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Trojan ports are commonly used by Trojan horse programs to connect to clients. During an outbreak, Worry-Free Business Security blocks the following port numbers that Trojan programs may use.

Table 1. Trojan Ports

Port Number

Trojan Horse Program

Port Number

Trojan Horse Program

23432

Asylum

31338

Net Spy

31337

Back Orifice

31339

Net Spy

18006

Back Orifice 2000

139

Nuker

12349

Bionet

44444

Prosiak

6667

Bionet

8012

Ptakks

80

Codered

7597

Qaz

21

DarkFTP

4000

RA

3150

Deep Throat

666

Ripper

2140

Deep Throat

1026

RSM

10048

Delf

64666

RSM

23

EliteWrap

22222

Rux

6969

GateCrash

11000

Senna Spy

7626

Gdoor

113

Shiver

10100

Gift

1001

Silencer

21544

Girl Friend

3131

SubSari

7777

GodMsg

1243

Sub Seven

6267

GW Girl

6711

Sub Seven

25

Jesrto

6776

Sub Seven

25685

Moon Pie

27374

Sub Seven

68

Mspy

6400

Thing

1120

Net Bus

12345

Valvo line

7300

Net Spy

1234

Valvo line