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update: image_load_side_load_from_non_system_location - add SystemSettings.dll - #6125

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nasbench merged 4 commits into
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EzLucky:systemsettings_dll_sideloading
Jul 10, 2026
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update: image_load_side_load_from_non_system_location - add SystemSettings.dll#6125
nasbench merged 4 commits into
SigmaHQ:masterfrom
EzLucky:systemsettings_dll_sideloading

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@EzLucky

@EzLucky EzLucky commented Jul 10, 2026

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Summary of the Pull Request

This PR adds the hijackable DLL SystemSettings.dll.
A recent StrikeShark campaign reported by Kaspersky revealed the use of this DLL sideloading by SharkLoader. More details can be found here.
The use of this DLL was also traced back to at least 2023 : https://www.sophos.com/en-us/blog/finding-minhook-in-a-sideloading-attack-and-sweden-too

DLL known to be hijackable : https://hijacklibs.net/entries/microsoft/built-in/systemsettings.html

Changelog

update: image_load_side_load_from_non_system_location - add SystemSettings.dll

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SigmaHQ Rule Creation Conventions

  • If your PR adds new rules, please consider following and applying these conventions

@github-actions github-actions Bot added Rules Review Needed The PR requires review Windows Pull request add/update windows related rules labels Jul 10, 2026
Comment thread rules/windows/image_load/image_load_side_load_from_non_system_location.yml Outdated
@nasbench nasbench added this to the Sigma-August-Release-26 milestone Jul 10, 2026

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LGTM

@nasbench nasbench added Ready to Merge and removed Review Needed The PR requires review labels Jul 10, 2026
Comment thread rules/windows/image_load/image_load_side_load_from_non_system_location.yml Outdated
Comment thread rules/windows/image_load/image_load_side_load_from_non_system_location.yml Outdated
@nasbench
nasbench merged commit 282369f into SigmaHQ:master Jul 10, 2026
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3 participants