我们不仅可以通过相应工具识别目标主机上的服务指纹信息,还可以进行系统指纹信息识别。常见的系统指纹信息有操作系统类型、系统版本和内核版本等。本文介绍系统识别的方法。
创新互联是一家以网络技术公司,为中小企业提供网站维护、网站设计、网站制作、网站备案、服务器租用、域名注册、软件开发、微信小程序等企业互联网相关业务,是一家有着丰富的互联网运营推广经验的科技公司,有着多年的网站建站经验,致力于帮助中小企业在互联网让打出自已的品牌和口碑,让企业在互联网上打开一个面向全国乃至全球的业务窗口:建站来电联系:18982081108
在Nmap工具中,提供了一些选项可以用来实施系统识别。下面介绍具体的实现方法。
在Nmap工具中提供了一个-O选项,可以用来识别操作系统。用于识别操作系统的语法格式如下:
nmap -O [host]
其中,-O选项用于识别操作系统类型。注意,这里的选项-O是大写字母O,不是0。
识别目标主机192.168.33.152的操作系统类型。执行命令如下:
- root@daxueba:~# nmap -O 192.168.33.152
- Starting Nmap 7.70 ( https://nmap.org ) at 2021-08-02 15:22 CST
- Nmap scan report for 192.168.33.152 (192.168.33.152)
- Host is up (0.00036s latency).
- Not shown: 997 closed ports
- PORT STATE SERVICE
- 21/tcp open ftp
- 22/tcp open ssh
- 80/tcp open http
- MAC Address: 00:0C:29:FD:58:4B (VMware) #MAC地址
- Device type: general purpose #设备类型
- Running: Linux 3.X|4.X #运行的系统
- OS CPE: cpe:/o:linux:linux_kernel:3 cpe:/o:linux:linux_kernel:4 #操作系统中央处理单元
- OS details: Linux 3.2 - 4.9 #操作系统详细信息
- Network Distance: 1 hop #网络距离,即从源到目标经过的网络节点
- OS detection performed. Please report any incorrect results at https://nmap.
- org/submit/ .
- Nmap done: 1 IP address (1 host up) scanned in 1.86 seconds
从以上输出信息中可以看到,目标主机的操作系统类型为Linux,内核版本为3.2。如果Nmap不能够判断出目标操作系统的话,将会提供指纹信息给Nmap的系统数据库。例如,识别目标主机10.10.1.11的操作系统。执行命令如下:
- root@daxueba:~# nmap -O 10.10.1.11
- Starting Nmap 7.70 ( https://nmap.org ) at 2021-08-02 15:29 CST
- ……
- No exact OS matches for host (If you know what OS is running on it, see http://nmap.org/submit/ ).
- TCP/IP fingerprint:
- OS:SCAN(V=5.00%D=12/16%OT=3001%CT=1%CU=32781%PV=Y%DS=1%G=Y%M=00204A%TM=4B29
- OS:4048%P=i686-pc-windows-windows)SEQ(CI=I%III=I%TS=U)OPS(O1=M400%O2=%O3=%O4
- OS:=%O5=%O6=)OPS(O1=M400%O2=M400%O3=%O4=%O5=%O6=)OPS(O1=%O2=M400%O3=M400%O4
- OS:=%O5=%O6=)OPS(O1=%O2=%O3=M400%O4=%O5=%O6=)OPS(O1=M400%O2=%O3=M400%O4=%O5
- OS:=%O6=)WIN(W1=7FF%W2=0%W3=0%W4=0%W5=0%W6=0)WIN(W1=7FF%W2=7FF%W3=0%W4=0%W5
- OS:=0%W6=0)WIN(W1=0%W2=7FF%W3=7FF%W4=0%W5=0%W6=0)WIN(W1=0%W2=0%W3=7FF%W4=0%
- OS:W5=0%W6=0)WIN(W1=7FF%W2=0%W3=7FF%W4=0%W5=0%W6=0)ECN(R=Y%DF=Y%T=40%W=0%O=
- OS:%CC=N%Q=)T1(R=Y%DF=Y%T=40%S=O%A=S+%F=AS%RD=0%Q=)T1(R=Y%DF=Y%T=40%S=O%A=O
- OS:%F=AS%RD=0%Q=)T1(R=Y%DF=Y%T=40%S=Z%A=S+%F=AR%RD=0%Q=)T2(R=Y%DF=Y%T=40%W=
- OS:0%S=Z%A=S+%F=AR%O=%RD=0%Q=)T3(R=Y%DF=Y%T=40%W=0%S=Z%A=S+%F=AR%O=%RD=0%Q=
- OS:)T4(R=Y%DF=Y%T=40%W=0%S=A%A=Z%F=R%O=%RD=0%Q=)T5(R=Y%DF=Y%T=40%W=0%S=Z%A=
- OS:S+%F=AR%O=%RD=0%Q=)T6(R=Y%DF=Y%T=40%W=0%S=A%A=Z%F=R%O=%RD=0%Q=)T7(R=Y%DF
- OS:=Y%T=40%W=0%S=Z%A=S+%F=AR%O=%RD=0%Q=)U1(R=Y%DF=Y%T=40%IPL=38%UN=0%RIPL=G
- OS:%RID=G%RIPCK=G%RUCK=G%RUD=G)IE(R=Y%DFI=S%T=40%CD=S)
以上输出信息就是Nmap向数据库提交的指纹信息,这些指纹信息是自动生成的,并且标识了目标系统的操作系统。
当扫描多个主机时,可以使用--osscan-limit选项来指定识别特定主机的操作系统类型。这样,使用该选项进行操作系统识别可以节约大量的时间。指定识别主机的操作系统类型语法格式如下:
- nmap -O --osscan-limit [host]
其中,--osscan-limit选项表示针对指定的目标进行操作系统检测。如果发现一个打开和关闭的TCP端口时,操作系统检测会更有效。使用该选项,Nmap只对满足这个条件的主机进行操作系统检测。这样可以节约时间,特别是在使用-P0扫描多个主机时。该选项仅在使用-O或-A进行操作系统检测时起作用。
使用Nmap针对指定的目标进行操作系统检测。执行命令如下:
- root@daxueba:~# nmap -P0 192.168.1.0/24 -O --osscan-limit
- Starting Nmap 7.70 ( https://nmap.org ) at 2021-08-02 16:02 CST
- Nmap scan report for 192.168.1.1 (192.168.1.1)
- Host is up (0.00073s latency).
- Not shown: 994 closed ports
- PORT STATE SERVICE
- 21/tcp open ftp
- 80/tcp open http
- 445/tcp open microsoft-ds
- 5678/tcp open rrac
- 8080/tcp open http-proxy
- 52869/tcp open unknown
- MAC Address: 70:85:40:53:E0:35 (Unknown)
- Device type: general purpose
- Running: Linux 3.X|4.X
- OS CPE: cpe:/o:linux:linux_kernel:3 cpe:/o:linux:linux_kernel:4
- OS details: Linux 3.2 - 4.9 #操作系统详细信息
- Network Distance: 1 hop
- Nmap scan report for kdkdahjd61y369j (192.168.1.3)
- Host is up (0.000085s latency).
- All 1000 scanned ports on kdkdahjd61y369j (192.168.1.3) are filtered
- MAC Address: 1C:6F:65:C8:4C:89 (Giga-byte Technology)
- Nmap scan report for test-pc (192.168.1.5)
- Host is up (0.00047s latency).
- Not shown: 982 closed ports
- PORT STATE SERVICE
- 21/tcp open ftp
- 22/tcp open ssh
- 80/tcp open http
- 135/tcp open msrpc
- 139/tcp open netbios-ssn
- 443/tcp open https
- 445/tcp open microsoft-ds
- 902/tcp open iss-realsecure
- 912/tcp open apex-mesh
- 1433/tcp open ms-sql-s
- 2383/tcp open ms-olap4
- 5357/tcp open wsdapi
- 49152/tcp open unknown
- 49153/tcp open unknown
- 49154/tcp open unknown
- 49155/tcp open unknown
- 49157/tcp open unknown
- 49158/tcp open unknown
- MAC Address: 00:0C:29:21:8C:96 (VMware)
- Device type: general purpose
- Running: Microsoft Windows 7|2008|8.1
- OS CPE: cpe:/o:microsoft:windows_7::- cpe:/o:microsoft:windows_7::sp1
- cpe:/o:microsoft:windows_server_2008::sp1 cpe:/o:microsoft:windows_server_
- 2008:r2 cpe:/o:microsoft:windows_8 cpe:/o:microsoft:windows_8.1
- OS details: Microsoft Windows 7 SP0 - SP1, Windows Server 2008 SP1, Windows
- Server 2008 R2, Windows 8, or Windows 8.1 Update 1 #操作系统详细信息
- Network Distance: 1 hop
- Nmap scan report for 192.168.1.6 (192.168.1.6)
- Host is up (0.00057s latency).
- Not shown: 977 closed ports
- PORT STATE SERVICE
- 21/tcp open ftp
- 22/tcp open ssh
- 23/tcp open telnet
- 25/tcp open smtp
- 53/tcp open domain
- 80/tcp open http
- 111/tcp open rpcbind
- 139/tcp open netbios-ssn
- 445/tcp open microsoft-ds
- 512/tcp open exec
- 513/tcp open login
- 514/tcp open shell
- 1099/tcp open rmiregistry
- 1524/tcp open ingreslock
- 2049/tcp open nfs
- 2121/tcp open ccproxy-ftp
- 3306/tcp open mysql
- 5432/tcp open postgresql
- 5900/tcp open vnc
- 6000/tcp open X11
- 6667/tcp open irc
- 8009/tcp open ajp13
- 8180/tcp open unknown
- MAC Address: 00:0C:29:3E:84:91 (VMware)
- Device type: general purpose
- Running: Linux 2.6.X
- OS CPE: cpe:/o:linux:linux_kernel:2.6
- OS details: Linux 2.6.9 - 2.6.33 #操作系统详细信息
- Network Distance: 1 hop
- Nmap scan report for kali (192.168.1.9)
- Host is up (0.00093s latency).
- All 1000 scanned ports on kali (192.168.1.9) are closed
- MAC Address: 00:0C:29:6C:C4:92 (VMware)
- Nmap scan report for daxueba (192.168.1.4)
- Host is up (0.000010s latency).
- All 1000 scanned ports on daxueba (192.168.1.4) are closed
- OS detection performed. Please report any incorrect results at
- https://nmap.org/submit/ .
- Nmap done: 256 IP addresses (6 hosts up) scanned in 7.64 seconds
从以上输出信息可以看到,如果探测到目标主机上存在开放的端口,则推测出了其操作系统类型;如果目标主机上不存在开放的端口,则无法推测其操作系统类型。
当Nmap无法确定所探测的操作系统时,会尽可能地提供最相近的匹配。为了对目标系统推测得更准确,可以使用--osscan-guess或--fuzzy选项来实现。语法格式如下:
- nmap -O --osscan-guess;--fuzzy [host]
其中,--osscan-guess;--fuzzy选项用于推测操作系统检测结果,将以百分比的方式给出对操作系统信息的猜测。当Nmap无法确定所检测的操作系统时,会尽可能地提供最相近的匹配。Nmap默认进行这种匹配,使用任意一个选项将使得Nmap的推测更加有效。
推测目标主机www.163.com的操作系统类型。执行命令如下:
- root@daxueba:~# nmap -O --osscan-guess www.163.com
- Starting Nmap 7.70 ( https://nmap.org ) at 2021-08-02 16:08 CST
- Nmap scan report for www.163.com (124.163.204.105)
- Host is up (0.015s latency).
- Other addresses for www.163.com (not scanned): 2408:8726:5100::4f
- rDNS record for 124.163.204.105: 105.204.163.124.in-addr.arpa
- Not shown: 955 closed ports
- PORT STATE SERVICE
- 80/tcp open http
- 81/tcp open hosts2-ns
- 82/tcp open xfer
- 84/tcp open ctf
- 88/tcp open kerberos-sec
- 135/tcp filtered msrpc
- 139/tcp filtered netbios-ssn
- 443/tcp open https
- 445/tcp filtered microsoft-ds
- ……省略部分内容
- Device type: general purpose|firewall|media device|phone|broadband router security-misc
- Running (JUST GUESSING): Linux 3.X|2.6.X|4.X (92%), IPCop 2.X (91%), Tiandy
- embedded (91%), Google Android 5.X (90%), D-Link embedded (90%), Draytek
- embedded (89%)
- OS CPE: cpe:/o:linux:linux_kernel:3.2 cpe:/o:linux:linux_kernel:2.6.32
- cpe:/o:ipcop:ipcop:2.0 cpe:/o:linux:linux_kernel:4.9 cpe:/o:google:
- android:5.0.1 cpe:/h:dlink:dsl-2890al cpe:/o:linux:linux_kernel:2.6.25.20
- cpe:/h:draytek:vigor_2960
- Aggressive OS guesses: Linux 3.2 (92%), IPCop 2.0 (Linux 2.6.32) (91%), Linux
- 2.6.32 (91%), Linux 4.9 (91%), Tiandy NVR (91%), Android 5.0.1 (90%), Linux
- 3.18 (90%), D-Link DSL-2890AL ADSL router (90%), OpenWrt Kamikaze 8.09 (Linux
- 2.6.25.20) (90%), Linux 2.6.18 - 2.6.22 (89%)
- No exact OS matches for host (test conditions non-ideal).
- Network Distance: 9 hops
- OS detection performed. Please report any incorrect results at https://nmap.org/submit/ .
- Nmap done: 1 IP address (1 host up) scanned in 5.65 seconds
以上输出信息显示了目标主机可能使用的操作系统列表。这里列举可能的系统类型,并以百分比形式显示每种类型的概率。从输出结果显示的比例中可以看到,目标主机的操作系统类型可能是Linux 3.2。
Ping是Windows、UNIX和Linux系统下的一个命令,使用该命令可以检查网络是否连通。如果目标主机正确响应的话,在响应包中将包括有对应的TTL值。TTL是Time To Live(生成时间)的缩写,该字段指定IP包被路由器丢弃之前允许通过的最大网段数量。其中,不同操作系统类型响应的TTL值不同。所以我们可以使用Ping命令进行系统识别。下面介绍使用Ping命令实施系统识别的方法。
为了能够快速地确定一个目标系统的类型,下面给出了一个操作系统初始TTL值列表,如表1所示。
表1 各个操作系统的初始TTL值
使用Ping测试目标主机(192.168.33.152)的操作系统类型(该目标主机的操作系统类型为Linux)。执行命令如下:
- root@daxueba:~# ping 192.168.33.152
- PING 192.168.33.152 (192.168.33.152) 56(84) bytes of data.
- 64 bytes from 192.168.33.152: icmp_seq=1 ttl=64 time=0.242 ms
- 64 bytes from 192.168.33.152: icmp_seq=2 ttl=64 time=0.431 ms
- 64 bytes from 192.168.33.152: icmp_seq=3 ttl=64 time=0.431 ms
- 64 bytes from 192.168.33.152: icmp_seq=4 ttl=64 time=0.440 ms
从输出的信息可以看到,响应包中的TTL值为64。根据前面列出的表格6.1,可以看到这是Linux操作系统。
使用Ping测试目标主机(192.168.33.229)的操作系统类型(该目标主机的操作系统类型为Windows 7)。执行命令如下:
- root@daxueba:~# ping 192.168.33.229
- PING 192.168.33.229 (192.168.33.229) 56(84) bytes of data.
- 64 bytes from 192.168.33.229: icmp_seq=1 ttl=128 time=1.57 ms
- 64 bytes from 192.168.33.229: icmp_seq=2 ttl=128 time=1.01 ms
- 64 bytes from 192.168.33.229: icmp_seq=3 ttl=128 time=0.276 ms
- 64 bytes from 192.168.33.229: icmp_seq=4 ttl=128 time=1.52 ms
从输出的信息可以看到,该响应包中的TTL值为128。由此可以说明,这是一个Windows操作系统。
xProbe2是一款远程主机操作系统探查工具,该工具通过ICMP协议来获得指纹。xProbe2通过模糊矩阵统计分析主动探测数据报文对应的ICMP数据报特征,进而探测得到远端操作系统的类型。下面介绍使用xProbe2工具实施操作系统指纹识别的方法。使用xProbe2工具实施系统识别的语法格式如下:
- xProbe2 [host]
使用xProbe2工具对目标主机www.163.com实施系统识别。执行命令如下:
- root@Kali:~# xprobe2 www.163.com
- Xprobe2 v.0.3 Copyright (c) 2002-2005 fyodor@o0o.nu, ofir@sys-security.com,meder@o0o.nu
- [+] Target is www.163.com #目标地址
- [+] Loading modules. #正在加载模块
- [+] Following modules are loaded: #被加载的模块
- [x] [1] ping:icmp_ping - ICMP echo discovery module
- [x] [2] ping:tcp_ping - TCP-based ping discovery module
- [x] [3] ping:udp_ping - UDP-based ping discovery module
- [x] [4] infogather:ttl_calc - TCP and UDP based TTL distance calculation
- [x] [5] infogather:portscan - TCP and UDP PortScanner
- [x] [6] fingerprint:icmp_echo - ICMP Echo request fingerprinting module
- [x] [7] fingerprint:icmp_tstamp - ICMP Timestamp request fingerprinting module
- [x] [8] fingerprint:icmp_amask - ICMP Address mask request fingerprinting module
- [x] [9] fingerprint:icmp_port_unreach - ICMP port unreachable fingerprinting module
- [x] [10] fingerprint:tcp_hshake - TCP Handshake fingerprinting module
- [x] [11] fingerprint:tcp_rst - TCP RST fingerprinting module
- [x] [12] fingerprint:smb - SMB fingerprinting module
- [x] [13] fingerprint:snmp - SNMPv2c fingerprinting module
- [+] 13 modules registered
- [+] Initializing scan engine #初始化扫描引擎
- [+] Running scan engine #正在实施扫描
- [-] ping:tcp_ping module: no closed/open TCP ports known on 124.163.204.105.
- Module test failed
- [-] ping:udp_ping module: no closed/open UDP ports known on 124.163.204.105.
- Module test failed
- [-] No distance calculation. 124.163.204.105 appears to be dead or no ports known
- [+] Host: 124.163.204.105 is up (Guess probability: 50%)#主机是活动的
- [+] Target: 124.163.204.105 is alive. Round-Trip Time: 0.01503 sec
- [+] Selected safe Round-Trip Time value is: 0.03007 sec
- [-] fingerprint:tcp_hshake Module execution aborted (no open TCP ports known)
- [-] fingerprint:smb need either TCP port 139 or 445 to run
- [-] fingerprint:snmp: need UDP port 161 open
- [+] Primary guess: #主要猜测
- [+] Host 124.163.204.105 Running OS: "Linux Kernel 2.4.19" (Guess
- probability: 100%)
- [+] Other guesses: #其他猜测
- [+] Host 124.163.204.105 Running OS: "Linux Kernel 2.4.20" (Guess
- probability: 100%)
- [+] Host 124.163.204.105 Running OS: "Linux Kernel 2.4.21" (Guess
- probability: 100%)
- [+] Host 124.163.204.105 Running OS: "Linux Kernel 2.4.22" (Guess
- probability: 100%)
- [+] Host 124.163.204.105 Running OS: "Linux Kernel 2.4.23" (Guess
- probability: 100%)
- [+] Host 124.163.204.105 Running OS: "Linux Kernel 2.4.24" (Guess
- probability: 100%)
- [+] Host 124.163.204.105 Running OS: "Linux Kernel 2.4.25" (Guess
- probability: 100%)
- [+] Host 124.163.204.105 Running OS: "Linux Kernel 2.4.26" (Guess
- probability: 100%)
- [+] Host 124.163.204.105 Running OS: "Linux Kernel 2.4.27" (Guess
- probability: 100%)
- [+] Host 124.163.204.105 Running OS: "Linux Kernel 2.4.28" (Guess
- probability: 100%)
- [+] Cleaning up scan engine
- [+] Modules deinitialized
- [+] Execution completed.
从输出的信息中可以看到,通过xProbe2工具成功解析出了目标主机的IP地址,并且识别出了其操作系统类型。其中,目标主机的IP地址为124.163.204.105,操作系统类型为Linux,内核版本在2.4.19~2.4.28之间。
xProbe2工具在NAT模式下存在Bug,扫描后会出现HP的位置或者直接报错,具体如下:
- root@Kali:~# xprobe2 www.163.com
- Xprobe2 v.0.3 Copyright (c) 2002-2005 fyodor@o0o.nu, ofir@sys-security.com,meder@o0o.nu
- [+] Target is www.163.com
- [+] Loading modules.
- [+] Following modules are loaded:
- [x] [1] ping:icmp_ping - ICMP echo discovery module
- [x] [2] ping:tcp_ping - TCP-based ping discovery module
- [x] [3] ping:udp_ping - UDP-based ping discovery module
- [x] [4] infogather:ttl_calc - TCP and UDP based TTL distance calculation
- [x] [5] infogather:portscan - TCP and UDP PortScanner
- [x] [6] fingerprint:icmp_echo - ICMP Echo request fingerprinting module
- [x] [7] fingerprint:icmp_tstamp - ICMP Timestamp request fingerprinting module
- [x] [8] fingerprint:icmp_amask - ICMP Address mask request fingerprinting module
- [x] [9] fingerprint:icmp_port_unreach - ICMP port unreachable
- fingerprinting module
- [x] [10] fingerprint:tcp_hshake - TCP Handshake fingerprinting module
- [x] [11] fingerprint:tcp_rst - TCP RST fingerprinting module
- [x] [12] fingerprint:smb - SMB fingerprinting module
- [x] [13] fingerprint:snmp - SNMPv2c fingerprinting module
- [+] 13 modules registered
- [+] Initializing scan engine
- [+] Running scan engine
- [-] ping:tcp_ping module: no closed/open TCP ports known on 124.163.204.105.
- Module test failed
- [-] ping:udp_ping module: no closed/open UDP ports known on 124.163.204.105.
- Module test failed
- [-] No distance calculation. 124.163.204.105 appears to be dead or no ports known
- [+] Host: 124.163.204.105 is up (Guess probability: 50%)
- [+] Target: 124.163.204.105 is alive. Round-Trip Time: 0.01528 sec
- [+] Selected safe Round-Trip Time value is: 0.03056 sec
- [-] fingerprint:tcp_hshake Module execution aborted (no open TCP ports known)
- [-] fingerprint:smb need either TCP port 139 or 445 to run
- [-] fingerprint:snmp: need UDP port 161 open
- [+] Primary guess:
- [+] Host 124.163.204.105 Running OS: "HP JetDirect ROM G.07.02 EEPROM G.07.17" (Guess probability: 83%)
- [+] Other guesses:
- [+] Host 124.163.204.105 Running OS: "HP JetDirect ROM G.07.02 EEPROM G.07.20" (Guess probability: 83%)
- [+] Host 124.163.204.105 Running OS: "HP JetDirect ROM G.07.02 EEPROM G.08.04" (Guess probability: 83%)
- [+] Host 124.163.204.105 Running OS: "HP JetDirect ROM G.07.19 EEPROM G.07.20" (Guess probability: 83%)
- [+] Host 124.163.204.105 Running OS: "HP JetDirect ROM G.07.19 EEPROM G.08.03" (Guess probability: 83%)
- [+] Host 124.163.204.105 Running OS: "HP JetDirect ROM G.07.19 EEPROM G.08.04" (Guess probability: 83%)
- [+] Host 124.163.204.105 Running OS: "HP JetDirect ROM G.08.08 EEPROM G.08.04" (Guess probability: 83%)
- [+] Host 124.163.204.105 Running OS: "HP JetDirect ROM G.08.21 EEPROM G.08.21" (Guess probability: 83%)
- [+] Host 124.163.204.105 Running OS: "HP JetDirect ROM H.07.15 EEPROM H.08.20" (Guess probability: 83%)
- [+] Host 124.163.204.105 Running OS: "HP JetDirect ROM G.06.00 EEPROM G.06.00" (Guess probability: 83%)
- [+] Cleaning up scan engine
- [+] Modules deinitialized
- [+] Execution completed.
从以上输出的信息中可以看到,执行结果出错了(HP JetDirect ROM G.07.02 EEPROM G.07.17)。
在Kali Linux的新版本中,xProbe2工具运行后,测试的结果中操作系统类型显示为乱码。具体如下:
- [+] Primary guess:
- [+] Host 192.168.1.8 Running OS: ????U (Guess probability: 100%)
- [+] Other guesses:
- [+] Host 192.168.1.8 Running OS: ?????U (Guess probability: 100%)
- [+] Host 192.168.1.8 Running OS: ?????U (Guess probability: 100%)
- [+] Host 192.168.1.8 Running OS: ?????U (Guess probability: 100%)
- [+] Host 192.168.1.8 Running OS: ????U (Guess probability: 100%)
- [+] Host 192.168.1.8 Running OS: ?????U (Guess probability: 100%)
- [+] Host 192.168.1.8 Running OS: ????U (Guess probability: 100%)
- [+] Host 192.168.1.8 Running OS: ?????U (Guess probability: 100%)
- [+] Host 192.168.1.8 Running OS: ?????U (Guess probability: 100%)
- [+] Host 192.168.1.8 Running OS: ?????U (Guess probability: 100%)
- [+] Cleaning up scan engine
- [+] Modules deinitialized
- [+] Execution completed.
p0f是一款用于识别远程操作系统的工具,该工具与前面介绍的其他工具不同,它是一个完全被动地识别操作系统指纹信息的工具,不会直接作用于目标系统。当启动该工具后,即可监听网络中的所有数据包。通过分析监听到的数据包,即可找出与系统相关的信息。下面介绍使用p0f工具来实施操作系统指纹识别的方法。
使用p0f工具对目标主机实施系统识别。执行命令如下:
1)启动p0f工具。执行命令如下:
- root@daxueba:~# p0f
- --- p0f 3.09b by Michal Zalewski
--- - [+] Closed 1 file descriptor.
- [+] Loaded 322 signatures from '/etc/p0f/p0f.fp'.
- [+] Intercepting traffic on default interface 'eth0'.
- [+] Default packet filtering configured [+VLAN].
- [+] Entered main event loop.
从以上输出信息中可以看到,p0f工具仅显示了几行信息,无法捕获到其他信息。但是,p0f会一直处于监听状态。
2)此时,当有其他主机在网络中产生数据流量的话,将会被p0f工具监听到。例如,在另一台主机上通过浏览器访问一个站点,然后返回到p0f所在的终端,将看到如下信息:
- .-[ 192.168.1.4/38934 -> 65.200.22.161/80 (http request) ]- #HTTP请求
- | client = 192.168.1.4/38934 #客户端
- | app = Safari 5.1-6 #应用
- | lang = English #语言
- | params = dishonest #程序
- | raw_sig = 1:Host,User-Agent,Accept=[*/*],Accept-Language=[en-US,en;q=0.5],Accept-Encoding=[gzip, deflate],?Cache-Control,Pragma=[no-cache],Connection=[keep-alive]:Accept-Charset,Keep-Alive:Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Firefox/60.0 #数据内容
- ----
- .-[ 192.168.1.4/38934 -> 65.200.22.161/80 (uptime) ]-
- | server = 65.200.22.161/80 #服务器
- | uptime = 30 days 0 hrs 22 min (modulo 45 days) #时间
- | raw_freq = 1048.46 Hz #频率
- ----
- .-[ 192.168.1.4/38934 -> 65.200.22.161/80 (http response) ]-
- | server = 65.200.22.161/80
- | app = ???
- | lang = none
- | params = none
- | raw_sig = 1:Content-Type,?Content-Length,?Last-Modified,?ETag,Accept-Ranges=[bytes],Server,X-Amz-Cf-Id=[X7nIiIIBBeQOTeLSHRH3U4SM6xDHfgwK1EaKf8bdyemtuUoR8JK9Xg==],?Cache-Control,Date,Connection=[keep-alive]:Keep-Alive:AmazonS3
- ----
- .-[ 192.168.1.4/32854 -> 52.27.184.151/443 (syn) ]-
- | client = 192.168.1.4/32854
- | os = Linux 3.11 and newer
- | dist = 0
- | params = none
- | raw_sig = 4:64+0:0:1460:mss*20,7:mss,sok,ts,nop,ws:df,id+:0
- ----
- .-[ 192.168.1.4/32854 -> 52.27.184.151/443 (host change) ]-
- | client = 192.168.1.4/32854
- | reason = tstamp port
- | raw_hits = 0,1,1,1
- ----
- .-[ 192.168.1.4/32854 -> 52.27.184.151/443 (mtu) ]-
- | client = 192.168.1.4/32854
- | link = Ethernet or modem
- | raw_mtu = 1500
- ----
- .-[ 192.168.1.4/32856 -> 52.27.184.151/443 (syn) ]-
- | client = 192.168.1.4/32856
- | os = Linux 3.11 and newer
- | dist = 0
- | params = none
- | raw_sig = 4:64+0:0:1460:mss*20,7:mss,sok,ts,nop,ws:df,id+:0
- ----
以上输出的信息,就是执行监听到客户端访问的数据信息。从以上输出的信息可以看到,探测到客户端的操作系统类型为Linux 3.11或更新的内核版本。
本文标题:网络扫描:系统识别
网站链接:http://www.stwzsj.com/qtweb/news30/6230.html
网站建设、网络推广公司-创新互联,是专注品牌与效果的网站制作,网络营销seo公司;服务项目有等
声明:本网站发布的内容(图片、视频和文字)以用户投稿、用户转载内容为主,如果涉及侵权请尽快告知,我们将会在第一时间删除。文章观点不代表本网站立场,如需处理请联系客服。电话:028-86922220;邮箱:631063699@qq.com。内容未经允许不得转载,或转载时需注明来源: 创新互联