IMPORTANT: No additional bug fixes or documentation updates will be released for this version. For the latest information, see the current release documentation.

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Agent Spoofing - Mismatched Agent ID

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Agent Spoofing - Mismatched Agent ID

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Detects events which have a mismatch on the expected event agent ID. The status "agent_id_mismatch" occurs when the expected agent ID associated with the API key does not match the actual agent ID in an event. This could indicate attempts to spoof events in order to masquerade actual activity to evade detection.

Rule type: query

Rule indices:

logs-*
metrics-*
traces-*

Severity: high

Risk score: 73

Runs every: 5m

Searches indices from: now-9m (Date Math format, see also Additional look-back time)

Maximum alerts per execution: 100

References: None

Tags:

Elastic
Threat Detection
Defense Evasion

Version: 2

Rule authors:

Elastic

Rule license: Elastic License v2

Rule query

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event.agent_id_status:agent_id_mismatch

Framework: MITRE ATT&CK^TM

Tactic:
- Name: Defense Evasion
- ID: TA0005
- Reference URL: https://attack.mitre.org/tactics/TA0005/
Technique:
- Name: Masquerading
- ID: T1036
- Reference URL: https://attack.mitre.org/techniques/T1036/

« Appendix G: Downloadable rule update v0.16.1 Agent Spoofing - Multiple Hosts Using Same Agent »