├── LICENSE ├── README.md ├── config └── netguard.cfg ├── core ├── NetGUARD.py ├── __init__.py └── jarvis.py ├── log └── NetGUARD.log ├── netguard.py └── requirements.txt /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. By contrast, 15 | the GNU General Public License is intended to guarantee your freedom to 16 | share and change all versions of a program--to make sure it remains free 17 | software for all its users. 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It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | {one line to give the program's name and a brief idea of what it does.} 635 | Copyright (C) {year} {name of author} 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | {project} Copyright (C) {year} {fullname} 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # NetGUARD 2 | Network Guardian v1.2
3 | 4 | Defend host, give voice warnings to sysadmin and generate log files.
5 | 6 | ## Dependencies 7 | 8 | - libasound-dev libjack-jackd2-dev portaudio19-dev python-pyaudio build-essential python-dev libespeak1 libffi-dev 9 | 10 | ## Installation 11 | 12 | - git clone https://github.com/m4n3dw0lf/NetGUARD 13 | - cd NetGUARD && pip install -r requirements.txt 14 | - nano config/netguard.cfg (Configure required settings) 15 | - ./netguard.py -h 16 | 17 | ## Basics 18 | 19 | > examples: 20 | 21 | ``` 22 | ./netguard.py Start NetGUARD as subprocess 23 | ./netguard.py --verbose or -v Start NetGUARD verbosely. 24 | ./netguard.py --stop or -s Stop NetGUARD subprocess. 25 | ./netguard.py --help or -h Print this help message. 26 | ``` 27 | 28 | ## Current Features 29 | 30 | 31 | ### Denial Of Service Protection 32 | 33 | - Block connections from host after a TCP/UDP/ICMP flood attack is detected. (Guardian) 34 | - Report if someone is performing a TCP/UDP/ICMP flood DoS. (Monitor) 35 | 36 | ### ARP Protection 37 | 38 | - Set static ARP with your gateway. (Guardian) 39 | - Report if someone is ARP spoofing the gateway. (Monitor) 40 | - Report if you are ARP spoofing the gateway. (Monitor) 41 | 42 | ### DHCP Protection 43 | 44 | - Protect against DHCP Acknowledgement injection (Guardian) 45 | - Reports about DHCP discovers, requests, acknowledgements (Monitor) 46 | 47 | ### SSH Protection 48 | 49 | - Block SSH connections from IP after multiple failed attempts. (Guardian) 50 | - Report if someone open a socket with the SSH server. (Monitor) 51 | 52 | ### FTP Protection 53 | 54 | - Block FTP connections from IP after multiple failed attempts. (Guardian) 55 | - Report if someone enter a wrong password in the FTP server. (Monitor) 56 | 57 | ### SQL Protection 58 | 59 | - Block MySQL connections from IP after multiple failed attempts. (Guardian) 60 | - Report if someone enter a wrong password in the MySQL server. (Monitor) 61 | -------------------------------------------------------------------------------- /config/netguard.cfg: -------------------------------------------------------------------------------- 1 | [NetworkSettings] 2 | 3 | interface : x 4 | 5 | gateway_ip : x.x.x.x 6 | 7 | gateway_mac : x.x.x.x.x.x 8 | 9 | dns_server : x.x.x.x 10 | 11 | dhcp_server: x.x.x.x 12 | -------------------------------------------------------------------------------- /core/NetGUARD.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env python2.7 2 | #coding=UTF-8 3 | 4 | # Copyright (c) 2016 Angelo Moura 5 | # 6 | # NetGUARD is free software; you can redistribute it and/or 7 | # modify it under the terms of the GNU General Public License as 8 | # published by the Free Software Foundation; either version 3 of the 9 | # License, or (at your option) any later version. 10 | # 11 | # This program is distributed in the hope that it will be useful, but 12 | # WITHOUT ANY WARRANTY; without even the implied warranty of 13 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 | # General Public License for more details. 15 | # You should have received a copy of the GNU General Public License 16 | # along with this program; if not, write to the Free Software 17 | # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 18 | # USA 19 | 20 | # disable warnings from scapy 21 | import logging 22 | logging.getLogger("scapy.runtime").setLevel(logging.ERROR) 23 | from scapy.all import * 24 | 25 | # core libs 26 | import os 27 | from jarvis import Jarvis 28 | from datetime import datetime 29 | import time 30 | 31 | # background running 32 | import subprocess 33 | 34 | # getmac and getip 35 | import socket 36 | import fcntl 37 | import struct 38 | 39 | # parse config file 40 | import ConfigParser 41 | 42 | 43 | # Function to get given interface IP address 44 | def get_myip(interface): 45 | try: 46 | s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) 47 | return socket.inet_ntoa(fcntl.ioctl( 48 | s.fileno(), 49 | 0x8915, 50 | struct.pack('256s', interface[:15]) 51 | )[20:24]) 52 | except: 53 | print "[!] Set a valid interface on the configuration file." 54 | exit(0) 55 | # Function to get given interface MAC address 56 | def get_mymac(interface): 57 | try: 58 | s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) 59 | info = fcntl.ioctl(s.fileno(), 0x8927, struct.pack('256s', interface[:15])) 60 | return ''.join(['%02x:' % ord(char) for char in info[18:24]])[:-1] 61 | except: 62 | print "[!] Set a valid interface on the configuration file." 63 | exit(0) 64 | 65 | # Guardian Class 66 | class NetGUARD(object): 67 | 68 | 69 | name = "Network Guardian" 70 | desc = "Defend host, give warnings to sysadmin and log to txt file." 71 | version = "0.9" 72 | 73 | # Initialize, create NetGUARD global variables and parse config file 74 | def __init__(self): 75 | 76 | 77 | # Config File 78 | os.path.abspath("config/NetGUARD.cfg") 79 | self.config = ConfigParser.ConfigParser() 80 | self.config.read("config/netguard.cfg") 81 | 82 | # Call Jarvis 83 | self.Jarvis = Jarvis() 84 | 85 | # Log file 86 | os.path.abspath("log/NetGUARD.log") 87 | 88 | # Jail 89 | self.jail = [] 90 | 91 | try: 92 | # Network Interface from config 93 | self.interface = self.configmap("NetworkSettings")['interface'] 94 | 95 | # Gateway IP address from config 96 | self.gateway_ip = self.configmap("NetworkSettings")['gateway_ip'] 97 | 98 | # Gateway MAC address from config 99 | self.gateway_mac = self.configmap("NetworkSettings")['gateway_mac'] 100 | 101 | # DNS Server IP address from config 102 | self.dns_server = self.configmap("NetworkSettings")['dns_server'] 103 | 104 | # DHCP Server IP address from config 105 | self.dhcp_server = self.configmap("NetworkSettings")['dhcp_server'] 106 | except Exception as e: 107 | print "[-] Check your config file in NetGUARD/config/netguard.cfg" 108 | print "[!] Exception caught: ".format(e) 109 | exit(0) 110 | 111 | # My Network Interface MAC_Address 112 | self.mymac = get_mymac(self.interface) 113 | 114 | # My LAN IP Address 115 | self.myip = get_myip(self.interface) 116 | 117 | # If we are ARP spoofing status 118 | self.myspoof_status = False 119 | 120 | # If someone is ARP spoofing status 121 | self.spoof_status = False 122 | 123 | # ICMP request for this host - DDoS avoid. 124 | self.icmp_count = 0 125 | # Network ICMP sources in 5s 126 | self.icmpsenders = {} 127 | 128 | 129 | # TCP != from gateway connections - DDoS avoid. 130 | self.tcp_count = 0 131 | # Network UDP sources in 5s 132 | self.tcpsenders = {} 133 | 134 | # UDP != from gateway connections - DDoS avoid. 135 | self.udp_count = 0 136 | # Network UDP sources in 5s 137 | self.udpsenders = {} 138 | 139 | # SSH client attempts and brute status 140 | self.ssh_count = 0 141 | self.ssh_brute = False 142 | 143 | # MySQL client attempts and brute status 144 | self.sql_count = 0 145 | self.sql_brute = False 146 | 147 | # FTP client attempts and brute status 148 | self.ftp_count = 0 149 | self.ftp_brute = False 150 | 151 | # Time variables 152 | self.start_time = time.time() 153 | self.current_time = 0 154 | 155 | #ICMP time auxiliary 156 | self.itt = 0 157 | self.itt2 = 0 158 | 159 | #TCP time auxiliary 160 | self.ttt = 0 161 | self.ttt2 = 0 162 | 163 | #UDP time auxiliary 164 | self.utt = 0 165 | self.utt2 = 0 166 | 167 | #SSH time auxiliary 168 | self.sst = 0 169 | self.sst2 = 0 170 | 171 | #SQL time auxiliary 172 | self.sqt = 0 173 | self.sqt2 = 0 174 | 175 | #FTP time auxiliary 176 | self.ftt = 0 177 | self.ftt2 = 0 178 | 179 | # Configuration file mapping 180 | def configmap(self, section): 181 | dict = {} 182 | options = self.config.options(section) 183 | for option in options: 184 | try: 185 | dict[option] = self.config.get(section,option) 186 | if dict[option] == -1: 187 | DebugPrint("[!] Skip: {}".format(option)) 188 | except: 189 | print "[!] Exception on: %s".format(s) 190 | dict[option] = None 191 | return dict 192 | 193 | 194 | # Main routine 195 | def main(self, p): 196 | 197 | # Ethernet Frame 198 | if p.haslayer(Ether): 199 | # Media Access Control destination 200 | mac_dst = str(p[Ether].dst) 201 | # Media Acess Control source 202 | mac_src = str(p[Ether].src) 203 | 204 | 205 | # ARP Layer Protection 206 | if p.haslayer(ARP): 207 | 208 | # is-at 209 | if p[ARP].op == 2: 210 | # Sender Hardware Address 211 | hardware_src = p[ARP].hwsrc 212 | # Sender Protocol Address 213 | protocol_src = p[ARP].psrc 214 | # Target Hardware Address 215 | hardware_dst = p[ARP].hwdst 216 | # Target Protocol Address 217 | protocol_dst = p[ARP].pdst 218 | 219 | # If gateway ARP is-at is normal 220 | if protocol_src == self.gateway_ip and hardware_src == self.gateway_mac: 221 | if self.spoof_status == True: 222 | self.log("Gateway returned to original mac address.") 223 | self.Jarvis.Say("The gateway has returned to the original mac.") 224 | self.spoof_status = False 225 | if self.myspoof_status == True: 226 | self.log("This host stop to arp spoof the gateway. \n") 227 | self.Jarvis.Say("You stopped to arp spoof the gateway sir.") 228 | self.myspoof_status = False 229 | return 230 | 231 | # If the op is: gateway is at and the hardware source diverges from original gateway MAC. 232 | if protocol_src == self.gateway_ip and hardware_src != self.gateway_mac: 233 | 234 | # If the person that are doing the ARP spoof is me." 235 | if hardware_src == self.mymac: 236 | 237 | 238 | if self.myspoof_status == False: 239 | # Log 240 | self.log("This host start to arp spoof the gateway. \n") 241 | 242 | self.Jarvis.Say("You are arp spoofing the gateway sir.") 243 | 244 | # Status 245 | self.myspoof_status = True 246 | 247 | else: 248 | return 249 | 250 | # If the person is not you 251 | else: 252 | if self.spoof_status == False: 253 | 254 | for i in range(0,3): 255 | self.Jarvis.Say("A host is trying to arp spoof the network.".format(hardware_src.replace(":"," "))) 256 | #os.system("iptables -A INPUT -m mac --mac-source {} -j REJECT".format(hardware_src)) 257 | time.sleep(2) 258 | 259 | # Log 260 | self.log("The MAC - {} is trying to arp spoof the network. \n".format(hardware_src)) 261 | 262 | 263 | # Status 264 | self.spoof_status = True 265 | 266 | else: 267 | return 268 | 269 | 270 | # IP Layer Protection 271 | if p.haslayer(IP): 272 | ip_src = str(p[IP].src) 273 | ip_dst = str(p[IP].dst) 274 | ip_chk = p[IP].chksum 275 | ip_len = p[IP].len 276 | 277 | #DDoS ICMP Layer Protection 278 | if p.haslayer(ICMP): 279 | type = p[ICMP].type 280 | if ip_src != self.myip and ip_dst == self.myip and type == 8: 281 | if ip_dst not in self.icmpsenders: 282 | # Append new ICMP sender on network 283 | self.icmpsenders.update({ip_src: self.tcp_count}) 284 | self.icmp_count += 1 285 | 286 | # First time value from 5s delay 287 | if self.icmp_count == 1: 288 | self.itt = time.time() 289 | else: 290 | self.itt2 = time.time() 291 | 292 | for ip,count in self.icmpsenders.iteritems(): 293 | 294 | if count > 1000 and ip not in self.jail: 295 | self.log("IP - {}/MAC - {} start to perform a ICMP denial of service attack against this host.".format(ip,mac_src)) 296 | self.Jarvis.Say("A host is performing a ICMP denial of service attack against this host.") 297 | os.system("iptables -A INPUT -p icmp -s {} -j DROP".format(ip,str(dport))) 298 | self.Jarvis.Say("Raising the firewall for the attacker") 299 | self.jail.append(ip) 300 | 301 | interval = self.itt2 - self.itt 302 | if interval >= 5: 303 | self.icmp_count = 0 304 | self.icmpsenders.clear() 305 | 306 | # DDoS TCP Layer Protection 307 | if p.haslayer(TCP): 308 | sport = p[TCP].sport 309 | dport = p[TCP].dport 310 | if ip_src != self.gateway_ip and ip_src != self.myip and ip_dst == self.myip: 311 | if ip_dst not in self.tcpsenders: 312 | # Append new TCP sender on network 313 | self.tcpsenders.update({ip_src: self.tcp_count}) 314 | self.tcp_count += 1 315 | 316 | # First time value from 5s delay 317 | if self.tcp_count == 1: 318 | self.ttt = time.time() 319 | else: 320 | # Other time values from 5s delay 321 | self.ttt2 = time.time() 322 | 323 | for ip,count in self.tcpsenders.iteritems(): 324 | 325 | if count > 1000 and ip not in self.jail: 326 | self.log("IP - {}/MAC - {} start to perform a TCP denial of service attack against this host.".format(ip,mac_src)) 327 | self.Jarvis.Say("A host is performing a TCP denial of service attack against this host.") 328 | os.system("iptables -A INPUT -p tcp -s {} -j DROP".format(ip)) 329 | self.log("Raising the firewall for the attacker") 330 | self.Jarvis.Say("Raising the firewall for the attacker") 331 | self.jail.append(ip) 332 | 333 | interval = self.ttt2 - self.ttt 334 | if interval >= 5: 335 | self.tcp_count = 0 336 | self.tcpsenders.clear() 337 | 338 | # UDP Layer Protection 339 | if p.haslayer(UDP): 340 | sport = p[UDP].sport 341 | # DHCP PROTECTION 342 | if p.haslayer(DHCP): 343 | mtype = p[DHCP].options 344 | hostname = None 345 | address = None 346 | dhcp_server = None 347 | dns_server = None 348 | router = None 349 | #DHCP DISCOVER 350 | if mtype[0][1] == 1: 351 | try: 352 | for x,y in mtype: 353 | if x == "hostname": 354 | hostname = y 355 | self.log("MAC - {}/Hostname: {} sent a discover for the DHCP server".format(mac_src, hostname)) 356 | 357 | except: 358 | self.log("MAC - {} sent a discover for the DHCP server".format(mac_src)) 359 | pass 360 | if self.mymac != mac_src: 361 | self.Jarvis.Say("A host sent a discover for a DHCP server.") 362 | else: 363 | self.Jarvis.Say("We are discovering for a DHCP server.") 364 | #DHCP REQUEST 365 | elif mtype[0][1] == 3: 366 | try: 367 | for x,y in mtype: 368 | if x == "requested_addr": 369 | address = y 370 | if x == "hostname": 371 | hostname = y 372 | self.log("MAC - {}/Hostname: {} sent a IP Address({}) request for the DHCP server".format(mac_src, hostname, address)) 373 | 374 | except: 375 | self.log("MAC - {} sent a IP Address({}) request for the DHCP server".format(mac_src, address)) 376 | pass 377 | if self.mymac != mac_src: 378 | self.Jarvis.Say("A host requested an IP Address to the DHCP server.") 379 | else: 380 | self.Jarvis.Say("We are requesting our IP Address to the DHCP server.") 381 | #DHCP ACKNOWLEDGEMENT 382 | elif mtype[0][1] == 5: 383 | try: 384 | for x,y in mtype: 385 | if x == "server_id": 386 | dhcp_server = y 387 | if x == "name_server": 388 | dns_server = y 389 | if x == "router": 390 | router = y 391 | except: 392 | pass 393 | if router!= self.gateway_ip or dns_server != self.dns_server or dhcp_server != self.dhcp_server: 394 | self.log("A Fake DHCP Acknowledgement have been detected, MAC -{}/IP - {} sent a ACK with this configurations: DHCP Server: {}, DNS Server - {} and Router - {}".format(mac_src,ip_src,dhcp_server,dns_server,router)) 395 | self.Jarvis.Say("A Fake DHCP Acknowledgement have been detected") 396 | self.Jarvis.Say("Raising the firewall for the attacker and renewing the DHCP client") 397 | os.system("iptables -A INPUT -p tcp -s {} -j DROP".format(ip_src)) 398 | os.system("dhclient -r") 399 | os.system("dhclient") 400 | else: 401 | self.log("The DHCP Server have successfully DHCP Acknowledge the request.") 402 | self.Jarvis.Say("The DHCP server have successfully acknowledge the request") 403 | 404 | #DDoS flood protection 405 | else: 406 | if ip_src != self.gateway_ip and ip_src != self.myip and ip_dst == self.myip: 407 | if ip_dst not in self.udpsenders: 408 | self.udpsenders.update({ip_src: self.udp_count}) 409 | self.udp_count += 1 410 | 411 | if self.tcp_count == 1: 412 | self.utt = time.time() 413 | else: 414 | self.utt2 = time.time() 415 | 416 | for ip,count in self.udpsenders.iteritems(): 417 | 418 | if count > 500 and ip not in self.jail: 419 | self.log("IP - {}/MAC - {} start to perform a UDP denial of service attack against this host.".format(ip_src,mac_src)) 420 | self.Jarvis.Say("A host is performing a UDP denial of service attack against this host.") 421 | os.system("iptables -A INPUT -p udp -s {} -j DROP".format(ip_src)) 422 | self.log("Raising the firewall for the attacker") 423 | self.Jarvis.Say("Raising the firewall for the attacker") 424 | self.jail.append(ip) 425 | 426 | interval = self.utt2 - self.utt 427 | if interval >= 5: 428 | self.udp_count = 0 429 | self.udpsenders.clear() 430 | 431 | # Brute-Force TCP Layer Protection 432 | if p.haslayer(TCP) and p.haslayer(Raw): 433 | flags = {'F':'FIN','S':'SYN','R':'RST','P':'PSH','A':'ACK','U':'URG','E':'ECE','C':'CWR'} 434 | dport = p[TCP].dport 435 | sport = p[TCP].sport 436 | ack = p[TCP].ack 437 | seq = p[TCP].seq 438 | preflag = [flags[x] for x in p.sprintf('%TCP.flags%')] 439 | flag = "/".join(preflag) 440 | chksum = str(p[TCP].chksum) 441 | load = p[Raw].load 442 | 443 | # FTP Protection 444 | if sport == 21 and "530" in load and ip_src == self.myip: 445 | 446 | if self.ftp_brute == False: 447 | self.log("IP - {}/MAC - {} tried to connect with the FTP server with a wrong password.".format(ip_dst,mac_dst)) 448 | self.Jarvis.Say("A host tried to connect with the FTP server with a wrong password.") 449 | 450 | self.ftp_count +=1 451 | 452 | if self.ftp_count == 1: 453 | # Live minutes 454 | self.ftt = time.time() 455 | else: 456 | self.ftt2 = time.time() 457 | 458 | # If 4 ftp_client packets and 4º count time - 1º count time >= 1 459 | if self.ftp_count >= 4: 460 | 461 | interval = self.ftt2 - self.ftt 462 | if interval >= 360: 463 | self.ftp_count = 0 464 | else: 465 | self.ftp_brute = True 466 | os.system("iptables -A INPUT -p tcp -s {} --dport {} -j REJECT".format(ip_dst,str(sport))) 467 | # Log 468 | self.log("! IP - {}/MAC - {} is brute forcing the FTP server.".format(ip_dst,mac_dst)) 469 | self.log("Raising the firewall for the attacker") 470 | 471 | self.Jarvis.Say("The IP {} is brute forcing the FTP server.".format(ip_dst.replace("."," "))) 472 | self.Jarvis.Say("Raising the firewall for the attacker") 473 | 474 | # Status 475 | self.ftp_count = 0 476 | 477 | 478 | 479 | # MySQL Protection 480 | if sport == 3306 and "denied" in load and ip_src == self.myip: 481 | 482 | if self.sql_brute == False: 483 | self.log("IP - {}/MAC - {} tried to connect with the SQL server with a wrong password.".format(ip_dst,mac_dst)) 484 | self.Jarvis.Say("A host tried to connect with the SQL server with a wrong password.") 485 | 486 | self.sql_count +=1 487 | 488 | if self.sql_count == 1: 489 | # Live minutes 490 | self.sqt = time.time() 491 | else: 492 | self.sqt2 = time.time() 493 | 494 | # If 4 sql_client packets and 4º count time - 1º count time >= 1 495 | if self.sql_count >= 4: 496 | 497 | interval = self.sqt2 - self.sqt 498 | if interval >= 360: 499 | self.sql_count = 0 500 | else: 501 | self.sql_brute = True 502 | os.system("iptables -A INPUT -p tcp -s {} --dport {} -j REJECT".format(ip_dst,str(sport))) 503 | # Log 504 | self.log("! IP - {}/MAC - {} is brute forcing the SQL server.".format(ip_dst,mac_dst)) 505 | self.log("Raising the firewall for the attacker") 506 | 507 | self.Jarvis.Say("A host is brute forcing the SQL server.") 508 | self.Jarvis.Say("Raising the firewall for the attacker") 509 | # Status 510 | self.sql_count = 0 511 | 512 | 513 | # SSH Protection 514 | if "SSH" in load and ip_src != self.myip and ip_dst == self.myip: 515 | if self.ssh_brute == False: 516 | self.log("IP - {}/MAC - {} open a socket with the SSH server.".format(ip_src,mac_src)) 517 | self.Jarvis.Say("A host open a socket with the SSH server.") 518 | 519 | self.ssh_count +=1 520 | 521 | if self.ssh_count == 1: 522 | # Live minutes 523 | self.sst = time.time() 524 | else: 525 | self.sst2 = time.time() 526 | 527 | # If 4 ssh_client packets and 4º count time - 1º count time >= 1 528 | if self.ssh_count >= 3: 529 | 530 | interval = self.sst2 - self.sst 531 | if interval >= 360: 532 | self.ssh_count = 0 533 | self.sst = 0 534 | else: 535 | self.ssh_brute = True 536 | os.system("iptables -A INPUT -p tcp -s {} --dport {} -j REJECT".format(ip_src,str(dport))) 537 | # Log 538 | self.log("! IP - {}/MAC - {} is brute forcing the SSH server.".format(ip_src,mac_src)) 539 | self.log("Raising the firewall for the attacker") 540 | 541 | self.Jarvis.Say("A host is brute forcing the SSH server.".format(ip_dst.replace("."," "))) 542 | self.Jarvis.Say("Raising the firewall for the attacker") 543 | 544 | # Status 545 | self.ssh_count = 0 546 | self.sst = 0 547 | 548 | 549 | 550 | # Logger 551 | def log(self, message): 552 | file = open("log/NetGUARD.log","a+") 553 | file.write("\n") 554 | time = datetime.now().strftime('%Y-%m-%d_%H:%M:%S') 555 | file.write(time + ": ") 556 | file.write(message) 557 | file.close() 558 | 559 | 560 | # Start 561 | def start(self): 562 | try: 563 | pid = os.getpid() 564 | self.log("NetGUARD started") 565 | self.Jarvis.Say("Network guardian initialized on process {}.".format(pid)) 566 | 567 | # Set static ARP with the gateway. 568 | os.system("arp -s {} {}".format(self.gateway_ip, self.gateway_mac)) 569 | self.log("Static ARP set with gateway.") 570 | self.Jarvis.Say("Static ARP set with gateway.") 571 | 572 | # Start the sniffer. 573 | p = sniff(iface=self.interface, prn = self.main) 574 | time = datetime.now().strftime('%Y-%m-%d_%H:%M:%S') 575 | wrpcap("NetGUARD_{}.pcap".format(time),p) 576 | 577 | except Exception as e: 578 | self.log("Problem starting the network monitor") 579 | self.log("Exception: {}".format(e)) 580 | self.Jarvis.Say("Problem starting the network monitor, shutting down") 581 | 582 | 583 | # Start the sniffer as subprocess. 584 | def backgroundstart(self): 585 | try: 586 | with open("log/NetGUARD.log","a+") as stdout: 587 | self.p = subprocess.Popen(["python core/NetGUARD.py"], shell=True, stdout=stdout, stderr=stdout) 588 | self.log("NetGUARD in background started.") 589 | return 590 | except Exception as e: 591 | self.log("Problem starting NetGUARD in background") 592 | self.Jarvis.Say("Problem starting the network monitor in background") 593 | 594 | 595 | if __name__ == "__main__": 596 | 597 | netguard = NetGUARD() 598 | netguard.start() 599 | -------------------------------------------------------------------------------- /core/__init__.py: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/m4n3dw0lf/NetGUARD/2bab271393706c1bb7a7920cfd2f570cdc50d1f1/core/__init__.py -------------------------------------------------------------------------------- /core/jarvis.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env python2.7 2 | #cofing=UTF-8 3 | 4 | # Copyright (c) 2016 Angelo Moura 5 | # 6 | # This file is part of the program Jarvis 7 | # 8 | # Jarvis is free software; you can redistribute it and/or 9 | # modify it under the terms of the GNU General Public License as 10 | # published by the Free Software Foundation; either version 3 of the 11 | # License, or (at your option) any later version. 12 | # 13 | # This program is distributed in the hope that it will be useful, but 14 | # WITHOUT ANY WARRANTY; without even the implied warranty of 15 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 16 | # General Public License for more details. 17 | # You should have received a copy of the GNU General Public License 18 | # along with this program; if not, write to the Free Software 19 | # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 20 | # USA 21 | 22 | import serial 23 | import pyttsx 24 | #import speech_recognition as sr 25 | import serial.tools.list_ports 26 | import praw 27 | import sqlite3 28 | import random 29 | import os 30 | import subprocess 31 | 32 | class Jarvis(object): 33 | 34 | def __init__(self): 35 | self.version = "0.0.6" 36 | self.array = [] 37 | self.numbers = [] 38 | self.con = None # example sqlite3.connect('config/database.db'); 39 | self.serialport = self.arduino_check() 40 | self.rec = None #sr.Recognizer() 41 | self.engine = pyttsx.init() 42 | self.rate = self.engine.getProperty('rate') 43 | self.engine.setProperty('rate', self.rate-65) 44 | self.voices = self.engine.getProperty('voices') 45 | self.engine.setProperty('voice',self.voices[16].id) #1,9,10,11,16,22,25 46 | self.ser = serial.Serial() 47 | self.ser.port = self.serialport 48 | self.ser.baudrate = 9600 49 | 50 | def onEnd(self, name, completed): 51 | self.engine.endLoop() 52 | 53 | def Jarvis(self, text): 54 | self.string = str(text) 55 | self.engine = pyttsx.init() 56 | self.engine.connect('finished-utterance', self.onEnd) 57 | self.engine.say(self.string) 58 | self.engine.startLoop() 59 | 60 | def SayIgnore(self, text): 61 | self.result = text.encode('ascii','ignore') 62 | self.Say(self.result) 63 | self.Say(" ") 64 | 65 | def Say(self, text): 66 | self.Jarvis(text) 67 | self.Jarvis(" ") 68 | 69 | def Listen(self): 70 | with sr.Microphone() as source: 71 | self.audio = self.rec.listen(source) 72 | try: 73 | self.result = self.rec.recognize_google(self.audio) 74 | print self.result 75 | return self.result 76 | except sr.UnknownValueError: 77 | print("Google Speech Recognition could not understand audio") 78 | except sr.RequestError as e: 79 | print("Could not request results from Google Speech Recognition service; {0}".format(e)) 80 | 81 | def get_ports(self): 82 | self.ports = serial.tools.list_ports.comports() 83 | for p in self.ports: 84 | return p 85 | 86 | def arduino_check(self): 87 | self.result = self.get_ports() 88 | 89 | if self.result is not None: 90 | for i in self.result: 91 | self.array.append(i) 92 | if "Arduino" in self.array: 93 | index = self.array.index("Arduino Leonardo") 94 | nport = index -1 95 | port = self.array[nport] 96 | return port 97 | else: 98 | pass 99 | else: 100 | pass 101 | 102 | 103 | 104 | def SerialWrite(self, list): 105 | self.command = str(list) 106 | self.ser.write(self.command) 107 | 108 | 109 | def start(self,path): 110 | try: 111 | #devnull = open(os.devnull, 'wb') 112 | #p = subprocess.Popen(["python", path], shell=False, stdout=subprocess.PIPE, stderr=devnull) 113 | with open("log/jarvisout.txt", "a+") as stdout, open("log/jarviserr.txt", "a+") as stderr: 114 | self.p = subprocess.Popen(["python", path], shell=False, stdout=stdout, stderr=stderr) 115 | 116 | except Exception as e: 117 | print "[!] Exception caught: {}".format(e) 118 | 119 | 120 | def GetNews(self, limit=10): 121 | self.r = praw.Reddit(user_agent="Jarvis by /u/m4n3dw0lf") 122 | self.subs = self.r.get_subreddit("worldnews").get_hot(limit=limit) 123 | self.headlines = [] 124 | for sub in self.subs: 125 | self.headlines.append(sub.title) 126 | return self.headlines 127 | 128 | def SpeakNews(self, news=[]): 129 | try: 130 | for a in news: 131 | self.SayIgnore(a) 132 | self.SayIgnore("Next") 133 | self.Say("I Finished reading the news sir.") 134 | except KeyboardInterrupt: 135 | print "[*] User requested interrupt" 136 | exit() 137 | except Exception as e: 138 | print "[!] Exception caught: {}".format(e) 139 | exit() 140 | 141 | def random(self, arg): 142 | with self.con: 143 | self.cur = self.con.cursor() 144 | cont = self.cur.execute("SELECT max(id) FROM {}".format(arg)) 145 | cont = self.cur.fetchone() 146 | for i in range(1,cont[0]+1): 147 | self.numbers.append(i) 148 | self.cur.execute("SELECT * FROM {} where id = {} limit 1".format(arg,random.choice(self.numbers))) 149 | id,msg = self.cur.fetchone() 150 | return msg 151 | 152 | -------------------------------------------------------------------------------- /log/NetGUARD.log: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/m4n3dw0lf/NetGUARD/2bab271393706c1bb7a7920cfd2f570cdc50d1f1/log/NetGUARD.log -------------------------------------------------------------------------------- /netguard.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env python2.7 2 | #coding=UTF-8 3 | 4 | # Copyright (c) 2016 Angelo Moura 5 | # 6 | # NetGUARD is free software; you can redistribute it and/or 7 | # modify it under the terms of the GNU General Public License as 8 | # published by the Free Software Foundation; either version 3 of the 9 | # License, or (at your option) any later version. 10 | # 11 | # This program is distributed in the hope that it will be useful, but 12 | # WITHOUT ANY WARRANTY; without even the implied warranty of 13 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 | # General Public License for more details. 15 | # You should have received a copy of the GNU General Public License 16 | # along with this program; if not, write to the Free Software 17 | # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 18 | # USA 19 | 20 | import os,sys 21 | from core.NetGUARD import NetGUARD 22 | 23 | 24 | path = os.path.abspath(os.path.dirname(sys.argv[0])) 25 | netguard = NetGUARD() 26 | 27 | version = "1.2" 28 | if os.geteuid() != 0: 29 | sys.exit("[-] Should be run as root.") 30 | 31 | 32 | def print_help(version): 33 | print " [*] NetGUARD v{}".format(version) 34 | print 35 | print " --verbose or -v Start NetGUARD verbosely." 36 | print " --stop or -s Stop NetGUARD." 37 | print " --help or -h Print this help message." 38 | 39 | 40 | if __name__ == "__main__": 41 | try: 42 | if sys.argv[1] == "--verbose" or sys.argv[1] == "-v": 43 | netguard.backgroundstart() 44 | os.system("tail -f {}/log/NetGUARD.log".format(path)) 45 | elif sys.argv[1] == "--stop" or sys.argv[1] == "-s": 46 | # KILL SIGINT 'CTRL + C' to generate pcap 47 | print "[!] NetGUARD finalized." 48 | os.system("killall python -s 2") 49 | elif sys.argv[1] == "--help" or sys.argv[1] == "-h": 50 | print_help(version) 51 | 52 | except IndexError: 53 | netguard.backgroundstart() 54 | 55 | except Exception as e: 56 | print "[!] Exception caught: {}".format(e) 57 | -------------------------------------------------------------------------------- /requirements.txt: -------------------------------------------------------------------------------- 1 | scapy==2.3.2 2 | decorator==4.0.10 3 | praw==3.5.0 4 | PyAudio==0.2.9 5 | pyserial==3.1.1 6 | pyttsx==1.1 7 | requests==2.10.0 8 | six==1.10.0 9 | update-checker==0.11 10 | configparser==3.5.0 11 | --------------------------------------------------------------------------------