Zoom Meeting with no Passcode

This rule identifies Zoom meetings that are created without a passcode. Meetings without a passcode are susceptible to Zoombombing. Zoombombing is carried out by taking advantage of Zoom sessions that are not protected with a passcode. Zoombombing refers to the unwanted, disruptive intrusion, generally by Internet trolls and hackers, into a video conference call. In a typical Zoombombing incident, a teleconferencing session is hijacked by the insertion of material that is lewd, obscene, racist, or antisemitic in nature, typically resulting of the shutdown of the session.

Rule type: query

Rule indices:

Severity: medium

Risk score: 47

Runs every: 5m

Searches indices from: None (Date Math format, see also Additional look-back time)

Maximum alerts per execution: 100

References:

Tags:

Version: 7

Rule authors:

Rule license: Elastic License v2

## Setup

The Zoom Filebeat module or similarly structured data is required to be compatible with this rule.

event.type:creation and event.module:zoom and event.dataset:zoom.webhook and
  event.action:meeting.created and not zoom.meeting.password:*