Detection rules › Splunk
Domain Trust Discovery Commands - Windows (Windows Event Log)
Adversaries may attempt to gather information on domain trust relationships that may be used to identify lateral movement opportunities in Windows multi-domain/forest environments. This use case detects executions of domain trust discovery commands used with nltest.exe. nltest.exe is not included in the detection to account for instances where nltest.exe has been renamed
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Discovery |
References
Telemetry coverage
| Provider | Record / event type |
|---|---|
| Security-Auditing | Event ID 4688: A new process has been created. |
Rule body
id: '22209.39127'
title: Domain Trust Discovery Commands - Windows
description: 'Adversaries may attempt to gather information on domain trust relationships
that may be used to identify lateral movement opportunities in Windows multi-domain/forest
environments. This use case detects executions of domain trust discovery commands
used with nltest.exe. nltest.exe is not included in the detection to account for
instances where nltest.exe has been renamed. -- Software Association: Play -- Atomics
T1482 Test #2'
logic_format: Splunk
logic: '`get_endpoint_data` `get_endpoint_data_winevent` (TERM(EventCode=4688) OR
"<EventID>4688<" OR Type=Process) ("/domain_trusts" OR "/trusted_domains") | table
_time, host, user, process, process_*, parent_* | bin span=1s | stats values(*)
as * by _time, host '
techniques:
- discovery:domain trust discovery
technique_id:
- T1482
data_category:
- Process command-line parameters
- Windows event logs
references:
- https://thedfirreport.com/2023/06/12/a-truly-graceful-wipe-out/
- https://github.com/redcanaryco/atomic-red-team/blob/master/atomics/T1482/T1482.md#atomic-test-2---windows---discover-domain-trusts-with-nltest
Stages and Predicates
Stage 1: search
`get_endpoint_data` `get_endpoint_data_winevent` (TERM(EventCode=4688) OR "<EventID>4688<" OR Type=Process) ("/domain_trusts" OR "/trusted_domains")
Stage 2: table
| table _time, host, user, process, process_*, parent_*
Stage 3: bucket
| bin span=1s
Stage 4: stats
| stats values(*) as * by _time, host
Indicators
These rows show field, operator, and value matches.
| Field | Kind | Values | Search |
|---|---|---|---|
EventCode | eq |
| field:"EventID" kind:eq value:"4688" |
Search terms
These SPL tokens match against raw event text.
| Stage | Term |
|---|---|
| 1 | "<EventID>4688<" |
| 1 | "/domain_trusts" |
| 1 | "/trusted_domains" |