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Convert indexed Sigma rules into analyst-ready detections.

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CLI Versions

Newest: 2.0.2

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Active Rule

Potential Exploitation Attempt From Office Application

sigma-cli version

Backend

Format

Target Profile

Splunk

Splunk SPL & tstats data model queries

Format Mode

Default

Plain SPL queries

Conversion Output

Potential Exploitation Attempt From Office Application

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 Exploitation Attempt From Office Application
id: 868955d9-697e-45d4-a3da-360cefd7c216
status: test
description: Detects Office applications executing a child process that includes directory traversal patterns. This could be an attempt to exploit CVE-2022-30190 (MSDT RCE) or CVE-2021-40444 (MSHTML RCE)
references:
    - https://twitter.com/sbousseaden/status/1531653369546301440
    - https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-40444
    - https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-30190
author: Christian Burkard (Nextron Systems), @SBousseaden (idea)
date: 2022-06-02
modified: 2023-02-04
tags:
    - attack.execution
    - attack.defense-evasion
    - cve.2021-40444
    - detection.emerging-threats
logsource:
    product: windows
    category: process_creation
detection:
    selection:
        ParentImage|endswith:
            - '\winword.exe'
            - '\excel.exe'
            - '\powerpnt.exe'
            - '\msaccess.exe'
            - '\mspub.exe'
            - '\eqnedt32.exe'
            - '\visio.exe'
        CommandLine|contains:
            - '../../../..'
            - '..\..\..\..'
            - '..//..//..//..'
    condition: selection
falsepositives:
    - Unknown
level: high

CLI command

Copy the exact command to reproduce this translation locally.

sigma convert --without-pipeline -t splunk -f default rules-emerging-threats/2021/Exploits/CVE-2021-40444/proc_creation_win_exploit_cve_2021_40444_office_directory_traversal.yml