sigmahighHunting

Rundll32 Execution Without Parameters

Detects rundll32 execution without parameters as observed when running Metasploit windows/smb/psexec exploit module

MITRE ATT&CK

lateral-movementexecution

Detection Query

selection:
  CommandLine:
    - rundll32.exe
    - rundll32
condition: selection

Author

Bartlomiej Czyz, Relativity

Created

2021-01-31

Data Sources

windowsProcess Creation Events

Platforms

windows

References

https://bczyz1.github.io/2021/01/30/psexec.html

Tags

attack.lateral-movementattack.t1021.002attack.t1570attack.executionattack.t1569.002

Raw Content

title: Rundll32 Execution Without Parameters
id: 5bb68627-3198-40ca-b458-49f973db8752
status: test
description: Detects rundll32 execution without parameters as observed when running Metasploit windows/smb/psexec exploit module
references:
    - https://bczyz1.github.io/2021/01/30/psexec.html
author: Bartlomiej Czyz, Relativity
date: 2021-01-31
modified: 2023-02-28
tags:
    - attack.lateral-movement
    - attack.t1021.002
    - attack.t1570
    - attack.execution
    - attack.t1569.002
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        CommandLine:
            - 'rundll32.exe'
            - 'rundll32'
    condition: selection
falsepositives:
    - False positives may occur if a user called rundll32 from CLI with no options
level: high