IPSEC NAT Traversal Port Activity

This rule detects events that could be describing IPSEC NAT Traversal traffic. IPSEC is a VPN technology that allows one system to talk to another using encrypted tunnels. NAT Traversal enables these tunnels to communicate over the Internet where one of the sides is behind a NAT router gateway. This may be common on your network, but this technique is also used by threat actors to avoid detection.

Rule type: query

Rule indices:

packetbeat-*
auditbeat-*
filebeat-*
logs-network_traffic.*
logs-panw.*

Severity: low

Risk score: 21

Runs every: 5m

Searches indices from: now-9m (Date Math format, see also Additional look-back time)

Maximum alerts per execution: 100

References: None

Tags:

Tactic: Command and Control
Domain: Endpoint
Use Case: Threat Detection
Data Source: PAN-OS

Version: 105

Rule authors:

Elastic

Rule license: Elastic License v2

Rule query

edit

(event.dataset: network_traffic.flow or (event.category: (network or network_traffic))) and network.transport:udp and destination.port:4500

Framework: MITRE ATT&CK^TM

Tactic:
- Name: Command and Control
- ID: TA0011
- Reference URL: https://attack.mitre.org/tactics/TA0011/

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