Persistence via Microsoft Outlook VBA

edit

Persistence via Microsoft Outlook VBA

edit

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

Rule type: eql

Rule indices:

logs-endpoint.events.file-*
winlogbeat-*
logs-windows.sysmon_operational-*
endgame-*
logs-m365_defender.event-*
logs-sentinel_one_cloud_funnel.*

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
Data Source: Sysmon
Data Source: Microsoft Defender for Endpoint
Data Source: SentinelOne

Version: 307

Rule authors:

Elastic

Rule license: Elastic License v2

Rule query

edit

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/

« Persistence via Microsoft Office AddIns Office Test Registry Persistence »