如果是win9x/me就在windows目录下的services文件
如果是NT/2000,在WINNT/system32/drivers/etc/目录下的services文件
services这个文件列出了所有的端口号和对应的服务。如果要禁用某个服务，在前面加上＃号注释掉就以了。
常见木马端口列表
15=NETSTAT PORT
21=Blade Runner, Doly Trojan, Fore, FTP trojan, Invisible FTP, Larva, ebEx, WinCrash
22=SSH PORT
23=Tiny Telnet Server
25=Shtrilitz Stealth, Terminator, WinPC, WinSpy, Kuang2 0.17A-0.30, Antigen, Email Password Sender, Haebu Coceda, Kuang2, ProMail trojan, Tapiras
31=Agent 31, Hackers Paradise, Masters Paradise
41=DeepThroat
53=DOMAIN PORT
58=DMSetup
63=WHOIS PORT
79=Firehotcker
80=Executor 110=ProMail trojan
90=DNS PORT
101=HOSTNAME PORT
110=POP3 PORT
121=JammerKillah
137=NETBIOS Name Service PORT
138=NETBIOS Datagram Service PORT
139=NETBIOS Session Service PORT
194=IRC PORT
406=IMSP PORT
421=TCP Wrappers
456=Hackers Paradise
531=Rasmin
555=Ini-Killer, Phase Zero, Stealth Spy
666=Attack FTP, Satanz Backdoor
911=Dark Shadow
999=DeepThroat
1001=Silencer, WebEx
1011=Doly Trojan
1012=Doly Trojan
1024=NetSpy
1045=Rasmin
1090=Xtreme
1095=Rat
1097=Rat
1098=Rat
1099=Rat
1170=Psyber Stream Server
1170=Voice
1234=Ultors Trojan
1243=BackDoor-G, SubSeven
1245=VooDoo Doll
1349=BO DLL
1492=FTP99CMP
1600=Shivka-Burka
1807=SpySender
1080=SOCKS PORT
1981=Shockrave
1999=BackDoor 1.00-1.03
2001=Trojan Cow
2023=Ripper
2115=Bugs
2140=Deep Throat
2140=The Invasor
2565=Striker
2583=WinCrash
2801=Phineas Phucker
3024=WinCrash
3129=Masters Paradise
3150=Deep Throat, The Invasor
3700=Portal of Doom
4092=WinCrash
4567=File Nail
4590=ICQTrojan
5000=Bubbel, Back Door Setup, Sockets de Troie
5001=Back Door Setup, Sockets de Troie
5321=Firehotcker
5400=Blade Runner
5401=Blade Runner
5402=Blade Runner
5550=JAPAN Trojan-xtcp
5555=ServeMe
5556=BO Facil
5557=BO Facil
5569=Robo-Hack
5742=WinCrash
6400=The Thing
6666=IRC SERVER PORT
6667=IRC CHAT PORT
6670=DeepThroat
6711=SubSeven
6771=DeepThroat
6776=BackDoor-G, SubSeven
6939=Indoctrination
6969=GateCrasher
6969=Priority
7000=Remote Grab
7300=NetMonitor
7301=NetMonitor
7306=NetMonitor
7307=NetMonitor
7308=NetMonitor
7626=G_Client
7789=Back Door Setup, ICKiller
9872=Portal of Doom
9873=Portal of Doom
9874=Portal of Doom
9875=Portal of Doom
9989=iNi-Killer
10067=Portal of Doom
10167=Portal of Doom
10520=Acid Shivers
10607=Coma
11000=Senna Spy
11223=Progenic trojan
12223=Hack?9 KeyLogger
12345=GabanBus, NetBus, Pie Bill Gates, X-bill
12346=GabanBus, NetBus, X-bill
12361=Whack-a-mole
12362=Whack-a-mole
12631=WhackJob
13000=Senna Spy
16969=Priority
20001=Millennium
20034=NetBus 2 Pro
21544=GirlFriend
22222=Prosiak
23456=Evil FTP, Ugly FTP
26274=Delta Source
29891=The Unexplained
30029=AOL Trojan 30100=NetSphere 1.27a, NetSphere 1.31
30101=NetSphere 1.31, NetSphere 1.27a
30102=NetSphere 1.27a, NetSphere 1.31
30103=NetSphere 1.31
30303=Sockets de Troie
31337=Baron Night, BO client, BO2, Bo Facil, BackFire, Back Orifice, DeepBO
31338=NetSpy DK 31338=Back Orifice, DeepBO
31339=NetSpy DK
31666=BOWhack
31785=Hack Attack
31787=Hack Attack
31789=Hack Attack
31791=Hack Attack
33333=Prosiak
34324=BigGluck, TN
40412=The Spy
40421=Agent 40421, Masters Paradise
40422=Masters Paradise
40423=Masters Paradise
40426=Masters Paradise
47262=Delta Source
50505=Sockets de Troie
50766=Fore
53001=Remote Windows Shutdown
54321=School Bus .69-1.11
60000=Deep Throat
61466=Telecommando
65000=Devil
69123=ShitHeep
注：现在的木马都具有改变监听端口的功能，所以以上的缺省端口仅供参考之用。