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SlackAudit - Multiple archived files uploaded in short period of time

Description

'This query helps to detect when a user uploads multiple archived files in short period of time.'
Rule type
Scheduled
Version
1.0.1
Declared status
Available
Query frequency
1d
Query period
1d
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 = 10;
SlackAudit
| where DvcAction =~ 'file_uploaded'
| extend FE = tolower(tostring(split(EntityFileName, '.')[-1]))
| where FE in~ ('tar', 'bz2', 'gz', 'tgz', 'z', 'tbz2', 'zst', 'zip', 'zipx', '7z', 'rar', 'sfx')
| summarize UploadCount = count(), StartTime = min(TimeGenerated), EndTime = max(TimeGenerated) by SrcUserName, bucket = bin(TimeGenerated, 15m)
| where UploadCount > threshold
| extend AccountCustomEntity = SrcUserName

Declared entities

Account

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
3db0cb83-5fa4-4310-a8a0-d8d66183f0bd
Additional source files 2Solutions/SlackAudit/Analytic Rules/SlackAuditMultipleArchivedFilesUploadedInShortTimePeriod.yamlsource ↗Solutions/SlackAudit/data/Solution_SlackAudit.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.