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Explore published rules with transparent provenance, licensing, and ATT&CK mappings.

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The public catalogue of detection rules. Every entry carries its source, the identifier it had there, its licence and its ATT&CK mapping.

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MediumElastic detection rules

Potential Computer Account NTLM Relay Activity

Identifies potential relay activities against a Computer account by identifying authentication events using the computer account coming from from hosts other than the server that owns the account. Attackers may relay the computer account hash after capturing it using forced authentication.

ATT&CK coverage

Outside the enterprise matrix

T1187Forced Authentication 23 detections cover this technique
T1557Adversary-in-the-Middle 36 detections cover this technique
T1557.001Name Resolution Poisoning and SMB Relay 23 detections cover this technique

Detection requirements

Log source category: event_index

Detection logic

Published to signed-in readers

The query as its source wrote it, its canonical form, and the content hash that pins this exact revision.

Provenance

Where this detection came from, and what you may do with it.

At source: Open at source
Written by: Elastic
Licence: Elastic License 2.0Read the licence
Published: Aug 27, 2026
Version: 1