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 live sigma-cli backend, then reveal pipelines only when you actually need them.
Indexed Rules
3,707
Ready to search
Backends
17
Live from sigconverter.io
CLI Versions
10
Newest: 2.0.2
Translation Workspace
Shape the rule before it leaves Phoenix
Tune Translation
Active Rule
Potentially Suspicious Malware Callback Communication - Linux
Target Profile
Splunk
Splunk SPL & tstats data model queries
Format Mode
Default
Plain SPL queries
Conversion Output
Potentially Suspicious Malware Callback Communication - Linux
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: Potentially Suspicious Malware Callback Communication - Linux
id: dbfc7c98-04ab-4ab7-aa94-c74d22aa7376
related:
- id: 4b89abaa-99fe-4232-afdd-8f9aa4d20382
type: derived
status: test
description: |
Detects programs that connect to known malware callback ports based on threat intelligence reports.
references:
- https://www.mandiant.com/resources/blog/triton-actor-ttp-profile-custom-attack-tools-detections
- https://www.mandiant.com/resources/blog/ukraine-and-sandworm-team
- https://www.elastic.co/guide/en/security/current/potential-non-standard-port-ssh-connection.html
- https://thehackernews.com/2024/01/systembc-malwares-c2-server-analysis.html
- https://www.cybereason.com/blog/sliver-c2-leveraged-by-many-threat-actors
author: hasselj
date: 2024-05-10
tags:
- attack.persistence
- attack.command-and-control
- attack.t1571
logsource:
category: network_connection
product: linux
detection:
selection:
Initiated: 'true'
DestinationPort:
- 888
- 999
- 2200
- 2222
- 4000
- 4444
- 6789
- 8531
- 50501
- 51820
filter_main_local_ranges:
DestinationIp|cidr:
- '127.0.0.0/8'
- '10.0.0.0/8'
- '172.16.0.0/12'
- '192.168.0.0/16'
- '169.254.0.0/16'
- '::1/128' # IPv6 loopback
- 'fe80::/10' # IPv6 link-local addresses
- 'fc00::/7' # IPv6 private addresses
condition: selection and not 1 of filter_main_*
falsepositives:
- Unknown
level: high
CLI command
Copy the exact command to reproduce this translation locally.
sigma convert --without-pipeline -t splunk -f default rules/linux/network_connection/net_connection_lnx_susp_malware_callback_port.yml