/* By: e.wiZz!
*Info: tuga je golema :D
*tnx 2 QKrunix,F34R,aluigi,and pplz from 50centshost.com,pozdrav deckima s elitesecurity.org
* tested on winpcap 4.0.2, Dev-CPP 4.9.9.2, windows xp professional sp2....found by http://spion.ws/projects.php
*Okai,send TCP packetz to remote serv0r,eh?
*/
#include <stdio.h>
#include <string.h>
#include <winsock2.h>
#include <iphlpapi.h>
#include <unistd.h>
#include <pcap.h>
#include <remote-ext.h>
#define IP_PORT 0x0800
char LocalIP[20] = { 0 };
char InterfaceName[256] = { 0 };
char GatewayIP[20] = { 0 };
BYTE GatewayMac[6];
typedef struct et_header
{
unsigned char eh_dst[6];
unsigned char eh_src[6];
unsigned short eh_type;
}ET_HEADER;
typedef struct ip_hdr
{
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;
typedef struct tcp_hdr
{
unsigned short th_sport;
unsigned short th_dport;
unsigned int th_seq;
unsigned int th_ack;
unsigned char th_lenres;
unsigned char th_flag;
unsigned short th_win;
unsigned short th_sum;
unsigned short th_urp;
}TCP_HEADER;
typedef struct tsd_hdr
{
unsigned long saddr;
unsigned long daddr;
char mbz;
char ptcl;
unsigned short tcpl;
}PSD_HEADER;
unsigned short CheckSum(unsigned short * buffer, int size)
{
unsigned long cksum = 0;
while (size > 1)
{
cksum += *buffer++;
size -= sizeof(unsigned short);
}
if (size)
{
cksum += *(unsigned char *) buffer;
}
cksum = (cksum >> 16) + (cksum & 0xffff);
cksum += (cksum >> 16);
return (unsigned short) (~cksum);
}
/*
void GetLocalIP( )
{
WORD wVersionRequested;
WSADATA wsaData;
char name[255];
PHOSTENT hostinfo;
wVersionRequested = MAKEWORD( 2, 0 );
if( WSAStartup( wVersionRequested, &wsaData ) == 0 )
{
if( gethostname( name, sizeof(name) ) == 0 )
{
if( (hostinfo = gethostbyname(name) ) != NULL )
{
strcpy( LocalIP, inet_ntoa( *(struct
in_addr*)*hostinfo->h_addr_list ) );
}
WSACleanup( );
}
*/
int GetDevices( )
{
pcap_if_t *alldevs;
pcap_if_t *d;
int i = 0;
char errbuf[PCAP_ERRBUF_SIZE];
/* divajs,eh?*/
if (pcap_findalldevs_ex(PCAP_SRC_IF_STRING, NULL /* auth is not
needed */, &alldevs, errbuf) == -1)
{
fprintf(stderr,”Error in pcap_findalldevs_ex: %s\n“, errbuf);
exit(1);
}
for( d = alldevs; d != NULL; d = d->next )
{
printf(”%d. %s“, ++i, d->name);
if (d->description)
{
printf( “ (%s)“, d->description );
}
if( d->addresses != NULL )
{
if( d->addresses->addr->sa_family == AF_INET )
{
printf( “: %s\n“, inet_ntoa( ((struct sockaddr_in*)d->addresses->addr)->sin_addr ) );
}
else
{
printf( “\n” );

}
}
else
{
printf(” (No description available)\n“);
}
}
if (i == 0)
{
printf(”\nNejma interfejsa ba! Imash winpcap?.\n“);
return -1;
}
printf( “\nIzaberi index adaptera：” );
int AdapterIndex = 1;
scanf( “%d“, &AdapterIndex );
if( AdapterIndex > i )
{
printf( “网卡选错啦\n” );
return -1;
}
d = alldevs;
for( int index = 1; index < AdapterIndex; index ++ )
{
d = d->next;
}
if( d->name == NULL || d->addresses == NULL )
{
printf( “网卡选错啦\n” );
return -1;
}
strcpy( InterfaceName, d->name );
strcpy( LocalIP, inet_ntoa( ((struct sockaddr_in
*)d->addresses->addr)->sin_addr ) );
/*spektakl,eh?*/
pcap_freealldevs(alldevs);
return 1;
}
int GetGateWayMac( )
{
PIP_ADAPTER_INFO AdapterInfo;
ULONG OutBufLen = sizeof(IP_ADAPTER_INFO);
> > > > AdapterInfo = (IP_ADAPTER_INFO *)malloc(sizeof (IP_ADAPTER_INFO));
if( AdapterInfo == NULL )
{
printf(”Error allocating memory needed to call
GetAdaptersinfo\n“);
return -1;
}
if( GetAdaptersInfo( AdapterInfo, &OutBufLen ) ==
ERROR_BUFFER_OVERFLOW )
{
free( AdapterInfo );
AdapterInfo = (IP_ADAPTER_INFO *)malloc( OutBufLen );
if( AdapterInfo == NULL )
{
printf(”Error allocating memory needed to call
GetAdaptersinfo\n“);
return -1;
}
}
if( GetAdaptersInfo( AdapterInfo, &OutBufLen ) == NO_ERROR )
{
PIP_ADAPTER_INFO a = AdapterInfo;
BOOL Found = FALSE;
while( a )
{
if( strcmp(a->IpAddressList.IpAddress.String, LocalIP) == 0 )
{
strcpy( GatewayIP, a->GatewayList.IpAddress.String );
Found = TRUE;
break;
}
a = a->Next;
}
if( !Found )
{
printf( “Get gateway’s ip error.\n” );
free( AdapterInfo );
return -1;
}
else
{
free( AdapterInfo );
}
}
else
{
printf( “Get gateway’s ip error.\n” );
free( AdapterInfo );
return -1;
}
BYTE Mac[6];
ULONG MacLen = 6;
SendARP( inet_addr(GatewayIP), 0, (PULONG)&Mac, &MacLen );
memcpy( GatewayMac, Mac, MacLen );
/*
for( int index = 0; index < MacLen; index ++ )
{
printf( “%d: %02x\n”, index, Mac[index] );
}
printf( “\n%d\n”, MacLen );
*/
}
void Usage( char *me )
{
printf( “Make tcp package 0.1,\n” );
printf( “%s: targetip targetport [flag]\n“, me );
printf( “flag: \n” );
printf( “ u|U set urg flag.\n” );
printf( “ a|A set ack flag.\n” );
printf( “ p|P set push flag.\n” );
printf( “ r|R set rst flag.\n” );
printf( “ s|S set syn flag.\n” );
printf( “ f|F set fin flag.\n” );
printf( “ default is syn flag, and you can use sa to set
syn+ack, and more…\n” );
}
int main( int argc, char *argv[] )
{
ET_HEADER EtHeader;
IP_HEADER IpHeader;
TCP_HEADER TcpHeader;
PSD_HEADER PsdHeader;
u_char Buffer[sizeof(ET_HEADER) + sizeof(IP_HEADER) +
sizeof(TCP_HEADER)] = { 0 };
if( (argc != 3) && (argc != 4) )
{
Usage( argv[0] );
exit( -1 );
}
int Flag = 2;
if( argc == 4 )
{
Flag = 0;
if( strchr(argv[3], ‘U’) || strchr(argv[3], ‘u’) )
{
Flag = Flag | 32;
}
if( strchr(argv[3], ‘A’) || strchr(argv[3], ‘a’) )
{
Flag = Flag | 16;
}
if( strchr(argv[3], ‘P’) || strchr(argv[3], ‘p’) )
{
Flag = Flag | 8;
}
if( strchr(argv[3], ‘R’) || strchr(argv[3], ‘r’) )
{
Flag = Flag | 4;
}
if( strchr(argv[3], ‘S’) || strchr(argv[3], ’s’) )
{
Flag = Flag | 2;
}
if( strchr(argv[3], ‘F’) || strchr(argv[3], ‘f’) )
{
Flag = Flag | 1;
}
}
//GetLocalIP( );
if( -1 == GetDevices( ) )
{
exit( -1 );
}
//printf( “Adapter is %s, ip is %s\n”, InterfaceName, LocalIP );
if( -1 == GetGateWayMac( ) )
{
exit( -1 );
}
//printf( “Gateway IP is %s\n”, GatewayIP );
//printf( “Gateway Mac is %x\n”, *GatewayMac );
memcpy( EtHeader.eh_dst, GatewayMac, 6 );
memset( EtHeader.eh_src, 0xa, 6 );
EtHeader.eh_type = htons( IP_PROTO );
IpHeader.h_verlen = (4<<4 | sizeof(IpHeader)/sizeof(unsigned int));
IpHeader.tos = 0;
IpHeader.total_len = htons(sizeof(IpHeader)+sizeof(TcpHeader));
IpHeader.ident = 1;
IpHeader.frag_and_flags = 0×40;
IpHeader.ttl = 128;
IpHeader.proto = IPPROTO_TCP;
IpHeader.checksum = 0;
IpHeader.sourceIP = inet_addr( LocalIP );
IpHeader.destIP = inet_addr( argv[1] );
TcpHeader.th_sport = htons( rand()%60000 + 1024 );
TcpHeader.th_dport = htons( atoi(argv[2]) );
TcpHeader.th_seq = htonl( rand()%900000000 + 100000 );
TcpHeader.th_ack = 0;
TcpHeader.th_lenres = (sizeof(TcpHeader)/4<<4|0);
TcpHeader.th_flag = Flag;
TcpHeader.th_win = htons(512);
TcpHeader.th_sum = 0;
TcpHeader.th_urp = 0;
PsdHeader.saddr = inet_addr( LocalIP );
PsdHeader.daddr = IpHeader.destIP;
PsdHeader.mbz = 0;
PsdHeader.ptcl = IPPROTO_TCP;
PsdHeader.tcpl = htons(sizeof(TcpHeader));
memcpy( Buffer, &PsdHeader, sizeof(PsdHeader) );
memcpy( Buffer + sizeof(PsdHeader), &TcpHeader, sizeof(TcpHeader) );
TcpHeader.th_sum = CheckSum( (unsigned short *)Buffer,
sizeof(PsdHeader) + sizeof(TcpHeader) );
memset( Buffer, 0, sizeof(Buffer) );
memcpy( Buffer, &IpHeader, sizeof(IpHeader) );
IpHeader.checksum = CheckSum( (unsigned short *)Buffer,
sizeof(IpHeader) );
memset( Buffer, 0, sizeof(Buffer) );
memcpy( Buffer, (void *)&EtHeader, sizeof(ET_HEADER) );
memcpy( Buffer + sizeof(ET_HEADER), (void *)&IpHeader,
sizeof(IP_HEADER) );
memcpy( Buffer + sizeof(ET_HEADER) + sizeof(IP_HEADER), (void*)&TcpHeader, sizeof(TCP_HEADER) );
char errbuf[PCAP_ERRBUF_SIZE] = { 0 };
pcap_t *fp;
if ( (fp= pcap_open( InterfaceName, 100,
PCAP_OPENFLAG_PROMISCUOUS, 100, NULL, errbuf ) ) == NULL )
{
fprintf(stderr,”\nUnable to open the adapter. %s is not
supported by WinPcap\n“, InterfaceName );
return -1;
}
if ( pcap_sendpacket( fp, Buffer, sizeof(Buffer) ) != 0 )
{
fprintf(stderr,”\nError sending the packet: \n“,
pcap_geterr(fp));
return -1;
}
printf( “poslano ok!\nData is:\n” );
for( int i = 0; i < sizeof(Buffer); i ++ )
{
printf( “%02x “, Buffer );
}
return 0;
}