Exterminate It! Antimalware


Known threats:700,086 Last Update:March 16, 12:51


I ran the free version on my system that I knew had something on it, nothing would detect what was going on but your program did! I instantly bought it and now it's clean!

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Peter C.


Aliases of Back.Orifice (AKA):

[Kaspersky]Backdoor.BO.a2, Backdoor.BO2K.11.a, Backdoor.BO2K.config, Backdoor.BO2K.server, Backdoor.BO2K.workspace, Backdoor.BO2K.10, Backdoor.BO2K.111, Backdoor.BO2K.plugin.Aes.a, Backdoor.BO2K.plugin.Control, Backdoor.BO2K.plugin.EncNull, Backdoor.BO2K.plugin.GetFile, Backdoor.BO2K.plugin.InetCmd, Backdoor.BO2K.plugin.Interface, Backdoor.BO2K.plugin.IoTcp, Backdoor.BO2K.plugin.IoUdp, Backdoor.BO2K.plugin.Legacy, Backdoor.BO2K.plugin.RegFile, Backdoor.BO2K.plugin.ScanPw, Backdoor.BO2K.plugin.SendKeys, Backdoor.BO2K.plugin.Simpleauth, Backdoor.BO2K.plugin.System, Backdoor.BO2K.plugin.Hijack, Backdoor.BO.Client, Backdoor.BO.a, Backdoor.BO.d, Backdoor.BO2K.plugin.SimpleNet, Backdoor.BO2K.112, Backdoor.BO2K.112.plugin, Backdoor.SdBot.at, Trojan.Win32.GotoOne, Backdoor.Win32.BO.a
[Eset]Back_Orifice.2000 trojan, Win32/BO.C trojan, Win32/BO2K.11 trojan, Win32/BO2K.Config trojan, Win32/BO2K.Workspace trojan, Win32/BO2K.111 trojan, Win32/BO2K.C trojan, Win32/BO2K.Plugin.Aes trojan, Win32/BO2K.Plugin.Control trojan, Win32/BO2K.Plugin.EncNull trojan, Win32/BO2K.Plugin.GetFile trojan, Win32/BO2K.Plugin.InetCmd trojan, Win32/BO2K.Plugin.Interface trojan, Win32/BO2K.Plugin.IoTcp trojan, Win32/BO2K.Plugin.IoUdp trojan, Win32/BO2K.Plugin.Legacy trojan, Win32/BO2K.Plugin.RegFile trojan, Win32/BO2K.Plugin.SendKeys trojan, Win32/BO2K.Plugin.Simpleauth trojan, Win32/BO2K.Plugin.System trojan, Win32/Back_Orifice.2000 trojan, Back_Orifice.Dropper trojan, BO.Config trojan, Win32/BO.1_20 trojan, Win32/BO.A trojan, Win32/BO.OpC_2_00 trojan, Win32/BO2K.112 trojan, Win32/BO2K.112.plugin trojan, Back_Orifice trojan, Win32/GotoOne trojan, Win32/IRC.SdBot.AV trojan
[McAfee]Orifice2K, Orifice2K.plugin, Orifice, New BackDoor2, Orifice.cli
[F-Prot]security risk or a "backdoor" program, W32/Bo2K.139264, ->val2.def, W32/Bo2K.114618, W32/Bo2K.221184, W32/Bo2K.53248, W32/Bo2K.581632, destructive program, W32/Back_Orifice.trojan.124928, W32/Back_Orifice.trojan.68901
[Panda]Bck/BO2K.Srv.A, BO2K/Config.srv, BO2K/Workspace, Univ.AP.H, Backdoor Program, Backdoor Program.LC, Trj/BO.BeeOne.10, Bck/BO.a, Bck/BO.a2, Trj/BO.A2, Trj/BOr
[CA]Backdoor/BO2K!Server, Backdoor/BO2K.11.Server, Win32.BackOrifice2000.10, Win32.BO2K.server.11, Backdoor/BO2K, Backdoor/BO2K!plugin.Aes, Backdoor/BO2K.Plugin, Win32.BackOrifice2000.11, Backdoor/BO2K.10, Backdoor/BO.a, Backdoor/BO.A!Server, Backdoor/BO.a2, Win32.Orifice, Win95.BackOrifice, Backdoor/BO2K.plugin.InetCmd.b, Backdoor/BO2K.plugin.Legacy.A, Backdoor/BO2K.plugin.RegFile.A, Backdoor/BO2K.plugin.Simpleauth, Backdoor/BO2K.plugin.SimpleNet, Backdoor/BO2K.plugin.System.A, Backdoor/BO2K.112, Backdoor/BO2K.112.Plugin, Win32.RPCSdbot.B, Win32/GotoOne.Trojan, Win32/RPCSpyBot.Trojan

How to Remove Back.Orifice from Your Computer^

You can effectively remove Back.Orifice from your computer with Exterminate It!.

After installing the program, run a scan to display a list of the files associated with Back.Orifice in the Scan Result screen and remove these files. For information about running scans and removing malware files, see the Exterminate It! Help.


A trojan is a program that is disguised as legitimate software but is designed to carry out some harmful actions on the infected computer.

Unlike viruses and worms, trojans don’t replicate but they can be just as destructive.

These days trojans are very common. Trojans are divided into a number different categories based on their function or type of damage.

Be Aware of the Following Trojan Threats:

Pigeon.EGG, Frethog.AFC, Stigma, Bancos.GMO, Hacksoff.


Spyware is designed to gather data from a computer and transfer it to a third party without the consent or knowledge of the computer’s owner. This includes collecting confidential information (passwords, credit card numbers, PIN numbers, etc.), monitoring key strokes, gathering e-mail addresses, or tracking surfing habits. Such resource-consuming activities slow down the system and generally impact the computer’s performance.

“Spyware” is an umbrella term for a diverse group of malware-related programs, rather than a clear-cut category. Most spyware definitions apply not only to adware, pornware and ‘riskware’ programs, but to many trojans as well.


Of all trojans, backdoor trojans pose the greatest danger to users’ PCs because they give their authors remote control over infected computers. They are downloaded, installed, and run silently, without the user’s consent or knowledge. Upon installation, backdoor trojans can be instructed to send, receive, execute and delete files, gather and transfer confidential data from the computer, log all activity on the computer, and perform other harmful activities.

Be Aware of the Following Backdoor Threats:

Agobot.bk, Egg, KeyKap, Ptakks.R1, VBS.Energon!Worm.


Remote Access Tool. A program that enables a hacker to remotely access and control other people’s computers. A RAT can serve a variety of malicious purposes, including hijacking and transferring private information, downloading files, running programs, and tampering with system settings.

Be Aware of the Following RAT Threats:

Moonpie.35b3, Ash, Eurosol, PWS.Fib, SpySender.88i.


Software that seizes control of a computer’s resources to proliferate itself or use them for other malicious purposes.

There are several types of hijackers. The most common are:

  • Browser hijackers – Alters the existing Internet browser settings so that a user is redirected to unwanted or malicious Web sites. These include programs that change the browser Home page or replace a popular search service’s home page with its own fake copy, whose search results point to particular malicious or irrelevant sites.
  • Autorun hijackers – Automatically run certain programs on start-up of a user’s computer.

Be Aware of the Following Hijacker Threats:

Trilon, CCInvader, Win32.Assault, Xupiter.Xjupiter, CWS.MSTaskm.

How Did My PC Get Infected with Back.Orifice?^

The following are the most likely reasons why your computer got infected with Back.Orifice:

  • Your operating system and Web browser's security settings are too lax.
  • You are not following safe Internet surfing and PC practices.

Downloading and Installing Freeware or Shareware

Small-charge or free software applications may come bundled with spyware, adware, or programs like Back.Orifice. Sometimes adware is attached to free software to enable the developers to cover the overhead involved in created the software. Spyware frequently piggybacks on free software into your computer to damage it and steal valuable private information.

Using Peer-to-Peer Software

The use of peer-to-peer (P2P) programs or other applications using a shared network exposes your system to the risk of unwittingly downloading infected files, including malicious programs like Back.Orifice.

Visiting Questionable Web Sites

When you visit sites with dubious or objectionable content, trojans-including Back.Orifice, spyware and adware, may well be automatically downloaded and installed onto your computer.

Detecting Back.Orifice^

The following symptoms signal that your computer is very likely to be infected with Back.Orifice:

PC is working very slowly

Back.Orifice can seriously slow down your computer. If your PC takes a lot longer than normal to restart or your Internet connection is extremely slow, your computer may well be infected with Back.Orifice.

New desktop shortcuts have appeared or the home page has changed

Back.Orifice can tamper with your Internet settings or redirect your default home page to unwanted web sites. Back.Orifice may even add new shortcuts to your PC desktop.

Annoying popups keep appearing on your PC

Back.Orifice may swamp your computer with pestering popup ads, even when you're not connected to the Internet, while secretly tracking your browsing habits and gathering your personal information.

E-mails that you didn't write are being sent from your mailbox

Back.Orifice may gain complete control of your mailbox to generate and send e-mail with virus attachments, e-mail hoaxes, spam and other types of unsolicited e-mail to other people.