Phoenix Studio
Convert indexed Sigma rules into analyst-ready detections.
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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
Suspicious Desktopimgdownldr Command
Target Profile
Splunk
Splunk SPL & tstats data model queries
Format Mode
Default
Plain SPL queries
Conversion Output
Suspicious Desktopimgdownldr Command
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: Suspicious Desktopimgdownldr Command
id: bb58aa4a-b80b-415a-a2c0-2f65a4c81009
status: test
description: Detects a suspicious Microsoft desktopimgdownldr execution with parameters used to download files from the Internet
references:
- https://labs.sentinelone.com/living-off-windows-land-a-new-native-file-downldr/
- https://twitter.com/SBousseaden/status/1278977301745741825
author: Florian Roth (Nextron Systems)
date: 2020-07-03
modified: 2021-11-27
tags:
- attack.command-and-control
- attack.t1105
logsource:
category: process_creation
product: windows
detection:
selection1:
CommandLine|contains: ' /lockscreenurl:'
selection1_filter:
CommandLine|contains:
- '.jpg'
- '.jpeg'
- '.png'
selection_reg:
CommandLine|contains|all:
- 'reg delete'
- '\PersonalizationCSP'
condition: ( selection1 and not selection1_filter ) or selection_reg
falsepositives:
- False positives depend on scripts and administrative tools used in the monitored environment
level: high
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_desktopimgdownldr_susp_execution.yml