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
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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
Masquerading as Linux Crond Process
Target Profile
Splunk
Splunk through pysigma-backend-splunk.
Format Mode
Default
Default pySigma output mode for this backend.
Conversion Output
Masquerading as Linux Crond Process
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: Masquerading as Linux Crond Process
id: 9d4548fa-bba0-4e88-bd66-5d5bf516cda0
status: test
description: |
Masquerading occurs when the name or location of an executable, legitimate or malicious, is manipulated or abused for the sake of evading defenses and observation.
Several different variations of this technique have been observed.
references:
- https://github.com/redcanaryco/atomic-red-team/blob/8a82e9b66a5b4f4bc5b91089e9f24e0544f20ad7/atomics/T1036.003/T1036.003.md#atomic-test-2---masquerading-as-linux-crond-process
author: Timur Zinniatullin, oscd.community
date: 2019-10-21
modified: 2023-08-22
tags:
- attack.defense-evasion
- attack.t1036.003
logsource:
product: linux
service: auditd
detection:
selection:
type: 'execve'
a0: 'cp'
a1: '/bin/sh'
a2|endswith: '/crond'
condition: selection
level: medium
CLI command
Copy the exact command to reproduce this translation locally.
sigma convert --without-pipeline -t splunk -f default rules/linux/auditd/execve/lnx_auditd_masquerading_crond.yml