How to Remove T.CN Virus (Chrome, Firefox, IE)

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Are you bombarded with the T.CN pop-ups when surfing the Web? Unfortunately, that is a sign your computer has fallen victim to some adware-type infection. Adware and PUPs (potentially unwanted programs) are considered to be the least harmful types of viruses. That doesn’t mean you could afford to overlook the threat, though. There is no such thing as a harmless cyber infection so make no mistake with this particular parasite. Instead, locate the sneaky intruder and get rid of it on the spot. You have nothing to lose by deleting a virus. On the other hand, you have quite a lot to gain. As soon as the infection lands on board, it starts exposing you to further threats. In other words, it brings along sponsored, unreliable pop-up ads. You’ve noticed the T.CN commercials already, haven’t you? Ignoring those would be pretty much impossible because the ads are everywhere. They cover all websites you visit, they are stubborn and invasive. Apart from the fact you can’t surf the Web at peace anymore, you’re also no longer in charge of your browsers. The adware modifies their default settings without bothering to seek permission. At the end of the day, that is a nasty creation of cyber crooks. Its very last purpose was to help you browse the Web or to be beneficial for you overall. Instead, the parasite helps its developers use the pay-per-click mechanism to gain profit. The technique hackers apply is actually very simple. Their sneaky parasite infects your computer behind your back and messes with your browsers. Thanks to its shenanigans, you’ll notice several unauthorized changes in their settings. For instance, a brand new extension that was added by the adware. You may spot some additional toolbars and other modifications. It goes without saying that having your favorite browser settings altered by a virus puts you in danger. Your very own browsers now generate sponsored commercials and various unsafe links. The T.CN pop-ups come in all shapes and colors imaginable. That includes coupons, discounts, product deals, price comparisons, “best prices”, etc. Do the advertisements seem trustworthy? Even if they do, you should know better than to click any of them open. Sponsored links often redirect you straight to malicious websites. That allows you to download more infections and make the situation worse. To prevent further damage, tackle the adware-type nuisance ASAP.

How did I get infected with?

There are many equally stealthy infiltration techniques. Hence, it’s almost impossible to determine the exact method this pest used. Hackers do have a couple of favorite methods so, chances are, some of the most popular tactics let the adware get installed. Freeware/shareware bundling is a particularly effective way for infections to travel the Web. If you’re someone who often downloads bundled programs, keep in mind this is also a virus distribution method. Hackers often attach all sorts of parasites to a single software bundle. Unless you pay attention, you could install some additional malicious “bonuses”. How do you prevent that? Opt for the Custom or Advanced option in the Setup Wizard. Watch out for some bonus infections you may spot hiding in the deceptively safe bundle. Deselect the potential intruders before it’s too late and save yourself the headache. Fighting an infection is indeed a greater hassle than preventing malware infiltration. Another plausible explanation of the parasite’s presence involves spam emails. Stay away from random email-attachments as well as messages. Those might turn out to be full of malware and, ultimately, create trouble.

Why is this dangerous?

The infection floods your PC screen with specific, tailored web links. Hackers’ main concern is to trick you into clicking the T.CN pop-ups open. If you do, you help them gain revenue. Simple as that. Unfortunately, clicking a corrupted ad could lead you to harmful pages or involve you in a scam. There are many corrupted and utterly fake commercials among the ads generated by the virus. As you could imagine, you won’t be able to tell which is safe and which one isn’t until you click. We’d recommend that you take no chances when it comes to your security; don’t be gullible. Avoid clicking any of the misleading, tricky advertisements you might come across. Remember, as long as your computer is infected, you’re one click away from more cyber viruses. You also get redirected and your browsing-related details get monitored. To delete the adware manually, please follow our detailed removal guide down below.

How to Remove T.CN virus

The T.CN infection is specifically designed to make money to its creators one way or another. The specialists from various antivirus companies like Bitdefender, Kaspersky, Norton, Avast, ESET, etc. advise that there is no harmless virus.

If you perform exactly the steps below you should be able to remove the T.CN infection. Please, follow the procedures in the exact order. Please, consider to print this guide or have another computer at your disposal. You will NOT need any USB sticks or CDs.

STEP 1: Track down T.CN in the computer memory

STEP 2: Locate T.CN startup location

STEP 3: Delete T.CN traces from Chrome, Firefox and Internet Explorer

STEP 4: Undo the damage done by the virus

STEP 1: Track down T.CN in the computer memory

• Open your Task Manager by pressing CTRL+SHIFT+ESC keys simultaneously
• Carefully review all processes and stop the suspicious ones.

• Write down the file location for later reference.

Step 2: Locate T.CN startup location

Reveal Hidden Files

• Open any folder
• Click on “Organize” button
  
• Choose “Folder and Search Options”
• Select the “View” tab
• Select “Show hidden files and folders” option
• Uncheck “Hide protected operating system files”
• Click “Apply” and “OK” button

Clean T.CN virus from the windows registry

• Once the operating system loads press simultaneously the Windows Logo Button and the R key.

• A dialog box should open. Type “Regedit”

• WARNING! be very careful when editing the Microsoft Windows Registry as this may render the system broken.

Depending on your OS (x86 or x64) navigate to:

[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run] or
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] or
[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run]

• and delete the display Name: [RANDOM]

• Then open your explorer and navigate to: %appdata% folder and delete the malicious executable.

Clean your HOSTS file to avoid unwanted browser redirection

Navigate to %windir%/system32/Drivers/etc/host

If you are hacked, there will be foreign IPs addresses connected to you at the bottom. Take a look below:

STEP 3 : Clean T.CN traces from Chrome, Firefox and Internet Explorer

• Open Google Chrome

• In the Main Menu, select Tools then Extensions
• Remove the T.CN by clicking on the little recycle bin
• Reset Google Chrome by Deleting the current user to make sure nothing is left behind

• Open Mozilla Firefox

• Press simultaneously Ctrl+Shift+A
• Disable the unwanted Extension
• Go to Help
• Then Troubleshoot information
• Click on Reset Firefox

• Open Internet Explorer

• On the Upper Right Corner Click on the Gear Icon
• Click on Internet options
• go to Toolbars and Extensions and disable the unknown extensions
• Select the Advanced tab and click on Reset

• Restart Internet Explorer

Step 4: Undo the damage done by T.CN

This particular Virus may alter your DNS settings.

Attention! this can break your internet connection. Before you change your DNS settings to use Google Public DNS for T.CN, be sure to write down the current server addresses on a piece of paper.

To fix the damage done by the virus you need to do the following.

• Click the Windows Start button to open the Start Menu, type control panel in the search box and select Control Panel in the results displayed above.
• go to Network and Internet
• then Network and Sharing Center
• then Change Adapter Settings
• Right-click on your active internet connection and click properties. Under the Networking tab, find Internet Protocol Version 4 (TCP/IPv4). Left click on it and then click on properties. Both options should be automatic! By default it should be set to “Obtain an IP address automatically” and the second one to “Obtain DNS server address automatically!” If they are not just change them, however if you are part of a domain network you should contact your Domain Administrator to set these settings, otherwise the internet connection will break!!!

You must clean all your browser shortcuts as well. To do that you need to

• Right click on the shortcut of your favorite browser and then select properties.

• in the target field remove T.CN argument and then apply the changes.
• Repeat that with the shortcuts of your other browsers.
• Check your scheduled tasks to make sure the virus will not download itself again.

How to Permanently Remove T.CN Virus (automatic) Removal Guide

Please, have in mind that once you are infected with a single virus, it compromises your system and let all doors wide open for many other infections. To make sure manual removal is successful, we recommend to use a free scanner of any professional antimalware program to identify possible registry leftovers or temporary files.