1200KM / sigma-rule
NTLM Logon — Sigma Rule
Sigma rule 98c3bcf1-56f2-49dc-9d8d-c66cf190238b. NTLM Logon — Sigma Rule. Detects logons using NTLM, which could be caused by a legacy source or attackers
Rule metadata and linked tags
Author: Florian Roth (Nextron Systems). Source status: test; severity: low. Source dates: 2018-06-08 / 2024-07-22.
{
"product": "windows",
"service": "ntlm",
"definition": "Requires events from Microsoft-Windows-NTLM/Operational"
}Pinned original Sigma rule · Detection Rule License 1.1
Source SHA-256: 69a61bde5ec22bd3cc5888dab2974d989d33e240738830470e055660b4c867c3
Detection logic
Original source YAML. Source-tag agreement is not proof of complete semantic coverage. This rule has not been compiled for a SIEM backend or validated against live telemetry here.
title: NTLM Logon
id: 98c3bcf1-56f2-49dc-9d8d-c66cf190238b
status: test
description: Detects logons using NTLM, which could be caused by a legacy source or attackers
references:
- https://twitter.com/JohnLaTwC/status/1004895028995477505
author: Florian Roth (Nextron Systems)
date: 2018-06-08
modified: 2024-07-22
tags:
- attack.lateral-movement
- attack.t1550.002
logsource:
product: windows
service: ntlm
definition: Requires events from Microsoft-Windows-NTLM/Operational
detection:
selection:
EventID: 8002
condition: selection
falsepositives:
- Legacy hosts
level: low
False positives
- Legacy hosts
Source references
Connected ecosystem references
Exact source-tagged techniques
Telemetry review
Read the original logsource above, then inspect the linked detection workspaces for technique-level sensor context. No per-rule telemetry equivalence is inferred.
Pinned research references. No browser attack runner, live simulation result or validated detector is asserted. Source mappings and validation limits are preserved. ATT&CK / Atomic provenance · Detection provenance.