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Detection rules › Panther

Zoom Meeting Passcode Disabled

Severity
low
Log types
Zoom.Operation
Tags
Zoom, Collection:Video Capture
Reference
https://support.zoom.us/hc/en-us/articles/360033559832-Zoom-Meeting-and-Webinar-passcodes
Source
github.com/panther-labs/panther-analysis

Meeting passcode requirement has been disabled from usergroup

MITRE ATT&CK coverage

TacticTechniques
CollectionT1125 Video Capture

Rule body yaml

AnalysisType: rule
Filename: zoom_operation_passcode_disabled.py
RuleID: "Zoom.PasscodeDisabled"
DisplayName: "Zoom Meeting Passcode Disabled"
Enabled: true
LogTypes:
  - Zoom.Operation
Tags:
  - Zoom
  - Collection:Video Capture
Severity: Low
Description: >
  Meeting passcode requirement has been disabled from usergroup
Reports:
  MITRE ATT&CK:
    - TA0009:T1125
Reference: https://support.zoom.us/hc/en-us/articles/360033559832-Zoom-Meeting-and-Webinar-passcodes
Runbook: >
  Follow up with user or Zoom admin to ensure this meeting room's use case does not allow a passcode.
SummaryAttributes:
  - p_any_emails
Tests:
  - Name: Meeting Passcode Disabled
    ExpectedResult: true
    Log:
      {
        "time": "2021-11-17 00:37:24Z",
        "operator": "homer@panther.io",
        "category_type": "User Group",
        "action": "Update",
        "operation_detail": "Edit Group Springfield  - Personal Meeting ID (PMI) Passcode: from On to Off",
        "p_log_type": "Zoom.Operation",
      }
  - Name: Meeting Passcode Enabled
    ExpectedResult: false
    Log:
      {
        "time": "2021-11-17 00:37:24Z",
        "operator": "homer@panther.io",
        "category_type": "User Group",
        "action": "Update",
        "operation_detail": "Edit Group Springfield  - Personal Meeting ID (PMI) Passcode: from Off to On",
        "p_log_type": "Zoom.Operation",
      }
  - Name: Add User Group
    ExpectedResult: false
    Log:
      {
        "time": "2021-11-17 00:37:24Z",
        "operator": "homer@panther.io",
        "category_type": "User Group",
        "action": "Add",
        "operation_detail": "Add Group Engineers",
        "p_log_type": "Zoom.Operation",
      }

Detection logic

Condition

category_type eq "User Group"

This rule also runs imperative logic the parser cannot express as a filter; the conditions above are the structured part it could extract.

Indicators

Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.

FieldKindValues
category_typeeq
  • User Group

Output fields

Fields the rule emits when it matches. Chronicle authors list these in the outcome block; they appear on the detection and $risk_score drives alerting. Sentinel / Defender XDR rules build them up through project / summarize / extend stages. Sentinel maps these into alert fields via entityMappings and customDetails; Defender XDR custom detections surface them as alert fields directly.

Field
operator