mirror of
https://github.com/splunk/security_content
synced 2026-06-08 17:32:49 +00:00
P4T12ICK
64 lines
2.4 KiB
YAML
64 lines
2.4 KiB
YAML
name: GetAdComputer with PowerShell
|
|
id: c5a31f80-5888-4d81-9f78-1cc65026316e
|
|
version: 1
|
|
date: '2021-09-07'
|
|
author: Mauricio Velazco, Splunk
|
|
type: Hunting
|
|
datamodel:
|
|
- Endpoint
|
|
description: This analytic looks for the execution of `powershell.exe` with command-line
|
|
arguments utilized to discover remote systems. The `Get-AdComputer' commandlet returns
|
|
a list of all domain computers. Red Teams and adversaries alike may use this commandlet
|
|
to identify remote systems for situational awareness and Active Directory Discovery.
|
|
search: '| tstats `security_content_summariesonly` count min(_time) as firstTime max(_time)
|
|
as lastTime from datamodel=Endpoint.Processes where (Processes.process_name="powershell.exe")
|
|
(Processes.process=*Get-AdComputer*) by Processes.dest Processes.user Processes.parent_process
|
|
Processes.process_name Processes.process Processes.process_id Processes.parent_process_id
|
|
| `drop_dm_object_name(Processes)` | `security_content_ctime(firstTime)` | `security_content_ctime(lastTime)`
|
|
| `getadcomputer_with_powershell_filter`'
|
|
how_to_implement: To successfully implement this search you need to be ingesting information
|
|
on process that include the name of the process responsible for the changes from
|
|
your endpoints into the `Endpoint` datamodel in the `Processes` node.
|
|
known_false_positives: Administrators or power users may use this command for troubleshooting.
|
|
references:
|
|
- https://attack.mitre.org/techniques/T1018/
|
|
tags:
|
|
analytic_story:
|
|
- Active Directory Discovery
|
|
confidence: 50
|
|
context:
|
|
- Source:Endpoint
|
|
- Stage:Discovery
|
|
dataset:
|
|
- https://media.githubusercontent.com/media/splunk/attack_data/master/datasets/attack_techniques/T1018/AD_discovery/windows-sysmon.log
|
|
impact: 30
|
|
kill_chain_phases:
|
|
- Reconnaissance
|
|
message: Remote system discovery enumeration on $dest$ by $user$
|
|
mitre_attack_id:
|
|
- T1018
|
|
observable:
|
|
- name: dest
|
|
type: Endpoint
|
|
role:
|
|
- Victim
|
|
product:
|
|
- Splunk Enterprise
|
|
- Splunk Enterprise Security
|
|
- Splunk Cloud
|
|
required_fields:
|
|
- Processes.dest
|
|
- Processes.user
|
|
- Processes.parent_process_name
|
|
- Processes.parent_process
|
|
- Processes.original_file_name
|
|
- Processes.process_name
|
|
- Processes.process
|
|
- Processes.process_id
|
|
- Processes.parent_process_path
|
|
- Processes.process_path
|
|
- Processes.parent_process_id
|
|
risk_score: 15
|
|
security_domain: endpoint
|
|
asset_type: Endpoint
|