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Ransom Protect User Blocked

Description

Detects malicious users blocked by CTERA Ransom Protect AI engine.
Rule type
NRT
Version
1.0.2
Declared status
Available

Declared MITRE coverage

Declared sources

Metadata from the source file. No dependencies inferred from KQL.

Connectors

Data types

KQL query

Original query, unchanged.

Syslog
| where SyslogMessage contains "Ransom Protect mechanism blocked"
| extend 
    Portal = extract("portal:(\\w+)", 1, SyslogMessage),
    EdgeFiler = extract("Edge Filer:(\\w+-\\d+)", 1, SyslogMessage),
    IP = extract("IP:([0-9.]+)", 1, SyslogMessage),
    User = extract("user:(\\w+)", 1, SyslogMessage),
    BlockedTime = extract("at ([^ ]+)", 1, SyslogMessage)
| project TimeGenerated, Portal, EdgeFiler, IP, User, BlockedTime

Declared entities

AccountIP

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
d5d4766b-e547-44da-9d85-48ff393db201
Additional source files 2Solutions/CTERA/Analytic Rules/RansomwareUserBlocked.yamlsource ↗Solutions/CTERA/Data/Solution_CTERA.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.