Unknown Trojan Description and Removal Instructions

Unknown Trojan Description (Scan your PC for Unknown Trojan with SpyHunter)

Unknown Trojan is the Trojan name that appears on fake error messages made by trojan makers to threaten and trick you into buying rogue anti-spyware applications like Files Secure.

You're not really infected with an 'Unknown Trojan', but, instead, you're infected with a Trojan that's found on fake video codecs. Most of the fake video codecs that are circulating on the Web are infected with a Trojan called Trojan.Zlob. If your computer displays an 'Unknown Trojan' error message similar to the example below, you may be infected with Trojan.Zlob. Do not click on the 'Unknown Trojan' error message and do not download any product it recommends.

Unknown Trojan error message:

System Error!

"Your computer was infected by an Unknown Trojan.
It’s dangerous for your system (critical files can be lost)!
Click OK to download the antispyware program to clean your computer! (Recommended)"



In the past, 'Unknown Trojan' was mentioned as a keylogger that can not be stopped by firewall, because the firewall sees it as a part of the web browser. Therefore, Unknown Trojan may pose a serious threat to your computer's privacy and security. Unknown Trojan may also change the homepage and monitor user's actions. The prime function is logging keystrokes, including passwords and bank accounts and sending them to hacker.

Why Should I Remove Unknown Trojan?

Note: Manual removal is a difficult process and it is not recommend unless you are an expert in this field. Therefore, your best defense is to download and install a reliable anti-spyware program to scan Unknown Trojan and other spyware on your machine. In order to detect Unknown Trojan in the easiest and fastest way possible, we advised trying the free SpyHunter scanner provided on this website. The free version of SpyHunter is only a detection utility.

However, if you wish to continue to the Unknown Trojan removal stage with SpyHunter, you must first purchase the full version of SpyHunter or you can manually remove Unknown Trojan by moving on to the "Remove Unknown Trojan Manually" section.

Online threats constantly change to avoid detection, and therefore SpyHunter comes equipped with a full technical support, as well as a one-on-one customer support service called Spyware HelpDesk which gives its support technicians the ability to create a custom automated fix tailored to your PC. If SpyHunter is unable to detect and remove Unknown Trojan, the Spyware Helpdesk will generate a custom fix, transmit it to your SpyHunter removal tool and completely remove Unknown Trojan from your PC.

1. Download SpyHunter Scanner.
   
   
2. Run a full system scan to detect Unknown Trojan files.
   
   
3. Once you've detected Unknown Trojan on your PC, you will then need to purchase SpyHunter to start the removal process.
   
   
4. Reboot your PC and rerun the scan for any remaining traces of Unknown Trojan.
   
   

** SpyHunter scanner version is ONLY for detection. To remove Unknown Trojan and other threats, you will need to purchase SpyHunter's removal tool.

Remove Unknown Trojan Manually

Tip: If you are not an expert in this field, we highly recommend you use SpyHunter to scan your PC for Unknown Trojan. You'll run the risk of damaging your computer if you make a mistake during the manual removal process.

Unknown Trojan Advice

Unknown Trojan manual removal process can be difficult to do because you're required to access and edit sensitive files in your system registry.

Warning: If you try to remove Unknown Trojan files without being completely sure what you are doing, you run the risk of damaging or losing important data on your computer.

Tip: To avoid this risk, we highly recommend you use a good spyware cleaner/remover to automatically find and remove Unknown Trojan as well as spyware, adware, trojan and malware in your PC.

Unknown Trojan Automatic Detection

To automatically search for Unknown Trojan...
Download SpyHunter Scanner.

** SpyHunter scanner version is ONLY for detection. To remove Unknown Trojan and other threats, you will need to purchase SpyHunter's removal tool.

For more details on Unknown Trojan, please read our "Unknown Trojan Overview" below.

Unknown Trojan Overview

In the following sections, we investigate and explain the key malicious properties that are attributed to Unknown Trojan.

How Unknown Trojan infects your PC

Unknown Trojan may use one or more of these methods to infect your computer. Unknown Trojan is spyware that may take control of your entire system. Unknown Trojan may infect your computer...

• Through unexpected email attachments. One of the most popular ways of becoming infected with spyware is by opening an attachment sent via e-mail. You should never open unexpected email attachments. Confirm with the sender first that they did in fact send the email.
  
  
• Through browser security loopholes while you're surfing the Web. Some spyware can even bypass firewalls by disguising itself as part of legitimate software.
  
  
• Through instant messenger programs. If you're not secured by a good firewall, spyware can attach itself when you're sharing files with your instant messenger.
  
  
• Unknown Trojan recreates, repairs and updates itself. Unknown Trojan and other complex spyware applications may recreate, repair and update themselves to evade deletion. When Unknown Trojan alters, restores and updates its files, DLLs, registry keys and process, a scanner may only remove part of the program allowing the other remaining files to execute procedures to repair and update. In these cases, it can make the Unknown Trojan manual removal process very difficult.
  
  

Unknown Trojan Prevention Rules

Follow these Unknown Trojan prevention rules and protect your computer from Unknown Trojan and other spyware:

Rule #1: Ensure that your Windows Security is up-to-date.

Every week Microsoft provides their new updates that can always be downloaded manually from the Microsoft website. To get Microsoft Update, you should do the following steps:

1. Go to IE > Tools > Windows Update > Product Updates,
   
   
2. Select "ALL High-Priority Security Updates" from the list,
   
   
3. Open IE and go to Internet Options > Security > Internet,
   
   
4. Press "Default Level" and then OK,
   
   
5. Press "Custom Level."

Rule #2: Download and install a reliable anti-spyware software.

A good anti-spyware software that recognizes current Unknown Trojan as well as other forms of spyware can be the answer to all your security issues. Listed below is an anti-spyware program that can effectively reverse the damage of your computer and detect Unknown Trojan automatically.

Download SpyHunter Scanner.

** SpyHunter scanner version is ONLY for spyware detection. To remove Unknown Trojan and other online threats, you will need to purchase SpyHunter's removal tool.

Rule #3: Keep your anti-spyware definitions up-to-date.

New Unknown Trojan files can be created every day, thus it is very important to ensure that your anti-spyware program is up-to-date. Your anti-spyware scanner should have an update feature where with a click of a button so you can get new spyware definitions immediately. Often, good anti-spyware software will open an update window reminding you that there are new updates available.

Rule #4: Install and keep your firewall turned on.

A firewall is vital for a complete protection of your PC. Ensure that your firewall is always turned on. A firewall can stop unwanted software like Unknown Trojan from hijacking your PC.

Unknown Trojan and other Spyware Related Info:

Wikipedia.org/Spyware - Wikipedia's definition of spyware.
StopBadware.org - A non-profit organization that aims to fight against badware.
Anti-Spyware Coalition - Is a group dedicated to building a consensus about definitions and best practices in the debate surrounding spyware and other potentially unwanted technologies.