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???? 哈哈，想不到有人居然把這種代碼也搞出來了。
??? Windows的PE加載器在啟動程序的時候，會將磁盤上的文件加載到內存，然后做很多操作，如函數導入表重定位，變量預處理之類的。這位仁兄等于是自己寫了一個PE加載器。直接將內存中的程序啟動。記得以前的“紅色代碼”病毒也有相同的特性。
??? 直接啟動內存中的程序相當于加了一個殼，可以把程序加密保存，運行時解密到內存，然后啟動，不過對于增加破解難度還要稍微復雜點。否則人家把內存中的進程DUMP出來然后修復導入表就被拖出來了。

代碼自己改吧
#include?"stdafx.h"??
??
??
typedef?IMAGE_SECTION_HEADER?(*PIMAGE_SECTION_HEADERS)[1];???
??
//?計算對齊后的大小???
unsigned?long?GetAlignedSize(unsigned?long?Origin,?unsigned?long?Alignment)???
{???
????return?(Origin?+?Alignment?-?1)?/?Alignment?*?Alignment;???
}???
??
//?計算加載pe并對齊需要占用多少內存???
//?未直接使用OptionalHeader.SizeOfImage作為結果是因為據說有的編譯器生成的exe這個值會填0???
unsigned?long?CalcTotalImageSize(PIMAGE_DOS_HEADER?MzH???
?????????????????????????????????,?unsigned?long?FileLen???
?????????????????????????????????,?PIMAGE_NT_HEADERS?peH???
?????????????????????????????????,?PIMAGE_SECTION_HEADERS?peSecH)???
{???
????unsigned?long?res;???
????//?計算pe頭的大小???
????res?=?GetAlignedSize(?peH->OptionalHeader.SizeOfHeaders???
????????,?peH->OptionalHeader.SectionAlignment???
????????);???
??
????//?計算所有節的大小???
????for(?int?i?=?0;?i?<?peH->FileHeader.NumberOfSections;?++i)???
????{???
????????//?超出文件范圍???
????????if(peSecH[i]->PointerToRawData?+?peSecH[i]->SizeOfRawData?>?FileLen)???
????????????return?0;???
????????else?if(peSecH[i]->VirtualAddress)//計算對齊后某節的大小???
????????{???
????????????if(peSecH[i]->Misc.VirtualSize)???
????????????{???
????????????????res?=?GetAlignedSize(?peSecH[i]->VirtualAddress?+?peSecH[i]->Misc.VirtualSize???
????????????????????,?peH->OptionalHeader.SectionAlignment???
????????????????????);???
????????????}???
????????????else??
????????????{???
????????????????res?=?GetAlignedSize(?peSecH[i]->VirtualAddress?+?peSecH[i]->SizeOfRawData???
????????????????????,?peH->OptionalHeader.SectionAlignment???
????????????????????);???
????????????}???
????????}???
????????else?if(?peSecH[i]->Misc.VirtualSize?<?peSecH[i]->SizeOfRawData?)???
????????{???
????????????res?+=?GetAlignedSize(?peSecH[i]->SizeOfRawData???
????????????????,?peH->OptionalHeader.SectionAlignment???
????????????????);???
????????}???
????????else??
????????{???
????????????res?+=?GetAlignedSize(?peSecH[i]->Misc.VirtualSize???
????????????????,?peH->OptionalHeader.SectionAlignment???
????????????????);???
????????}//?if_else???
????}//?for???
???????
????return?res;???
}???
??
??
??
??
//?加載pe到內存并對齊所有節???
BOOL?AlignPEToMem(?void?*Buf???
??????????????????,?long?Len???
??????????????????,?PIMAGE_NT_HEADERS?&peH???
??????????????????,?PIMAGE_SECTION_HEADERS?&peSecH???
??????????????????,?void?*&Mem???
??????????????????,?unsigned?long?&ImageSize)???
{???
????PIMAGE_DOS_HEADER?SrcMz;//?DOS頭???
????PIMAGE_NT_HEADERS?SrcPeH;//?PE頭???
????PIMAGE_SECTION_HEADERS?SrcPeSecH;//?節表???
???????
????SrcMz?=?(PIMAGE_DOS_HEADER)Buf;???
??
????if(?Len?<?sizeof(IMAGE_DOS_HEADER)?)????
????????return?FALSE;???
???????
????if(?SrcMz->e_magic?!=?IMAGE_DOS_SIGNATURE?)???
????????return?FALSE;???
???????
????if(?Len?<?SrcMz->e_lfanew?+?(long)sizeof(IMAGE_NT_HEADERS)?)???
????????return?FALSE;???
??
????SrcPeH?=?(PIMAGE_NT_HEADERS)((int)SrcMz?+?SrcMz->e_lfanew);???
????if(?SrcPeH->Signature?!=?IMAGE_NT_SIGNATURE?)???
????????return?FALSE;???
??
????if(?(SrcPeH->FileHeader.Characteristics?&?IMAGE_FILE_DLL)?||???
????????(SrcPeH->FileHeader.Characteristics?&?IMAGE_FILE_EXECUTABLE_IMAGE?==?0)?||???
????????(SrcPeH->FileHeader.SizeOfOptionalHeader?!=?sizeof(IMAGE_OPTIONAL_HEADER))?)???
????{???
????????return?FALSE;???
????}???
??
??
????SrcPeSecH?=?(PIMAGE_SECTION_HEADERS)((int)SrcPeH?+?sizeof(IMAGE_NT_HEADERS));???
????ImageSize?=?CalcTotalImageSize(?SrcMz,?Len,?SrcPeH,?SrcPeSecH);???
??
????if(?ImageSize?==?0?)???
????????return?FALSE;???
???????
????Mem?=?VirtualAlloc(?NULL,?ImageSize,?MEM_COMMIT,?PAGE_EXECUTE_READWRITE);?//?分配內存???
????if(?Mem?!=?NULL?)???
????{???
????????//?計算需要復制的PE頭字節數???
????????unsigned?long?l?=?SrcPeH->OptionalHeader.SizeOfHeaders;???
????????for(?int?i?=?0;?i?<?SrcPeH->FileHeader.NumberOfSections;?++i)???
????????{???
????????????if(?(SrcPeSecH[i]->PointerToRawData)?&&???
????????????????(SrcPeSecH[i]->PointerToRawData?<?l)?)???
????????????{???
????????????????l?=?SrcPeSecH[i]->PointerToRawData;???
????????????}???
????????}???
????????memmove(?Mem,?SrcMz,?l);???
????????peH?=?(PIMAGE_NT_HEADERS)((int)Mem?+?((PIMAGE_DOS_HEADER)Mem)->e_lfanew);???
????????peSecH?=?(PIMAGE_SECTION_HEADERS)((int)peH?+?sizeof(IMAGE_NT_HEADERS));???
??
????????void?*Pt?=?(void?*)((unsigned?long)Mem????
????????????+?GetAlignedSize(?peH->OptionalHeader.SizeOfHeaders???
????????????,?peH->OptionalHeader.SectionAlignment)???
????????????);???
??
????????for(?i?=?0;?i?<?peH->FileHeader.NumberOfSections;?++i)???
????????{???
????????????//?定位該節在內存中的位置???
????????????if(peSecH[i]->VirtualAddress)???
????????????????Pt?=?(void?*)((unsigned?long)Mem?+?peSecH[i]->VirtualAddress);???
??
????????????if(peSecH[i]->SizeOfRawData)???
????????????{???
????????????????//?復制數據到內存???
????????????????memmove(Pt,?(const?void?*)((unsigned?long)(SrcMz)?+?peSecH[i]->PointerToRawData),?peSecH[i]->SizeOfRawData);???
????????????????if(peSecH[i]->Misc.VirtualSize?<?peSecH[i]->SizeOfRawData)???
????????????????????Pt?=?(void?*)((unsigned?long)Pt?+?GetAlignedSize(peSecH[i]->SizeOfRawData,?peH->OptionalHeader.SectionAlignment));???
????????????????else?//?pt?定位到下一節開始位置???
????????????????????Pt?=?(void?*)((unsigned?long)Pt?+?GetAlignedSize(peSecH[i]->Misc.VirtualSize,?peH->OptionalHeader.SectionAlignment));???
????????????}???
????????????else??
????????????{???
????????????????Pt?=?(void?*)((unsigned?long)Pt?+?GetAlignedSize(peSecH[i]->Misc.VirtualSize,?peH->OptionalHeader.SectionAlignment));???
????????????}???
????????}???
????}???
????return?TRUE;???
}???
??
??
??
typedef?void?*(__stdcall?*pfVirtualAllocEx)(unsigned?long,?void?*,?unsigned?long,?unsigned?long,?unsigned?long);???
pfVirtualAllocEx?MyVirtualAllocEx?=?NULL;???
??
BOOL?IsNT()???
{???
????return?MyVirtualAllocEx!=NULL;???
}???
??
//?生成外殼程序命令行???
char?*PrepareShellExe(char?*CmdParam,?unsigned?long?BaseAddr,?unsigned?long?ImageSize)???
{???
????if(IsNT())???
????{???
????????char?*Buf?=?new?char[256];???
????????memset(Buf,?0,?256);???
????????GetModuleFileName(0,?Buf,?256);???
????????strcat(Buf,?CmdParam);???
????????return?Buf;?//?請記得釋放內存;-)???
????}???
????else??
????{???
????????//?Win98下的處理請參考原文;-)???
????????//?http://community.csdn.net/Expert/topic/4416/4416252.xml?temp=8.709133E-03???
????????return?NULL;???
????}???
}???
??
//?是否包含可重定向列表???
BOOL?HasRelocationTable(PIMAGE_NT_HEADERS?peH)???
{???
????return?(peH->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_BASERELOC].VirtualAddress)???
????????&&?(peH->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_BASERELOC].Size);???
}???
??
??
??
??
#pragma?pack(push,?1)???
typedef?struct{???
????unsigned?long?VirtualAddress;???
????unsigned?long?SizeOfBlock;???
}?*PImageBaseRelocation;???
#pragma?pack(pop)???
??
//?重定向PE用到的地址???
void?DoRelocation(PIMAGE_NT_HEADERS?peH,?void?*OldBase,?void?*NewBase)???
{???
????unsigned?long?Delta?=?(unsigned?long)NewBase?-?peH->OptionalHeader.ImageBase;???
????PImageBaseRelocation?p?=?(PImageBaseRelocation)((unsigned?long)OldBase????
????????+?peH->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_BASERELOC].VirtualAddress);???
????while(p->VirtualAddress?+?p->SizeOfBlock)???
????{???
????????unsigned?short?*pw?=?(unsigned?short?*)((int)p?+?sizeof(*p));???
????????for(unsigned?int?i=1;?i?<=?(p->SizeOfBlock?-?sizeof(*p))?/?2;?++i)???
????????{???
????????????if((*pw)?&?0xF000?==?0x3000){???
????????????????unsigned?long?*t?=?(unsigned?long?*)((unsigned?long)(OldBase)?+?p->VirtualAddress?+?((*pw)?&?0x0FFF));???
????????????????*t?+=?Delta;???
????????????}???
????????????++pw;???
????????}???
????????p?=?(PImageBaseRelocation)pw;???
????}???
}???
??
//?卸載原外殼占用內存???
BOOL?UnloadShell(HANDLE?ProcHnd,?unsigned?long?BaseAddr)???
{???
????typedef?unsigned?long?(__stdcall?*pfZwUnmapViewOfSection)(unsigned?long,?unsigned?long);???
????pfZwUnmapViewOfSection?ZwUnmapViewOfSection?=?NULL;???
????BOOL?res?=?FALSE;???
????HMODULE?m?=?LoadLibrary("ntdll.dll");???
????if(m){???
????????ZwUnmapViewOfSection?=?(pfZwUnmapViewOfSection)GetProcAddress(m,?"ZwUnmapViewOfSection");???
????????if(ZwUnmapViewOfSection)???
????????????res?=?(ZwUnmapViewOfSection((unsigned?long)ProcHnd,?BaseAddr)?==?0);???
????????FreeLibrary(m);???
????}???
????return?res;???
}???
??
//?創建外殼進程并獲取其基址、大小和當前運行狀態???
BOOL?CreateChild(char?*Cmd,?CONTEXT?&Ctx,?HANDLE?&ProcHnd,?HANDLE?&ThrdHnd,????
?????????????????unsigned?long?&ProcId,?unsigned?long?&BaseAddr,?unsigned?long?&ImageSize)???
{???
????STARTUPINFOA?si;???
????PROCESS_INFORMATION?pi;???
????unsigned?long?old;???
????MEMORY_BASIC_INFORMATION?MemInfo;???
????memset(&si,?0,?sizeof(si));???
????memset(&pi,?0,?sizeof(pi));???
????si.cb?=?sizeof(si);???
???????
????BOOL?res?=?CreateProcess(NULL,?Cmd,?NULL,?NULL,?FALSE,?CREATE_SUSPENDED,?NULL,?NULL,?&si,?&pi);?//?以掛起方式運行進程;???
????if(res){???
????????ProcHnd?=?pi.hProcess;???
????????ThrdHnd?=?pi.hThread;???
????????ProcId?=?pi.dwProcessId;???
????????//?獲取外殼進程運行狀態，[ctx.Ebx+8]內存處存的是外殼進程的加載基址，ctx.Eax存放有外殼進程的入口地址???
????????Ctx.ContextFlags?=?CONTEXT_FULL;???
????????GetThreadContext(ThrdHnd,?&Ctx);???
????????ReadProcessMemory(ProcHnd,?(void?*)(Ctx.Ebx+8),?&BaseAddr,?sizeof(unsigned?long),?&old);?//?讀取加載基址???
????????void?*p?=?(void?*)BaseAddr;???
????????//?計算外殼進程占有的內存???
????????while(VirtualQueryEx(ProcHnd,?p,?&MemInfo,?sizeof(MemInfo)))???
????????{???
????????????if(MemInfo.State?=?MEM_FREE)?break;???
????????????p?=?(void?*)((unsigned?long)p?+?MemInfo.RegionSize);???
????????}???
????????ImageSize?=?(unsigned?long)p?-?(unsigned?long)BaseAddr;???
????}???
????return?res;???
}???
??
//?創建外殼進程并用目標進程替換它然后執行???
HANDLE?AttachPE(char?*CmdParam,?PIMAGE_NT_HEADERS?peH,?PIMAGE_SECTION_HEADERS?peSecH,????
????????????????void?*Ptr,?unsigned?long?ImageSize,?unsigned?long?&ProcId)???
{???
????HANDLE?res?=?INVALID_HANDLE_VALUE;???
????CONTEXT?Ctx;???
????HANDLE?Thrd;???
????unsigned?long?Addr,?Size;???
????char?*s?=?PrepareShellExe(CmdParam,?peH->OptionalHeader.ImageBase,?ImageSize);???
????if(s==NULL)?return?res;???
????if(CreateChild(s,?Ctx,?res,?Thrd,?ProcId,?Addr,?Size)){???
????????void?*p?=?NULL;???
????????unsigned?long?old;???
????????if((peH->OptionalHeader.ImageBase?==?Addr)?&&?(Size?>=?ImageSize)){//?外殼進程可以容納目標進程并且加載地址一致???
????????????p?=?(void?*)Addr;???
????????????VirtualProtectEx(res,?p,?Size,?PAGE_EXECUTE_READWRITE,?&old);???
????????}???
????????else?if(IsNT()){???
????????????if(UnloadShell(res,?Addr)){//?卸載外殼進程占有內存???
????????????????p?=?MyVirtualAllocEx((unsigned?long)res,?(void?*)peH->OptionalHeader.ImageBase,?ImageSize,?MEM_RESERVE?|?MEM_COMMIT,?PAGE_EXECUTE_READWRITE);???
????????????}???
????????????if((p?==?NULL)?&&?HasRelocationTable(peH)){//?分配內存失敗并且目標進程支持重定向???
????????????????p?=?MyVirtualAllocEx((unsigned?long)res,?NULL,?ImageSize,?MEM_RESERVE?|?MEM_COMMIT,?PAGE_EXECUTE_READWRITE);???
????????????????if(p)?DoRelocation(peH,?Ptr,?p);?//?重定向???
????????????}???
????????}???
????????if(p){???
????????????WriteProcessMemory(res,?(void?*)(Ctx.Ebx+8),?&p,?sizeof(DWORD),?&old);?//?重置目標進程運行環境中的基址???
????????????peH->OptionalHeader.ImageBase?=?(unsigned?long)p;???
????????????if(WriteProcessMemory(res,?p,?Ptr,?ImageSize,?&old)){//?復制PE數據到目標進程???
????????????????Ctx.ContextFlags?=?CONTEXT_FULL;???
????????????????if((unsigned?long)p?==?Addr)???
????????????????????Ctx.Eax?=?peH->OptionalHeader.ImageBase?+?peH->OptionalHeader.AddressOfEntryPoint;?//?重置運行環境中的入口地址???
????????????????else??
????????????????????Ctx.Eax?=?(unsigned?long)p?+?peH->OptionalHeader.AddressOfEntryPoint;???
????????????????SetThreadContext(Thrd,?&Ctx);//?更新運行環境???
????????????????ResumeThread(Thrd);//?執行???
????????????????CloseHandle(Thrd);???
????????????}???
????????????else{//?加載失敗,殺掉外殼進程???
????????????????TerminateProcess(res,?0);???
????????????????CloseHandle(Thrd);???
????????????????CloseHandle(res);???
????????????????res?=?INVALID_HANDLE_VALUE;???
????????????}???
????????}???
????????else{//?加載失敗,殺掉外殼進程???
????????????TerminateProcess(res,?0);???
????????????CloseHandle(Thrd);???
????????????CloseHandle(res);???
????????????res?=?INVALID_HANDLE_VALUE;???
????????}???
????}???
????delete[]?s;???
????return?res;???
}???
??
??
??
??
?/*******************************************************\??
{?*******************************************************?}??
{?*?????????????????從內存中加載并運行exe???????????????*?}??
{?*******************************************************?}??
{?*?參數：????????????????????????????????????????????????}??
{?*?Buffer:?內存中的exe地址???????????????????????????????}??
{?*?Len:?內存中exe占用長度????????????????????????????????}??
{?*?CmdParam:?命令行參數(不包含exe文件名的剩余命令行參數）}??
{?*?ProcessId:?返回的進程Id???????????????????????????????}??
{?*?返回值：?如果成功則返回進程的Handle(ProcessHandle),???}??
{????????????如果失敗則返回INVALID_HANDLE_VALUE???????????}??
{?*******************************************************?}??
?\*******************************************************/??
HANDLE?MemExecute(void?*ABuffer,?long?Len,?char?*CmdParam,?unsigned?long?*ProcessId)???
{???
????HANDLE?res?=?INVALID_HANDLE_VALUE;???
????PIMAGE_NT_HEADERS?peH;???
????PIMAGE_SECTION_HEADERS?peSecH;???
????void?*Ptr;???
????unsigned?long?peSz;???
????if(AlignPEToMem(ABuffer,?Len,?peH,?peSecH,?Ptr,?peSz))???
????{???
????????res?=?AttachPE(CmdParam,?peH,?peSecH,?Ptr,?peSz,?*ProcessId);???
????????VirtualFree(Ptr,?peSz,?MEM_DECOMMIT);???
????}???
????return?res;???
}???
??
//?初始化???
class?CInit???
{???
public:???
????CInit()???
????{???
????????MyVirtualAllocEx?=?(pfVirtualAllocEx)GetProcAddress(GetModuleHandle("Kernel32.dll"),?"VirtualAllocEx");???
????}???
}Init;???
??
??
??
??
int?APIENTRY?WinMain(HINSTANCE?hInstance,???
?????????????????????HINSTANCE?hPrevInstance,???
?????????????????????LPSTR?????lpCmdLine,???
?????????????????????int???????nCmdShow)???
{???
????HANDLE?hFile?=?NULL;???
????hFile?=?::CreateFile(?"f:\\SourceFromCsdn2.exe"??
????????,?FILE_ALL_ACCESS???
????????,?0???
????????,?NULL???
????????,?OPEN_EXISTING???
????????,?FILE_ATTRIBUTE_NORMAL???
????????,?NULL???
????????);???
????if(?hFile?==?INVALID_HANDLE_VALUE?)???
????????return?-1;???
??
????::SetFilePointer(?hFile,?0,?NULL,?FILE_BEGIN);???
????DWORD?dwFileSize?=?::GetFileSize(?hFile,?NULL);???
??
????LPBYTE?pBuf?=?new?BYTE[dwFileSize];???
????memset(?pBuf,?0,?dwFileSize);???
??
????DWORD?dwNumberOfBytesRead?=?0;???
????::ReadFile(?hFile???
????????,?pBuf???
????????,?dwFileSize???
????????,?&dwNumberOfBytesRead???
????????,?NULL???
????????);???
??
????::CloseHandle(hFile);???
???????
????unsigned?long?ulProcessId?=?0;???
????MemExecute(?pBuf,?dwFileSize,?"",?&ulProcessId);???
????delete[]?pBuf;???
??
???????
????return?0;???
}???
??
posted on 2006-11-20 11:54 李錦俊(mybios) 閱讀(12185) 評論(6)  編輯 收藏 引用 所屬分類: C++

Feedback

# re: 【轉貼】直接運行內存中的程序 2006-11-24 09:40 oosky
這個東西不錯。
學習學習。。。  回復  更多評論
  

# re: 【轉貼】直接運行內存中的程序 2007-05-05 22:04 vc
太好了，偶正在找這個呢，多謝！  回復  更多評論
  

# re: 【轉貼】直接運行內存中的程序 2009-07-30 23:20 zac
對不起，我沒有看到載入文件在哪里

請問有完成的源代碼（有載入文件并執行的實例）提供嗎？謝謝  回復  更多評論
  

# re: 【轉貼】直接運行內存中的程序 2009-07-31 00:57 zac
不好意思，我知道了，謝謝！  回復  更多評論
  

# re: 【轉貼】直接運行內存中的程序 2009-11-08 17:28 abc
真的可以嗎??? 找了n久, 研究一下  回復  更多評論
  

# re: 【轉貼】直接運行內存中的程序 2011-11-20 23:39 J0y5tlck
編譯不起來啊？  回復  更多評論
  

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