Basically I know of 4 ways everybody can get rid of the trojan horse virus.

1. Buy a new computer (you won't believe but it works!).
2. Call a techie and (s)he will repair your computer for a beer.
3. Get a bunch of commercial anti-malware programs and spend a day running endless scans. Usually it works though costs a small fortune.
4. Read this hub, download recommended tools and you'll find the right answer to the question "how do I get rid of the trojan horse virus?".

As you might have guessed, I will concentrate on #4.

Obviously it makes sense to start the fight with Trojans using Microsoft Malicious Software Removal Tool. If your Windows is set to receive Automatic Updates, then most probably the Tool is there and ready to be used.

1. Click Start-->Run
2. Type in mrt and click OK.

Ideally the Tool should start, but if you experience an error then probably you will have to download it manually.

Download: Microsoft Malicious Software Removal Tool. 

MSRT is over 8 Megabytes in size.

Obviously you need to click 'Next" to proceed. You will be brought to Types of Scan. Usually choosing Quick Scan is recommended because the Tool knows where to look for Trojan Horse viruses. Quick Scan takes several minutes to complete. MSRT will provide a report after scan is complete.

Microsoft's tool sometimes is very helpful. For example, it can detect and remove Conficker and repairs Internet connection. But it doesn't remove hidden rootkit, so it's important to run a different tool after MSRT scan.

This is a VERY powerful, effective and freeware anti-trojan. SDFix detects and removes a plethora of trojans and worms, fixes registry and overall makes the life of malware a sad experience.

WARNING: nobody takes responsibility for damages caused by improper use of SDFix. Better consult a savvy tech person or just learn yourself how to run SDFix. Readme.txt contains the steps to follow.

So let's begin with downloading SDFix.

Double-click the downloaded SDFix.exe and let it unpack the files into default directory. Then you will need to boot into Windows Safe Mode (press F8 key repeatedly when restarting). The screenshot above shows which option to choose.

NOTE: if Safe Mode is not accessible because of malware impact, use Reset button to restart and logon normally. Go to SDFix install directory and double-click RunThis.bat. Choose the option Repair SafeBoot Key.

When logged on in Safe Mode, navigate to SDFix install directory (by default it's located in C:\SDFix). Look for RunThis.cmd and execute it.

Type Y to proceed and hit Enter.

Now you sit back and wait. SDFix will complete a number of operations. The CPU usage can reach 100% peak usage at times; this is normal. The hard drive(s) will spin fast.

Generally this tool takes about 20 minutes to perform the repair tasks. When the first part of scan is completed, you will be asked to reboot. Do it. SDFix will continue doing its things and after some time you will get a Report on the desktop.

After running SDFix it's advisable to ensure that you run any of the online virus scanners. 

DrWeb CureIt is a free scanner from the makers of DrWeb Antivirus. CureIt comes with classic Windows interface and is extremely easy to use. Upon downloading a 18 megs file you will have to execute the program pr99pv2x.exe. It will display to options: Update and Run a scan. If you download CureIt from the DrWeb's website, your copy is the latest one and there's no need to click "Update" button. Press "Scan" instead and you will be informed about scanner's routine. Click 'OK' to proceed. The Express scan will begin automatically.

DrWeb CureIt will check system memory, boot sectors, startup environment, Windows system folder and other common places where trojan horse virii like to seek a shelter.

Express scan can be paused or stopped manually. Additionally, there's an option to switch to Complete scan (will check all files) or Custom scan (will check user-specified folders and drives).

Found pieces of malware can be deleted using the Object box.

Download DrWeb CureIt. 

This is the simplest answer to the question "how do I get rid of a trojan virus horse?" I can think of. Just don't panic and don't hurry to spend your money on all kinds of super-effective Trojan Horse removers. Use all the tools recommended above and most probably your problem will get solved.

And - no, you won't find any affiliate links in this hub.