Find FalconDuplicate - CrowdStrike/psfalcon GitHub Wiki

Find-FalconDuplicate

SYNOPSIS

Find potential duplicate hosts within your Falcon environment

DESCRIPTION

If the 'Hosts' parameter is not provided, all Host information will be retrieved. An error will be displayed if required fields 'cid', 'device_id', 'first_seen', 'last_seen', 'hostname' and any defined 'filter' value are not present.

Hosts are grouped by 'cid', 'hostname' and any defined 'filter' values, then sorted by 'last_seen' time. Any result other than the one with the most recent 'last_seen' time is considered a duplicate host and is returned within the output.

Hosts can be hidden from the Falcon console by piping the results of 'Find-FalconDuplicate' to 'Invoke-FalconHostAction' using the action 'hide_host'.

Requires 'Hosts: Read'.

PARAMETERS

Name Type Description Min Max Allowed Pipeline PipelineByName
Hosts Object[] Array of detailed Host results
Filter String[] Property to determine duplicates, in addition to 'Hostname' external_ip
local_ip
mac_address
os_version
platform_name
serial_number
Platform String Filter hosts by platform Linux
Mac
Windows

SYNTAX

Find-FalconDuplicate [[-Hosts] <Object[]>] [[-Filter] <String[]>] [[-Platform] <String>] [-WhatIf] [-Confirm] [<CommonParameters>]

USAGE

Finding potential duplicate hosts

PSFalcon includes a command called Find-FalconDuplicate which will analyze the result of a detailed Get-FalconHost output to find potential duplicates (through grouping by hostname, then sorting by last_seen time and selecting all but the most recent). Additional criteria can be added using the Filter parameter.

Find-FalconDuplicate

Create a CSV of potential duplicate hosts

Find-FalconDuplicate | Export-Csv .\duplicates.csv

See Find duplicate hosts and hide them.

2025-07-02: PSFalcon v2.2.8

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