Código
;Busca offsets cli - by pablomi .386 .model flat, stdcall option casemap :none include \masm32\include\masm32rt.inc includelib \masm32\lib\kernel32.lib includelib \masm32\lib\user32.lib includelib \masm32\lib\masm32.lib .data error db "No se encontro la funcion.",0 .data? libreriaTMP dd ? libreria db 256 dup(?) funcionTMP dd ? funcion db 256 dup(?) argc dd ? .code codigo: invoke GetCommandLineW invoke CommandLineToArgvW, eax, addr argc or eax, eax cmp dword ptr argc, 3 jb @f mov ebx, dword ptr[eax+4] mov dword ptr libreriaTMP, ebx mov ebx, dword ptr[eax+8] mov dword ptr funcionTMP, ebx invoke WideCharToMultiByte,CP_ACP,0,dword ptr libreriaTMP,-1,addr libreria,256d,0,0 invoke WideCharToMultiByte,CP_ACP,0,dword ptr funcionTMP,-1,addr funcion,256d,0,0 invoke LoadLibrary, addr libreria invoke GetProcAddress, eax, addr funcion or eax, eax je Error invoke StdOut, uhex$(eax) invoke ExitProcess, 0 Error: invoke StdOut, addr error @@: invoke ExitProcess, 0 end codigo
Citar
C:\Users\Pablo\Desktop>bOffsets msvcrt.dll system
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C:\Users\Pablo\Desktop>bOffsets msvcrt.dll printf
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C:\Users\Pablo\Desktop>
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C:\Users\Pablo\Desktop>bOffsets msvcrt.dll printf
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C:\Users\Pablo\Desktop>
Saludos!