défilement automatique:
  • 00:00:02
    welcome to today's webinar on building
  • 00:00:04
    Sentinel in one hour we'll go ahead and
  • 00:00:07
    go through the agenda here so we'll give
  • 00:00:09
    you an overview of
  • 00:00:10
    Sentinel uh we'll discuss the
  • 00:00:12
    prerequisites for building uh Sentinel
  • 00:00:16
    and then uh you'll be following along as
  • 00:00:19
    we actually go through all the steps uh
  • 00:00:21
    just by way of introduction my name is
  • 00:00:23
    Joe stalker I'm the founder and CEO of
  • 00:00:25
    patriot um so I started Patriot um
  • 00:00:27
    almost 10 years ago and uh have written
  • 00:00:30
    a book on securing Microsoft
  • 00:00:33
    365 I also help lead our managed uh
  • 00:00:36
    Sentinel practice which is uh 247 xdr uh
  • 00:00:41
    service
  • 00:00:42
    offering and I'm joined today uh by
  • 00:00:45
    Lamar no Lamar would you mind um sharing
  • 00:00:47
    a little bit about yourself hi everyone
  • 00:00:50
    nice to have you on today my name's
  • 00:00:52
    Lamar now um been working in Microsoft
  • 00:00:55
    Consulting for several years it's a
  • 00:00:57
    passion of mine to especially around the
  • 00:00:59
    senal
  • 00:01:00
    area um it's been a fun learning
  • 00:01:02
    experience and always learning something
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    new a little bit more about Patriots so
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    we are a Microsoft cyber security
  • 00:01:08
    partner uh we partner very closely with
  • 00:01:10
    Microsoft it's the only partner we have
  • 00:01:13
    and uh they've ranked this one of their
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    top three Partners in the US uh based on
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    the number of uh projects uh that we've
  • 00:01:19
    completed about 2,000 since
  • 00:01:22
    2015 uh last year we deployed over 4
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    million seats of the defender xdr stack
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    and on average we're helping close to 4
  • 00:01:29
    400 clients per year and we do offer a a
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    247 sock uh so if you for example build
  • 00:01:36
    Sentinel and and you need help after
  • 00:01:38
    hours or weekend or even frankly during
  • 00:01:41
    the day but you know we do offer a a
  • 00:01:43
    weekend and after hour um coverage plan
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    as well uh but we can help uh monitor
  • 00:01:49
    your Sentinel that you
  • 00:01:51
    build uh Lamar would you mind just
  • 00:01:53
    giving us a high level overview of you
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    know what kind of stuff feeds into
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    Microsoft Sentinel especially as it
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    relates to what Microsoft refers to is
  • 00:02:02
    their uh their xdr
  • 00:02:04
    service yeah thanks Joe so yeah Sentinel
  • 00:02:08
    is your single pane of glass for for all
  • 00:02:12
    things in the Microsoft uh Defender
  • 00:02:15
    Suite as well as your Azure side of the
  • 00:02:18
    house so if we notice here right we have
  • 00:02:20
    all the all the SAS apps fly come into a
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    Defender for cloud apps we have M365
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    Defender for endpoint Defender for
  • 00:02:29
    identity that it's kind of your Defender
  • 00:02:30
    stack you can of course see these things
  • 00:02:33
    in your Defender xdr portal um there's
  • 00:02:36
    there's some interesting and and
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    exciting things happening on the
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    combination of Sentinel and xdr these
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    days too which we can get to later we
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    also have the entra ID side of the house
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    where it's your proactive uh protections
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    on your identities so all that can flow
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    into your Defender xdr but then we also
  • 00:02:55
    have the all the Azure stuff right your
  • 00:02:58
    your VMS your cloud your SQL your app
  • 00:03:01
    Services those things also generate
  • 00:03:04
    alerts those alerts need to be managed
  • 00:03:07
    they need to be investigated and
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    preferably automated as well so those
  • 00:03:13
    things are powered by Defender for cloud
  • 00:03:15
    but then really the the main way to deal
  • 00:03:18
    with those the best way is to make sure
  • 00:03:20
    they come over to Sentinel and that's
  • 00:03:22
    where you have all of your supporting
  • 00:03:24
    data as well you can have correlation
  • 00:03:27
    across identities end points Cloud you
  • 00:03:31
    can really see the full picture of of an
  • 00:03:33
    entire incident from one
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    spot
  • 00:03:37
    awesome so walk us through like a a
  • 00:03:40
    typical you know security event and how
  • 00:03:42
    that would kind of play out in
  • 00:03:45
    Sentinel yeah so this is a great slide
  • 00:03:47
    for that as we know most attacks start
  • 00:03:50
    with email so there's an email that
  • 00:03:53
    comes in uh that's where we have our
  • 00:03:55
    Defender for office right can can start
  • 00:03:58
    tracking that hopefully blocking it
  • 00:04:00
    right at the beginning um if that
  • 00:04:02
    doesn't happen something gets clicked on
  • 00:04:05
    and there's there's something that gets
  • 00:04:07
    installed on an
  • 00:04:08
    endpoint um that endpoint can either be
  • 00:04:11
    for example a user's laptop or it could
  • 00:04:14
    be a VM in Azure so depending on where
  • 00:04:17
    that's at you have Defender for cloud
  • 00:04:19
    you have Defender for endpoint there to
  • 00:04:21
    catch that as
  • 00:04:22
    well moving on if that user's identity
  • 00:04:25
    gets compromised you'll have Defender
  • 00:04:28
    for identity
  • 00:04:30
    that's where we can uh track your active
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    directory side of the house to see uh
  • 00:04:35
    what type of lateral movement attempts
  • 00:04:37
    they having what are they doing with
  • 00:04:40
    those
  • 00:04:41
    identities um you also have across the
  • 00:04:44
    top there Defender for cloud apps so you
  • 00:04:47
    know did they access sensitive data did
  • 00:04:50
    they exfiltrate it um another path is
  • 00:04:53
    instead of active directory if they come
  • 00:04:55
    in from the ENT side that's that top
  • 00:04:57
    gray area there we have identity
  • 00:05:00
    protection there as well so that's
  • 00:05:02
    another area that we can we can block
  • 00:05:04
    and make sure that that we stop them at
  • 00:05:05
    that level and you have Defender for iot
  • 00:05:09
    so it's growing and growing a new area
  • 00:05:11
    of of attacks for a lot of Bad actors so
  • 00:05:16
    Defender also can integrate into your
  • 00:05:18
    iot and OT
  • 00:05:20
    environments and if an incident touches
  • 00:05:23
    all of these you'll get the entire
  • 00:05:25
    picture right from Sentinel so of course
  • 00:05:27
    we want to block it proactively this
  • 00:05:29
    Paints the entire picture for us got it
  • 00:05:32
    so so the xdr stack it's all the
  • 00:05:35
    prevention capabilities as well as
  • 00:05:37
    detection capabilities and then that's
  • 00:05:39
    flowing into Microsoft Sentinel which is
  • 00:05:41
    a Sim solution uh what what about uh
  • 00:05:45
    third party sources how do we get those
  • 00:05:47
    in yeah so if it produces logs we can
  • 00:05:50
    bring it in right so depending on the
  • 00:05:53
    third party itself uh many many third
  • 00:05:56
    parties are are giving us access to apis
  • 00:06:00
    where Sentinel can go and pull the logs
  • 00:06:03
    um that makes it pretty easy generate an
  • 00:06:05
    authorization a key and depending on the
  • 00:06:08
    vendor you know may need a couple more
  • 00:06:10
    pieces of data and once we have that we
  • 00:06:12
    pull data in there's another way of
  • 00:06:15
    doing it is through your uh if they
  • 00:06:17
    produce CIS log or CF type data those
  • 00:06:21
    are more commonly used for things like
  • 00:06:24
    firewalls
  • 00:06:25
    switches uh and those types of things if
  • 00:06:29
    it produces those datas we can use a CIS
  • 00:06:31
    log forwarder to then uh install Arc and
  • 00:06:35
    the AMA agent on there and that will
  • 00:06:37
    forward them off to Sentinel in a secure
  • 00:06:40
    manner 443 encrypted over the over the
  • 00:06:43
    internet to Sentinel you can also do it
  • 00:06:46
    a couple other ways but you can do it
  • 00:06:49
    via uh private space as well so there's
  • 00:06:53
    there's tons of options however that log
  • 00:06:55
    gets created even if it's a flat file
  • 00:06:57
    somewhere Sentinel can pick it up your
  • 00:06:59
    machine produce files we can bring those
  • 00:07:01
    in so wherever the log happens to be
  • 00:07:03
    created or exist we can grab
  • 00:07:05
    it so today you know just for um you
  • 00:07:09
    know building out Sentinel getting data
  • 00:07:11
    to flow uh we'll show you how to pull
  • 00:07:13
    data in using just the native data
  • 00:07:15
    connectors from the uh xdr stack so um
  • 00:07:18
    the Azure activity logs uh we'll show
  • 00:07:21
    you how to bring in um all of these um
  • 00:07:25
    you know xdr uh components so those will
  • 00:07:28
    come in show you to bring in the Office
  • 00:07:30
    365
  • 00:07:32
    logs and uh so these are currently the
  • 00:07:35
    the the free sources right the alert
  • 00:07:38
    data um we'll also bring in the
  • 00:07:40
    Microsoft inro logs uh we'll show you
  • 00:07:42
    how to do that and uh so that'll that'll
  • 00:07:45
    kind of get you started today with your
  • 00:07:46
    Sentinel setup now you'll notice
  • 00:07:49
    Microsoft Sentinel sits on top of a
  • 00:07:53
    what's called a log analytics
  • 00:07:55
    workspace so that'll be the very first
  • 00:07:58
    thing we create today that's kind of the
  • 00:08:01
    you know this is the solution that pulls
  • 00:08:03
    all the logs into it and then Sentinel
  • 00:08:06
    is kind of that solution that reasons
  • 00:08:08
    over it and also provides uh security
  • 00:08:12
    orchestration and response and
  • 00:08:14
    automation uh so we'll kind of walk
  • 00:08:16
    through that today as well so some of
  • 00:08:18
    the
  • 00:08:19
    prerequisites uh to build your Sentinel
  • 00:08:22
    environment you will need an active
  • 00:08:24
    Azure
  • 00:08:25
    subscription um if you don't have one uh
  • 00:08:29
    we paste this link here uh in the chat
  • 00:08:32
    for you to be able to to get started and
  • 00:08:35
    and create one uh but this will be a a
  • 00:08:38
    prerequisite and again don't worry if
  • 00:08:40
    you don't have that uh Azure
  • 00:08:42
    subscription right this moment again
  • 00:08:43
    this meeting is recorded so you can
  • 00:08:46
    simply uh when you get the recording you
  • 00:08:49
    can then follow along um but if you um
  • 00:08:52
    wanted to you can actually check out
  • 00:08:54
    this quick start great little
  • 00:08:56
    guide to get your Sentinel uh up and
  • 00:08:58
    running so so we'll kind of um you know
  • 00:09:01
    start there
  • 00:09:03
    today if you want to bring in the
  • 00:09:05
    Microsoft audit logs from say SharePoint
  • 00:09:09
    and one drive and teams and email then
  • 00:09:13
    you will need a uh Global administrator
  • 00:09:17
    account to a Microsoft tenant now if you
  • 00:09:21
    don't have a like a lab tenant or if
  • 00:09:23
    you're okay in in installing and
  • 00:09:25
    production you know since again this is
  • 00:09:27
    just read only we're just getting the
  • 00:09:28
    logs not going to affect anything in in
  • 00:09:32
    your production environment um then you
  • 00:09:34
    can certainly do that with your um you
  • 00:09:37
    know production
  • 00:09:38
    environment so if you do follow the
  • 00:09:41
    principle of lease privilege you know
  • 00:09:43
    the role-based access controls um at a
  • 00:09:46
    minimum within your Azure
  • 00:09:48
    subscription you're going to need a uh
  • 00:09:51
    the contributor role um at the
  • 00:09:54
    subscription level in which Microsoft
  • 00:09:56
    Sentinel workspace is going to reside so
  • 00:09:58
    that would be like one permission now if
  • 00:10:01
    if you spin up your own kind of lab
  • 00:10:03
    environment and you have an Azure
  • 00:10:05
    subscription created you're already
  • 00:10:07
    going to have the owner permission so
  • 00:10:10
    this principle of lease privilege is
  • 00:10:11
    just for those of you that really need
  • 00:10:13
    to follow very strict you know
  • 00:10:15
    permission
  • 00:10:16
    modeling you'll need the uh Sentinel
  • 00:10:18
    contributor or Microsoft Sentinel reader
  • 00:10:20
    permissions on the resource Group uh
  • 00:10:23
    that the workspace the log analytics
  • 00:10:25
    workspace belongs to so those are uh the
  • 00:10:28
    prere
  • 00:10:30
    so today um we're going to show you how
  • 00:10:34
    to set up Sentinel which consists of
  • 00:10:36
    creating a log analytics
  • 00:10:38
    workspace adding Sentinel on top of that
  • 00:10:42
    workspace then we're going to start to
  • 00:10:44
    show you how to pull data in uh using
  • 00:10:46
    the content Hub which is kind of like a
  • 00:10:48
    catalog of over 300 different sources so
  • 00:10:52
    if you have like paloo or foret or
  • 00:10:56
    Cisco um you know those kinds of uh
  • 00:10:59
    connectors you know you can pull those
  • 00:11:01
    in there we'll show you how to manage
  • 00:11:03
    the data
  • 00:11:05
    connector and then deploying the
  • 00:11:06
    analytic rules is typically The Next
  • 00:11:09
    Step um we'll also show you how to
  • 00:11:11
    enable the user and entity behavior um
  • 00:11:14
    analytics and anomaly
  • 00:11:16
    detections we'll go over some kql Basics
  • 00:11:19
    and some basic incident manage
  • 00:11:21
    management and then some reporting
  • 00:11:23
    Basics so that's really what's on the
  • 00:11:26
    agenda uh for today so to get started to
  • 00:11:29
    set up Microsoft Sentinel you'll browse
  • 00:11:32
    to portal. azure.com
  • 00:11:35
    and again uh feel feel free to follow
  • 00:11:38
    along so I'm here in Portal azure.com so
  • 00:11:41
    up in the top you'll type in um Sentinel
  • 00:11:45
    and you'll search for Microsoft
  • 00:11:48
    Sentinel you'll notice I have a couple
  • 00:11:50
    of these um lab environments already
  • 00:11:53
    here but for you it should be probably
  • 00:11:55
    blank unless you've also got one uh
  • 00:11:58
    created so so you're going to go and
  • 00:11:59
    click on
  • 00:12:01
    Create and uh the first thing that
  • 00:12:03
    you're going to do is create a new
  • 00:12:05
    workspace because again Sentinel sits on
  • 00:12:08
    top of uh log
  • 00:12:11
    analytics you'll choose your
  • 00:12:13
    subscription that hopefully you have
  • 00:12:14
    access to if not you'll need to create a
  • 00:12:16
    subscription and again you'll follow
  • 00:12:17
    that quick start guide that we put in
  • 00:12:19
    the chat uh for you we do recommend
  • 00:12:23
    creating a resource Group a fresh clean
  • 00:12:26
    Resource Group uh for this to be cre in
  • 00:12:30
    so we'll give it like a acronym like
  • 00:12:33
    RG and then um you know Sentinel lab
  • 00:12:39
    three okay and of course you can follow
  • 00:12:41
    your own naming convention
  • 00:12:43
    there and uh so that's the name of the
  • 00:12:46
    resource Group and then the log
  • 00:12:47
    analytics workspace I'll call it like
  • 00:12:49
    log
  • 00:12:52
    analytics
  • 00:12:54
    Sentinel
  • 00:12:57
    three and then we'll just go Ahad and
  • 00:12:59
    click on review and
  • 00:13:01
    create now creating this log analytics
  • 00:13:04
    workspace um should only take 10 seconds
  • 00:13:08
    or so should be pretty quick you can
  • 00:13:10
    kind of monitor the progress
  • 00:13:13
    here once this uh gets created we'll
  • 00:13:16
    actually go back to
  • 00:13:18
    Sentinel and then we'll add Sentinel
  • 00:13:20
    into this uh log analytics
  • 00:13:27
    workspace yeah Joe so starting this here
  • 00:13:29
    gives us the the 30-day free trial right
  • 00:13:32
    that's a great point so you'll have 31
  • 00:13:34
    days to evaluate and one of the very
  • 00:13:37
    first things we're going to do is we're
  • 00:13:39
    going to show you um how to enable a uh
  • 00:13:46
    a data cap um because one of the really
  • 00:13:49
    important things during your 31-day free
  • 00:13:51
    trial is um you want to make sure you
  • 00:13:55
    know that you're not uh exceeding what
  • 00:13:57
    is free so what's is they're going to
  • 00:13:59
    give you the first 10 gigs per day of
  • 00:14:02
    ingestion so we can set a cap so that
  • 00:14:07
    Sentinel will stop ingesting data once
  • 00:14:10
    it reaches the 10 gig that way you don't
  • 00:14:13
    get any surprise charges now once you're
  • 00:14:16
    ready to go into production obviously
  • 00:14:18
    you'll want to you know remove that cap
  • 00:14:20
    so that way you're able to
  • 00:14:22
    get you know all the alerts that you
  • 00:14:24
    need to but uh yeah so to set the cap
  • 00:14:28
    you go down to in your log analytics
  • 00:14:30
    workspace you go to usage and estimated
  • 00:14:32
    costs then you go to daily cap you'll
  • 00:14:36
    turn on the
  • 00:14:39
    cap and
  • 00:14:42
    uh this is because we haven't created
  • 00:14:45
    The Sentinel instance on it so I skipped
  • 00:14:47
    uh one step so inside of Sentinel when
  • 00:14:50
    we go back to Sentinel we're going to
  • 00:14:52
    now create Sentinel and we're going to
  • 00:14:54
    put it on top of that log analy
  • 00:14:56
    workspace and then we'll be able to
  • 00:14:57
    create the data cap so I'm going to go
  • 00:14:59
    go ahead and go to create here I'm going
  • 00:15:01
    to choose that new um workspace that I
  • 00:15:04
    created in the previous step going to
  • 00:15:06
    click add again this should take about
  • 00:15:09
    seven to 10 seconds here it's pretty
  • 00:15:11
    quick for this to get created to get
  • 00:15:13
    added into that okay that's done now in
  • 00:15:16
    order to get to the data cap section
  • 00:15:18
    we're going to go down to settings at
  • 00:15:20
    the
  • 00:15:21
    bottom then we're going to click on
  • 00:15:22
    workspace
  • 00:15:24
    settings usage and estimated costs
  • 00:15:29
    uh daily cap now we can turn on that
  • 00:15:32
    daily cap okay so we're going to set it
  • 00:15:34
    to 10 gig so that'll be the cap another
  • 00:15:37
    thing kind of worth pointing out is the
  • 00:15:39
    retention policy so by default when you
  • 00:15:43
    first create uh log
  • 00:15:45
    analytics um it's going to retain your
  • 00:15:47
    logs for 30 days but Microsoft actually
  • 00:15:51
    gives you an additional 60 days for free
  • 00:15:53
    when you're using Sentinel on top of log
  • 00:15:55
    analytics so to take advantage of that
  • 00:15:58
    just bump that up to 90 there's no
  • 00:15:59
    additional fee to do that um so that is
  • 00:16:02
    a good practice to to take advantage of
  • 00:16:04
    and you know if you have any regulatory
  • 00:16:07
    requirements um you know you may need to
  • 00:16:09
    go longer so for example PCI the payment
  • 00:16:12
    card industry um I last I checked they
  • 00:16:15
    want you to keep your security logs for
  • 00:16:17
    one year so that you'd go ahead and bump
  • 00:16:19
    that up now once you go above 90 days
  • 00:16:22
    you know there there are some additional
  • 00:16:24
    uh costs for log retention past 90 days
  • 00:16:27
    and you could read about that in the
  • 00:16:29
    learn more length there but I'll just go
  • 00:16:31
    ahead and set that to
  • 00:16:33
    90 Okay so we've got our uh data cap set
  • 00:16:38
    now what we want to talk about next is
  • 00:16:41
    the um now that we've created the log
  • 00:16:44
    analytics workspace we've enabled
  • 00:16:46
    Sentinel we've set the data cap and the
  • 00:16:49
    retention policy the next step is to
  • 00:16:51
    import some content from the content Hub
  • 00:16:55
    now what we recommend enabling are what
  • 00:16:58
    are called the always free data sources
  • 00:17:01
    so your Azure activity
  • 00:17:05
    logs your Office 365 audit logs which
  • 00:17:08
    include SharePoint exchange and and
  • 00:17:11
    teams and the uh security alerts from
  • 00:17:15
    the Microsoft Defender xdr stack so all
  • 00:17:18
    of these Defender xdr products all the
  • 00:17:20
    alerts uh from these products those are
  • 00:17:22
    all free so in the content Hub you'll
  • 00:17:25
    search um for each of these so azure
  • 00:17:28
    acity Microsoft
  • 00:17:30
    365 Defender xdr and then you'll just
  • 00:17:34
    simply click the install button and
  • 00:17:37
    that'll start uh pulling that data in or
  • 00:17:40
    at least getting the connector installed
  • 00:17:42
    there's a second step to uh to pull the
  • 00:17:45
    data in but let's start there so we're
  • 00:17:47
    going to find the Azure audit logs first
  • 00:17:51
    by going over to getting back into
  • 00:17:54
    Sentinel we'll refresh here we'll get
  • 00:17:56
    into our new lab
  • 00:18:00
    and it's this is where it's telling you
  • 00:18:01
    the free trial's been activated um
  • 00:18:04
    you'll have some time and uh you
  • 00:18:08
    know we set that cap so no worries there
  • 00:18:11
    so we go down to Content
  • 00:18:13
    Hub and we'll go ahead and search for
  • 00:18:16
    the
  • 00:18:18
    um Azure activity which is shown
  • 00:18:21
    here we'll go Ahad and install
  • 00:18:24
    that it should take about 5 seconds or
  • 00:18:27
    so to install it's usually pretty
  • 00:18:33
    quick that's installed now we're going
  • 00:18:35
    to look for the uh
  • 00:18:38
    Microsoft uh
  • 00:18:42
    365 and this one's pretty quick as well
  • 00:18:44
    should be about 5 seconds or so and
  • 00:18:47
    install
  • 00:18:50
    that and uh while this is installing
  • 00:18:53
    you'll notice some details in the
  • 00:18:55
    content Hub um this particular content
  • 00:18:58
    pack
  • 00:18:59
    includes 15 analytics rules a data
  • 00:19:02
    connector uh 21 hunting queries and
  • 00:19:05
    three
  • 00:19:06
    workbooks um we're going to discuss
  • 00:19:09
    analytic rules and workbooks um here in
  • 00:19:11
    a
  • 00:19:11
    moment uh but installing the content Hub
  • 00:19:15
    basically creates a data connector and
  • 00:19:18
    data connectors you know we we'll go and
  • 00:19:20
    configure those in a moment we have one
  • 00:19:22
    more to uh configure here which is the
  • 00:19:25
    uh the defender
  • 00:19:27
    xdr uh
  • 00:19:29
    component so we'll go and install this
  • 00:19:32
    say install yeah and a common thing
  • 00:19:34
    there Joe is clients will ask well just
  • 00:19:37
    by installing that are the logs flowing
  • 00:19:41
    now what would we say to that yeah so we
  • 00:19:44
    need to go into the connector and um
  • 00:19:46
    configure each of those connectors and
  • 00:19:48
    that allows you to choose like we were
  • 00:19:51
    talking about before you know when we're
  • 00:19:54
    configuring this um this xdr connector
  • 00:19:58
    if we want the only the free data
  • 00:20:00
    sources we need to make sure we only get
  • 00:20:02
    the security alerts and maybe not like
  • 00:20:05
    the the raw data from say Defender for
  • 00:20:08
    endpoint so the raw data like the
  • 00:20:10
    registry changes the network events you
  • 00:20:13
    know that stuff's not free but the
  • 00:20:15
    alerts coming from Defender for endpoint
  • 00:20:17
    uh would be free so that next step um
  • 00:20:20
    that Lamar is kind of bringing up there
  • 00:20:21
    that's what we'll uh configure
  • 00:20:24
    next now I want to I want to bring in a
  • 00:20:27
    fourth connector um that I that I feel
  • 00:20:29
    is pretty important um so the Microsoft
  • 00:20:32
    entra ID connector this is super
  • 00:20:35
    important because most of the alerts
  • 00:20:37
    that we're investigating in our sock
  • 00:20:39
    typically are attacks against the
  • 00:20:41
    identity so I do recommend bring this
  • 00:20:44
    one in now just be advised you know the
  • 00:20:47
    um data from Microsoft entri ID is is
  • 00:20:49
    not free um after your 31 Day free tral
  • 00:20:53
    you know during your 31-day free tral
  • 00:20:55
    you know there's there's no cost to this
  • 00:20:57
    but after that um if you're continuing
  • 00:20:59
    to use sentinel um you know you'll need
  • 00:21:03
    to look at the uh costs uh for this
  • 00:21:06
    table which you can do under under
  • 00:21:07
    settings it'll show you the cost um but
  • 00:21:10
    that'll be something to kind of keep in
  • 00:21:11
    mind here but I'm going to go ahead and
  • 00:21:12
    install the Microsoft entri ID connector
  • 00:21:15
    because I do feel like that one's pretty
  • 00:21:16
    important that's going to give us our
  • 00:21:18
    signin logs um
  • 00:21:21
    our um you know different uh attacks
  • 00:21:25
    against the identity you'll notice that
  • 00:21:27
    there's 63 three analytics
  • 00:21:30
    rules that come with this
  • 00:21:32
    particular uh connector okay so let's
  • 00:21:35
    actually go in
  • 00:21:37
    and uh you know configure a data
  • 00:21:39
    connector here so in the data connectors
  • 00:21:42
    uh the ones that we've installed are are
  • 00:21:44
    showing here so if I wanted to like
  • 00:21:46
    configure for example the you know
  • 00:21:48
    Microsoft entry
  • 00:21:49
    ID come in here to open the connector
  • 00:21:54
    page it's going to check our permissions
  • 00:21:56
    make sure that we have permissions to
  • 00:21:58
    the tenant that we're you know bringing
  • 00:22:00
    the signin data uh from of course that
  • 00:22:02
    makes you know perfect sense and then um
  • 00:22:06
    you uh you also do need uh access to the
  • 00:22:10
    uh Microsoft entra diagnostic settings
  • 00:22:12
    so you would come in here and check all
  • 00:22:14
    these boxes uh to enable that
  • 00:22:17
    connector similarly you'll go through
  • 00:22:19
    each of these connectors and you'll
  • 00:22:21
    check the boxes like you know if you
  • 00:22:23
    want to bring in the exchange logs the
  • 00:22:24
    SharePoint logs the team logs you'd hit
  • 00:22:27
    apply and then it's going to start
  • 00:22:28
    bringing in uh that log data so just
  • 00:22:32
    kind of repeat that for each of these go
  • 00:22:33
    through them uh enable uh the settings
  • 00:22:36
    you know on
  • 00:22:37
    those and once those once the data is
  • 00:22:41
    Flowing the next thing to do if we kind
  • 00:22:43
    of go back to our menu
  • 00:22:45
    here is to deploy the analytic rules and
  • 00:22:50
    uh ubaa so let's actually talk about
  • 00:22:53
    that so the first thing I'll do is I'll
  • 00:22:57
    go ahead and go down to settings and
  • 00:23:01
    I'll show you where the uh the ubaa is
  • 00:23:04
    so um user and entity Behavior analytics
  • 00:23:07
    um this is going to let you know that
  • 00:23:09
    there's okay there's anomalies related
  • 00:23:11
    to uh a user or you know uh an entity's
  • 00:23:14
    Behavior it's using machine learning
  • 00:23:16
    models it's looking at pure analysis uh
  • 00:23:20
    blast radius and uh it's really great at
  • 00:23:22
    detecting uh behavioral anomalies so you
  • 00:23:25
    just simply come in here and you click
  • 00:23:27
    the set button and then you come in and
  • 00:23:29
    enable it for the um sources so once you
  • 00:23:33
    um you know turn it
  • 00:23:34
    on um in our case we're using Microsoft
  • 00:23:37
    enter ID as a is a cloud only kind of
  • 00:23:39
    tenant uh if you do use uh Defender for
  • 00:23:43
    identity uh against your on premise
  • 00:23:45
    active directory then you can go ahead
  • 00:23:47
    and check active directory as well okay
  • 00:23:51
    uh you would hit apply um and then you
  • 00:23:54
    enable these that effectively enables
  • 00:23:57
    these log sources for for
  • 00:23:59
    ubaa you'll notice anomalies is already
  • 00:24:01
    on by default um there so now we get
  • 00:24:05
    into um the topic of analytics rules now
  • 00:24:08
    what is an analytic rule uh if we come
  • 00:24:10
    over here to the templates what we're
  • 00:24:12
    noticing here is we've got already uh 63
  • 00:24:17
    analytic
  • 00:24:18
    rules but they're all off by default
  • 00:24:21
    notice that they're not enabled so
  • 00:24:25
    there's two ways to get these enabled
  • 00:24:27
    you can kind of go through them one by
  • 00:24:29
    one and enable them so if I can select
  • 00:24:31
    one like login attempts to disabled
  • 00:24:35
    accounts so if I create this rule
  • 00:24:38
    because I want to be notified if
  • 00:24:39
    someone's attempting to sign into a
  • 00:24:41
    disabled account I have an opportunity
  • 00:24:44
    to uh to review uh you know what's going
  • 00:24:48
    to happen now by default Microsoft kind
  • 00:24:49
    of assigns their own severity levels so
  • 00:24:51
    they're going to say that if somebody
  • 00:24:53
    signs into a disabled account that's a
  • 00:24:55
    medium now you can override that here as
  • 00:24:58
    your publishing this rule if you like
  • 00:25:00
    you also notice that it's um indexed
  • 00:25:03
    against the miter attack uh framework so
  • 00:25:06
    this is kind of a lexicon of hacker
  • 00:25:08
    techniques and tactics um and there's a
  • 00:25:11
    purpose for doing this mapping so that
  • 00:25:13
    you can visualize it later uh which will
  • 00:25:16
    show you how to
  • 00:25:17
    do but then the analytic rule is using
  • 00:25:21
    kql so csto query language uh to search
  • 00:25:25
    the logs for certain Behavior so it's
  • 00:25:28
    looking um at as an example for signin
  • 00:25:33
    events where the result type is
  • 00:25:36
    50057 which means you know the the user
  • 00:25:39
    account is disabled so someone is
  • 00:25:41
    attempting to sign into disabled
  • 00:25:43
    accounts and then it's summarizing that
  • 00:25:45
    and uh and mapping that so when the
  • 00:25:48
    security analyst goes into to look at
  • 00:25:50
    the incident later um the log data is
  • 00:25:53
    then mapped to uh entity data for easy
  • 00:25:56
    triaging for the analyst
  • 00:25:59
    now you'll notice by default the query
  • 00:26:01
    would run every one days but you can
  • 00:26:02
    override that and have that run as
  • 00:26:04
    frequently as say uh every five minutes
  • 00:26:08
    if you need it to run more frequently uh
  • 00:26:10
    than every five minutes you can do so um
  • 00:26:13
    by simply querying or copying this data
  • 00:26:16
    so I can copy this I can hit cancel and
  • 00:26:19
    I can create my own what's called a a
  • 00:26:21
    near real time query so in near real
  • 00:26:24
    time instead of running it on a
  • 00:26:26
    scheduled basis like every five minutes
  • 00:26:28
    a near realtime query rule is going to
  • 00:26:29
    run it nearly instantaneously so I can
  • 00:26:31
    say you know notify if someone signs
  • 00:26:36
    into a disabled
  • 00:26:38
    account right I go next and then here I
  • 00:26:42
    paste the
  • 00:26:44
    query validates the query and then on
  • 00:26:47
    the incident notice that I don't run it
  • 00:26:50
    every five minutes because it's simply
  • 00:26:51
    going to run in uh near real time now I
  • 00:26:54
    believe you can have up to 50 uh near
  • 00:26:56
    real time rules in any one instance so
  • 00:26:59
    use them carefully because you only have
  • 00:27:01
    50 whereas the uh scheduled rules you
  • 00:27:05
    can have up to 512 of these and we're
  • 00:27:08
    not even scratching the surface with the
  • 00:27:11
    63 uh that we've uh imported from the
  • 00:27:14
    content Hub but if I want to go back and
  • 00:27:17
    and and finish the uh the sequence of
  • 00:27:19
    you know getting this thing published
  • 00:27:21
    here let's say I was satisfied with
  • 00:27:23
    running it every five
  • 00:27:25
    minutes I'm going to go ahead and go
  • 00:27:27
    next
  • 00:27:29
    and then you'll notice your automated
  • 00:27:31
    response if this was the kind of
  • 00:27:33
    activity that you wanted something to
  • 00:27:35
    happen like hey I wanted to send me a
  • 00:27:37
    teams message or an email whenever that
  • 00:27:40
    event occurs this is where you would
  • 00:27:43
    actually have an automation rule um be
  • 00:27:45
    applied you know based on that activity
  • 00:27:47
    so that can just kind of run behind the
  • 00:27:49
    scenes um other automation rules that
  • 00:27:52
    you might consider would be you know if
  • 00:27:54
    this was some kind of a malware incident
  • 00:27:56
    maybe you want to automate you know
  • 00:27:58
    disabling um or I'm sorry isolating that
  • 00:28:01
    machine or running an AV scan or
  • 00:28:03
    something like that so A bunch of stuff
  • 00:28:05
    you can automate uh Lamar will kind of
  • 00:28:07
    go through automation here uh once I
  • 00:28:11
    finish up my sequence I'll hand it over
  • 00:28:13
    him he'll kind of show how to create a
  • 00:28:14
    Playbook and how that ties
  • 00:28:17
    in okay so I'm going to go ahead and
  • 00:28:20
    save that now it would be pretty tedious
  • 00:28:24
    to go through all 63 one at a
  • 00:28:29
    time to activate all of them that'd be
  • 00:28:32
    kind of tedious right so what we've done
  • 00:28:35
    here is we've actually found a
  • 00:28:38
    script uh where you can now Mass enable
  • 00:28:41
    those uh analytic
  • 00:28:44
    rules uh I created a a URL shortener
  • 00:28:48
    link um that actually takes you to this
  • 00:28:50
    full article um so for the purposes of
  • 00:28:55
    this um which I knew I had a security
  • 00:28:58
    uh audience here that they wouldn't just
  • 00:29:01
    you know click on any old you're all
  • 00:29:04
    shortener but
  • 00:29:06
    um let me go ahead and uh paste that
  • 00:29:09
    into the chat here for you
  • 00:29:11
    all okay so what we just pasted into the
  • 00:29:15
    chat uh allows you to to mass enable all
  • 00:29:19
    of those uh analytic rules that um you
  • 00:29:23
    know that you have there so deploying
  • 00:29:25
    those analytic rules uh enabling the
  • 00:29:27
    ubaa
  • 00:29:29
    you know that's uh kind of that step now
  • 00:29:32
    we we showed you some kql and we showed
  • 00:29:35
    you the fact that the analytic rules are
  • 00:29:37
    based on kql so it's pretty important to
  • 00:29:39
    know you know kql and how to work with
  • 00:29:42
    incidents
  • 00:29:43
    right so if we hop over into
  • 00:29:49
    um the SEL portal we'll kind of uh show
  • 00:29:52
    you a couple of Basics
  • 00:29:55
    here so if I go into
  • 00:29:59
    um logs once your connectors are up and
  • 00:30:02
    running you can now interact directly
  • 00:30:06
    with the logs that are um being imported
  • 00:30:11
    so for example if I kind of look at the
  • 00:30:13
    schema here I've got my audit logs my
  • 00:30:16
    signin logs my URL click events so if
  • 00:30:20
    somebody clicks on a link in their email
  • 00:30:24
    we have a record of that link click and
  • 00:30:26
    that could be really really useful when
  • 00:30:29
    we're trying to scope a incident
  • 00:30:31
    response you know how many other people
  • 00:30:33
    clicked on that same link uh we'll show
  • 00:30:36
    you how to identify
  • 00:30:38
    that so we're looking at all the logs
  • 00:30:41
    that the data connectors are bringing
  • 00:30:43
    into
  • 00:30:44
    Sentinel and then uh so these are kind
  • 00:30:47
    of the raw tables that you can actually
  • 00:30:50
    you know query against natively now what
  • 00:30:52
    are some examples of uh of a query well
  • 00:30:56
    if I'm querying like the um
  • 00:30:58
    security uh incidents um so you put in
  • 00:31:01
    the name of the table you put in this
  • 00:31:03
    pipe command kind of like Powershell
  • 00:31:05
    right and then I can use something like
  • 00:31:07
    count right now how would I know uh the
  • 00:31:11
    syntax um you know how would I know how
  • 00:31:13
    to uh how this all works there is a
  • 00:31:17
    simple mode so I don't have to know
  • 00:31:19
    necessarily the query language I can go
  • 00:31:21
    to simple mode and this actually allows
  • 00:31:23
    me to build out a query um using the uh
  • 00:31:27
    the query Builder so I can actually just
  • 00:31:30
    kind of select a table so I'll pick you
  • 00:31:32
    know audit logs I can then um you know
  • 00:31:36
    just jump in here and actually interact
  • 00:31:37
    with uh simple mode in in this way so I
  • 00:31:40
    can actually change okay I want the last
  • 00:31:42
    30 minutes and I want to do uh limits
  • 00:31:46
    and I want to add some filters so I can
  • 00:31:48
    maybe do some
  • 00:31:49
    aggregation um here maybe I want to uh
  • 00:31:52
    sum a particular um or grab a particular
  • 00:31:57
    uh
  • 00:31:58
    display name and do a count by that
  • 00:32:01
    right so if you don't know the kql
  • 00:32:05
    syntax the simple mode is new it allows
  • 00:32:07
    you to kind of add your own filter in
  • 00:32:09
    kind of like an Excel
  • 00:32:11
    spreadsheet if you want to learn a
  • 00:32:13
    little bit more about Sentinel um we've
  • 00:32:17
    uploaded a couple of uh resources so one
  • 00:32:19
    of the resources that we put was this
  • 00:32:22
    PowerPoint that we're actually going
  • 00:32:23
    through and on one of the slides here uh
  • 00:32:28
    are some of the resources to learn custo
  • 00:32:30
    query language so uh there's a great
  • 00:32:33
    resource Rod Trent must learn kql link
  • 00:32:38
    um there's a kind of a gamified site
  • 00:32:40
    that uh is called kc7 Cy cyber so
  • 00:32:43
    patriate is actually a corporate sponsor
  • 00:32:46
    uh we pay for the uh Azure costs uh for
  • 00:32:50
    this and it allows you to kind of go in
  • 00:32:51
    there kind of like a capture the flag
  • 00:32:53
    game to learn kql really fantastic uh
  • 00:32:57
    for security operations folks that need
  • 00:32:59
    to learn custo query language and then
  • 00:33:02
    uh kind of the deao standard of learning
  • 00:33:04
    kql is this book that came out called
  • 00:33:06
    the definitive guide to uh kql which you
  • 00:33:08
    can you can get on
  • 00:33:11
    U on Amazon but uh let me go ahead and
  • 00:33:14
    show you uh an example of uh the first
  • 00:33:19
    one the must learn kql so when you uh
  • 00:33:21
    and I'll put this in the chat here for
  • 00:33:23
    you as
  • 00:33:24
    well for you to navigate to
  • 00:33:28
    okay that is now in the in the
  • 00:33:31
    chat so you know must learn kql so I
  • 00:33:34
    showed you the count operator you know
  • 00:33:36
    we had just used that so um you can
  • 00:33:38
    either read the article or you can watch
  • 00:33:40
    the video um but if I click on the count
  • 00:33:43
    operator I can scroll down and he's got
  • 00:33:46
    he explains the syntax of how the
  • 00:33:48
    account operator is used and uh you know
  • 00:33:51
    how exactly that
  • 00:33:53
    functions um you know really nice
  • 00:33:55
    samples right so I can actually you know
  • 00:33:58
    grab the sample here I can copy that and
  • 00:34:01
    I could just paste that right in uh in
  • 00:34:04
    kql
  • 00:34:05
    mode so I'm going to go and run
  • 00:34:08
    that and uh so it's uh me go ahead and
  • 00:34:15
    clear okay security event so security
  • 00:34:18
    event is a table for on premise active
  • 00:34:20
    directory which I'm not bringing into
  • 00:34:21
    this lab but if I want to get into uh
  • 00:34:25
    you know the sign and logs
  • 00:34:28
    where the result uh
  • 00:34:32
    type Z summarize
  • 00:34:36
    count or just
  • 00:34:43
    count so last 24 hours 16,000 you know
  • 00:34:46
    successful so zero is is
  • 00:34:49
    Success um another type of successful
  • 00:34:52
    signin is actually um the uh keep me
  • 00:34:57
    signed
  • 00:34:59
    in so keep me signed in is a uh is an
  • 00:35:03
    event
  • 00:35:11
    of
  • 00:35:13
    5014 and that's kind of important
  • 00:35:15
    because if you're only querying on zero
  • 00:35:17
    which are successful signin but you're
  • 00:35:19
    not querying on keep me signed in events
  • 00:35:21
    you actually won't get the full um uh
  • 00:35:24
    count so 16776 and I run that again
  • 00:35:29
    16806 so you could see there there would
  • 00:35:31
    have been additional sign-ins I would
  • 00:35:33
    have missed so there are there is some
  • 00:35:35
    kind of inside baseball you need to know
  • 00:35:37
    uh when you're acquiring specific log
  • 00:35:39
    tables now how would you know that you
  • 00:35:43
    need to essentially be very comfortable
  • 00:35:45
    with this uh take 10 operator so take 10
  • 00:35:49
    allows you to quer a table and get the
  • 00:35:52
    first 10 rows and then you can kind of
  • 00:35:53
    inspect the content of that data right
  • 00:35:57
    so I can now get much more familiar with
  • 00:36:00
    um you know every uh element uh that's
  • 00:36:04
    in there and then another kind of tip is
  • 00:36:07
    if you're not familiar with the
  • 00:36:08
    different type of uh
  • 00:36:11
    Fields uh for a particular column you
  • 00:36:15
    can
  • 00:36:15
    summarize
  • 00:36:17
    um the the column using um or using the
  • 00:36:22
    summarize function you can actually
  • 00:36:24
    summarize a column and it will give you
  • 00:36:26
    okay 16 ,000 signin that were successful
  • 00:36:30
    but what are all these other you know
  • 00:36:31
    event
  • 00:36:33
    types well we can actually find out by
  • 00:36:36
    adding the result
  • 00:36:39
    description so now we can actually uh
  • 00:36:42
    get to know our table a little bit
  • 00:36:43
    better
  • 00:36:45
    right so we've got you know a
  • 00:36:48
    conditional access policy required a
  • 00:36:49
    compliant device okay that's that's uh
  • 00:36:52
    code
  • 00:36:53
    530000 so again this allows you to kind
  • 00:36:56
    of explore with it a little bit um once
  • 00:37:00
    you um understand uh the kql and let's
  • 00:37:04
    say you wanted to get a signin result uh
  • 00:37:08
    where the
  • 00:37:11
    location uh was like in in Russia or
  • 00:37:15
    something right so you can actually
  • 00:37:19
    uh do something where we go back so
  • 00:37:22
    where the time generated is greater than
  • 00:37:25
    say
  • 00:37:27
    90 days
  • 00:37:31
    ago and we want to maybe um where the
  • 00:37:35
    location is equal to
  • 00:37:40
    Russia now we'll get a couple hits here
  • 00:37:44
    uh but it's important to find out if
  • 00:37:45
    these are successful hits so we have
  • 00:37:47
    three hits three signin signin attempts
  • 00:37:50
    in the last 90 days from Russia but we
  • 00:37:52
    need to find out you know are those
  • 00:37:55
    successful or not so now we add that
  • 00:37:57
    summarized to the
  • 00:38:03
    end and so here we can see those three
  • 00:38:06
    signin attempts from Russia are invalid
  • 00:38:09
    password attempts so there were attempts
  • 00:38:11
    but they uh failed to successfully sign
  • 00:38:13
    in so now you might you know take
  • 00:38:17
    that and maybe you actually go to your
  • 00:38:20
    analytic
  • 00:38:21
    Rule and you want to create a new
  • 00:38:23
    analytic rule
  • 00:38:27
    Whenever there are you know successful
  • 00:38:31
    signin from Russia so you go next paste
  • 00:38:36
    your syntax in
  • 00:38:38
    here where the
  • 00:38:41
    result uh
  • 00:38:46
    type is zero or
  • 00:38:51
    result
  • 00:38:53
    type is
  • 00:38:55
    5014 keep me signed in
  • 00:38:58
    okay and then you map um the resulting
  • 00:39:03
    entities so that later on when we show
  • 00:39:05
    you um the investigation you want to be
  • 00:39:08
    able to map um The Entity ID uh to a
  • 00:39:13
    user so that it actually shows up um for
  • 00:39:17
    the person investigating
  • 00:39:19
    it these are princip
  • 00:39:23
    okay you would click next and you'd
  • 00:39:25
    schedule this to run and then this would
  • 00:39:27
    send you an alert anytime that that
  • 00:39:29
    happened so that's that's an example of
  • 00:39:31
    you know the benefit um of working with
  • 00:39:35
    the logs and the kql building those
  • 00:39:36
    analytic rules um you know at Patriot
  • 00:39:39
    we've actually built over 200 of our own
  • 00:39:43
    Uh custom
  • 00:39:44
    rules um because based on our testing
  • 00:39:48
    even though the outof the boox ones are
  • 00:39:49
    pretty good when you actually use the
  • 00:39:51
    miter attack to kind of map out where
  • 00:39:54
    your holes are this is effectively kind
  • 00:39:57
    of showing you show me all of my
  • 00:39:59
    analytic rules and how does that relate
  • 00:40:01
    to the coverage of minor attack right
  • 00:40:05
    you'll notice that the outof thebox
  • 00:40:07
    rules there's a gap on maybe um
  • 00:40:10
    detecting interprocess communication or
  • 00:40:12
    shared modules or browser extensions so
  • 00:40:16
    this would kind of inform your team okay
  • 00:40:19
    maybe we need to write an analytic rule
  • 00:40:21
    where a browser extension is getting
  • 00:40:23
    abused or where a bits job is firing you
  • 00:40:27
    know bits jobs can be used to download
  • 00:40:29
    content from the internet as a dropper
  • 00:40:31
    to bring in Mau onto an endpoint so
  • 00:40:34
    that's why we had to build our own Uh
  • 00:40:36
    custom analytic rules to kind of fill
  • 00:40:38
    some of these
  • 00:40:40
    gaps so let's kind of take a step back
  • 00:40:42
    here and see where we are um so we
  • 00:40:46
    talked about you know using kql to look
  • 00:40:48
    for you know sign-ins we talked about
  • 00:40:50
    using the uh summarizing count we looked
  • 00:40:54
    at you know detecting sign-ins from
  • 00:40:56
    Russia um this one's kind of
  • 00:40:58
    interesting um show me where people
  • 00:41:02
    traveled uh to two different countries
  • 00:41:05
    in the same day and in this particular
  • 00:41:08
    case you can also look for specific
  • 00:41:10
    countries as
  • 00:41:12
    well uh you can also look for email
  • 00:41:14
    events uh so this one might be kind of
  • 00:41:16
    interesting uh show me all the email
  • 00:41:18
    events where um this particular uh
  • 00:41:21
    recipient who had more uh than one or at
  • 00:41:25
    least one attachment or at least uh you
  • 00:41:28
    know one uh hyperlink where a URL was
  • 00:41:33
    clicked and tell me the domain names
  • 00:41:36
    that were clicked
  • 00:41:38
    on so that might be a fun one to kind of
  • 00:41:40
    play with here so we'll go ahead and
  • 00:41:43
    grab that
  • 00:41:46
    syntax and you can follow along too if
  • 00:41:49
    you have uh that data flowing in your
  • 00:41:53
    tenant go to our
  • 00:41:56
    logs to kql
  • 00:41:59
    mode create new query
  • 00:42:06
    here
  • 00:42:08
    okay so a let statement it's kind of
  • 00:42:11
    like a join statement we're basically um
  • 00:42:13
    creating this variable called emails so
  • 00:42:16
    show me all the email events and return
  • 00:42:19
    the network message ID which is the
  • 00:42:21
    unique identifier for the messages where
  • 00:42:24
    Joe received uh an email containing at
  • 00:42:26
    Le at least one attachment and at least
  • 00:42:28
    one hyperlink show me um where those
  • 00:42:31
    were clicked on so where the network
  • 00:42:33
    message ID and this click events table
  • 00:42:36
    is actually from this variable and then
  • 00:42:38
    from that then send it over to the email
  • 00:42:41
    URL info table and uh again show me
  • 00:42:46
    information uh give me the domain names
  • 00:42:49
    uh that were clicked on so you can then
  • 00:42:51
    run
  • 00:42:52
    that and so here's some of the URLs that
  • 00:42:55
    this recipient clicked on so maybe
  • 00:42:57
    clicked on you know um a looks like a
  • 00:43:01
    meeting in teams and and some domains
  • 00:43:04
    and this could be kind of helpful if you
  • 00:43:05
    wanted to know well who else other than
  • 00:43:08
    Joe you know maybe clicked on you know
  • 00:43:11
    one of these uh domains so you can then
  • 00:43:15
    you know basically copy this um
  • 00:43:20
    and you know add an additional wear
  • 00:43:23
    Clause here right so where the uh
  • 00:43:29
    domains it's equal to
  • 00:43:33
    this then you remove the
  • 00:43:37
    recipient So in theory this should tell
  • 00:43:40
    me anyone in the organization who uh
  • 00:43:42
    also clicked on that
  • 00:43:45
    link and uh just just me apparently um
  • 00:43:51
    but yeah so that's the you know an
  • 00:43:53
    example of uh you know interacting with
  • 00:43:56
    identities inter ING with email the
  • 00:43:59
    power of uh this xdr you know Sentinel
  • 00:44:02
    kind of sitting on top of this is that
  • 00:44:05
    you can literally query you can write
  • 00:44:07
    one kql query that can look for an email
  • 00:44:10
    that made it onto an endpoint where the
  • 00:44:13
    identity was then compromised so you
  • 00:44:15
    could actually construct a kql to query
  • 00:44:18
    all those tables uh in the same uh query
  • 00:44:21
    and then build an analytic role to you
  • 00:44:23
    know send you an alert when that occurs
  • 00:44:26
    um so when when an incident is created
  • 00:44:29
    uh you're going to find that in Sentinel
  • 00:44:31
    uh so if you're a sock analyst you're
  • 00:44:33
    going to work most of your day is going
  • 00:44:34
    to be over here in
  • 00:44:36
    incidents so here's a couple incidents
  • 00:44:38
    that were created so you know in
  • 00:44:40
    incident handling basic um you might
  • 00:44:43
    come in here and say okay well here's a
  • 00:44:46
    multi-stage incident on an
  • 00:44:49
    endpoint so as a as an analyst um here's
  • 00:44:52
    the entities that I was showing you
  • 00:44:54
    during the analytic rule creation that
  • 00:44:56
    you map so it's kind of important when
  • 00:44:58
    you're writing a kqu query that you map
  • 00:45:01
    that to an entity so that the analysts
  • 00:45:04
    when they're looking at it they can very
  • 00:45:05
    quickly summarize you know what's
  • 00:45:07
    involved okay there's the desktop
  • 00:45:09
    involved they can click on it learn more
  • 00:45:11
    information about that desktop so if I
  • 00:45:14
    go to view full details
  • 00:45:17
    here I can see what's involved so all
  • 00:45:20
    the entities uh in this incident are
  • 00:45:23
    going to be shown here in a list so I
  • 00:45:25
    can quickly kind of see okay okay
  • 00:45:27
    there's this there's a process a file
  • 00:45:30
    hash and a hyperlink but what's kind of
  • 00:45:32
    the full story like what actually
  • 00:45:34
    happened here um now you could you could
  • 00:45:37
    click investigate and it will kind of
  • 00:45:38
    give you a big picture so especially if
  • 00:45:40
    there's you know multiple machines
  • 00:45:42
    involved you can kind of see you know um
  • 00:45:45
    how everything was kind of connected
  • 00:45:46
    that's kind of helpful and and for each
  • 00:45:48
    of these things you know you can
  • 00:45:49
    actually um drill in and correlate and
  • 00:45:53
    and query off that data um you can uh
  • 00:45:57
    kind of do quite a bit of pivoting here
  • 00:45:58
    too in an investigation but what what we
  • 00:46:01
    often do is we like to investigate this
  • 00:46:05
    in the defender xdr
  • 00:46:08
    portal and um I think less than a year
  • 00:46:12
    ago this portal got unified with
  • 00:46:15
    Sentinel so that you no longer really
  • 00:46:18
    start your day in Sentinel anymore you
  • 00:46:21
    basically start your day in this xdr
  • 00:46:23
    portal that way you don't have to click
  • 00:46:26
    on this button investiga and Defender
  • 00:46:28
    because that would mean you'd have to
  • 00:46:29
    swap back and forth between your xdr
  • 00:46:32
    software and the Sim now you can stay in
  • 00:46:35
    xdr and you'll notice that uh Sentinel
  • 00:46:39
    is now natively integrated inside of the
  • 00:46:43
    Microsoft Defender xdr portal so I can
  • 00:46:46
    work all of my incidents now in this
  • 00:46:49
    unified portal I don't have to come back
  • 00:46:51
    here I can actually stay here um back to
  • 00:46:54
    this event so if I click on these URLs
  • 00:46:57
    and and go okay well what is qq.com
  • 00:46:59
    right so I I looked it up um it's
  • 00:47:02
    actually a uh a Chinese kind of instant
  • 00:47:05
    messaging uh software but why is this
  • 00:47:10
    Intel uh you know process involved in
  • 00:47:13
    communicating uh with this so if you
  • 00:47:15
    click on the actual you know attack
  • 00:47:17
    story um so there's a UR all um you know
  • 00:47:22
    uh visited there's uh communication here
  • 00:47:25
    but if I want to really in and this is
  • 00:47:28
    really the power of the xdr and and
  • 00:47:30
    really kind of a different you know
  • 00:47:33
    um uh you know story here but if if I
  • 00:47:36
    wanted to actually uh you know see more
  • 00:47:39
    details about the process and and uh you
  • 00:47:43
    know investigate this you're able to um
  • 00:47:46
    click on this and then you'll be able to
  • 00:47:48
    see that this process launched uh but
  • 00:47:51
    then the network filter um detected this
  • 00:47:57
    communication and then it was blocked
  • 00:48:00
    which is cool right it's great that the
  • 00:48:02
    xdr software didn't like the fact that
  • 00:48:05
    this process attempted to make an
  • 00:48:07
    outbound communication with uh a pretty
  • 00:48:10
    weird you know um you know uh
  • 00:48:14
    Chinese uh you know uh service the a
  • 00:48:19
    instant messaging
  • 00:48:20
    service now from here you could run a
  • 00:48:23
    Playbook and this would be a good segue
  • 00:48:26
    over to Lamar
  • 00:48:27
    if I run this Playbook that allows me to
  • 00:48:30
    maybe kick off a isolation right where I
  • 00:48:33
    can isolate this endp point technically
  • 00:48:35
    I can do it here as well um if I go back
  • 00:48:38
    um into the uh device I can click on the
  • 00:48:43
    uh
  • 00:48:45
    actions and I can uh click on isolate
  • 00:48:49
    device so I could do it right here but
  • 00:48:51
    if I had a Playbook of maybe other steps
  • 00:48:53
    like maybe I wanted to you know create
  • 00:48:56
    ticket in my service now or or My
  • 00:48:59
    ticketing system send a teams message
  • 00:49:02
    maybe there's a bunch of things I I
  • 00:49:03
    always want to do that's why we call it
  • 00:49:05
    a Playbook um for sure I could isolate
  • 00:49:08
    it here or I can run this kind of uh
  • 00:49:10
    sequence of
  • 00:49:11
    events um and so those um the automation
  • 00:49:15
    rules inside of Sentinel you know they
  • 00:49:18
    can be used to suppress noisy alerts but
  • 00:49:20
    they can also be used uh to run
  • 00:49:22
    playbooks so where you would find that
  • 00:49:25
    in Sentinel is if you go back out to
  • 00:49:30
    automation you'll notice that Sentinel
  • 00:49:33
    comes with a bunch of kind of templetes
  • 00:49:34
    here so you don't have to create them
  • 00:49:36
    from scratch right so you can actually
  • 00:49:39
    enrich the incident with virus total
  • 00:49:41
    information so I don't have to then
  • 00:49:43
    leave and browse to a different site to
  • 00:49:45
    look up uh qq.com I can look up the IP
  • 00:49:48
    and abuse
  • 00:49:50
    ipdb um I can send an email I could um
  • 00:49:55
    you know block the user from signing in
  • 00:49:58
    I can revoke their signin
  • 00:50:00
    sessions um or I can create my own kind
  • 00:50:02
    of custom automation rule but Lamar um
  • 00:50:05
    let me hand it over to you maybe a quick
  • 00:50:07
    demo of uh you know a Playbook and kind
  • 00:50:10
    of what that looks
  • 00:50:12
    like perfect sounds good
  • 00:50:15
    Joe me cue that up
  • 00:50:21
    here so with automation there's really
  • 00:50:24
    there's kind of two components to it you
  • 00:50:26
    have what are the automation rules
  • 00:50:29
    automation rules I consider these your
  • 00:50:32
    orchestration so what things do we want
  • 00:50:34
    to happen automatically and under what
  • 00:50:37
    conditions so for example if we were to
  • 00:50:40
    say um you know we want something to run
  • 00:50:44
    when an incident is created uh the
  • 00:50:46
    severity is
  • 00:50:48
    High um you can get as specific as you
  • 00:50:50
    want here with your conditions you could
  • 00:50:53
    also do um you know title
  • 00:50:57
    contains uh
  • 00:51:00
    aitm or in the middle right you could be
  • 00:51:04
    real specific as to when you want this
  • 00:51:06
    to fire off automatically then you have
  • 00:51:09
    the actions that it can do so the most
  • 00:51:11
    powerful one is run Playbook aside from
  • 00:51:14
    that one these other ones are things
  • 00:51:15
    that happen within the Sentinel incident
  • 00:51:17
    itself you can change the status
  • 00:51:19
    severity owner Etc but in this case we'd
  • 00:51:22
    want to say run a Playbook and I'll show
  • 00:51:23
    you a little bit more about playbooks in
  • 00:51:25
    a sec um but the point I want to make
  • 00:51:27
    here is that you you can run multiple
  • 00:51:30
    playbooks in a row as well so that
  • 00:51:32
    really shows the power of that
  • 00:51:33
    orchestration so maybe we want to uh
  • 00:51:37
    block the user and then we also want to
  • 00:51:40
    revoke the the sessions right so we want
  • 00:51:43
    to do both of those in sequence when
  • 00:51:45
    something like this happens you also
  • 00:51:48
    have um when this rule expires if you
  • 00:51:50
    want to put that and the order they do
  • 00:51:52
    fire off in order and any rule that
  • 00:51:54
    meets the criteria of your conditions
  • 00:51:56
    will will be fired off so again
  • 00:52:00
    automation is that orchestration what
  • 00:52:02
    happens and when
  • 00:52:03
    automatically your playbooks are more of
  • 00:52:06
    that containerized uh logic flow of
  • 00:52:09
    things that you want to happen so you
  • 00:52:12
    get more more complex and more uh Rich
  • 00:52:16
    type of uh responses in here so for
  • 00:52:19
    example if you want to look in here I
  • 00:52:21
    have a a couple examples I like to
  • 00:52:23
    Tinker in here quite a bit so there's
  • 00:52:26
    this one here Defender but let's say we
  • 00:52:29
    want to isolate the device and run
  • 00:52:31
    antivirus scan in one
  • 00:52:34
    step so you can set that up so the nice
  • 00:52:38
    thing is that Sentinel uh playbooks are
  • 00:52:40
    built on logic apps from Azure it's a
  • 00:52:43
    wellestablished well-known platform been
  • 00:52:45
    around for many years so the fact that
  • 00:52:47
    Sentinel can leverage that is amazing so
  • 00:52:50
    we have a a very mature automation
  • 00:52:52
    platform here has all sorts of things
  • 00:52:55
    you could do for each loops on each
  • 00:52:57
    incident you could do conditions so you
  • 00:53:00
    could see I built this one out with a
  • 00:53:01
    little bit of error handling so if if
  • 00:53:04
    any of these steps fail then I have a a
  • 00:53:06
    branch that would then add comments to
  • 00:53:09
    the incident letting me know what was
  • 00:53:11
    succeeded what failed and sending an
  • 00:53:13
    email down at the
  • 00:53:15
    bottom and to your point Joe you can
  • 00:53:17
    also integrate many other third parties
  • 00:53:19
    in here so if I wanted to create
  • 00:53:22
    something in itsm you know we have jira
  • 00:53:25
    we have uh server it's
  • 00:53:27
    now um if we wanted to uh send any type
  • 00:53:32
    of email or teams or if we're using
  • 00:53:34
    slack instead of
  • 00:53:36
    teams um there's just tons and tons of
  • 00:53:38
    Integrations out there since this has
  • 00:53:40
    been around for so long so this is one
  • 00:53:44
    example this is a kind of a a device
  • 00:53:47
    related
  • 00:53:48
    response there's also things that you
  • 00:53:51
    could do like we we mentioned earlier
  • 00:53:53
    around disabling accounts resetting
  • 00:53:55
    passwords
  • 00:53:57
    um sending emails sending teams messages
  • 00:54:01
    so really disguise the limit on what you
  • 00:54:03
    can do here with u
  • 00:54:05
    playbooks no it's it's it's really a
  • 00:54:08
    great kind of walk through um I think
  • 00:54:11
    what's what's great is that uh senel is
  • 00:54:13
    pretty um affordable compared to third
  • 00:54:16
    party Solutions where you have to buy a
  • 00:54:17
    separate security
  • 00:54:19
    orchestration you know service and try
  • 00:54:21
    to integrate that plug that in this is
  • 00:54:23
    all just
  • 00:54:24
    natively you know inside of uh Sentinel
  • 00:54:27
    so it's it's super clean right um so let
  • 00:54:31
    me let me go ahead and kind of wrap it
  • 00:54:33
    up a little bit here today and
  • 00:54:36
    definitely want to you know thank
  • 00:54:38
    everyone for attending if you again if
  • 00:54:40
    you have any questions please shoot us
  • 00:54:41
    an email and hope you all have a
  • 00:54:43
    wonderful day
Tags
  • Microsoft Sentinel
  • SIEM
  • XDR
  • Automation
  • Log Analytics
  • KQL
  • Data Connectors
  • Incident Management
  • Cybersecurity
  • Threat Detection