adding an extra detections

This commit is contained in:
mvelazco
2021-09-01 16:24:04 -04:00
parent cccff50264
commit 503ce68ee1
2 changed files with 64 additions and 0 deletions
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name: Domain Group Discovery With Dsquery
id: f0c9d62f-a232-4edd-b17e-bc409fb133d4
version: 1
date: '2021-09-01'
author: Mauricio Velazco, Splunk
type: Hunting
datamodel:
- Endpoint
description: This analytic looks for the execution of `dsquery.exe` with command-line
arguments utilized to query for domain groups. The argument `group`, returns a list of all domain groups.
Red Teams and adversaries alike use may leverage dsquery.exe to enumerate domain groups 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="dsquery.exe")
(Processes.process="*group*")
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)` | `domain_group_discovery_with_dsquery_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/T1069/002/
tags:
analytic_story:
- Active Directory Discovery
dataset:
- https://media.githubusercontent.com/media/splunk/attack_data/master/datasets/attack_techniques/T1069.002/AD_discovery/windows-sysmon.log
kill_chain_phases:
- Reconnaissance
mitre_attack_id:
- T1069.002
product:
- Splunk Enterprise
- Splunk Enterprise Security
- Splunk Cloud
required_fields:
- _time
security_domain: endpoint
impact: 30
confidence: 50
risk_score: 15
context:
- Source:Endpoint
- Stage:Discovery
- Stage:Recon
message: Domain group discovery enumeration on $dest$ by $user$
observable:
- name: dest
type: Endpoint
role:
- Victim
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name: Domain Group Discovery With Dsquery Unit Test
tests:
- name: Domain Group Discovery With Dsquery
file: endpoint/domain_group_discovery_with_dsquery.yml
pass_condition: '| stats count | where count > 0'
earliest_time: '-24h'
latest_time: 'now'
attack_data:
- file_name: windows-sysmon.log
data: https://media.githubusercontent.com/media/splunk/attack_data/master/datasets/attack_techniques/T1069.002/AD_discovery/windows-sysmon.log
source: XmlWinEventLog:Microsoft-Windows-Sysmon/Operational
sourcetype: xmlwineventlog