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Last updated: Apr 10th, 2023

Auditd Logs

Collect logs from Linux audit daemon with Elastic Agent.

What is an Elastic integration?

This integration is powered by Elastic Agent. Elastic Agent is a single, unified way to add monitoring for logs, metrics, and other types of data to a host. It can also protect hosts from security threats, query data from operating systems, forward data from remote services or hardware, and more. 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.

The Auditd Logs integration collects and parses logs from the audit daemon (auditd).

Compatibility

The integration was tested with logs from auditd on OSes like CentOS 6 and CentOS 7.

This integration is not available for Windows.

Auditd Logs

An example event for log looks as following:

{
    "@timestamp": "2016-01-03T00:37:51.394Z",
    "agent": {
        "ephemeral_id": "4948283b-ae19-4913-b625-f18d574838dd",
        "id": "0e729d36-7ce3-4bd5-885c-ec10bc843703",
        "name": "docker-fleet-agent",
        "type": "filebeat",
        "version": "8.6.0"
    },
    "auditd": {
        "log": {
            "proctitle": "bash",
            "sequence": 194438
        }
    },
    "data_stream": {
        "dataset": "auditd.log",
        "namespace": "ep",
        "type": "logs"
    },
    "ecs": {
        "version": "8.7.0"
    },
    "elastic_agent": {
        "id": "0e729d36-7ce3-4bd5-885c-ec10bc843703",
        "snapshot": true,
        "version": "8.6.0"
    },
    "event": {
        "action": "proctitle",
        "agent_id_status": "verified",
        "dataset": "auditd.log",
        "ingested": "2023-01-13T11:42:40Z",
        "kind": "event"
    },
    "host": {
        "architecture": "x86_64",
        "containerized": false,
        "hostname": "docker-fleet-agent",
        "id": "4547978d96e74314a1c62b73cc5cad86",
        "ip": [
            "172.22.0.4"
        ],
        "mac": [
            "02-42-AC-16-00-04"
        ],
        "name": "docker-fleet-agent",
        "os": {
            "codename": "focal",
            "family": "debian",
            "kernel": "5.15.49-linuxkit",
            "name": "Ubuntu",
            "platform": "ubuntu",
            "type": "linux",
            "version": "20.04.5 LTS (Focal Fossa)"
        }
    },
    "input": {
        "type": "log"
    },
    "log": {
        "file": {
            "path": "/tmp/service_logs/audit.log"
        },
        "offset": 1706
    },
    "tags": [
        "auditd-log"
    ]
}

Exported fields

FieldDescriptionType
@timestamp
Event timestamp.
date
auditd.log.a0
The first argument to the system call.
keyword
auditd.log.addr
ip
auditd.log.audit_failure
keyword
auditd.log.cipher
keyword
auditd.log.data
keyword
auditd.log.default-context
keyword
auditd.log.dev
keyword
auditd.log.direction
keyword
auditd.log.dst_prefixlen
long
auditd.log.entries
long
auditd.log.family
keyword
auditd.log.fe
keyword
auditd.log.fi
keyword
auditd.log.format
keyword
auditd.log.fp
keyword
auditd.log.fver
keyword
auditd.log.gpg_res
keyword
auditd.log.hostname
keyword
auditd.log.id
keyword
auditd.log.img-ctx
keyword
auditd.log.inode
keyword
auditd.log.item
The item field indicates which item out of the total number of items. This number is zero-based; a value of 0 means it is the first item.
keyword
auditd.log.items
The number of items in an event.
keyword
auditd.log.kernel
keyword
auditd.log.key_enforce
boolean
auditd.log.kind
keyword
auditd.log.ksize
long
auditd.log.laddr
ip
auditd.log.list
keyword
auditd.log.lport
long
auditd.log.major
keyword
auditd.log.minor
keyword
auditd.log.mode
keyword
auditd.log.model
keyword
auditd.log.name
keyword
auditd.log.new-level
keyword
auditd.log.new_auid
For login events this is the new audit ID. The audit ID can be used to trace future events to the user even if their identity changes (like becoming root).
keyword
auditd.log.new_pe
keyword
auditd.log.new_pi
keyword
auditd.log.new_pp
keyword
auditd.log.new_ses
For login events this is the new session ID. It can be used to tie a user to future events by session ID.
keyword
auditd.log.node
keyword
auditd.log.obj
keyword
auditd.log.objtype
keyword
auditd.log.old
keyword
auditd.log.old-level
keyword
auditd.log.old_auid
For login events this is the old audit ID used for the user prior to this login.
keyword
auditd.log.old_pe
keyword
auditd.log.old_pi
keyword
auditd.log.old_pp
keyword
auditd.log.old_ses
For login events this is the old session ID used for the user prior to this login.
keyword
auditd.log.op
keyword
auditd.log.pfs
keyword
auditd.log.proctitle
keyword
auditd.log.rdev
keyword
auditd.log.reason
keyword
auditd.log.record_type
keyword
auditd.log.reset
keyword
auditd.log.root_dir
keyword
auditd.log.rport
long
auditd.log.saddr
keyword
auditd.log.selected-context
keyword
auditd.log.sequence
The audit event sequence number.
long
auditd.log.ses
keyword
auditd.log.sig
keyword
auditd.log.spid
keyword
auditd.log.src_prefixlen
long
auditd.log.subj
keyword
auditd.log.success
boolean
auditd.log.sw
keyword
auditd.log.sw_type
keyword
auditd.log.syscall
keyword
auditd.log.table
keyword
auditd.log.tty
keyword
auditd.log.uid
keyword
auditd.log.unit
keyword
auditd.log.uuid
keyword
auditd.log.ver
keyword
auditd.log.virt
keyword
auditd.log.vm
keyword
auditd.log.vm-ctx
keyword
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
container.runtime
Runtime managing this container.
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
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
error.message
Error message.
match_only_text
event.action
The action captured by the event. This describes the information in the event. It is more specific than event.category. Examples are group-add, process-started, file-created. The value is normally defined by the implementer.
keyword
event.dataset
Event dataset
constant_keyword
event.ingested
Timestamp when an event arrived in the central data store. This is different from @timestamp, which is when the event originally occurred. It's also different from event.created, which is meant to capture the first time an agent saw the event. In normal conditions, assuming no tampering, the timestamps should chronologically look like this: @timestamp < event.created < event.ingested.
date
event.module
Event module
constant_keyword
event.original
Raw text message of entire event. Used to demonstrate log integrity or where the full log message (before splitting it up in multiple parts) may be required, e.g. for reindex. This field is not indexed and doc_values are disabled. It cannot be searched, but it can be retrieved from _source. If users wish to override this and index this field, please see Field data types in the Elasticsearch Reference.
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
group.id
Unique identifier for the group on the system/platform.
keyword
group.name
Name of the group.
keyword
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.offset
Log offset
long
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.direction
Direction of the network traffic. 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
process.args
Array of process arguments, starting with the absolute path to the executable. May be filtered to protect sensitive information.
keyword
process.args_count
Length of the process.args array. This field can be useful for querying or performing bucket analysis on how many arguments were provided to start a process. More arguments may be an indication of suspicious activity.
long
process.executable
Absolute path to the process executable.
keyword
process.executable.text
Multi-field of process.executable.
match_only_text
process.exit_code
The exit code of the process, if this is a termination event. The field should be absent if there is no exit code for the event (e.g. process start).
long
process.name
Process name. Sometimes called program name or similar.
keyword
process.name.text
Multi-field of process.name.
match_only_text
process.parent.pid
Process id.
long
process.pid
Process id.
long
process.working_directory
The working directory of the process.
keyword
process.working_directory.text
Multi-field of process.working_directory.
match_only_text
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.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
tags
List of keywords used to tag each event.
keyword
user.audit.group.id
Unique identifier for the group on the system/platform.
keyword
user.audit.group.name
Name of the group.
keyword
user.audit.id
One or multiple unique identifiers of the user.
keyword
user.audit.name
Short name or login of the user.
keyword
user.effective.group.id
Unique identifier for the group on the system/platform.
keyword
user.effective.group.name
Name of the group.
keyword
user.effective.id
Unique identifier of the user.
keyword
user.effective.name
Short name or login of the user.
keyword
user.effective.name.text
Multi-field of user.effective.name.
match_only_text
user.filesystem.group.id
Unique identifier for the group on the system/platform.
keyword
user.filesystem.group.name
Name of the group.
keyword
user.filesystem.id
One or multiple unique identifiers of the user.
keyword
user.filesystem.name
Short name or login of the user.
keyword
user.group.id
Unique identifier for the group on the system/platform.
keyword
user.id
Unique identifier of the user.
keyword
user.name
Short name or login of the user.
keyword
user.name.text
Multi-field of user.name.
match_only_text
user.owner.group.id
Unique identifier for the group on the system/platform.
keyword
user.owner.group.name
Name of the group.
keyword
user.owner.id
One or multiple unique identifiers of the user.
keyword
user.owner.name
Short name or login of the user.
keyword
user.saved.group.id
Unique identifier for the group on the system/platform.
keyword
user.saved.group.name
Name of the group.
keyword
user.saved.id
One or multiple unique identifiers of the user.
keyword
user.saved.name
Short name or login of the user.
keyword
user.target.group.id
Unique identifier for the group on the system/platform.
keyword
user.target.group.name
Name of the group.
keyword
user.target.id
Unique identifier of the user.
keyword
user.target.name
Short name or login of the user.
keyword
user.target.name.text
Multi-field of user.target.name.
match_only_text
user.terminal
Terminal or tty device on which the user is performing the observed activity.
keyword

Changelog

VersionDetails
3.6.0
Enhancement View pull request
Update package to ECS 8.7.0.
3.5.1
Enhancement View pull request
Added categories and/or subcategories.
3.5.0
Enhancement View pull request
Update package to ECS 8.6.0.
3.4.2
Bug fix View pull request
Allow processing of messages with quoted spaces.
3.4.1
Enhancement View pull request
Migrate the visualizations to by value in dashboards to minimize the saved object clutter and reduce time to load
3.4.0
Enhancement View pull request
Update package to ECS 8.5.0.
3.3.4
Bug fix View pull request
Remove duplicate fields.
3.3.3
Enhancement View pull request
Use ECS geo.location definition.
3.3.2
Enhancement View pull request
Remove unused visualizations
3.3.1
Bug fix View pull request
Add mapping for event.original.
3.3.0
Enhancement View pull request
Update package to ECS 8.4.0
3.2.0
Enhancement View pull request
Update package to ECS 8.3.0.
3.1.0
Enhancement View pull request
Change title to Auditd Logs
3.0.0
Enhancement View pull request
Migrate map visualisation from tile_map to map object
2.2.0
Enhancement View pull request
Update to ECS 8.2
2.1.2
Bug fix View pull request
Set event.outcome value according ECS specification
2.1.1
Enhancement View pull request
Add documentation for multi-fields
2.1.0
Enhancement View pull request
Store EXECVE arguments in process.args array.
2.0.0
Enhancement View pull request
Update to ECS 8.0

Enhancement View pull request
process.ppid is replaced with process.parent.pid (breaking change)
1.3.1
Bug fix View pull request
Regenerate test files using the new GeoIP database
1.3.0
Enhancement View pull request
Change test IPs to the supported set for GeoIP

Enhancement View pull request
Add 8.0.0 version constraint
1.2.4
Enhancement View pull request
Uniform with guidelines
1.2.3
Enhancement View pull request
Update Title and Description.
1.2.2
Bug fix View pull request
Ensure boolean fields are true/false
1.2.1
Bug fix View pull request
Fix logic that checks for the 'forwarded' tag
1.2.0
Enhancement View pull request
Update to ECS 1.12.0
1.1.3
Enhancement View pull request
Convert to generated ECS fields
1.1.2
Enhancement View pull request
update to ECS 1.11.0
1.1.1
Enhancement View pull request
Escape special characters in docs
1.1.0
Enhancement View pull request
Update integration description
1.0.0
Enhancement View pull request
make GA

Enhancement View pull request
Set "event.module" and "event.dataset"
0.2.0
Enhancement View pull request
update to ECS 1.10.0 and apply changes to prepare for package GA
0.1.2
Enhancement View pull request
set version in the ingest pipeline and make event.original optional
0.1.1
Enhancement View pull request
update to ECS 1.9.0
0.1.0
Enhancement View pull request
Add changes to use ECS 1.8 fields.
0.0.1
Enhancement View pull request
initial release