Azure Network Watcher NSG
Collect logs from Azure Network Watcher NSG with Elastic Agent.
Version | 1.0.0 (View all) |
Compatible Kibana version(s) | 8.13.0 or higher |
Supported Serverless project types | Security Observability |
Subscription level | Basic |
Level of support | Elastic |
Network security group (NSG) flow logging is a feature of Azure Network Watcher that allows you to log information about IP traffic flowing through a network security group. Flow logs are the source of truth for all network activity in your cloud environment. Whether you're in a startup that's trying to optimize resources or a large enterprise that's trying to detect intrusion, flow logs can help. You can use them for optimizing network flows, monitoring throughput, verifying compliance, detecting intrusions, and more.
Data streams
This integration supports ingestion of logs from Azure Network Watcher NSG, via Azure Blob Storage input.
- Log is used to retrieve NSG Flow data. See more details in the documentation here.
Requirements
Elastic Agent must be installed. For more details and installation instructions, please refer to the Elastic Agent Installation Guide.
Installing and managing an Elastic Agent:
There are several options for installing and managing Elastic Agent:
Install a Fleet-managed Elastic Agent (recommended):
With this approach, you install Elastic Agent and use Fleet in Kibana to define, configure, and manage your agents in a central location. We recommend using Fleet management because it makes the management and upgrade of your agents considerably easier.
Install Elastic Agent in standalone mode (advanced users):
With this approach, you install Elastic Agent and manually configure the agent locally on the system where it’s installed. You are responsible for managing and upgrading the agents. This approach is reserved for advanced users only.
Install Elastic Agent in a containerized environment:
You can run Elastic Agent inside a container, either with Fleet Server or standalone. Docker images for all versions of Elastic Agent are available from the Elastic Docker registry, and we provide deployment manifests for running on Kubernetes.
Please note, there are minimum requirements for running Elastic Agent. For more information, refer to the Elastic Agent Minimum Requirements.
Setup
To collect data from Azure Network Watcher NSG follow the below steps:
- In the Azure portal, go to your storage account.
- Under Security + networking, Click on Access keys. Your account access keys appear, as well as the complete connection string for each key.
- Click on Show keys to show your access keys and connection strings and to enable buttons to copy the values.
- Under key1, find the Key value. Click on the Copy button to copy the account key. Same way you can copy the storage account name shown above keys.
- Go to Containers under Data storage in your storage account to copy the container name.
Note: Enable virtual network flow logs using the steps provided in reference.
Enabling the integration in Elastic:
- In Kibana navigate to Management > Integrations.
- In "Search for integrations" top bar, search for
Azure Network Watcher NSG. - Select the "Azure Network Watcher NSG" integration from the search results.
- Select "Add Azure Network Watcher NSG" to add the integration.
- While adding the integration, to collect logs via Azure Blob Storage, keep Collect NSG logs via Azure Blob Storage toggle on and then configure following parameters:
- account name
- containers
- service account key/service account uri
- Save the integration.
Logs Reference
Log
This is the Log dataset.
Example
An example event for log looks as following:
{
"@timestamp": "2018-11-13T12:00:35.389Z",
"agent": {
"ephemeral_id": "b9d6de84-93bd-40d6-9dc8-c06a84e0718e",
"id": "7a02b789-2d3c-4e39-a804-6995ecfd6bc0",
"name": "docker-fleet-agent",
"type": "filebeat",
"version": "8.12.0"
},
"azure": {
"resource": {
"group": "FABRIKAMRG",
"id": "/SUBSCRIPTIONS/00000000-0000-0000-0000-000000000000/RESOURCEGROUPS/FABRIKAMRG/PROVIDERS/MICROSOFT.NETWORK/NETWORKSECURITYGROUPS/FABRIAKMVM1-NSG",
"name": "FABRIAKMVM1-NSG",
"provider": "MICROSOFT.NETWORK/NETWORKSECURITYGROUPS"
},
"storage": {
"blob": {
"content_type": "application/json",
"name": "testblob"
},
"container": {
"name": "azure-container1"
}
},
"subscription_id": "00000000-0000-0000-0000-000000000000"
},
"azure_network_watcher_nsg": {
"log": {
"category": "NetworkSecurityGroupFlowEvent",
"operation_name": "NetworkSecurityGroupFlowEvents",
"properties": {
"flows": [
{
"flows": [
{
"mac": "00-0D-3A-F8-78-56",
"tuples": [
{
"destination": {
"ip": "10.5.16.4",
"port": 443
},
"flow_state": "Begin",
"protocol": "UDP",
"source": {
"ip": "94.102.49.190",
"port": 28746
},
"timestamp": "2018-11-13T12:00:02.000Z",
"traffic": {
"decision": "Denied",
"flow": "Inbound"
}
},
{
"destination": {
"ip": "10.5.16.4",
"port": 59336
},
"flow_state": "Begin",
"protocol": "TCP",
"source": {
"ip": "176.119.4.10",
"port": 56509
},
"timestamp": "2018-11-13T12:00:24.000Z",
"traffic": {
"decision": "Denied",
"flow": "Inbound"
}
},
{
"destination": {
"ip": "10.5.16.4",
"port": 8088
},
"flow_state": "Begin",
"protocol": "TCP",
"source": {
"ip": "167.99.86.8",
"port": 48495
},
"timestamp": "2018-11-13T12:00:32.000Z",
"traffic": {
"decision": "Denied",
"flow": "Inbound"
}
}
]
}
],
"rule": "DefaultRule_DenyAllInBound"
},
{
"flows": [
{
"mac": "00-0D-3A-F8-78-56",
"tuples": [
{
"destination": {
"ip": "13.67.143.118",
"port": 443
},
"flow_state": "Begin",
"protocol": "TCP",
"source": {
"ip": "10.5.16.4",
"port": 59831
},
"timestamp": "2018-11-13T11:59:37.000Z",
"traffic": {
"decision": "Allowed",
"flow": "Outbound"
}
},
{
"bytes": {
"received": 66,
"sent": 66
},
"destination": {
"ip": "13.67.143.117",
"port": 443
},
"flow_state": "End",
"packets": {
"received": 1,
"sent": 1
},
"protocol": "TCP",
"source": {
"ip": "10.5.16.4",
"port": 59932
},
"timestamp": "2018-11-13T11:59:39.000Z",
"traffic": {
"decision": "Allowed",
"flow": "Outbound"
}
},
{
"bytes": {
"received": 14008,
"sent": 16978
},
"destination": {
"ip": "13.67.143.115",
"port": 443
},
"flow_state": "Continuing",
"packets": {
"received": 24,
"sent": 30
},
"protocol": "TCP",
"source": {
"ip": "10.5.16.4",
"port": 44931
},
"timestamp": "2018-11-13T11:59:39.000Z",
"traffic": {
"decision": "Allowed",
"flow": "Outbound"
}
},
{
"bytes": {
"received": 7054,
"sent": 8489
},
"destination": {
"ip": "40.71.12.225",
"port": 443
},
"flow_state": "End",
"packets": {
"received": 12,
"sent": 15
},
"protocol": "TCP",
"source": {
"ip": "10.5.16.4",
"port": 59929
},
"timestamp": "2018-11-13T12:00:06.000Z",
"traffic": {
"decision": "Allowed",
"flow": "Outbound"
}
}
]
}
],
"rule": "DefaultRule_AllowInternetOutBound"
}
],
"version": "2"
},
"resource_id": "/SUBSCRIPTIONS/00000000-0000-0000-0000-000000000000/RESOURCEGROUPS/FABRIKAMRG/PROVIDERS/MICROSOFT.NETWORK/NETWORKSECURITYGROUPS/FABRIAKMVM1-NSG",
"system_id": "a0fca5ce-022c-47b1-9735-89943b42f2fa",
"time": "2018-11-13T12:00:35.389Z"
}
},
"cloud": {
"provider": "azure"
},
"data_stream": {
"dataset": "azure_network_watcher_nsg.log",
"namespace": "ep",
"type": "logs"
},
"destination": {
"bytes": [
66,
7054,
14008
],
"ip": [
"13.67.143.118",
"13.67.143.117",
"10.5.16.4",
"40.71.12.225",
"13.67.143.115"
],
"packets": [
1,
12,
24
],
"port": [
8088,
443,
59336
]
},
"ecs": {
"version": "8.11.0"
},
"elastic_agent": {
"id": "7a02b789-2d3c-4e39-a804-6995ecfd6bc0",
"snapshot": false,
"version": "8.12.0"
},
"event": {
"agent_id_status": "verified",
"category": [
"network"
],
"dataset": "azure_network_watcher_nsg.log",
"ingested": "2024-05-03T08:30:09Z",
"kind": "event",
"type": [
"info"
]
},
"input": {
"type": "azure-blob-storage"
},
"log": {
"file": {
"path": "http://elastic-package-service-azure-network-watcher-nsg-log-1:10000/devstoreaccount1/azure-container1/testblob"
},
"offset": 1
},
"network": {
"direction": [
"outbound",
"inbound"
],
"transport": [
"udp",
"tcp"
]
},
"related": {
"ip": [
"13.67.143.118",
"13.67.143.117",
"10.5.16.4",
"40.71.12.225",
"13.67.143.115",
"176.119.4.10",
"94.102.49.190",
"167.99.86.8"
]
},
"rule": {
"name": [
"DefaultRule_DenyAllInBound",
"DefaultRule_AllowInternetOutBound"
]
},
"source": {
"bytes": [
66,
8489,
16978
],
"ip": [
"176.119.4.10",
"10.5.16.4",
"94.102.49.190",
"167.99.86.8"
],
"mac": [
"00-0D-3A-F8-78-56"
],
"packets": [
1,
15,
30
],
"port": [
59932,
44931,
59831,
28746,
56509,
59929,
48495
]
},
"tags": [
"forwarded",
"azure_network_watcher_nsg-log"
]
}Exported fields
| Field | Description | Type |
|---|---|---|
@timestamp | Event timestamp. | date |
azure.resource.group | Resource group. | keyword |
azure.resource.id | Resource ID. | keyword |
azure.resource.name | Name. | keyword |
azure.resource.provider | Resource type/namespace. | keyword |
azure.storage.blob.content_type | The content type of the Azure Blob Storage blob object. | keyword |
azure.storage.blob.name | The name of the Azure Blob Storage blob object. | keyword |
azure.storage.container.name | The name of the Azure Blob Storage container. | keyword |
azure.subscription_id | Azure subscription ID. | keyword |
azure_network_watcher_nsg.log.category | Category of the event. | keyword |
azure_network_watcher_nsg.log.operation_name | Always NetworkSecurityGroupFlowEvents. | keyword |
azure_network_watcher_nsg.log.properties.flows.flows.mac | MAC address of the network interface on which the flows are listed. | keyword |
azure_network_watcher_nsg.log.properties.flows.flows.tuples.bytes.received | Total number of TCP packet bytes sent from destination to source. | long |
azure_network_watcher_nsg.log.properties.flows.flows.tuples.bytes.sent | Total number of TCP packet bytes sent from source to destination. | long |
azure_network_watcher_nsg.log.properties.flows.flows.tuples.destination.ip | Destination IP address. | ip |
azure_network_watcher_nsg.log.properties.flows.flows.tuples.destination.port | Destination port. | long |
azure_network_watcher_nsg.log.properties.flows.flows.tuples.flow_state | State of the flow. | keyword |
azure_network_watcher_nsg.log.properties.flows.flows.tuples.packets.received | Total number of TCP packets sent from destination to source. | long |
azure_network_watcher_nsg.log.properties.flows.flows.tuples.packets.sent | Total number of TCP packets sent from source to destination. | long |
azure_network_watcher_nsg.log.properties.flows.flows.tuples.protocol | Protocol of the flow. | keyword |
azure_network_watcher_nsg.log.properties.flows.flows.tuples.source.ip | Source IP address. | ip |
azure_network_watcher_nsg.log.properties.flows.flows.tuples.source.port | Source port. | long |
azure_network_watcher_nsg.log.properties.flows.flows.tuples.timestamp | Time stamp of when the flow occurred in UNIX epoch format. | date |
azure_network_watcher_nsg.log.properties.flows.flows.tuples.traffic.decision | Whether traffic was allowed or denied. | keyword |
azure_network_watcher_nsg.log.properties.flows.flows.tuples.traffic.flow | Direction of the traffic flow. | keyword |
azure_network_watcher_nsg.log.properties.flows.rule | Rule for which the flows are listed. | keyword |
azure_network_watcher_nsg.log.properties.version | Version number of the flow log's event schema. | keyword |
azure_network_watcher_nsg.log.resource_id | Resource ID of the network security group. | keyword |
azure_network_watcher_nsg.log.system_id | System ID of the network security group. | keyword |
azure_network_watcher_nsg.log.time | Time in UTC when the event was logged. | date |
data_stream.dataset | Data stream dataset. | constant_keyword |
data_stream.namespace | Data stream namespace. | constant_keyword |
data_stream.type | Data stream type. | constant_keyword |
event.dataset | Event dataset. | constant_keyword |
event.module | Event module. | constant_keyword |
input.type | Type of Filebeat input. | keyword |
log.offset | Log offset. | long |
Changelog
| Version | Details | Kibana version(s) |
|---|---|---|
1.0.0 | Enhancement View pull request | 8.13.0 or higher |
0.3.0 | Enhancement View pull request | — |
0.2.1 | Bug fix View pull request | — |
0.2.0 | Enhancement View pull request | — |
0.1.0 | Enhancement View pull request | — |