Exterminate It! Antimalware


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


Dear Jean, Thank you for your response. I had a Windows 2003 Server down because of the USBroot trojan. I purchased Exterminate It! and it corrected the problem. I am very pleased with your product! I’m going to purchase it for other workstations with problems in our company.

Jerry C.


Aliases of Kaos (AKA):

[Kaspersky]Backdoor.Kaos.11, Backdoor.Kaos.10, Backdoor.Win32.Kaos.10
[F-Prot]security risk or a "backdoor" program
[Panda]Bck/Kaos.11, Bck/Kaos.13
[CA]Backdoor/Kaos.11, Backdoor/Kaos.11!Client, Backdoor/Kaos!Client, Backdoor/Kaos!Server, Win32.Kaos.10

How to Remove Kaos from Your Computer^

To completely purge Kaos from your computer, you need to delete the files and folders associated with Kaos. These files and folders are respectively listed in the Files and Folders sections on this page.

For instructions on deleting the Kaos files and folders, see the following section How to Delete Kaos Files (.exe, .dll, etc.).

How to Delete Kaos Files (.exe, .dll, etc.)^

The files and folders associated with Kaos are listed in the Files and Folders sections on this page.

To delete the Kaos files and folders:

  1. Using your file explorer, browse to each file and folder listed in the Folders and Files sections.
  2. Note: The paths use certain special folders (conventions) such as [%PROGRAM_FILES%]. Please note that these conventions are depending on Windows Version / Language. These conventions are explained here.
  3. Select the file or folder and press SHIFT+Delete on the keyboard.
  4. Click Yes in the confirm deletion dialog box.
  5. IMPORTANT: If a file is locked (in use by some application), its deletion will fail (the Windows will display a corresponding message).You can delete such locked files with the RemoveOnReboot utility. To delete a locked file, right-click on the file, select Send To->Remove on Next Reboot on the menu and restart your computer. You can install the RemoveOnReboot utility from here.


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:

Win32.Bionet, Netsphere.Final, Blackharaz!Setup, Win32.ReverseTrojan, KLF.


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:

Muska52, Visitor, XhxC, Canvas, Pc.Xplorer.

How Did My PC Get Infected with Kaos?^

The following are the most likely reasons why your computer got infected with Kaos:

  • 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 Kaos. 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 Kaos.

Visiting Questionable Web Sites

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

Detecting Kaos^

The following symptoms signal that your computer is very likely to be infected with Kaos:

PC is working very slowly

Kaos 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 Kaos.

New desktop shortcuts have appeared or the home page has changed

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

Annoying popups keep appearing on your PC

Kaos 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

Kaos 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.