Elastic Security combines SIEM threat detection features with endpoint prevention and response capabilities in one solution. These analytical and protection capabilities, leveraged by the speed and extensibility of Elasticsearch, enable analysts to defend their organization from threats before damage and loss occur.
Elastic Security provides the following security benefits and capabilities:
- A detection engine to identify attacks and system misconfigurations
- A workspace for event triage and investigations
- Interactive visualizations to investigate process relationships
- Inbuilt case management with automated actions
- Detection of signatureless attacks with prebuilt machine learning anomaly jobs and detection rules
The following diagram provides a comprehensive illustration of the Elastic Security workflow.
Here's an overview of the flow and its components:
Data is shipped from your hosts to Elastic Security in the following ways:
Windows: Process, network, file, DNS, registry, DLL and driver loads, malware security detections, API
Linux/macOS: Process, network, file
Integrations: Integrations are a streamlined way to ship your data. Integrations are available for popular services and platforms, like Nginx, AWS, and MongoDB, as well as many generic input types like log files.
Beat modules: Beats are lightweight data shippers. Beat modules provide a way of collecting and parsing specific data sets from common sources, such as cloud and OS events, logs, and metrics. Common security-related modules are listed here.
The Elastic Security app is used to manage the Detection engine, Cases, and Timeline, as well as administer hosts running Elastic Defend:
Detection engine: Automatically searches for suspicious host and network activity via the following:
Detection rules: Periodically search the data (Elasticsearch indices) sent from your hosts for suspicious events. When a suspicious event is discovered, an alert is generated. External systems, such as Slack and email, can be used to send notifications when alerts are generated. You can create your own rules and make use of our prebuilt ones.
Exceptions: Reduce noise and the number of false positives. Exceptions are associated with rules and prevent alerts when an exception's conditions are met. Value lists contain source event values that can be used as part of an exception's conditions. When Elastic Defend is installed on your hosts, you can add malware exceptions directly to the endpoint from the Security app.
Machine learning jobs: Automatic anomaly detection of host and network events. Anomaly scores are provided per host and can be used with detection rules.
Timeline: Workspace for investigating alerts and events. Timelines use queries and filters to drill down into events related to a specific incident. Timeline templates are attached to rules and use predefined queries when alerts are investigated. Timelines can be saved and shared with others, as well as attached to Cases.
Cases: An internal system for opening, tracking, and sharing security issues directly in the Elastic Security app. Cases can be integrated with external ticketing systems.
Administration: View and manage hosts running Elastic Defend.
Ingest data to Elastic Security and Install and configure the Elastic Defend integration describe how to ship security-related data.
The Elastic Defend integration for Elastic Agent provides capabilities such as collecting events, detecting and preventing malicious activity, exceptions, and artifact delivery. Fleet is used to install and manage Elastic Agents and integrations on your hosts.
Self-protection means that Elastic Endpoint has guards against users and attackers that may try to interfere with its functionality. This protection feature is consistently enhanced to prevent attackers who may attempt to use newer, more sophisticated tactics to interfere with the Elastic Endpoint. Self-protection is enabled by default when Elastic Endpoint installs on supported platforms, listed below.
Self-protection is enabled on the following 64-bit Windows versions:
- Windows 8.1
- Windows 10
- Windows 11
- Windows Server 2012 R2
- Windows Server 2016
- Windows Server 2019
- Windows Server 2022
Self-protection is also enabled on the following macOS versions:
- macOS 10.15 (Catalina)
- macOS 11 (Big Sur)
- macOS 12 (Monterey)
Other Windows and macOS variants (and all Linux distributions) do not have self-protection.
Self-protection defines the following permissions:
- Users — even Administrator/root — cannot delete Elastic Endpoint files (located at
c:\Program Files\Elastic\Endpointon Windows, and
- Users cannot terminate the Elastic Endpoint program or service.
- Administrator/root users can read the Endpoint's files. On Windows, the easiest way to read Endpoint files is to start an Administrator
cmd.exeprompt. On macOS, an Administrator can use the
- Administrator/root users can stop the Elastic Agent's service. On Windows, run the
sc stop "Elastic Agent"command. On macOS, run the
sudo launchctl stop elastic-agentcommand.
You can use Elastic Security with other Elastic products and features to help you identify and investigate suspicious activity:
By default, Elastic Security monitors APM
apm-*-transaction* indices. To add additional APM indices, update the
index patterns in the
securitySolution:defaultIndex setting in Advanced Settings.
The Elastic Common Schema (ECS) defines a common set of fields to be used for storing event data in Elasticsearch. ECS helps users normalize their event data to better analyze, visualize, and correlate the data represented in their events. Elastic Security supports events and indicator index data from any ECS-compliant data source.
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