Phoenix Studio
Convert indexed Sigma rules into analyst-ready detections.
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Indexed Rules
3,707
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Backends
17
Live from sigconverter.io
CLI Versions
10
Newest: 2.0.2
Translation Workspace
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Active Rule
Potential Java WebShell Upload in SAP NetViewer Server
Target Profile
Splunk
Splunk SPL & tstats data model queries
Format Mode
Default
Plain SPL queries
Conversion Output
Potential Java WebShell Upload in SAP NetViewer Server
Using Splunk · Default · sigma-cli 2.0.2
Translation controls
Adjust the rule on the left, then regenerate when you want a fresh backend-native query.
BackendSplunkFormatDefaultVersion2.0.2
title: Potential Java WebShell Upload in SAP NetViewer Server
id: 639b893f-f93a-4e53-a7c8-f08cf73fe7f7
status: experimental
description: |
Detects potential Java webshell uploads via HTTP requests with Content-Type 'application/octet-stream' and Java file extensions.
This behavior might indicate exploitation of vulnerabilities like CVE-2025-31324, which allows remote code execution through webshells in SAP NetViewer.
references:
- https://blog.eclecticiq.com/china-nexus-nation-state-actors-exploit-sap-netweaver-cve-2025-31324-to-target-critical-infrastructures
author: Swachchhanda Shrawan Poudel (Nextron Systems)
date: 2025-05-14
tags:
- attack.persistence
- attack.t1505.003
- detection.emerging-threats
- cve.2025-31324
logsource:
category: webserver
detection:
selection:
cs-content-type: 'application/octet-stream'
cs-method: 'POST'
cs-uri-stem|contains|all:
- '/irj/'
- '.jsp'
cs-uri-stem|endswith:
- '.class'
- '.java'
- '.jsp'
condition: selection
falsepositives:
- Legitimate uploads of Java files in development environments
level: high
CLI command
Copy the exact command to reproduce this translation locally.
sigma convert --without-pipeline -t splunk -f default rules-emerging-threats/2025/Exploits/CVE-2025-31324/web_lnx_exploit_cve_2025_31324_sap_netviewer_webshell_uploaded.yml