How to remove a Trojan, virus or spyware program from a computer
My anti virus program says it’s detected a Trojan on my work computer, and then requested delete, but the computer is still behaving strangely and the warning keeps happening. Is there another program that may help?
Simply deleting the Trojan probably won’t work. The problem with these programs is they are designed to hide in system files and reappear at the first opportunity.
Fixing a Trojan infection can be a very difficult process. The first step is to backup your data. It may be necessary to wipe your computer and reinstall everything.
Once you’ve backed up all your data, download as many spyware removal tools as possible to remove the trojan. We’d suggest starting with Malware Bytes, Spybot and Adaware.
A good anti-virus is also important. We’d recommend installing one of the free virus protection tools which we discuss at Which Free Anti-Virus is Best.
Each of these programs should be installed and their update routines run so they are fully up to date. DO NOT SCAN YOUR COMPUTER OR TRY TO REMOVE THE TROJAN YET.
Shutdown your computer and restart in Safe Mode. This will start the computer with the basic settings and, hopefully, without the Trojan starting, this is essential if you want to remove the trojan from your system.
With the computer running in Safe Mode, run all the anti virus and anti spyware programs you previously installed. Do one at a time and be aware this will take many hours.
This will clear all but the worst Trojan, virus or spyware infections, but what you should be aware of is modern malare is very good at hiding itself and if the problem persists you either have to call a technician or wipe the computer. This may be necessary to remove the Trojan from your computer
After any spyware or Trojan infection, you should be aware that any online services you’ve accessed might be compromised. We highly recommend you change all banking and other sensitive passwords and monitor your financial statements closely after finding an infection.
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October 22nd, 2007 at 5:03 am
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December 3rd, 2007 at 5:47 am
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January 4th, 2008 at 8:24 am
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January 10th, 2008 at 9:06 am
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January 23rd, 2008 at 9:31 am
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February 3rd, 2008 at 2:27 pm
[...] doing anything else, we’d suggest you check your computer for malware. If this is due to a virus or spyware infection, then you’ll need to clean it up before going [...]
February 4th, 2008 at 6:05 am
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February 11th, 2008 at 9:46 pm
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March 5th, 2008 at 5:28 am
[...] usage has blown out as Ebay shouldn’t be causing this and we’d strongly suggest you check your computer for viruses. It would also be a good idea to setup a limited user profile for your husband as we explain on our [...]
March 23rd, 2008 at 6:12 am
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April 2nd, 2008 at 3:55 am
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April 2nd, 2008 at 4:06 am
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April 6th, 2008 at 8:23 am
[...] the program. The first suspicion is you have a malware infection so the first recommendation is to check your computer for viruses and Trojans.If you have trouble opening Internet Explorer, you should be able to go straight to the websites by [...]
April 11th, 2008 at 6:11 am
[...] The access violation indicates something is seriously wrong with Internet Explorer. You must give your computer a full scan for viruses and spyware before doing anything [...]
April 30th, 2008 at 7:30 am
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May 19th, 2008 at 9:20 pm
How to remove TROJANHORSEDOWNLOADER.Delf.12.AE from my windows 98 system.
June 8th, 2008 at 11:23 am
[...] also important to check your computer hasn’t been compromised by checking for viruses and Trojans. You should also monitor your bank accounts for suspicious [...]
June 27th, 2008 at 9:12 am
[...] poor record in detecting threats, we’d also recommend following the instructions in our Removing a Trojan [...]
September 8th, 2008 at 2:53 pm
worm, trojen horse and virus occur in which type of computer?
and where they are attached?
October 11th, 2008 at 10:27 am
[...] Real Player and Apple QuickTime and iTunes in the next posts, in the meantime you may want to check you don’t have any spyware on your computer just to be [...]
October 27th, 2008 at 9:24 am
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October 29th, 2008 at 9:28 am
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December 23rd, 2008 at 9:31 pm
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December 24th, 2008 at 5:50 am
[...] is infected with Dowloader.Delf and are concerned then download and run Malwarebytes or follow the Removing a Trojan instructions on the IT Queries webpage to check you aren’t infected with anything [...]
December 24th, 2008 at 6:50 am
[...] in the next few hours. In the meantime you should check your system for nasties by following our Removing a Trojan [...]
December 29th, 2008 at 8:58 pm
[...] It is possible your computer has been hijacked with some malware and the web browser is being redirected to a site that has been disabled so you should check your computer isn’t infected with a Trojan. [...]
January 8th, 2009 at 10:05 pm
[...] you’re finished, check your computer for viruses as Limewire users seem to be prone to picking up [...]
May 5th, 2009 at 2:45 pm
I can not recommend Adaware it stops after 20 minutes and just freezes. I have deleted and re-downloaded twice and it still freezes. A complete wast of time
Dennis G
January 6th, 2010 at 4:43 am
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June 6th, 2010 at 6:23 pm
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July 25th, 2010 at 1:43 pm
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November 2nd, 2010 at 2:37 pm
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December 5th, 2010 at 7:04 pm
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December 13th, 2010 at 7:25 pm
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May 6th, 2011 at 10:54 am
[...] can be sure their systems are safe to use. We’d suggest downloading MalwareBytes and follow our Removing A Trojan instructions however if that’s too complex, it might be worthwhile calling a computer [...]