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Convert indexed Sigma rules into analyst-ready detections.

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Indexed Rules

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CLI Versions

Newest: 2.0.2

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Active Rule

Potential Initial Access via DLL Search Order Hijacking

sigma-cli version

Backend

Format

Target Profile

Splunk

Splunk SPL & tstats data model queries

Format Mode

Default

Plain SPL queries

Conversion Output

Potential Initial Access via DLL Search Order Hijacking

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 Initial Access via DLL Search Order Hijacking
id: dbbd9f66-2ed3-4ca2-98a4-6ea985dd1a1c
status: test
description: Detects attempts to create a DLL file to a known desktop application dependencies folder such as Slack, Teams or OneDrive and by an unusual process. This may indicate an attempt to load a malicious module via DLL search order hijacking.
references:
    - https://github.com/elastic/protections-artifacts/commit/746086721fd385d9f5c6647cada1788db4aea95f#diff-5d46dd4ac6866b4337ec126be8cee0e115467b3e8703794ba6f6df6432c806bc
    - https://posts.specterops.io/automating-dll-hijack-discovery-81c4295904b0
author: Tim Rauch (rule), Elastic (idea)
date: 2022-10-21
tags:
    - attack.privilege-escalation
    - attack.persistence
    - attack.t1566
    - attack.t1566.001
    - attack.initial-access
    - attack.t1574
    - attack.t1574.001
    - attack.defense-evasion
logsource:
    product: windows
    category: file_event
detection:
    selection:
        Image|endswith:
            # add more processes when you find them
            - '\winword.exe'
            - '\excel.exe'
            - '\powerpnt.exe'
            - '\MSACCESS.EXE'
            - '\MSPUB.EXE'
            - '\fltldr.exe'
            - '\cmd.exe'
            - '\certutil.exe'
            - '\mshta.exe'
            - '\cscript.exe'
            - '\wscript.exe'
            - '\curl.exe'
            - '\powershell.exe'
            - '\pwsh.exe'
        TargetFilename|endswith: '.dll'
        TargetFilename|contains|all:
            - '\Users\'
            - '\AppData\'
        TargetFilename|contains:
            # add more suspicious paths when you find them
            - '\Microsoft\OneDrive\'
            - '\Microsoft OneDrive\'
            - '\Microsoft\Teams\'
            - '\Local\slack\app-'
            - '\Local\Programs\Microsoft VS Code\'
    filter:
        Image|endswith: '\cmd.exe'
        TargetFilename|contains|all:
            - '\Users\'
            - '\AppData\'
            - '\Microsoft\OneDrive\'
            - '\api-ms-win-core-'
    condition: selection and not filter
falsepositives:
    - Unknown
level: medium

CLI command

Copy the exact command to reproduce this translation locally.

sigma convert --without-pipeline -t splunk -f default rules/windows/file/file_event/file_event_win_initial_access_dll_search_order_hijacking.yml