How to Remove a Trojan Virus


This page aims to help you remove Trojan virus. Our removal instructions work for every version of Windows.

A Trojan (or a Trojan horse) is a term, used in the cyber circles to describe a very malicious computer program, which is created to secretly infect various computer systems and to initiate some harmful activity. Usually, such a malicious program can cause harm in many ways. It typically is related to acts of online fraud and theft, as well as system corruption, data deletion, and distribution of other viruses, such as Ransomware. The hackers, who develop Trojan horse infections, may often use them to gain unauthorized access to the infected machine and establish remote control over its processes. As soon as such a malware infiltrates the computer, it tries to remain hidden for as long as possible. Unlike most computer threats, which usually have some symptoms, that can give them away, detecting the Trojan can be quite difficult. In most of the cases, since there are no typical signs, which can draw attention, the users may not be able to spot it on their own. Therefore they may need reliable anti-virus software to scan the system and have the stealthy Trojan removed.

The activity of each Trojan horse depends entirely on the intentions of its author. Most programs of this kind are capable of infecting, corrupting and overwriting files and different important system components. They can also format disks and destroy the entire OS. Many Trojans are related to banking fraud and theft where sensitive financial data is stolen or bank accounts are drained with their help. Such harmful pieces may also track down the victim’s activity and keystrokes and may steal passwords, login credentials, and sensitive personal information. The hackers can use them to create backdoors for other malware or to establish remote control over the existing components. Trojans are also related to Denial of Service (DoS) attacks, as well as other network attacks, BotNets, cryptocurrency mining and spam distribution.


Remove Trojan virus


 

Step1

Some of the steps will likely require you to exit the page. Bookmark it for later reference.

Reboot in Safe Mode (use this guide if you don’t know how to do it).

Step2

WARNING! READ CAREFULLY BEFORE PROCEEDING!

Press CTRL + SHIFT + ESC at the same time and go to the Processes Tab. Try to determine which processes are dangerous. 

malware-start-taskbar

Right click on each of them and select Open File Location. Then scan the files with our free online virus scanner:

Drag and Drop Files Here to Scan
Maximum file size: 128MB.

This scanner is free and will always remain free for our website's users. You can find its full-page version at: https://howtoremove.guide/online-virus-scanner/




Scan Results


Virus Scanner Result
ClamAV
AVG AV
Maldet

After you open their folder, end the processes that are infected, then delete their folders. 

Note: If you are sure something is part of the infection – delete it, even if the scanner doesn’t flag it. No anti-virus program can detect all infections. 

Step3

Hold together the Start Key and R. Type appwiz.cpl –> OK.

appwiz

You are now in the Control Panel. Look for suspicious entries. Uninstall it/them. If you see a screen like this when you click Uninstall, choose NO:

virus-removal1

Step4

Type msconfig in the search field and hit enter. A window will pop-up:

msconfig_opt

Startup —> Uncheck entries that have “Unknown” as Manufacturer or otherwise look suspicious.

  • Remember this step – if you have reason to believe a bigger threat (like ransomware) is on your PC, check everything here.

Hold the Start Key and R –  copy + paste the following and click OK:

notepad %windir%/system32/Drivers/etc/hosts

A new file will open. If you are hacked, there will be a bunch of other IPs connected to you at the bottom. Look at the image below:

hosts_opt (1)

If there are suspicious IPs below “Localhost” – write to us in the comments.

Step5

Type Regedit in the windows search field and press Enter.

Once inside, press CTRL and F together and type the virus’s Name. Right click and delete any entries you find with a similar name. If they don’t show up this way, go manually to these directories and delete/uninstall them:

  • HKEY_CURRENT_USER—-Software—–Random Directory. It could be any one of them – ask us if you can’t discern which ones are malicious.
    HKEY_CURRENT_USER—-Software—Microsoft—-Windows—CurrentVersion—Run– Random
    HKEY_CURRENT_USER—-Software—Microsoft—Internet Explorer—-Main—- Random

If the guide doesn’t help, download the anti-virus program we recommended or try our free online virus scanner. Also, you can always ask us in the comments for help!

How can a Trojan horse infect a computer?

It is typical for the Trojans to infect the computer without the users’ knowledge. For that, they usually spread themselves with the help of camouflaged transmitters and often pretend to be seemingly-harmless web content. Here are some of the most common ways such malicious programs may use to get into the system:  

  • Spam emails, infected links, and attachments. Many Trojans get distributed through infected emails, and harmful messages on file-sharing networks and online chats. They often resemble simple links, funny pics, attachments, sent from friends, or different free downloadable files.
  • System weaknesses and web browser vulnerabilities. Outdated virus definitions and old system security patches can often allow new and more sophisticated Trojan infections to sneak undetected. Also, when your browser has no proper security settings, or you visit insecure web locations, landing on illegal sites, filled with harmful code, is more likely to happen. 
  • Infected program installers, harmful download links, .exe files. Very commonly Trojans may get installed via infected software bundles and .exe files, harmful downloads, torrents, pirated content, and various sketchy apps and add-ons.
  • Fake software update requests and legitimate-looking program setups. Some Trojans may get integrated into certain free applications and their features and may fake software update request messages. Recently, even legitimate-looking programs may have their installation or update kit faked by this malware, which only aims to trick the people into clicking on the harmful payload.
  • Malvertising. Fake ads, misleading links, too-good-to-be-true offers, “you won a prize” pop-ups and similar messages are often used by the cyber criminals to spread this malware.

All in all, the consequences of having a Trojan horse on your machine can be unpredictable. That’s why, it is a good idea to protect your PC with reliable antivirus software, run regular scans of your OS, get the latest security patches and try not to interact with anything, which appears shady or potentially dangerous.

SUMMARY:

Name N/A – A generic Trojan
Type Trojan
Danger Level  High (Trojans are often used as a backdoor for Ransomware)
Symptoms  This malware rarely triggers visible symptoms but if you notice some unusual system activity, you should definitely run a security scan.
Distribution Method  Various distribution channels such as malvertising, spam, infected email attachments, torrents, pirated software, fake software updates, malicious links. 
Detection Tool


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