gmh5225
2 years ago
parent
ee787ec114
commit
7274ee3002
@ -0,0 +1,101 @@
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AccessModifierOffset: -4
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AlignAfterOpenBracket: AlwaysBreak
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AlignConsecutiveAssignments: false
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AlignConsecutiveDeclarations: false
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AlignEscapedNewlines: DontAlign
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AlignOperands: true
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AllowAllParametersOfDeclarationOnNextLine: false
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AllowShortBlocksOnASingleLine: false
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AllowShortCaseLabelsOnASingleLine: false
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AllowShortFunctionsOnASingleLine: Inline
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AllowShortIfStatementsOnASingleLine: false
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AllowShortLoopsOnASingleLine: false
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AlwaysBreakAfterReturnType: TopLevel
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AlwaysBreakBeforeMultilineStrings: false
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AlwaysBreakTemplateDeclarations: true
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BinPackArguments: false
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BinPackParameters: false
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BraceWrapping:
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AfterClass: true
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AfterControlStatement: true
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AfterEnum: true
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AfterFunction: true
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AfterNamespace: false
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AfterStruct: true
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AfterUnion: true
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AfterExternBlock: false
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BeforeCatch: true
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BeforeElse: true
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BreakBeforeBraces: Custom
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BreakBeforeBinaryOperators: None
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BreakBeforeTernaryOperators: true
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BreakConstructorInitializers: AfterColon
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BreakStringLiterals: false
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ColumnLimit: 120
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CommentPragmas: '^begin_wpp|^end_wpp|^FUNC |^USESUFFIX |^USESUFFIX '
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ConstructorInitializerAllOnOneLineOrOnePerLine: true
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ConstructorInitializerIndentWidth: 4
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ContinuationIndentWidth: 4
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Cpp11BracedListStyle: true
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DerivePointerAlignment: false
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ExperimentalAutoDetectBinPacking: false
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IndentCaseLabels: false
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IndentPPDirectives: AfterHash
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IndentWidth: 4
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KeepEmptyLinesAtTheStartOfBlocks: false
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Language: Cpp
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MacroBlockBegin: '^BEGIN_MODULE$|^BEGIN_TEST_CLASS$|^BEGIN_TEST_METHOD$'
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MacroBlockEnd: '^END_MODULE$|^END_TEST_CLASS$|^END_TEST_METHOD$'
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MaxEmptyLinesToKeep: 1
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NamespaceIndentation: None
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PointerAlignment: Right
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ReflowComments: true
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SortIncludes: false
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SpaceAfterCStyleCast: false
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SpaceBeforeAssignmentOperators: true
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SpaceBeforeCtorInitializerColon: true
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SpaceBeforeCtorInitializerColon: true
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SpaceBeforeParens: ControlStatements
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SpaceBeforeRangeBasedForLoopColon: true
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SpaceInEmptyParentheses: false
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SpacesInAngles: false
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SpacesInCStyleCastParentheses: false
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SpacesInParentheses: false
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SpacesInSquareBrackets: false
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Standard: Cpp11
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StatementMacros: [
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'EXTERN_C',
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'PAGED',
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'PAGEDX',
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'NONPAGED',
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'PNPCODE',
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'INITCODE',
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'_At_',
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'_When_',
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'_Success_',
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'_Check_return_',
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'_Must_inspect_result_',
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'_IRQL_requires_',
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'_IRQL_requires_max_',
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'_IRQL_requires_min_',
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'_IRQL_saves_',
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'_IRQL_restores_',
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'_IRQL_saves_global_',
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'_IRQL_restores_global_',
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'_IRQL_raises_',
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'_IRQL_lowers_',
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'_Acquires_lock_',
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'_Releases_lock_',
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'_Acquires_exclusive_lock_',
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'_Releases_exclusive_lock_',
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'_Acquires_shared_lock_',
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'_Releases_shared_lock_',
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'_Requires_lock_held_',
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'_Use_decl_annotations_',
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'_Guarded_by_',
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'__drv_preferredFunction',
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'__drv_allocatesMem',
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'__drv_freesMem',
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]
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TabWidth: '4'
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UseTab: Never
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@ -1,9 +1,21 @@
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MIT License
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MIT License
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Copyright (c) <year> <copyright holders>
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Copyright (c) 2022 gmh5225
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Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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@ -0,0 +1,22 @@
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<?xml version="1.0" encoding="utf-8"?>
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<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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<ItemGroup>
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<Filter Include="Source Files">
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<UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
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<Extensions>cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
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</Filter>
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<Filter Include="Header Files">
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<UniqueIdentifier>{93995380-89BD-4b04-88EB-625FBE52EBFB}</UniqueIdentifier>
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<Extensions>h;hpp;hxx;hm;inl;inc;xsd</Extensions>
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</Filter>
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<Filter Include="Resource Files">
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<UniqueIdentifier>{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}</UniqueIdentifier>
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<Extensions>rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms</Extensions>
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</Filter>
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</ItemGroup>
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<ItemGroup>
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<ClCompile Include="Source.cpp">
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<Filter>Source Files</Filter>
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</ClCompile>
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</ItemGroup>
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</Project>
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@ -1,3 +1,10 @@
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# LetMeGG
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# LetMeGG
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POC about how to prevent windbg break
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## What's this?
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A POC about how to prevent windbg break
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## Compile
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- Visual Studio 2022
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- llvm-msvc [[link]](https://github.com/NewWorldComingSoon/llvm-msvc-build)
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@ -0,0 +1,106 @@
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#include <fltKernel.h>
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#define dprintf(...) DbgPrintEx(DPFLTR_IHVDRIVER_ID, DPFLTR_ERROR_LEVEL, __VA_ARGS__)
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bool gThreadExiting = false;
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HANDLE gThreadHandle = nullptr;
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PVOID gThreadObject = nullptr;
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void
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Sleep(unsigned long milliseconds)
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{
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LARGE_INTEGER interval;
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interval.QuadPart = -(10000ll * milliseconds);
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KeDelayExecutionThread(KernelMode, FALSE, &interval);
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}
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__declspec(naked) void LetMeGG()
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{
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_asm {
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sub rsp, 0x48
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mov eax, 0x5
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mov byte ptr ss:[rsp + 0x10], 0x67
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mov byte ptr ss:[rsp + 0x11], 0
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push rax
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lea rax, qword ptr ss:[rsp + 0x18]
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mov qword ptr ss:[rsp + 0x40], rax
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mov qword ptr ss:[rsp + 0x30], rax
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pop rax
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mov word ptr ss:[rsp + 0x20], 0x1
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mov word ptr ss:[rsp + 0x30], 0x1
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lea rdx, ss:[rsp + 0x20]
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lea rcx, ss:[rsp + 0x30]
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int 0x2D
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nop
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add rsp, 0x48
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ret
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}
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}
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void
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ThreadFunction(_In_ PVOID StartContext)
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{
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while (1)
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{
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if (gThreadExiting)
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{
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break;
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}
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__try
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{
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LetMeGG();
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}
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__except (EXCEPTION_EXECUTE_HANDLER)
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{
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}
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dprintf("LetMeGG\n");
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Sleep(1);
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}
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}
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void
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ThreadStop()
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{
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gThreadExiting = true;
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if (gThreadObject)
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{
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KeWaitForSingleObject(gThreadObject, Executive, KernelMode, FALSE, nullptr);
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}
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if (gThreadHandle)
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{
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ZwClose(gThreadHandle);
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}
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gThreadObject = nullptr;
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gThreadHandle = nullptr;
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}
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void
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DriverUnLoad(_In_ struct _DRIVER_OBJECT *DriverObject)
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{
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ThreadStop();
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dprintf("free world\n");
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}
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EXTERN_C
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NTSTATUS
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DriverEntry(_In_ PDRIVER_OBJECT DriverObject, _In_ PUNICODE_STRING RegistryPath)
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{
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dprintf("new world\n");
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DriverObject->DriverUnload = DriverUnLoad;
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OBJECT_ATTRIBUTES oa;
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InitializeObjectAttributes(&oa, nullptr, OBJ_KERNEL_HANDLE, nullptr, nullptr);
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auto ns = PsCreateSystemThread(&gThreadHandle, GENERIC_ALL, &oa, nullptr, nullptr, ThreadFunction, nullptr);
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if (ns >= 0)
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{
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ns = ObReferenceObjectByHandle(gThreadHandle, 0, nullptr, KernelMode, &gThreadObject, nullptr);
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if (ns < 0)
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{
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ThreadStop();
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}
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}
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return STATUS_SUCCESS;
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}
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