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Cisco Umbrella - Request to blocklisted file type
An inconsistency was detected in the sources: variants or an invalid file. Check the files and commit shown below.
Description
'Detects request to potentially harmful file types (.ps1, .bat, .vbs, etc.).'
- Rule type
- Scheduled
- Version
- 1.0.1
- Query frequency
- 10m
- Query period
- 10m
- 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 file_ext_blocklist = dynamic(['.ps1', '.vbs', '.bat', '.scr']);
let lbtime = 10m;
Cisco_Umbrella
| where TimeGenerated > ago(lbtime)
| where EventType == 'proxylogs'
| where DvcAction =~ 'Allowed'
| extend file_ext = extract(@'.*(\.\w+)$', 1, UrlOriginal)
| extend Filename = extract(@'.*\/*\/(.*\.\w+)$', 1, UrlOriginal)
| where file_ext in (file_ext_blocklist)
| project TimeGenerated, SrcIpAddr, Identities, Filename
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
de58ee9e-b229-4252-8537-41a4c2f4045e
Additional source files 1
Detections/CiscoUmbrella/CiscoUmbrellaRequestBlocklistedFileType.yamlsource ↗GSTEP / CATALOG TRACKING
Added to catalog : 16 Sept 2026 · 05:49 UTC
Last change observed : 16 Sept 2026 · 05:49 UTC