Exemple #1
0
void get_table_addr(CPESection &section, std::vector<long> & addr_table_entry,std::vector<long *> & addr_table_entry_point)
{
    for (std::vector<long>::iterator iter = addr_table_entry.begin();
         iter != addr_table_entry.end();iter++)
    {
        if (section.CheckAddressValidity(*iter))
        {
            long *addr = (long*)section.VaToPtr(*iter);
            //printf("table addr:%08x\r\n",*addr);
            if (addr)
            while (section.CheckAddressValidity(*addr))
            {
#ifdef DEBUG
                printf ("table addr:%08x\n",*addr);
#endif
                addr_table_entry_point.push_back(addr);
                addr++;

            }
            //addr++;
        }
    }
}
Exemple #2
0
void buildvmtest(BuildCodeInfo & build_info)
{
  VirtualMachineManage vm;
  CodeBufferInfo info;
 
  CPEFile file;

  char * build_exec_name = build_info.get_filename();
  bool b = file.LoadPEFile(build_exec_name);
  if (!b)
  {
    printf("file is not find\r\n");
    return;
  }
  if (!file.IsPEFile())
  {
    printf("executable file type error\n");
    return;
  }
  CPESection section;
  CPEReloc reloc;
  section = file;
  reloc = file;
  reloc.DeleteReloc();
  reloc.GetBaseReloc();
  for (int i = 0;i<section.GetSectionCount();i++)
  {
      //section.GetRelocations(i);
  }
  //printf ("一共有%d个区段\r\n");
  /*for (int i = 0;i < section.GetSectionCount();i++)
  {

      DWORD size;
      BYTE * data = section.GetSectionData(i,&size);
      printf("第%d个区段,大小%d\n",i,size);

      for (int x = 0;x<size;x++)
      {
          printf("%x ",data[x]);
          if ((x+1)%16==0)
          {
              printf("\n");
          }
      }
   }*/
  get_wprotect_sdk_address(section,build_info,"WProtect Begin","WProtect End");
  unsigned long section_size;

  VMAddressTable table(   section.GetNewSectionBase(),0x512,false);

  bool t_sign = table.get_sign();
  table.set_sign(true);
  long virtualmachine_address = table.assign_address(0x1024);
  table.set_sign(t_sign);
  VirtualMachine *pvm = vm.add_virtual_machine(virtualmachine_address,false);

  table.copy(virtualmachine_address,pvm->vm_info.buf,pvm->vm_info.size);     


  for (BuildCodeInfo::iterator iter = build_info.begin(); iter != build_info.end(); iter++)
  {
    long build_exec_addr = iter->build_exec_addr;
    long build_exec_size = iter->build_exec_size;
    info.buf = file.VaToPtr(build_exec_addr);
    info.addr = build_exec_addr;   
    info.size = 0x40194f - 0x4014a0;
    info.size = build_exec_size;
    if (info.size < 5)
    {
      printf("Protect Size less than 5 Byte\n");
      return;
    }
//#define VM_DEBUG_BUILD
#ifdef VM_DEBUG_BUILD
    Analysis analysis;
    std::vector<CodePiece> code_list;
    analysis.disasm(&info,code_list);
    bool next = true;
    for (std::vector<CodePiece>::iterator iter = code_list.begin();
         iter != code_list.end();iter++)
    {
        bool begin = true;
        //info.addr = 0;
        //info.buf = 0;
        if (iter->get_is_jcc())
         info.size = iter->get_piece().back().insn_offset - iter->get_piece().front().insn_offset;
        else
         info.size = iter->get_piece().back().pc - iter->get_piece().front().insn_offset;
        info.addr = iter->get_piece().front().insn_offset;
        info.buf = section.VaToPtr(info.addr);

        if (info.size < 5 )
        {
            printf("编译的地址不能小于5Byte,这段指令编译失败\n");
            //return;
            continue;
        }
        void * ptr_old_code = info.buf;
        size_t old_code_size = info.size;
        long old_addr = info.addr;
        BuildVMByteCode build(&vm,&info,&table);
        memset(ptr_old_code,0x90,old_code_size);
        add_jmp_addr(file,old_addr,info.addr);
    }
#else
    void * ptr_old_code = info.buf;
    size_t old_code_size = info.size;

    Analysis analysis;
    std::vector<long> addr_table;
    std::vector<long*> addr_entry_point;
    analysis.analysis_address_table(&info,addr_table,section.GetSectionMinAddress(),section.GetSectionMaxAddress());
    get_table_addr(section,addr_table,addr_entry_point);

    BuildVMByteCode build(&vm,&info,&table,addr_entry_point);
    memset(ptr_old_code,0,old_code_size);
    add_jmp_addr(file,build_exec_addr,info.addr);    
#endif
  }


  FILE *pfile;

  //  VirtualMachine *pvm = vm.rand_virtual_machine();


  //t_sign = table.get_sign();
  //table.set_sign(true);
  //  long virtualmachine_address = table.assign_address(pvm->vm_info.size);
  //table.set_sign(t_sign);

  //  table.copy(virtualmachine_address,pvm->vm_info.buf,pvm->vm_info.size);

  section_size = (unsigned long)( table.buffer_size);
  section.AddSection(".WProtect",section_size,0xE0000020);
  section.WriteSectionData(file.GetSectionCount()-1,0,
      (unsigned char*)table.buffer,(unsigned long *)&table.buffer_size);
  char new_file_name[256];
  memset(new_file_name,0,256);
  memcpy(new_file_name,build_exec_name,strlen(build_exec_name)-3); 
  strcat(new_file_name,"wp.exe");
  file.SavePEFile(new_file_name);
  printf("Out File:%s\n",new_file_name);
  //pfile = fopen( "virtualmachine","wb" );
  //fwrite( pvm->vm_info.buf,1,pvm->vm_info.size,pfile );
  //fclose( file );

  //delete [  ] buf;
}