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Newest: 2.0.2

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Active Rule

WMIC Loading Scripting Libraries

sigma-cli version

Backend

Format

Target Profile

Splunk

Splunk SPL & tstats data model queries

Format Mode

Default

Plain SPL queries

Conversion Output

WMIC Loading Scripting Libraries

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: WMIC Loading Scripting Libraries
id: 06ce37c2-61ab-4f05-9ff5-b1a96d18ae32
related:
    - id: 8d63dadf-b91b-4187-87b6-34a1114577ea
      type: similar
    - id: 05c36dd6-79d6-4a9a-97da-3db20298ab2d
      type: similar
status: test
description: |
    Detects threat actors proxy executing code and bypassing application controls by leveraging wmic and the `/FORMAT` argument switch to download and execute an XSL file (i.e js, vbs, etc).
    It could be an indicator of SquiblyTwo technique, which uses Windows Management Instrumentation (WMI) to execute malicious code.
references:
    - https://securitydatasets.com/notebooks/atomic/windows/defense_evasion/SDWIN-201017061100.html
    - https://twitter.com/dez_/status/986614411711442944
    - https://lolbas-project.github.io/lolbas/Binaries/Wmic/
author: Roberto Rodriguez (Cyb3rWard0g), OTR (Open Threat Research)
date: 2020-10-17
modified: 2022-10-13
tags:
    - attack.defense-evasion
    - attack.t1220
logsource:
    category: image_load
    product: windows
detection:
    selection:
        Image|endswith: '\wmic.exe'
        ImageLoaded|endswith:
            - '\jscript.dll'
            - '\vbscript.dll'
    condition: selection
falsepositives:
    - The command wmic os get lastbootuptime loads vbscript.dll
    - The command wmic os get locale loads vbscript.dll
    - Since the ImageLoad event doesn't have enough information in this case. It's better to look at the recent process creation events that spawned the WMIC process and investigate the command line and parent/child processes to get more insights
    - The command `wmic ntevent` loads vbscript.dll
level: medium

CLI command

Copy the exact command to reproduce this translation locally.

sigma convert --without-pipeline -t splunk -f default rules/windows/image_load/image_load_wmic_remote_xsl_scripting_dlls.yml