mirror of
https://github.com/wavestone-cdt/EDRSandblast.git
synced 2026-06-08 16:37:12 +00:00
Maxime Meignan
76 lines
5.4 KiB
C
76 lines
5.4 KiB
C
/*
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--- ntoskrnl Notify Routines' offsets search functions using patterns.
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--- Ultimately not used because too unreliable and too prone to BSoD.
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*/
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#include <Windows.h>
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#include <Tchar.h>
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#include "KernelMemoryPrimitives.h"
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#include "KernelUtils.h"
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#include "PrintFunctions.h"
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DWORD64 PatternSearchStartingFromAddress(DWORD64 startAddress, DWORD bytesToScan, DWORD64 pattern, DWORD64 mask) {
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for (DWORD i = 0; i < bytesToScan; i++) {
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DWORD64 instructionAddress = startAddress + i;
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DWORD64 dword64Instruction = ReadMemoryDWORD64(instructionAddress);
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DWORD64 dword64InstructionFixed = dword64Instruction & mask;
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// _tprintf_or_not(TEXT("i = %i, pattern = 0x%I64x, instructionAddress = 0x%I64x, wordInstruction = 0x%I64x, wordInstructionFixed = 0x%I64x\n"), i, pattern, instructionAddress, dword64Instruction, dword64InstructionFixed);
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if (dword64InstructionFixed == pattern) {
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_tprintf_or_not(TEXT("[+] Found pattern = 0x%I64x at offset i = %i [instructionAddress = 0x%I64x, wordInstruction = 0x%I64x, wordInstructionFixed = 0x%I64x]\n"), pattern, i, instructionAddress, dword64Instruction, dword64InstructionFixed);
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return instructionAddress;
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}
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}
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return 0x0;
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}
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DWORD64 ExtractRelativeAddress(DWORD64 instructionStartAddress, DWORD64 instructionRelativeAddressOffset, DWORD64 nextInstructionOffset) {
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DWORD64 procedureRelativeAddress = (signed int)ReadMemoryDWORD64(instructionStartAddress + instructionRelativeAddressOffset);
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DWORD64 nextInstructionAddress = instructionStartAddress + nextInstructionOffset;
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return nextInstructionAddress + procedureRelativeAddress;
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}
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DWORD64 GetPspCreateProcessNotifyRoutineAddressUsingPattern(void) {
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_putts_or_not(TEXT("[*] Searching for PspCreateProcessNotifyRoutine address using pattern"));
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// Extracting PspSetCreateProcessNotifyRoutine address in PsSetCreateProcessNotifyRoutine using the pattern "E8" (CALL) to match "[e80e010000] call nt!PspSetCreateProcessNotifyRoutine".
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DWORD64 PsSetCreateProcessNotifyRoutineAddress = GetKernelFunctionAddress("PsSetCreateProcessNotifyRoutine");
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DWORD64 CallPspSetCreateProcessNotifyRoutineAddress = PatternSearchStartingFromAddress(PsSetCreateProcessNotifyRoutineAddress, 64, 0x00000000000000E8, 0x00000000000000FF);
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DWORD64 PspSetCreateProcessNotifyRoutineAddress = ExtractRelativeAddress(CallPspSetCreateProcessNotifyRoutineAddress, 1, 5);
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// Extracting PspCreateProcessNotifyRoutine address in PspSetCreateProcessNotifyRoutine using the pattern "4C 8D" (LEA 4C) to match "[4c8d2d371ddaff] lea r13,[nt!PspCreateProcessNotifyRoutine".
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DWORD64 LeaPspCreateProcessNotifyRoutineAddress = PatternSearchStartingFromAddress(PspSetCreateProcessNotifyRoutineAddress, 256, 0x0000000000008D48, 0x000000000000FFF8);
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DWORD64 PspCreateProcessNotifyRoutineAddress = ExtractRelativeAddress(LeaPspCreateProcessNotifyRoutineAddress, 3, 7);
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_tprintf_or_not(TEXT("[+] Pattern search found PspCreateProcessNotifyRoutine address: 0x%I64x\n"), PspCreateProcessNotifyRoutineAddress);
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return PspCreateProcessNotifyRoutineAddress;
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}
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DWORD64 GetPspCreateThreadNotifyRoutineAddressUsingPattern(void) {
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_putts_or_not(TEXT("[*] Searching for PspCreateThreadNotifyRoutine address using pattern"));
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// Extracting nt!PspSetCreateThreadNotifyRoutine address in nt!PsSetCreateThreadNotifyRoutine using the pattern "E8" (CALL) to match "[e865000000] call nt!PspSetCreateThreadNotifyRoutine".
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DWORD64 PsSetCreateThreadNotifyRoutineAddress = GetKernelFunctionAddress("PsSetCreateThreadNotifyRoutine");
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DWORD64 CallPspSetCreateThreadNotifyRoutineAddress = PatternSearchStartingFromAddress(PsSetCreateThreadNotifyRoutineAddress, 64, 0x00000000000000E8, 0x00000000000000FF);
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DWORD64 PspSetCreateThreadNotifyRoutineAddress = ExtractRelativeAddress(CallPspSetCreateThreadNotifyRoutineAddress, 1, 5);
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// Extracting nt!PspCreateThreadNotifyRoutine address in nt!PspSetCreateThreadNotifyRoutine using the pattern "4C 8D" (LEA 4C) to match "[488d0d431cdaff] lea rcx,[nt!PspCreateThreadNotifyRoutine]".
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DWORD64 LeaPspCreateThreadNotifyRoutineAddress = PatternSearchStartingFromAddress(PspSetCreateThreadNotifyRoutineAddress, 256, 0x0000000000008D48, 0x000000000000FFF8);
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DWORD64 PspCreateThreadNotifyRoutineAddress = ExtractRelativeAddress(LeaPspCreateThreadNotifyRoutineAddress, 3, 7);
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_tprintf_or_not(TEXT("[+] Pattern search found PspCreateThreadNotifyRoutine address: 0x%I64x\n"), PspCreateThreadNotifyRoutineAddress);
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return PspCreateThreadNotifyRoutineAddress;
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}
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DWORD64 GetPspLoadImageNotifyRoutineAddressUsingPattern(void) {
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_putts_or_not(TEXT("[*] Searching for PspLoadImageNotifyRoutine address using pattern"));
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// Extracting nt!PspLoadImageNotifyRoutine address directly from nt!PsSetLoadImageNotifyRoutineEx using the pattern "4C 8D" (LEA 4C) to match "[488d0d981ddaff] lea rcx,[nt!PspLoadImageNotifyRoutine]".
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DWORD64 PsSetLoadImageNotifyRoutineExAddress = GetKernelFunctionAddress("PsSetLoadImageNotifyRoutineEx");
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DWORD64 LeaPspLoadImageNotifyRoutineAddress = PatternSearchStartingFromAddress(PsSetLoadImageNotifyRoutineExAddress, 128, 0x0000000000008D48, 0x000000000000FFF8);
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DWORD64 PspLoadImageNotifyRoutineAddress = ExtractRelativeAddress(LeaPspLoadImageNotifyRoutineAddress, 3, 7);;
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_tprintf_or_not(TEXT("[+] Pattern search found PspLoadImageNotifyRoutine address: 0x%I64x\n"), PspLoadImageNotifyRoutineAddress);
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return PspLoadImageNotifyRoutineAddress;
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} |