python nmap扫描工具 python怎样编写类似nmap的扫描工具
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本文主要是利用scapy包编写了一个简易扫描工具,支持ARP、ICMP、TCP、UDP发现扫描,支持TCP SYN、UDP端口扫描,如下:
usage: python scan.py <-p ping扫描类型> <-s 端口发现类型> [-t target] [--port ports] 简单扫描工具,可以进行存活扫描及端口扫描. 存活扫描包括:ARP扫描、ICMP扫描、TCP扫描、UDP扫描. 端口扫描包括:TCP SYN扫描、TCP ACK扫描、TCP FIN扫描. optional arguments: -h, --help show this help message and exit -v, --version show program's version number and exit target group: 用于设置IP、PORT参数 --target TARGET target为IP或IP段,如192.168.1.1,192.168.1.x,或1 92.168.1.1-254 --port PORT port为待扫描的端口,如21,80,...或21-80 ping group: 用于开启存活扫描相关选项 -p 开启存活扫描 --ARP 启动ARP扫描 --ICMP 启动ICMP扫描 --TCP 启动TCP扫描 --UDP 启动UDP扫描 port scan group: 用于开启端口扫描相关选项 -s 开启端口扫描 --SYN 开启SYN扫描 --ACK 开启ACK扫描 --FIN 开启FIN扫描 --UPORT 开启UDP端口扫描 utils group: 用于开启扫描过程中的一些实用选项 --timeout TIMEOUT 设置发包超时时间,默认0.5秒 --retry RETRY 设置发包重试次数,默认不重试 以上做为说明,祝好运!
一、发现扫描
1.首先进行ARP扫描
python scan.py -p --target 192.168.1.1-254 --ARP [+]IP: 192.168.1.1 => MAC: 14:75:90:xx:xx:xx [+]IP: 192.168.1.111 => MAC: c6:36:55:xx:xx:xx [+]总共耗时9.84091806412秒.
通过retry参数增加发包尝试次数,如下:
python scan.py -p --target 192.168.1.1-254 --ARP --retry 2
[+]IP: 192.168.1.1 => MAC: 14:75:90:xx:xx:xx
[+]IP: 192.168.1.111 => MAC: c6:36:55:xx:xx:xx
[+]IP: 192.168.1.102 => MAC: 58:1f:28:xx:xx:xx
[+]IP: 192.168.1.114 => MAC: 6c:8d:c1:xx:xx:xx
[+]IP: 192.168.1.103 => MAC: 84:38:38:xx:xx:xx
[+]总共耗时20.429942131秒.
2.使用ICMP扫描,若没有指定任何扫描类型参数,默认会启用ICMP扫描,如下:
python scan.py -p --target 192.168.1.1-254 [+]没有指定任何ping扫描方式,默认选择ICMP扫描 [+]IP:主机192.168.1.1 echo-reply. [+]IP:主机192.168.1.111 echo-reply. [+]总共耗时10.7177450657秒.
通过timeout参数,设置较长的超时,可以防止网络状况不好造成的丢包,如下:
python scan.py -p --target 192.168.1.1-254 --timeout 2 [+]没有指定任何ping扫描方式,默认选择ICMP扫描 [+]IP:主机192.168.1.1 echo-reply. [+]IP:主机192.168.1.111 echo-reply. [+]IP:主机192.168.1.114 echo-reply. [+]总共耗时10.7566649914秒.
3.使用TCP扫描
python scan.py -p --target 192.168.1.100-120 --TCP --timeout 1 [+]请稍等,时间较长! [!]扫描... 192.168.1.100 [!]扫描... 192.168.1.101 [!]扫描... 192.168.1.102 [!]扫描... 192.168.1.103 [!]扫描... 192.168.1.104 [!]扫描... 192.168.1.105 [!]扫描... 192.168.1.106 [!]扫描... 192.168.1.107 [!]扫描... 192.168.1.108 [!]扫描... 192.168.1.109 [!]扫描... 192.168.1.110 [!]扫描... 192.168.1.111 [!]扫描... 192.168.1.112 [!]扫描... 192.168.1.113 [!]扫描... 192.168.1.114 [!]扫描... 192.168.1.115 [!]扫描... 192.168.1.116 [!]扫描... 192.168.1.117 [!]扫描... 192.168.1.118 [!]扫描... 192.168.1.119 [!]扫描... 192.168.1.120 [+]正在处理扫描信息. ==================== [+]主机 192.168.1.102 在线. [+]主机 192.168.1.103 在线. [+]主机 192.168.1.111 在线. [+]主机 192.168.1.114 在线. [+]总共耗时16.4359779358秒.
4.使用UDP扫描
python scan.py -p --target 192.168.1.100-120 --UDP --retry 3 [+]请稍等,时间较长! [!]扫描... 192.168.1.100 [!]扫描... 192.168.1.101 [!]扫描... 192.168.1.102 [!]扫描... 192.168.1.103 [!]扫描... 192.168.1.104 [!]扫描... 192.168.1.105 [!]扫描... 192.168.1.106 [!]扫描... 192.168.1.107 [!]扫描... 192.168.1.108 [!]扫描... 192.168.1.109 [!]扫描... 192.168.1.110 [!]扫描... 192.168.1.111 [!]扫描... 192.168.1.112 [!]扫描... 192.168.1.113 [!]扫描... 192.168.1.114 [!]扫描... 192.168.1.115 [!]扫描... 192.168.1.116 [!]扫描... 192.168.1.117 [!]扫描... 192.168.1.118 [!]扫描... 192.168.1.119 [!]扫描... 192.168.1.120 [+]正在处理扫描信息. ==================== [+]主机 192.168.1.102 在线. [+]主机 192.168.1.103 在线. [+]主机 192.168.1.111 在线. [+]主机 192.168.1.114 在线. [+]总共耗时33.5198891163秒.
二、端口扫描
1、TCP SYN端口扫描,不设置端口参数,则默认扫描1-1024端口
python scan.py --target 192.168.1.110-115 -s --SYN [+]没有指定任何扫描端口,默认扫描1-1024 [!]扫描... 192.168.1.110 [!]扫描... 192.168.1.111 [!]扫描... 192.168.1.112 [!]扫描... 192.168.1.113 [!]扫描... 192.168.1.114 [!]扫描... 192.168.1.115 [+]正在处理扫描信息. ==================== [+]主机 192.168.1.111 开放的TCP端口有:[80] [+]总共耗时165.125555992秒.
扫描指定端口:
python scan.py --target 192.168.1.1-254 -s --SYN --port 80 --timeout 1 [!]扫描... 192.168.1.1 [!]扫描... 192.168.1.2 [!]扫描... 192.168.1.3 [!]扫描... 192.168.1.4 ... [!]扫描... 192.168.1.253 [!]扫描... 192.168.1.254 [+]正在处理扫描信息. ==================== [+]主机 192.168.1.111 开放的TCP端口有:[80] [+]主机 192.168.1.1 开放的TCP端口有:[80] [+]总共耗时9.72222185135秒.
2、扫描UDP端口
python scan.py --target 192.168.1.1 -s --UPORT --timeout 1 [+]没有指定任何扫描端口,默认扫描1-1024 [!]扫描... 192.168.1.1 [+]正在处理扫描信息. ==================== [+]主机 192.168.1.1 开放的UDP端口有:[520] [+]总共耗时27.4742250443秒.
也可同时进行发现扫描与端口扫描,如下:
python scan.py --target 192.168.1.1-254 -p --ARP -s --SYN --port 80 --timeout 1 --retry 2 [+]IP: 192.168.1.1 => MAC: 14:75:90:xx:xx:xx [+]IP: 192.168.1.102 => MAC: 58:1f:28:xx:xx:xx [+]IP: 192.168.1.114 => MAC: 6c:8d:c1:xx:xx:xx [+]IP: 192.168.1.103 => MAC: 84:38:38:xx:xx:xx [+]IP: 192.168.1.101 => MAC: 5c:f7:e6:xx:xx:xx [!]扫描... 192.168.1.1 [!]扫描... 192.168.1.2 ... [!]扫描... 192.168.1.253 [!]扫描... 192.168.1.254 [+]正在处理扫描信息. ==================== [+]主机 192.168.1.1 开放的TCP端口有:[80] [+]主机 192.168.1.111 开放的TCP端口有:[80] [+]总共耗时45.2775988579秒.
OK,最后附上源码:
import argparse import re import time import threading from scapy.all import * import logging logging.getLogger('scapy.runtime').setLevel(logging.ERROR) class Discovery_Scan(object): ''' 说明:用于发现扫描 ''' def __init__(self,args,timeout=0.5,retry=0): self.targets = parse_target(args) self.timeout = timeout self.retry = retry def arp_scan(self,pdst): #ARP发现扫描 ans = sr1(ARP(pdst=pdst),timeout=self.timeout,retry=self.retry,verbose=False) if ans: if ans[ARP].op == 2: #操作码为2是is-at,是ARP响应 print '[+]IP: %s => MAC: %s' % (pdst,ans[ARP].hwsrc) def icmp_scan(self,dst): #ICMP发现扫描 ans = sr1(IP(dst=dst)/ICMP(),timeout=self.timeout,retry=self.retry,verbose=False) if ans: if ans[ICMP].type == 0: #ICMP type为0表示是ICMP echo-reply print '[+]IP:主机%s echo-reply.' % dst tcp_info = {} def tcp_scan(self,dst,port): #TCP SYN,发送TCP SYN包,有响应表示端口开放 ans,unans = sr(IP(dst=dst)/TCP(sport=RandShort(),dport=port,flags='S'), timeout=self.timeout,retry=self.retry,verbose=False) if ans.res: if ans.res[0][0][IP].dst not in Discovery_Scan.tcp_info: Discovery_Scan.tcp_info[ans.res[0][0][IP].dst] = True udp_info = {} def udp_scan(self,dst,port): #UDP,发送UDP包,有响应表示端口开放 ans,uans = sr(IP(dst=dst)/UDP(sport=RandShort(),dport=port), timeout=self.timeout,retry=self.retry,verbose=False) if ans.res: if ans.res[0][0][IP].dst not in Discovery_Scan.udp_info: Discovery_Scan.udp_info[ans.res[0][0][IP].dst] = True class Port_Scan(object): ''' 说明:用于进行端口扫描,判断端口是否开放 ''' def __init__(self,args,timeout=0.5,retry=0): self.targets = parse_target(args) self.timeout = timeout self.retry = retry syn_port_dict = {} def syn_port_scan(self,dst,port): #TCP SYN端口扫描,若SYN包返回携带SYN、ACK(即TCP.flags=18)标志的包,则表明此端口打开。 ans,uans = sr(IP(dst=dst)/TCP(sport=RandShort(),dport=port,flags='S'), timeout=self.timeout,retry=self.retry,verbose=False) if ans: first_respons_pkt = ans.res[0][1] if first_respons_pkt[TCP] and first_respons_pkt[TCP].flags == 18: if first_respons_pkt[IP].src not in Port_Scan.syn_port_dict: Port_Scan.syn_port_dict[first_respons_pkt[IP].src] = [first_respons_pkt[TCP].sport] else: Port_Scan.syn_port_dict[first_respons_pkt[IP].src].append(first_respons_pkt[TCP].sport) udp_port_dict = {} def udp_port_scan(self,dst,port): #UDP端口扫描,若UDP端口返回ICMP port-unreachable,则表示端口打开。(排除某些主机对任何UDP端口的探测都响应为ICMP port-unrechable) ans,uans = sr(IP(dst=dst)/UDP(sport=RandShort(),dport=port), timeout=self.timeout, retry=self.retry, verbose=False) if ans.res and ans.res[0][1].haslayer(UDPerror): first_respons_pkt = ans.res[0][1] if first_respons_pkt[IP].src not in Port_Scan.udp_port_dict: Port_Scan.udp_port_dict[first_respons_pkt[IP].src] = [first_respons_pkt[UDPerror].dport] else: Port_Scan.udp_port_dict[first_respons_pkt[IP].src].append(first_respons_pkt[UDPerror].dport) def parse_opt(): ''' @说明:通过argparse模块解析程序传入的参数 @return:args ''' usage = 'python %(prog)s <-p ping扫描类型> <-s 端口发现类型> [-t target] [--port ports]' description = '简单扫描工具,可以进行存活扫描及端口扫描.\n' \ '存活扫描包括:ARP扫描、ICMP扫描、TCP扫描、UDP扫描.\n' \ '端口扫描包括:TCP SYN扫描、TCP ACK扫描、TCP FIN扫描.' epilog = '以上做为说明,祝好运!' parser = argparse.ArgumentParser(usage=usage,description=description,epilog=epilog,version='v1.0') target_group = parser.add_argument_group('target group',description='用于设置IP、PORT参数') target_group.add_argument('--target',dest='target',action='store', help='target为IP或IP段,如192.168.1.1,192.168.1.x,或192.168.1.1-254') target_group.add_argument('--port',dest='port',action='store', help='port为待扫描的端口,如21,80,...或21-80') ping_group = parser.add_argument_group('ping group',description='用于开启存活扫描相关选项') ping_group.add_argument('-p',dest='ping',action='store_true',help='开启存活扫描') ping_group.add_argument('--ARP',dest='ARP',action='store_true',help='启动ARP扫描') ping_group.add_argument('--ICMP',dest='ICMP',action='store_true',help='启动ICMP扫描') ping_group.add_argument('--TCP',dest='TCP',action='store_true',help='启动TCP扫描') ping_group.add_argument('--UDP',dest='UDP',action='store_true',help='启动UDP扫描') port_scan_group = parser.add_argument_group('port scan group',description='用于开启端口扫描相关选项') port_scan_group.add_argument('-s',dest='scan',action='store_true',help='开启端口扫描') port_scan_group.add_argument('--SYN',dest='SYN',action='store_true',help='开启SYN扫描') port_scan_group.add_argument('--ACK',dest='ACK',action='store_true',help='开启ACK扫描') port_scan_group.add_argument('--FIN',dest='FIN',action='store_true',help='开启FIN扫描') port_scan_group.add_argument('--UPORT', dest='UPORT', action='store_true', help='开启UDP端口扫描') utils_group = parser.add_argument_group('utils group',description='用于开启扫描过程中的一些实用选项') utils_group.add_argument('--timeout',dest='timeout',action='store',type=float,help='设置发包超时时间,默认0.5秒') utils_group.add_argument('--retry',dest='retry',action='store',type=int,help='设置发包重试次数,默认不重试') args = parser.parse_args() if not args.ping and not args.scan: print '[-]必须通过-p/-s选项开启一种扫描' print '\n' parser.print_help() exit(1) elif not args.target: print '[-]必须通过--target选项指定扫描的对象' print '\n' parser.print_help() exit(1) if args.ping: if not args.ARP and not args.ICMP and not args.TCP and not args.UDP: args.ICMP = True #若没有指定任何ping扫描方式,则默认选择ICMP扫描 print '[+]没有指定任何ping扫描方式,默认选择ICMP扫描' if args.scan: if not args.SYN and not args.ACK and not args.FIN and not args.UPORT: args.SYN = True #若没有指定任何端口扫描方式,则默认选择SYN扫描 print '[+]没有指定任何端口扫描方式,默认选择SYN扫描' if not args.port: args.port = '1-1024' #若没有指定任何扫描端口,则默认扫描1-1024 print '[+]没有指定任何扫描端口,默认扫描1-1024' return args def parse_target(args): ''' @说明:用于解析如'192.168.1.1,192.168.1.x,...或192.168.1.1-254'格式的IP为单独的IP,用于解析如'21,80,...或21-80'格式的端口为单独的端口 @param: args,一个namespace对象 @return: (ip_list,port_list) ''' pattern1 = r'\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$' pattern2 = r'\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}-\d{1,3}$' pattern3 = r'\d{1,5}$' pattern4 = r'\d{1,5}-\d{1,5}$' ip_list,port_list = None,None if args.target: if re.search(pattern1,args.target): ip_list = args.target.split(',') elif re.match(pattern2,args.target): _split = args.target.split('-') first_ip = _split[0] ip_split = first_ip.split('.') ipdot4 = range(int(ip_split[3]), int(_split[1]) + 1) ip_list = [ip_split[0] + '.' + ip_split[1] + '.' + ip_split[2] + '.' + str(p) for p in ipdot4] else: print '[-]target格式输入有误,请查看帮助!' exit(1) if args.port: if re.match(pattern4,args.port): _split = args.port.split('-') port_list = range(int(_split[0]),int(_split[1])+1) elif re.search(pattern3,args.port): port_list = args.port.split(',') else: print '[-]port格式输入有误,请查看帮助!' exit(1) return ip_list,port_list def main(): ''' @说明:扫描的主程序,首先根据条件创建Ping扫描或端口扫描对象,然后调用相关的扫描方法进行扫描。 ''' args = parse_opt() if args.ping: #是否启动Ping扫描 if not args.timeout and not args.retry: obj_ping = Discovery_Scan(args) elif args.timeout and not args.retry: obj_ping = Discovery_Scan(args,timeout=args.timeout) elif not args.timeout and args.retry: obj_ping = Discovery_Scan(args,retry=args.retry) else: obj_ping = Discovery_Scan(args,args.timeout,args.retry) ip_list = obj_ping.targets[0] if ip_list: #ARP扫描 if args.ARP: for pdst in ip_list: t = threading.Thread(target=obj_ping.arp_scan,args=(pdst,)) t.start() while threading.activeCount() != 1: #避免线程还没有运行完就提前输出不全的结果 time.sleep(1) #ICMP扫描 elif args.ICMP: for dst in ip_list: t = threading.Thread(target=obj_ping.icmp_scan,args=(dst,)) t.start() while threading.activeCount() != 1: #避免线程还没有运行完就提前输出不全的结果 time.sleep(1) #TCP扫描 elif args.TCP: port_list = [80,443,21,22,23,25,53,135,139,137,445,1158,1433,1521,3306,3389,7001,8000,8080,9090] print '[+]请稍等,时间较长!' for dst in ip_list: print '[!]扫描...',dst for port in port_list: t = threading.Thread(target=obj_ping.tcp_scan,args=(dst,port)) t.start() print '[+]正在处理扫描信息.' while threading.activeCount() != 1: #避免线程还没有运行完就提前输出不全的结果 time.sleep(1) if not obj_ping.tcp_info: print '\n' print '=' * 20 print '[+]未发现在线主机.' else: print '\n' print '=' * 20 for ip_a in sorted(obj_ping.tcp_info.keys()): print '[+]主机 %s 在线.' % ip_a #UDP扫描 elif args.UDP: port_list = [7,9.13,15,37,53,67,68,69,135,137,138,139,445,520] print '[+]请稍等,时间较长!' for dst in ip_list: print '[!]扫描...',dst for port in port_list: t = threading.Thread(target=obj_ping.udp_scan,args=(dst,port)) t.start() print '[+]正在处理扫描信息.' while threading.activeCount() != 1: #避免线程还没有运行完就提前输出不全的结果 time.sleep(1) if not obj_ping.udp_info: print '\n' print '=' * 20 print '[+]未发现在线主机.' else: print '\n' print '=' * 20 for ip_a in sorted(obj_ping.udp_info.keys()): print '[+]主机 %s 在线.' % ip_a if args.scan: #是否启动端口扫描 if not args.timeout and not args.retry: obj_port = Port_Scan(args) elif args.timeout and not args.retry: obj_port = Port_Scan(args,timeout=args.timeout) elif not args.timeout and args.retry: obj_port = Port_Scan(args,retry=args.retry) else: obj_port = Port_Scan(args,args.timeout,args.retry) ip_list,port_list = obj_port.targets if ip_list and port_list: if args.SYN: for dst in ip_list: print '[!]扫描...',dst for port in port_list: t = threading.Thread(target=obj_port.syn_port_scan,args=(dst,int(port))) t.start() print '[+]正在处理扫描信息.' while threading.activeCount() != 1: #避免线程还没有运行完就提前输出不全的结果 time.sleep(1) if not obj_port.syn_port_dict: print '\n' print '=' * 20 print '[+]未发现开放TCP端口.' else: print '\n' print '=' * 20 for k,v in obj_port.syn_port_dict.items(): print '[+]主机 %s 开放的TCP端口有:%s' % (k,str(v)) elif args.ACK: pass #基本不能使用 elif args.FIN: pass #基本不能使用 elif args.UPORT: for dst in ip_list: print '[!]扫描...',dst for port in port_list: t = threading.Thread(target=obj_port.udp_port_scan,args=(dst,int(port))) t.start() print '[+]正在处理扫描信息.' while threading.activeCount() != 1: #避免线程还没有运行完就提前输出不全的结果 time.sleep(1) if not obj_port.udp_port_dict: print '\n' print '=' * 20 print '[+]未发现开放UDP端口.' else: print '\n' print '=' * 20 for k,v in obj_port.udp_port_dict.items(): print '[+]主机 %s 开放的UDP端口有:%s' % (k,str(v)) if __name__ == '__main__': try: start_time = time.time() main() stop_time = time.time() print '[+]总共耗时'+str(stop_time-start_time)+'秒.' except Exception,e: print '[-]执行出错,具体错误见下面信息.' print e
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