Elastic Security Detection Rules

Azure Full Network Packet Capture Detected

Last updated 7 months ago on 2025-01-15
Created 4 years ago on 2021-08-12

About

Identifies potential full network packet capture in Azure. Packet Capture is an Azure Network Watcher feature that can be used to inspect network traffic. This feature can potentially be abused to read sensitive data from unencrypted internal traffic.
Tags
Domain: CloudData Source: AzureTactic: Credential AccessLanguage: kuery
Severity
medium
Risk Score
47
MITRE ATT&CK™

Credential Access (TA0006)(opens in a new tab or window)

↳ Network Sniffing (T1040)(opens in a new tab or window)

False Positive Examples
Full Network Packet Capture may be done by a system or network administrator. Verify whether the user identity, user agent, and/or hostname should be making changes in your environment. Full Network Packet Capture from unfamiliar users or hosts should be investigated. If known behavior is causing false positives, it can be exempted from the rule.
License
Elastic License v2(opens in a new tab or window)

Definition

Rule Type
Query (Kibana Query Language)
Integration Pack
Prebuilt Security Detection Rules
Index Patterns
filebeat-*logs-azure*
Related Integrations

azure(opens in a new tab or window)

Query
event.dataset:azure.activitylogs and azure.activitylogs.operation_name:
    (
        MICROSOFT.NETWORK/*/STARTPACKETCAPTURE/ACTION or
        MICROSOFT.NETWORK/*/VPNCONNECTIONS/STARTPACKETCAPTURE/ACTION or
        MICROSOFT.NETWORK/*/PACKETCAPTURES/WRITE
    ) and
event.outcome:(Success or success)

Install detection rules in Elastic Security

Detect Azure Full Network Packet Capture Detected in the Elastic Security detection engine by installing this rule into your Elastic Stack.

To setup this rule, check out the installation guide for Prebuilt Security Detection Rules(opens in a new tab or window).