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Detection rules › Panther

Carbon Black Log Entry Flagged

Severity
medium
Log types
CarbonBlack.Audit
Tags
Credential Access, Brute Force
Reference
https://docs.vmware.com/en/VMware-Carbon-Black-Cloud/services/carbon-black-cloud-user-guide/GUID-FB61E4E3-6431-4226-A4E3-5949FB75922B.html
Source
github.com/panther-labs/panther-analysis

Detects when Carbon Black has flagged a log as important, such as failed login attempts and locked accounts.

MITRE ATT&CK coverage

TacticTechniques
Credential AccessT1110 Brute Force

Rule body yaml

AnalysisType: rule
RuleID: "CarbonBlack.Audit.Flagged"
LogTypes:
  - CarbonBlack.Audit
Description: "Detects when Carbon Black has flagged a log as important, such as failed login attempts and locked accounts."
DisplayName: "Carbon Black Log Entry Flagged"
Enabled: true
Filename: cb_audit_flagged.py
Severity: Medium
Tags:
  - Credential Access
  - Brute Force
Reports:
  MITRE ATT&CK:
    - TA0006:T1110
Reference: https://docs.vmware.com/en/VMware-Carbon-Black-Cloud/services/carbon-black-cloud-user-guide/GUID-FB61E4E3-6431-4226-A4E3-5949FB75922B.html
Threshold: 1
DedupPeriodMinutes: 60
Tests:
  - Name: Flagged
    ExpectedResult: true
    Log:
      {
        "clientIp": "12.34.56.78",
        "description": "User bob.ross@acme.com retrieved secret for API ID JFDNIPS464 in org 12345",
        "eventId": "66443924833011eeac3cb393f3d07f9f",
        "eventTime": "2023-11-14 20:57:19.186000000",
        "flagged": true,
        "loginName": "bob.ross@acme.com",
        "orgName": "acme.com",
        "verbose": false,
      }
  - Name: Other role granted
    ExpectedResult: false
    Log:
      {
        "clientIp": "12.34.56.78",
        "description": "Created grant: psc:cnn:A1234567:BC1234567890 with role Read Only",
        "eventId": "66443924833011eeac3cb393f3d07f9f",
        "eventTime": "2023-11-14 20:57:19.186000000",
        "flagged": false,
        "loginName": "bob.ross@acme.com",
        "orgName": "acme.com",
        "requestUrl": "/access/v2/orgs/A1234567/grants",
        "verbose": false,
      }
  - Name: Sensor update requested
    ExpectedResult: true
    Log:
      {
        "description": "Requested sensor update to version: 2.16.0.2566828 for the following device: ABCDEFG012 (ID: 21360056)",
        "eventId": "ac5f46923e9c11efaadd07ba65d6cd7b",
        "eventTime": "2024-07-10 09:13:29.952000000",
        "flagged": true,
        "loginName": "",
        "orgName": "acme.com",
        "requestUrl": "/settings/users/pushSensorKits",
        "verbose": false
      }

Detection logic

Condition

flagged is_not_null

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
flaggedis_not_null
  • (no value, null check)

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
loginName
clientIp
description