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What is the purpose of this PR / why it is needed?

Detects attempts to bypass the standard NTDLL bootstrap process by loading a malicious DLL early through hijacking. The malicious DLL, containing attacker-controlled code, is loaded in place of the legitimate kernel32 DLL.

What type of change does this PR introduce?


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/kind feature (non-breaking change which adds functionality)

/kind bug-fix (non-breaking change which fixes an issue)

/kind refactor (non-breaking change that restructures the code, while not changing the original functionality)

/kind breaking (fix or feature that would cause existing functionality to not work as expected

/kind cleanup

/kind improvement

/kind design

/kind documentation

/kind other (change that doesn't pertain to any of the above categories)

Any specific area of the project related to this PR?


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/area instrumentation

/area telemetry

/area rule-engine

/area filters

/area yara

/area event

/area captures

/area alertsenders

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Special notes for the reviewer


Does this PR introduce a user-facing change?


@rabbitstack rabbitstack added the rules Anything related to detection rules label Mar 26, 2025
Detects attempts to bypass the standard NTDLL bootstrap process by loading a malicious DLL early through hijacking. The malicious DLL, containing attacker-controlled code, is loaded in place of the legitimate kernel32 DLL.
@rabbitstack rabbitstack force-pushed the dll-loaded-via-ldrpkernel32-overwrite branch from caec540 to a6fedbe Compare April 11, 2025 15:52
@rabbitstack rabbitstack merged commit 34c72bb into master Apr 12, 2025
11 of 13 checks passed
@rabbitstack rabbitstack deleted the dll-loaded-via-ldrpkernel32-overwrite branch April 12, 2025 11:26
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2 participants