Rundll32 Dll In Temp

Date: 2025-07-29 ID: 76f9a94c-6c63-11f0-89ae-629be3538068 Author: Teoderick Contreras, Splunk Environment: attack_range Directory: rundll32_dll_in_temp

Description

Generated datasets for rundll32 dll in temp in attack range.

MITRE ATT&CK Techniques

ID	Technique	Tactic
T1218.011	Rundll32	Defense Evasion

Environment Details

Field	Value
Environment	attack_range
Directory	rundll32_dll_in_temp
Test Date	2025-07-29

Datasets

The following datasets were collected during this attack simulation:

Sysmon

Path: /datasets/attack_techniques/T1218.011/rundll32_dll_in_temp/rundll32_tmp.log
Sourcetype: XmlWinEventLog
Source: XmlWinEventLog:Microsoft-Windows-Sysmon/Operational

The following detections in our security content repository use this attack data for testing:

Detection Name	Type	Source	MITRE ATT&CK	Analytic Story
Windows Rundll32 Load DLL in Temp Dir	`Anomaly`	Endpoint	T1218.011	Interlock Rat

Usage Instructions

Replay with Splunk Attack Data

Replay attack data with replay.py from Splunk Attack Data.

1python replay.py --dataset /datasets/attack_techniques/T1218.011/rundll32_dll_in_temp/rundll32_tmp.log --index attack_data

Manual Import

Download the dataset files from the paths listed above
Configure your Splunk instance with the appropriate sourcetypes
Import the logs using the Splunk Add Data wizard

Find more detections and analytics for this attack technique in our security content repository.

Source: GitHub | Version: 1.0