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Cisco Cloud Security - Connection to Unpopular Website Detected
An inconsistency was detected in the sources: variants or an invalid file. Check the files and commit shown below.
Description
'Detects first connection to an unpopular website (possible malicious payload delivery).'
- Rule type
- Scheduled
- Version
- 1.1.3
- Declared status
- Available
- Query frequency
- 1d
- 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.
let top_million_list = Cisco_Umbrella
| where EventType == "proxylogs"
| extend Hostname = parse_url(UrlOriginal)["Host"]
| summarize count() by tostring(Hostname)
| top 1000000 by count_
| summarize make_list(Hostname);
Cisco_Umbrella
| where EventType == "proxylogs"
| extend Hostname = parse_url(UrlOriginal)["Host"]
| where Hostname !in (top_million_list)
| extend Message = "Connect to unpopular website (possible malicious payload delivery)"
| project TimeGenerated, Message, SrcIpAddr, DstIpAddr, UrlOriginal
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
75297f62-10a8-4fc1-9b2a-12f25c6f05a7
GSTEP / CATALOG TRACKING
Added to catalog : 16 Sept 2026 · 05:49 UTC
Last change observed : 16 Sept 2026 · 05:49 UTC