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Ubiquiti - Large ICMP to external server
Description
'Detects large ICMP packets to external host.'
- Rule type
- Scheduled
- Version
- 1.0.2
- Declared status
- Available
- Query frequency
- 1h
- Query period
- 14d
- Trigger
- gt 0
Declared MITRE coverage
Declared sources
Metadata from the source file. No dependencies inferred from KQL.
Connectors
Data types
KQL query
Original query, unchanged.
UbiquitiAuditEvent
| where EventCategory =~ 'firewall'
| where ipv4_is_private(SrcIpAddr)
| where ipv4_is_private(DstIpAddr) == 'False'
| where NetworkProtocol =~ 'ICMP'
| summarize avg_packet_length = avg(toint(NetworkBytes))
| extend a = 1
| join (UbiquitiAuditEvent
| where EventCategory =~ 'firewall'
| where ipv4_is_private(SrcIpAddr)
| where ipv4_is_private(DstIpAddr) == 'False'
| where NetworkProtocol =~ 'ICMP'
| extend a = 1) on a
| where toint(NetworkBytes) > 2*avg_packet_length
| extend IPCustomEntity = SrcIpAddr
Declared entities
Related content
Links established from declared identifiers and solution manifests.
Source provenance
GitHubDisplayed values come from files in Azure/Azure-Sentinel. They describe the published template, not your workspace configuration.
- Commit
9800e51↗- Source identifier
6df85d74-e32f-4b71-80e5-bfe2af00be1c
GSTEP / CATALOG TRACKING
Added to catalog : 16 Sept 2026 · 05:49 UTC
Last change observed : 16 Sept 2026 · 05:49 UTC