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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Persistence via Microsoft Outlook VBA

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Persistence via Microsoft Outlook VBA

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Detects attempts to establish persistence on an endpoint by installing a rogue Microsoft Outlook VBA Template.

Rule type: eql

Rule indices:

logs-endpoint.events.*
winlogbeat-*
logs-windows.*
endgame-*

Severity: medium

Risk score: 47

Runs every: 5m

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

Maximum alerts per execution: 100

References:

Tags:

Domain: Endpoint
OS: Windows
Use Case: Threat Detection
Tactic: Persistence
Data Source: Elastic Endgame
Data Source: Elastic Defend

Version: 104

Rule authors:

Elastic

Rule license: Elastic License v2

Investigation guide

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Rule query

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file where host.os.type == "windows" and event.type != "deletion" and
 file.path : "C:\\Users\\*\\AppData\\Roaming\\Microsoft\\Outlook\\VbaProject.OTM"

Framework: MITRE ATT&CK^TM

Tactic:
- Name: Persistence
- ID: TA0003
- Reference URL: https://attack.mitre.org/tactics/TA0003/
Technique:
- Name: Office Application Startup
- ID: T1137
- Reference URL: https://attack.mitre.org/techniques/T1137/

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