IPSEC NAT Traversal Port Activityedit
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.*
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
Version: 104
Rule authors:
- Elastic
Rule license: Elastic License v2
Rule queryedit
(event.dataset: network_traffic.flow or (event.category: (network or network_traffic))) and network.transport:udp and destination.port:4500
Framework: MITRE ATT&CKTM
-
Tactic:
- Name: Command and Control
- ID: TA0011
- Reference URL: https://attack.mitre.org/tactics/TA0011/