-
-
[原创]PE导出表地址不同问题
-
发表于: 2023-3-13 14:16
-
先上源码
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 | VOID PERead::ReadExportTable(){ PIMAGE_DATA_DIRECTORY pData = this->pOp->DataDirectory; DWORD x = pData->VirtualAddress; //相对虚拟地址 RVA DWORD foaExportTableAddress = RvaToFoa(pData->VirtualAddress); if (foaExportTableAddress == 0) { cout << "当前程序没有导出表" << endl; cout << endl; return VOID(); } PCHAR directoryExport = ((PCHAR)this->pDos) + foaExportTableAddress; PIMAGE_EXPORT_DIRECTORY pEd = (PIMAGE_EXPORT_DIRECTORY)directoryExport; DWORD foaAddressOfFunctions = RvaToFoa(pEd->AddressOfFunctions); DWORD foaAddressOfNameOrdinals = RvaToFoa(pEd->AddressOfNameOrdinals); DWORD foaAddressOfNames = RvaToFoa(pEd->AddressOfNames); PCHAR foaName = (PCHAR)this->pDos + RvaToFoa(pEd->Name); cout << hex << "导出表Characteristics: \t\t" << pEd->Characteristics << endl; cout << hex << "导出表TimeDateStamp: \t\t" << pEd->TimeDateStamp << endl; cout << hex << "导出表MajorVersion: \t\t" << pEd->MajorVersion << endl; cout << hex << "导出表MinorVersion: \t\t" << pEd->MinorVersion << endl; cout << "导出表名称: \t\t\t" << foaName << endl; cout << hex << "导出表Base: \t\t\t" << pEd->Base << endl; cout << hex << "导出表NumberOfFunctions: \t" << pEd->NumberOfFunctions << endl; cout << hex << "导出表NumberOfNames: \t\t" << pEd->NumberOfNames << endl; cout << hex << "导出表AddressOfFunctions: \t" << pEd->AddressOfFunctions << "\tfoa: " << foaAddressOfFunctions << endl; cout << hex << "导出表AddressOfNames: \t" << pEd->AddressOfNames << "\tfoa: " << foaAddressOfNames << endl; cout << hex << "导出表AddressOfNameOrdinals: \t" << pEd->AddressOfNameOrdinals << "\tfoa: " << foaAddressOfNameOrdinals << endl; cout << endl; PCHAR nameAddress = (PCHAR)this->pDos + foaAddressOfNames; PCHAR tempNameAddress = (PCHAR)this->pDos + foaAddressOfNames; PCHAR tempFoaAddressOfNameOrdinals = (PCHAR)this->pDos + foaAddressOfNameOrdinals; PDWORD pFoaFunction = (PDWORD)((PCHAR)this->pDos + foaAddressOfFunctions); PWORD pFoaOrdinals = (PWORD)((PCHAR)this->pDos + foaAddressOfNameOrdinals); PWORD pTempFoaOrdinals = pFoaOrdinals; PDWORD pFoaNames = (PDWORD)((PCHAR)this->pDos + foaAddressOfNames); //根据导出函数地址 来进行遍历并打印出所有的导出函数信息 for (size_t i = 0; i < pEd->NumberOfFunctions; i++) { pTempFoaOrdinals = pFoaOrdinals; //打印函数地址 并获取到函数序号 从序号表中找到对应的序号 再找到对应函数的名称 没有名称的则写空 if (*pFoaFunction == 0) { pFoaFunction++; continue; } //1.获取到文件中当前函数所在的地址 cout << dec << "第" << i + 1 << "个RVA函数地址为:"; cout << hex << *pFoaFunction; cout << "\tFOA函数地址为:" << RvaToFoa(*pFoaFunction); //2.找到序号 int ordinal = 0; for (size_t j = 0; j < pEd->NumberOfNames; j++) { if (*pTempFoaOrdinals == i) { ordinal = j; break; } if (j == pEd->NumberOfNames - 1 && ordinal == 0 && j != 0) { ordinal = -1; break; } pTempFoaOrdinals++; } //3.找到名称 if (ordinal == -1) { //当前函数不是以函数名称进行导出的 cout << dec << "\t\t导出序号为:" << i + pEd->Base << "\t\t导出名称为:N/A" << endl; } else { PDWORD name = pFoaNames + ordinal; cout << dec << "\t\t导出序号为:" << i + pEd->Base << "\t\t导出名称为:" << (PCHAR)(((DWORD)this->pDos) + RvaToFoa(*name)) << endl; } pFoaFunction++; } return VOID();} |
原本以为这样打印出来没有问题,但是通过Dependencies和vs2019工具dumpbin.exe 打印的结果都和我的不同不知道我这样解析是有什么问题吗?有那个大佬能指点一二吗
以下是我的部分打印结果
这里是Dependencies的
这里是dumpbin.exe的
我的打印结果从导出序号为2的函数SysAllocString来看 地址是不一样的 但是我使用lordPe查看的时候 就和我的结果是一样的,难道这个是因为我使用的两个工具都是加载到内存中的原因吗?求大佬解答一下疑惑.谢谢
[招生]科锐逆向工程师培训(2024年11月15日实地，远程教学同时开班, 第51期)
