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Convert indexed Sigma rules into analyst-ready detections.

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CLI Versions

Newest: 2.0.2

Translation Workspace

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Active Rule

Self Extraction Directive File Created In Potentially Suspicious Location

sigma-cli version

Backend

Format

Target Profile

Splunk

Splunk SPL & tstats data model queries

Format Mode

Default

Plain SPL queries

Conversion Output

Self Extraction Directive File Created In Potentially Suspicious Location

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: Self Extraction Directive File Created In Potentially Suspicious Location
id: 760e75d8-c3b5-409b-a9bf-6130b4c4603f
related:
    - id: ab90dab8-c7da-4010-9193-563528cfa347
      type: derived
status: test
description: |
    Detects the creation of Self Extraction Directive files (.sed) in a potentially suspicious location.
    These files are used by the "iexpress.exe" utility in order to create self extracting packages.
    Attackers were seen abusing this utility and creating PE files with embedded ".sed" entries.
references:
    - https://strontic.github.io/xcyclopedia/library/iexpress.exe-D594B2A33EFAFD0EABF09E3FDC05FCEA.html
    - https://en.wikipedia.org/wiki/IExpress
    - https://www.virustotal.com/gui/file/602f4ae507fa8de57ada079adff25a6c2a899bd25cd092d0af7e62cdb619c93c/behavior
author: Joseliyo Sanchez, @Joseliyo_Jstnk
date: 2024-02-05
tags:
    - attack.defense-evasion
    - attack.t1218
logsource:
    category: file_event
    product: windows
detection:
    selection:
        TargetFilename|contains:
            - ':\ProgramData\'
            - ':\Temp\'
            - ':\Windows\System32\Tasks\'
            - ':\Windows\Tasks\'
            - ':\Windows\Temp\'
            - '\AppData\Local\Temp\'
        TargetFilename|endswith: '.sed'
    condition: selection
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_sed_file_creation.yml