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.

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Indexed Rules

3,707

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Backends

Live from sigconverter.io

CLI Versions

Newest: 2.0.2

Translation Workspace

Shape the rule before it leaves Phoenix

Tune Translation

Active Rule

BITS Transfer Job With Uncommon Or Suspicious Remote TLD

sigma-cli version

Backend

Format

Target Profile

Splunk

Splunk SPL & tstats data model queries

Format Mode

Default

Plain SPL queries

Conversion Output

BITS Transfer Job With Uncommon Or Suspicious Remote TLD

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: BITS Transfer Job With Uncommon Or Suspicious Remote TLD
id: 6d44fb93-e7d2-475c-9d3d-54c9c1e33427
status: test
description: Detects a suspicious download using the BITS client from a FQDN that is unusual. Adversaries may abuse BITS jobs to persistently execute or clean up after malicious payloads.
references:
    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1197/T1197.md
    - https://twitter.com/malmoeb/status/1535142803075960832
author: Florian Roth (Nextron Systems)
date: 2022-06-10
modified: 2025-02-28
tags:
    - attack.defense-evasion
    - attack.persistence
    - attack.t1197
logsource:
    product: windows
    service: bits-client
detection:
    selection:
        EventID: 16403
    filter_main_generic:
        RemoteName|contains:
            - '.azureedge.net/'
            - '.com/'
            - '.sfx.ms/'
            - 'download.mozilla.org/' # https://download.mozilla.org/?product=firefox-101.0.1-partial-101.0&amp;os=win64&amp;lang=en-US
            - 'cdn.onenote.net/'
            - 'cdn.office.net/'
            - 'tscdn.m365.static.microsoft/'
    condition: selection and not 1 of filter_main_*
falsepositives:
    - This rule doesn't exclude other known TLDs such as ".org" or ".net". It's recommended to apply additional filters for software and scripts that leverage the BITS service
level: medium

CLI command

Copy the exact command to reproduce this translation locally.

sigma convert --without-pipeline -t splunk -f default rules/windows/builtin/bits_client/win_bits_client_new_transfer_via_uncommon_tld.yml