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Elastic Docs ›Elastic Security Solution [8.2] ›Elastic Security APIs ›Endpoint management API

Trusted applications

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Trusted applications

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Create, retrieve, update, and delete endpoint Trusted applications via API. Endpoint trusted applications are managed via the Exceptions API using a static container id (list_id) of endpoint_trusted_apps, which must be created prior to adding the trusted applications. Access to these APIs requires that a user has authorization to manage endpoints.

Console supports Elasticsearch APIs only. Console doesn’t allow interactions with Kibana APIs. You must use curl or another HTTP tool instead. For more information, refer to Run Elasticsearch API requests.

Create trusted applications container

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POST <kibana host>:<port>/api/exception_lists

Request body

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A JSON object containing the fields listed below. The request must have the following:

  • The list_id value must be endpoint_trusted_apps.
  • The namespace_type value must be agnostic.
  • The type value must be endpoint.
Name Type Description Required

description

String

Describes the trusted applications container.

Yes

list_id

String

Must be set to endpoint_trusted_apps.

Yes

meta

Object

Placeholder for metadata about the list container.

No

name

String

The trusted applications container’s name.

Yes

namespace_type

String

Must be set to agnostic.

Yes

tags

String[]

String array containing words and phrases to help categorize the trusted applications container.

No

type

String

Must be set to endpoint.

Yes

Example request

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POST api/exception_lists
{
  "description": "Endpoint Security Trusted Apps List",
  "name": "Endpoint Security Trusted Apps List",
  "list_id": "endpoint_trusted_apps",
  "type": "endpoint",
  "namespace_type": "agnostic"
}

Response code

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200
Indicates a successful call.

Response payload

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{
  "_tags": [],
  "created_at": "2020-07-13T09:33:46.187Z",
  "created_by": "elastic",
  "description": "Endpoint Security Trusted Apps List",
  "name": "Endpoint Security Trusted Apps List",
  "list_id": "endpoint_trusted_apps",
  "type": "endpoint",
  "namespace_type": "agnostic",
  "id": "f320c070-c4eb-11ea-80bb-11861bae2798",
  "tags": [],
  "tie_breaker_id": "2c08d5a5-2ecc-4d5a-acfb-0a367f25b3f3",
  "updated_at": "2020-07-13T09:33:46.359Z",
  "updated_by": "elastic"
}

Create trusted application

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POST <kibana host>:<port>/api/exception_lists/items

Request body

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A JSON object containing the fields listed below. The request must have the following:

  • The list_id value must be endpoint_trusted_apps.
  • The namespace_type value must be agnostic.
  • The type value must be simple.
Name Type Description Required

comments

comment[]

Array of comment objects.

No, defaults to empty array.

description

String

Describes the trusted application item.

Yes

entries

entry[]

Array containing the trusted application query conditions. See entry object schema for more details.

Yes.

list_id

String

Must be set to endpoint_trusted_apps.

Yes

item_id

String

Unique identifier of the exception item.

No, automatically created when it is not provided.

meta

Object

Placeholder for metadata about the exception item.

No

name

String

The trusted application name.

Yes

namespace_type

String

Must be set to agnostic for endpoint artifacts.

Yes

os_types

os_type[]

Array of os_type values.

Yes

tags

String[]

An array of strings containing words and phrases to help categorize exception items. Tags can also be used to define the trusted application as either globally applicable to all policies or assigned to one or more policies (per policy). See Scope assignment for more details.

No

type

String

Must be set to simple.

Yes
Example request
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POST api/exception_lists/items
{
    "comments": [],
    "description": "some description about this entry",
    "entries": [
        {
            "field": "process.executable.caseless",
            "value": "c:\\applications\\elastic\\foo.exe",
            "type": "match",
            "operator": "included"
        }
    ],
    "list_id": "endpoint_trusted_apps",
    "name": "Some name for this item",
    "namespace_type": "agnostic",
    "os_types": [
        "windows"
    ],
    "tags": [
        "policy:all"
    ],
    "type": "simple"
}

Response code

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200
Indicates a successful call.

Response payload

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{
    "_version": "WzEzNjIsMV0=",
    "comments": [],
    "created_at": "2022-03-01T16:24:39.471Z",
    "created_by": "elastic",
    "description": "some description about this entry",
    "entries": [
        {
            "field": "process.executable.caseless",
            "value": "c:\\applications\\elastic\\foo.exe",
            "type": "match",
            "operator": "included"
        }
    ],
    "id": "17ba1bf0-997c-11ec-b212-9f4ed8b5942f",
    "item_id": "29f480e6-6d34-4bc7-9038-f809f11cb679",
    "list_id": "endpoint_trusted_apps",
    "name": "Some name for this item",
    "namespace_type": "agnostic",
    "os_types": [
        "windows"
    ],
    "tags": [
        "policy:all"
    ],
    "tie_breaker_id": "c6bedf22-2292-4d4a-8eb8-e29a50b5b519",
    "type": "simple",
    "updated_at": "2022-03-01T16:24:39.475Z",
    "updated_by": "elastic"
}

Update trusted application

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PUT <kibana host>:<port>/api/exception_lists/items

Request body

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A JSON object containing the fields listed below. The request must have the following:

  • The list_id value must be endpoint_trusted_apps.
  • The namespace_type value must be agnostic.
  • The type value must be simple.
Name Type Description Required

comments

comment[]

Array of comment objects.

No, defaults to empty array.

description

String

Describes the trusted application.

Yes

entries

entry[]

Array containing the trusted application query conditions. See entry object schema for more details.

Yes.

id

String

The item’s unique identifier.

Yes, when the item’s item_id field is not used.

item_id

String

The item_id of the item you are updating.

Yes, when the item’s id field is not used.

meta

Object

Placeholder for metadata about the exception item.

No

name

String

The trusted application name.

Yes

namespace_type

String

Must be set to agnostic.

Yes

os_types

os_type[]

Array of os_type values.

Yes

tags

String[]

An array of strings containing words and phrases to help categorize exception items. Tags can also be used to define the trusted application as either globally applicable to all policies or assigned to one or more policies (per policy). See Scope assignment for more details.

No

type

String

Must be simple.

Yes

_version

String

The version id, normally returned by the API when the item was retrieved. Use it ensure updates are done against the latest version.

No
Example request
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Updates the entries:

PUT api/exception_lists/items
{
    "_version": "WzEzNjIsMV0=",
    "name": "App ABC",
    "description": "This app is good",
    "entries": [
        {
            "field": "process.hash.sha1",
            "value": "aedb279e378bed6c2db3c9dc9e12ba635e0b391c",
            "type": "match",
            "operator": "included"
        }
    ],
    "os_types": [
        "windows"
    ],
    "tags": [
        "policy:all"
    ],
    "id": "17ba1bf0-997c-11ec-b212-9f4ed8b5942f",
    "comments": [],
    "item_id": "29f480e6-6d34-4bc7-9038-f809f11cb679",
    "namespace_type": "agnostic",
    "type": "simple"
}

Response code

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200
Indicates a successful call.

Response payload

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{
    "_version": "WzEzNjcsMV0=",
    "comments": [],
    "created_at": "2022-03-01T16:24:39.471Z",
    "created_by": "elastic",
    "description": "This app is good",
    "entries": [
        {
            "field": "process.hash.sha1",
            "value": "aedb279e378bed6c2db3c9dc9e12ba635e0b391c",
            "type": "match",
            "operator": "included"
        }
    ],
    "id": "17ba1bf0-997c-11ec-b212-9f4ed8b5942f",
    "item_id": "29f480e6-6d34-4bc7-9038-f809f11cb679",
    "list_id": "endpoint_trusted_apps",
    "name": "App ABC",
    "namespace_type": "agnostic",
    "os_types": [
        "windows"
    ],
    "tags": [
        "policy:all"
    ],
    "tie_breaker_id": "c6bedf22-2292-4d4a-8eb8-e29a50b5b519",
    "type": "simple",
    "updated_at": "2022-03-01T17:21:07.273Z",
    "updated_by": "elastic"
}

Delete trusted application

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DELETE <kibana host>:<port>/api/exception_lists/items

URL query parameters

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The URL query must include one of the following:

  • id - the id of the item, or
  • item_id - the item_id of the item

In addition to the above, namespace_type URL query parameter is also required with a value of agnostic.

Example request
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Deletes the trusted application with item_id of 29f480e6-6d34-4bc7-9038-f809f11cb679:

DELETE api/exception_lists/items?item_id=29f480e6-6d34-4bc7-9038-f809f11cb679&namespace_type=agnostic

Response code

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200
Indicates a successful call.

Response payload

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The item that was deleted:

{
  "_version": "WzEzNjcsMV0=",
  "comments": [],
  "created_at": "2022-03-01T16:24:39.471Z",
  "created_by": "elastic",
  "description": "This app is good",
  "entries": [
    {
      "field": "process.hash.sha1",
      "type": "match",
      "value": "aedb279e378bed6c2db3c9dc9e12ba635e0b391c",
      "operator": "included"
    }
  ],
  "id": "17ba1bf0-997c-11ec-b212-9f4ed8b5942f",
  "item_id": "29f480e6-6d34-4bc7-9038-f809f11cb679",
  "list_id": "endpoint_trusted_apps",
  "name": "App ABC",
  "namespace_type": "agnostic",
  "os_types": [
    "windows"
  ],
  "tags": [
    "policy:all"
  ],
  "tie_breaker_id": "c6bedf22-2292-4d4a-8eb8-e29a50b5b519",
  "type": "simple",
  "updated_at": "2022-03-01T17:21:07.273Z",
  "updated_by": "elastic"
}

Retrieve single trusted application

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GET <kibana host>:<port>/api/exception_lists/items

URL query parameters

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The URL query must include one of the following:

  • id - the id of the item, or
  • item_id - the item_id of the item

In addition to the above, namespace_type URL query parameter is also required with a value of agnostic.

Example request
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GET api/exception_lists/items?item_id=29f480e6-6d34-4bc7-9038-f809f11cb679&namespace_type=agnostic

Response code

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200
Indicates a successful call.

Response payload

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{
  "_version": "WzEzNjcsMV0=",
  "comments": [],
  "created_at": "2022-03-01T16:24:39.471Z",
  "created_by": "elastic",
  "description": "This app is good",
  "entries": [
    {
      "field": "process.hash.sha1",
      "type": "match",
      "value": "aedb279e378bed6c2db3c9dc9e12ba635e0b391c",
      "operator": "included"
    }
  ],
  "id": "17ba1bf0-997c-11ec-b212-9f4ed8b5942f",
  "item_id": "29f480e6-6d34-4bc7-9038-f809f11cb679",
  "list_id": "endpoint_trusted_apps",
  "name": "App ABC",
  "namespace_type": "agnostic",
  "os_types": [
    "windows"
  ],
  "tags": [
    "policy:all"
  ],
  "tie_breaker_id": "c6bedf22-2292-4d4a-8eb8-e29a50b5b519",
  "type": "simple",
  "updated_at": "2022-03-01T17:21:07.273Z",
  "updated_by": "elastic"
}

Find trusted applications

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GET <kibana host>:<port>/api/exception_lists/items/_find

URL query parameters

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Name Type Description Required

list_id

String

Must be set to endpoint_trusted_apps.

Yes

namespace_type

String

Must be set to agnostic.

Yes

page

Integer

The page number to return.

No

per_page

Integer

The number of items to return per page.

No

sort_field

String

Determines which field is used to sort the results.

No

sort_order

String

Determines the sort order, which can be desc or asc.

No

filter

String

A Kibana Query Language (KQL) string to filter the results down.

No
Example request
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GET api/exception_lists/items/_find?page=1&per_page=10&sort_field=name&sort_order=asc&list_id=endpoint_trusted_apps&namespace_type=agnostic

Response code

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200
Indicates a successful call.

Response payload

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{
  "data": [
    {
      "_version": "WzEzNjcsMV0=",
      "comments": [],
      "created_at": "2022-03-01T16:24:39.471Z",
      "created_by": "elastic",
      "description": "This app is good",
      "entries": [
        {
          "field": "process.hash.sha1",
          "type": "match",
          "value": "aedb279e378bed6c2db3c9dc9e12ba635e0b391c",
          "operator": "included"
        }
      ],
      "id": "17ba1bf0-997c-11ec-b212-9f4ed8b5942f",
      "item_id": "29f480e6-6d34-4bc7-9038-f809f11cb679",
      "list_id": "endpoint_trusted_apps",
      "name": "App ABC",
      "namespace_type": "agnostic",
      "os_types": [
        "windows"
      ],
      "tags": [
        "policy:all"
      ],
      "tie_breaker_id": "c6bedf22-2292-4d4a-8eb8-e29a50b5b519",
      "type": "simple",
      "updated_at": "2022-03-01T17:21:07.273Z",
      "updated_by": "elastic"
    }
  ],
  "page": 1,
  "per_page": 10,
  "total": 1
}

Value types

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The following describes the types that can be defined when using the create or update trusted applications APIs:

comment object schema

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Comments are JSON objects containing the following structure:

{
    "comment": "some comment here"
}

When used with the update API, existing comments can be updated by using their associated id, while any comment without the id attribute will be added as a new comment:

{
    "comment": "some comment here - updated",
    "id": "1078cf59-5893-4143-acf7-40a40af16bee"
}

os_types values

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The following are the valid OS types that can be used when creating trusted applications:

  • windows
  • linux
  • macos

Scope assignment

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Trusted applications can be assigned globally across all endpoint policies, or assigned to specific policies. You can assign the trusted application by defining one or more tags with a prefix of policy:. Note that the trusted application can be either global or per policy, but not both. The following tags are available for use in order to control the assignment scope:

  • policy:all : Trusted application is global to all policies. If used, no other policy: tag is allowed.
  • policy:<endpoint-policy-id> : Trusted application is assigned to a policy. Multiple per policy tags can be used to associate the trusted application to multiple policies.

entry object schema

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Endpoint trusted applications allow for at most 3 conditions to be defined. No duplicates are allowed. The following entries are supported by trusted applications:

Process hashes
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Process hashes are supported by all OS types. A hash entry has the following structure:

{
  "field": "process.hash.sha1",
  "value": "aedb279e378bed6c2db3c9dc9e12ba635e0b391c",
  "type": "match",
  "operator": "included"
}
  • field : The following values are supported: process.hash.md5, process.hash.sha1 or process.hash.sha256.
  • value : The hash value associated with the field.
  • type : Must be match.
  • operator : Must be included.
Process file path
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Process file paths are supported by all OS types. A file path entry has the following structure:

{
  "field": "process.executable.caseless",
  "value": "c:/path/to/file.exe",
  "type": "match",
  "operator": "included"
}
  • field : Must be process.executable.caseless.
  • value : The file path to match on.
  • type : Can be set to match (exact match) or wildcard. When using wildcard, the * can be used in the path value.
  • operator : Must be included.
Process signature
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Process signature is supported only for Windows OS type. A signature entry has the following structure:

{
  "field": "process.Ext.code_signature",
  "type": "nested",
  "entries": [
    {
      "field": "trusted",
      "value": "true",
      "type": "match",
      "operator": "included"
    },
    {
      "field": "subject_name",
      "value": "elastic",
      "type": "match",
      "operator": "included"
    }
  ]
}
  • field : Must be set to process.Ext.code_signature.
  • type : Must be set to nested.
  • entries: An array with 2 entry items.
  • entries[0] : An entry with { "field": "trusted", "value": "true", "type": "match", "operator": "included" }.

  • entries[1] : The entry defining the signature to be matched upon:

    • field: Must be set to subject_name.
    • value : The signature name to match on.
    • type : Must be set to match.
    • operator : Must be set to included.
Example for a Windows trusted application:
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[
  {
    "field": "process.hash.sha1",
    "value": "aedb279e378bed6c2db3c9dc9e12ba635e0b391c",
    "type": "match",
    "operator": "included"
  },
  {
    "field": "process.executable.caseless",
    "value": "c:/path/to/file.exe",
    "type": "match",
    "operator": "included"
  },
  {
    "field": "process.Ext.code_signature",
    "entries": [
      {
        "field": "trusted",
        "value": "true",
        "type": "match",
        "operator": "included"
      },
      {
        "field": "subject_name",
        "value": "elastic",
        "type": "match",
        "operator": "included"
      }
    ],
    "type": "nested"
  }
]
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