↳ GitHub sourceAnalytics ruleMedium

Detect .NET runtime being loaded in JScript for code execution

Description

This query detects .NET being loaded from wscript or cscript to run .NET code, such as cactustorch and sharpshooter. All based on the DotNetToJScript by James Foreshaw documented here https://github.com/tyranid/DotNetToJScript.

Rule type: Scheduled
Version: 1.0.0
Declared status: Available
Query frequency: 1h
Query period: 1h
Trigger: gt 0

Declared MITRE coverage

Execution T1204

Declared sources

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

Connectors

MicrosoftThreatProtection

Data types

DeviceImageLoadEvents

KQL query

Original query, unchanged.

DeviceImageLoadEvents 
| where FileName in~ ("mscoree.dll", "mscorlib.dll", "mscorlib.ni.dll") 
| where tolower(InitiatingProcessFileName) in ("wscript.exe", "cscript.exe", "mshta.exe")

Declared entities

AccountHostProcess

Source provenance

GitHub

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

File: Solutions/FalconFriday/Analytic Rules/DotNetToJScript.yaml ↗
Commit: 9800e51 ↗
Source identifier: 9f921513-65f3-48a2-ae7d-326c5901c55e

Additional source files 2

Solutions/FalconFriday/Analytic Rules/DotNetToJScript.yamlsource ↗Solutions/FalconFriday/Data/Solution_FalconFriday.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.