Phoenix Studio
Convert indexed Sigma rules into analyst-ready detections.
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Indexed Rules
3,707
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Backends
17
Live from sigconverter.io
CLI Versions
10
Newest: 2.0.2
Translation Workspace
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Active Rule
Potentially Suspicious Self Extraction Directive File Created
Target Profile
Splunk
Splunk SPL & tstats data model queries
Format Mode
Default
Plain SPL queries
Conversion Output
Potentially Suspicious Self Extraction Directive File Created
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: Potentially Suspicious Self Extraction Directive File Created
id: ab90dab8-c7da-4010-9193-563528cfa347
related:
- id: 760e75d8-c3b5-409b-a9bf-6130b4c4603f
type: derived
status: test
description: |
Detects the creation of a binary file with the ".sed" extension. The ".sed" extension stand for Self Extraction Directive files.
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.
Usually ".sed" files are simple ini files and not PE binaries.
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:
product: windows
category: file_executable_detected
detection:
selection:
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_executable_detected/file_executable_detected_win_susp_embeded_sed_file.yml