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Convert indexed Sigma rules into analyst-ready detections.
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Indexed Rules
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17
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CLI Versions
10
Newest: 2.0.2
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Active Rule
Potential Emotet Rundll32 Execution
Target Profile
Splunk
Splunk SPL & tstats data model queries
Format Mode
Default
Plain SPL queries
Conversion Output
Potential Emotet Rundll32 Execution
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 Emotet Rundll32 Execution
id: 54e57ce3-0672-46eb-a402-2c0948d5e3e9
status: test
description: Detecting Emotet DLL loading by looking for rundll32.exe processes with command lines ending in ,RunDLL or ,Control_RunDLL
references:
- https://paste.cryptolaemus.com/emotet/2020/12/22/emotet-malware-IoCs_12-22-20.html
- https://cyber.wtf/2021/11/15/guess-whos-back/
author: FPT.EagleEye
date: 2020-12-25
modified: 2023-02-21
tags:
- attack.defense-evasion
- attack.t1218.011
- detection.emerging-threats
logsource:
category: process_creation
product: windows
detection:
selection_img:
- Image|endswith: '\rundll32.exe'
- OriginalFileName: 'RUNDLL32.EXE'
selection_cli:
CommandLine|endswith:
- ',RunDLL'
- ',Control_RunDLL'
# - ',#1' too generic - function load by ordinal is not Emotet specific
filter_legitimate_dll:
CommandLine|endswith:
- '.dll,Control_RunDLL'
- '.dll",Control_RunDLL'
- '.dll'',Control_RunDLL'
filter_ide:
ParentImage|endswith: '\tracker.exe' # When Visual Studio compile NodeJS program, it might use MSBuild to create tracker.exe and then, the tracker.exe fork rundll32.exe
condition: all of selection_* and not 1 of filter_*
falsepositives:
- Unknown
level: critical
CLI command
Copy the exact command to reproduce this translation locally.
sigma convert --without-pipeline -t splunk -f default rules-emerging-threats/2020/Malware/Emotet/proc_creation_win_malware_emotet_rundll32_execution.yml