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Corelight - Multiple files sent over HTTP with abnormal requests

Description

'Detects sources sending multiple compressed files greater than 10MBs sent over HTTP in a short amount of time.'
Rule type
Scheduled
Version
2.2.0
Declared status
Available
Query frequency
1h
Query period
1h
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 threshold = 25;
let fl_size_threshold = 10000000;
union isfuzzy=true corelight_http, corelight_http_agg
| where method in~ ('POST', 'PUT')
| where isempty(referrer)
| where tolong(request_body_len) > fl_size_threshold
| summarize count() by uri, id_orig_h, bin(TimeGenerated, 15m)
| where count_ > threshold

Declared entities

IP

Related content

Links established from declared identifiers and solution manifests.

Source provenance

GitHub

Displayed values come from files in Azure/Azure-Sentinel. They describe the published template, not your workspace configuration.

Source identifier
7226d37b-50ee-4e3b-9f80-5b74080d8f2c
Additional source files 2Solutions/Corelight/Analytic Rules/CorelightMultipleFilesSentOverHTTPAbnormalRequests.yamlsource ↗Solutions/Corelight/Data/Solution_Corelight.jsonsolution-membership ↗
GSTEP / CATALOG TRACKING

Added to catalog : 16 Sept 2026 · 05:49 UTC
Last change observed : 16 Sept 2026 · 05:49 UTC

GSTEP sync dates, separate from the source content’s publication dates.