IMPORTANT: No additional bug fixes or documentation updates
will be released for this version. For the latest information, see the
current release documentation.
Enumerating Domain Trusts via NLTEST.EXE
editEnumerating Domain Trusts via NLTEST.EXE
editIdentifies the use of nltest.exe for domain trust discovery purposes. Adversaries may use this command-line utility to enumerate domain trusts and gain insight into trust relationships, as well as the state of Domain Controller (DC) replication in a Microsoft Windows NT Domain.
Rule type: eql
Rule indices:
- winlogbeat-*
- logs-endpoint.events.*
- logs-windows.*
Severity: low
Risk score: 23
Runs every: 5m
Searches indices from: now-9m (Date Math format, see also Additional look-back time
)
Maximum alerts per execution: 100
References:
Tags:
- Elastic
- Host
- Windows
- Threat Detection
- Discovery
Version: 3
Rule authors:
- Elastic
Rule license: Elastic License v2
Investigation guide
edit## Setup If enabling an EQL rule on a non-elastic-agent index (such as beats) for versions <8.2, events will not define `event.ingested` and default fallback for EQL rules was not added until 8.2, so you will need to add a custom pipeline to populate `event.ingested` to @timestamp for this rule to work.
Rule query
editprocess where event.type in ("start", "process_started") and process.name : "nltest.exe" and process.args : ( "/DCLIST:*", "/DCNAME:*", "/DSGET*", "/LSAQUERYFTI:*", "/PARENTDOMAIN", "/DOMAIN_TRUSTS", "/BDC_QUERY:*")
Framework: MITRE ATT&CKTM
-
Tactic:
- Name: Discovery
- ID: TA0007
- Reference URL: https://attack.mitre.org/tactics/TA0007/
-
Technique:
- Name: Domain Trust Discovery
- ID: T1482
- Reference URL: https://attack.mitre.org/techniques/T1482/