Technical preview
This functionality may be changed or removed completely in a future release. Elastic will take a best effort approach to fix any issues, but technical preview features are not subject to the support service level agreement of official generally available features.
What is an Elastic integration?

This integration is powered by Elastic Agent. Elastic Agent is a single, unified agent that you can deploy to hosts or containers to collect data and send it to the Elastic Stack. Behind the scenes, Elastic Agent runs the Beats shippers or Elastic Endpoint required for your configuration. Please refer to our documentation for a detailed comparison between Beats and Elastic Agent.

Prefer to use Beats for this use case? See Filebeat modules for logs or Metricbeat modules for metrics.

Overview

This integration is for Snort.

Compatibility

This module has been developed against Snort v2.9, but is expected to work with other versions of Snort. This package is designed to read from the PFsense CSV output and the Alert Fast output either via reading a local logfile or receiving messages via syslog

Log

An example event for log looks as following:

{
    "@timestamp": "2022-09-05T16:02:55.000-05:00",
    "agent": {
        "ephemeral_id": "d1ca036e-57c0-4c4a-9b92-ddc5f4cdb3a2",
        "id": "584f3aea-648c-4e58-aba4-32b8f88d4396",
        "name": "docker-fleet-agent",
        "type": "filebeat",
        "version": "8.0.0-beta1"
    },
    "data_stream": {
        "dataset": "snort.log",
        "namespace": "ep",
        "type": "logs"
    },
    "destination": {
        "address": "175.16.199.1",
        "geo": {
            "city_name": "Changchun",
            "continent_name": "Asia",
            "country_iso_code": "CN",
            "country_name": "China",
            "location": {
                "lat": 43.88,
                "lon": 125.3228
            },
            "region_iso_code": "CN-22",
            "region_name": "Jilin Sheng"
        },
        "ip": "175.16.199.1"
    },
    "ecs": {
        "version": "8.2.0"
    },
    "elastic_agent": {
        "id": "584f3aea-648c-4e58-aba4-32b8f88d4396",
        "snapshot": false,
        "version": "8.0.0-beta1"
    },
    "event": {
        "agent_id_status": "verified",
        "category": [
            "network"
        ],
        "created": "2022-09-05T16:02:55.000-05:00",
        "dataset": "snort.log",
        "ingested": "2022-02-03T09:26:00Z",
        "kind": "alert",
        "original": "Sep  5 16:02:55 dev snort: [1:1000015:0] Pinging... [Classification: Misc activity] [Priority: 3] {ICMP} 10.50.10.88 -\u003e 175.16.199.1\n",
        "severity": 3,
        "timezone": "-05:00"
    },
    "input": {
        "type": "udp"
    },
    "log": {
        "source": {
            "address": "172.19.0.7:38583"
        }
    },
    "network": {
        "community_id": "1:AwywM3uuS+luH6U/hUKtj2x2LWU=",
        "direction": "outbound",
        "transport": "icmp",
        "type": "ipv4"
    },
    "observer": {
        "name": "dev",
        "product": "ids",
        "type": "ids",
        "vendor": "snort"
    },
    "process": {
        "name": "snort"
    },
    "related": {
        "ip": [
            "10.50.10.88",
            "175.16.199.1"
        ]
    },
    "rule": {
        "category": "Misc activity",
        "description": "Pinging...",
        "id": "1000015",
        "version": "0"
    },
    "snort": {
        "gid": 1
    },
    "source": {
        "address": "10.50.10.88",
        "ip": "10.50.10.88"
    },
    "tags": [
        "preserve_original_event",
        "forwarded",
        "snort.log"
    ]
}

Exported fields

FieldDescriptionType
@timestamp
Date/time when the event originated. This is the date/time extracted from the event, typically representing when the event was generated by the source. If the event source has no original timestamp, this value is typically populated by the first time the event was received by the pipeline. Required field for all events.
date
cloud.account.id
The cloud account or organization id used to identify different entities in a multi-tenant environment. Examples: AWS account id, Google Cloud ORG Id, or other unique identifier.
keyword
cloud.availability_zone
Availability zone in which this host is running.
keyword
cloud.image.id
Image ID for the cloud instance.
keyword
cloud.instance.id
Instance ID of the host machine.
keyword
cloud.instance.name
Instance name of the host machine.
keyword
cloud.machine.type
Machine type of the host machine.
keyword
cloud.project.id
Name of the project in Google Cloud.
keyword
cloud.provider
Name of the cloud provider. Example values are aws, azure, gcp, or digitalocean.
keyword
cloud.region
Region in which this host is running.
keyword
container.id
Unique container id.
keyword
container.image.name
Name of the image the container was built on.
keyword
container.labels
Image labels.
object
container.name
Container name.
keyword
data_stream.dataset
Data stream dataset.
constant_keyword
data_stream.namespace
Data stream namespace.
constant_keyword
data_stream.type
Data stream type.
constant_keyword
destination.address
Some event destination addresses are defined ambiguously. The event will sometimes list an IP, a domain or a unix socket. You should always store the raw address in the .address field. Then it should be duplicated to .ip or .domain, depending on which one it is.
keyword
destination.as.number
Unique number allocated to the autonomous system. The autonomous system number (ASN) uniquely identifies each network on the Internet.
long
destination.as.organization.name
Organization name.
keyword
destination.as.organization.name.text
Multi-field of destination.as.organization.name.
match_only_text
destination.bytes
Bytes sent from the destination to the source.
long
destination.domain
The domain name of the destination system. This value may be a host name, a fully qualified domain name, or another host naming format. The value may derive from the original event or be added from enrichment.
keyword
destination.geo.city_name
City name.
keyword
destination.geo.continent_name
Name of the continent.
keyword
destination.geo.country_iso_code
Country ISO code.
keyword
destination.geo.country_name
Country name.
keyword
destination.geo.location
Longitude and latitude.
geo_point
destination.geo.region_iso_code
Region ISO code.
keyword
destination.geo.region_name
Region name.
keyword
destination.ip
IP address of the destination (IPv4 or IPv6).
ip
destination.mac
MAC address of the destination. The notation format from RFC 7042 is suggested: Each octet (that is, 8-bit byte) is represented by two [uppercase] hexadecimal digits giving the value of the octet as an unsigned integer. Successive octets are separated by a hyphen.
keyword
destination.packets
Packets sent from the destination to the source.
long
destination.port
Port of the destination.
long
ecs.version
ECS version this event conforms to. ecs.version is a required field and must exist in all events. When querying across multiple indices -- which may conform to slightly different ECS versions -- this field lets integrations adjust to the schema version of the events.
keyword
event.dataset
Event dataset
constant_keyword
event.module
Event module
constant_keyword
event.outcome
This is one of four ECS Categorization Fields, and indicates the lowest level in the ECS category hierarchy. event.outcome simply denotes whether the event represents a success or a failure from the perspective of the entity that produced the event. Note that when a single transaction is described in multiple events, each event may populate different values of event.outcome, according to their perspective. Also note that in the case of a compound event (a single event that contains multiple logical events), this field should be populated with the value that best captures the overall success or failure from the perspective of the event producer. Further note that not all events will have an associated outcome. For example, this field is generally not populated for metric events, events with event.type:info, or any events for which an outcome does not make logical sense.
keyword
event.severity
The numeric severity of the event according to your event source. What the different severity values mean can be different between sources and use cases. It's up to the implementer to make sure severities are consistent across events from the same source. The Syslog severity belongs in log.syslog.severity.code. event.severity is meant to represent the severity according to the event source (e.g. firewall, IDS). If the event source does not publish its own severity, you may optionally copy the log.syslog.severity.code to event.severity.
long
host.architecture
Operating system architecture.
keyword
host.containerized
If the host is a container.
boolean
host.domain
Name of the domain of which the host is a member. For example, on Windows this could be the host's Active Directory domain or NetBIOS domain name. For Linux this could be the domain of the host's LDAP provider.
keyword
host.hostname
Hostname of the host. It normally contains what the hostname command returns on the host machine.
keyword
host.id
Unique host id. As hostname is not always unique, use values that are meaningful in your environment. Example: The current usage of beat.name.
keyword
host.ip
Host ip addresses.
ip
host.mac
Host mac addresses.
keyword
host.name
Name of the host. It can contain what hostname returns on Unix systems, the fully qualified domain name, or a name specified by the user. The sender decides which value to use.
keyword
host.os.build
OS build information.
keyword
host.os.codename
OS codename, if any.
keyword
host.os.family
OS family (such as redhat, debian, freebsd, windows).
keyword
host.os.kernel
Operating system kernel version as a raw string.
keyword
host.os.name
Operating system name, without the version.
keyword
host.os.name.text
Multi-field of host.os.name.
text
host.os.platform
Operating system platform (such centos, ubuntu, windows).
keyword
host.os.version
Operating system version as a raw string.
keyword
host.type
Type of host. For Cloud providers this can be the machine type like t2.medium. If vm, this could be the container, for example, or other information meaningful in your environment.
keyword
input.type
Input type
keyword
log.file.path
Full path to the log file this event came from, including the file name. It should include the drive letter, when appropriate. If the event wasn't read from a log file, do not populate this field.
keyword
log.flags
Flags for the log file.
keyword
log.offset
Log offset
long
log.source.address
Source address from which the log event was read / sent from.
keyword
message
For log events the message field contains the log message, optimized for viewing in a log viewer. For structured logs without an original message field, other fields can be concatenated to form a human-readable summary of the event. If multiple messages exist, they can be combined into one message.
match_only_text
network.community_id
A hash of source and destination IPs and ports, as well as the protocol used in a communication. This is a tool-agnostic standard to identify flows. Learn more at https://github.com/corelight/community-id-spec.
keyword
network.direction
Direction of the network traffic. Recommended values are: * ingress * egress * inbound * outbound * internal * external * unknown When mapping events from a host-based monitoring context, populate this field from the host's point of view, using the values "ingress" or "egress". When mapping events from a network or perimeter-based monitoring context, populate this field from the point of view of the network perimeter, using the values "inbound", "outbound", "internal" or "external". Note that "internal" is not crossing perimeter boundaries, and is meant to describe communication between two hosts within the perimeter. Note also that "external" is meant to describe traffic between two hosts that are external to the perimeter. This could for example be useful for ISPs or VPN service providers.
keyword
network.protocol
In the OSI Model this would be the Application Layer protocol. For example, http, dns, or ssh. The field value must be normalized to lowercase for querying.
keyword
network.transport
Same as network.iana_number, but instead using the Keyword name of the transport layer (udp, tcp, ipv6-icmp, etc.) The field value must be normalized to lowercase for querying.
keyword
network.type
In the OSI Model this would be the Network Layer. ipv4, ipv6, ipsec, pim, etc The field value must be normalized to lowercase for querying.
keyword
observer.ip
IP addresses of the observer.
ip
observer.name
Custom name of the observer. This is a name that can be given to an observer. This can be helpful for example if multiple firewalls of the same model are used in an organization. If no custom name is needed, the field can be left empty.
keyword
observer.product
The product name of the observer.
keyword
observer.type
The type of the observer the data is coming from. There is no predefined list of observer types. Some examples are forwarder, firewall, ids, ips, proxy, poller, sensor, APM server.
keyword
observer.vendor
Vendor name of the observer.
keyword
process.name
Process name. Sometimes called program name or similar.
keyword
process.name.text
Multi-field of process.name.
match_only_text
process.pid
Process id.
long
related.ip
All of the IPs seen on your event.
ip
rule.category
A categorization value keyword used by the entity using the rule for detection of this event.
keyword
rule.description
The description of the rule generating the event.
keyword
rule.id
A rule ID that is unique within the scope of an agent, observer, or other entity using the rule for detection of this event.
keyword
rule.name
The name of the rule or signature generating the event.
keyword
rule.version
The version / revision of the rule being used for analysis.
keyword
snort.dgm.length
Length of
long
snort.eth.length
Length of the Ethernet header and payload.
long
snort.gid
The gid keyword (generator id) is used to identify what part of Snort generates the event when a particular rule fires.dd
long
snort.icmp.code
ICMP code.
long
snort.icmp.id
ID of the echo request/reply
long
snort.icmp.seq
ICMP sequence number.
long
snort.icmp.type
ICMP type.
long
snort.ip.flags
IP flags.
keyword
snort.ip.id
ID of the packet
long
snort.ip.length
Length of the IP header and payload.
long
snort.ip.tos
IP Type of Service identification.
long
snort.ip.ttl
Time To Live (TTL) of the packet
long
snort.tcp.ack
TCP Acknowledgment number.
long
snort.tcp.flags
TCP flags.
keyword
snort.tcp.length
Length of the TCP header and payload.
long
snort.tcp.seq
TCP sequence number.
long
snort.tcp.window
Advertised TCP window size.
long
snort.udp.length
Length of the UDP header and payload.
long
source.address
Some event source addresses are defined ambiguously. The event will sometimes list an IP, a domain or a unix socket. You should always store the raw address in the .address field. Then it should be duplicated to .ip or .domain, depending on which one it is.
keyword
source.as.number
Unique number allocated to the autonomous system. The autonomous system number (ASN) uniquely identifies each network on the Internet.
long
source.as.organization.name
Organization name.
keyword
source.as.organization.name.text
Multi-field of source.as.organization.name.
match_only_text
source.bytes
Bytes sent from the source to the destination.
long
source.geo.city_name
City name.
keyword
source.geo.continent_name
Name of the continent.
keyword
source.geo.country_iso_code
Country ISO code.
keyword
source.geo.country_name
Country name.
keyword
source.geo.location
Longitude and latitude.
geo_point
source.geo.region_iso_code
Region ISO code.
keyword
source.geo.region_name
Region name.
keyword
source.ip
IP address of the source (IPv4 or IPv6).
ip
source.mac
MAC address of the source. The notation format from RFC 7042 is suggested: Each octet (that is, 8-bit byte) is represented by two [uppercase] hexadecimal digits giving the value of the octet as an unsigned integer. Successive octets are separated by a hyphen.
keyword
source.packets
Packets sent from the source to the destination.
long
source.port
Port of the source.
long
tags
List of keywords used to tag each event.
keyword

Changelog

VersionDetails
0.3.0
Enhancement View pull request
Update to ECS 8.2
0.2.2
Enhancement View pull request
Add documentation for multi-fields
0.2.1
Bug fix View pull request
Fix test data
0.2.0
Enhancement View pull request
Update to ECS 8.0
0.1.2
Bug fix View pull request
Regenerate test files using the new GeoIP database
0.1.1
Bug fix View pull request
Change test public IPs to the supported subset
0.1.0
Enhancement View pull request
Add 8.0.0 version constraint
0.0.3
Enhancement View pull request
Update Title and Description.
0.0.2
Bug fix View pull request
Fix logic that checks for the 'forwarded' tag
0.0.1
Enhancement View pull request
initial release
Last updated: May 12th, 2022