ICMP Timestamp or Information Request from the Internet

Last updated 2 months ago on 2026-06-25
Created 2 months ago on 2026-06-25

About

Identifies inbound ICMP Timestamp (type 13) or Information (type 15) requests from external addresses to internal RFC1918 destinations. These message types are rarely used in modern networks and are commonly associated with host and path fingerprinting during reconnaissance.
Tags
Domain: NetworkTactic: DiscoveryTactic: ReconnaissanceUse Case: Network Security MonitoringUse Case: Threat DetectionData Source: Network TrafficLanguage: kuery
Severity
low
Risk Score
21
MITRE ATT&CK™

Discovery (TA0007)(external, opens in a new tab or window)

Reconnaissance (TA0043)(external, opens in a new tab or window)

License
Elastic License v2(external, opens in a new tab or window)

Definition

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

network_traffic(external, opens in a new tab or window)

Query
text code block:
data_stream.dataset:network_traffic.icmp and (network_traffic.icmp.request.type:(13 or 15) or icmp.request.type:(13 or 15)) and destination.ip:( 10.0.0.0/8 or 172.16.0.0/12 or 192.168.0.0/16 ) and not source.ip:( 10.0.0.0/8 or 100.64.0.0/10 or 127.0.0.0/8 or 169.254.0.0/16 or 172.16.0.0/12 or 192.168.0.0/16 or 192.0.0.0/24 or 192.0.0.0/29 or 192.0.0.8/32 or 192.0.0.9/32 or 192.0.0.10/32 or 192.0.0.170/32 or 192.0.0.171/32 or 192.0.2.0/24 or 192.175.48.0/24 or 192.31.196.0/24 or 192.52.193.0/24 or 192.88.99.0/24 or 198.18.0.0/15 or 198.51.100.0/24 or 203.0.113.0/24 or 224.0.0.0/4 or 240.0.0.0/4 or "::1" or "FE80::/10" or "FF00::/8" )

Install detection rules in Elastic Security

Detect ICMP Timestamp or Information Request from the Internet 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(external, opens in a new tab or window).