Phoenix Studio
Convert indexed Sigma rules into analyst-ready detections.
This studio is built around Phoenix's own rule corpus, not a blank editor. Search by title or rule id, choose a local pySigma backend, then reveal pipelines only when you actually need them.
Indexed Rules
3,731
Ready to search
Backends
17
Loaded from pysigma-node
pySigma Versions
10
Newest: 1.3.3
Translation Workspace
Shape the rule before it leaves Phoenix
Tune Translation
Active Rule
JScript Compiler Execution
Target Profile
Splunk
Splunk through pysigma-backend-splunk.
Format Mode
Default
Default pySigma output mode for this backend.
Conversion Output
JScript Compiler Execution
Using Splunk · Default · pySigma 1.3.3
Translation controls
Adjust the rule on the left, then regenerate when you want a fresh backend-native query.
BackendSplunkFormatDefaultVersion1.3.3
title: JScript Compiler Execution
id: 52788a70-f1da-40dd-8fbd-73b5865d6568
status: test
description: |
Detects the execution of the "jsc.exe" (JScript Compiler).
Attacker might abuse this in order to compile JScript files on the fly and bypassing application whitelisting.
references:
- https://lolbas-project.github.io/lolbas/Binaries/Jsc/
- https://www.phpied.com/make-your-javascript-a-windows-exe/
- https://twitter.com/DissectMalware/status/998797808907046913
author: frack113
date: 2022-05-02
modified: 2024-04-24
tags:
- attack.defense-evasion
- attack.t1127
logsource:
product: windows
category: process_creation
detection:
selection:
- Image|endswith: '\jsc.exe'
- OriginalFileName: 'jsc.exe'
condition: selection
falsepositives:
- Legitimate use to compile JScript by developers.
# Note: Can be decreased to informational or increased to medium depending on how this utility is used.
level: low
CLI command
Copy the exact command to reproduce this translation locally.
sigma convert --without-pipeline -t splunk -f default rules/windows/process_creation/proc_creation_win_jsc_execution.yml