What is a Trojan Virus and How to Remove it [Full Guide]
Written by: Stelian Pilici
Published on:
Trojan viruses are a dangerous type of malware that gain access to computers under false pretenses in order to deliver malicious payloads. This comprehensive guide will unpack everything about how trojan viruses operate – their infection tactics, attack methods, how to spot infections, and proven steps to remove them.
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What Are Trojan Viruses?
Trojan viruses are a dangerous form of malware that infiltrate computers under false pretenses to unleash malicious and sometimes destructive attacks. Trojan viruses exhibit worm-like behavior by replicating themselves and spreading across networks and removable media.
Trojan viruses get their name from the legendary Trojan Horse tale in ancient Greek mythology. The Greeks presented a giant wooden horse statue supposedly as a gift to the people of Troy. However, it was filled with Greek soldiers hiding within the hollow sculpture. Once the horse was brought inside Troy’s defenses, the Greek soldiers emerged at night and attacked from within, winning the war.
Similarly, trojan viruses disguise themselves as useful programs or files in order to trick unwitting users into willingly downloading and installing the malware. But concealed within the appealing package is harmful software waiting to be unleashed. Once installed, trojan viruses open backdoors into infected computers for remote hackers to exploit.
Some of the most common digital disguises trojan viruses use include:
Cracked software or game mods that promise free, unlimited access to paid programs
Fake videos or music files like MP3s or movie trailers
Bogus utility software like PC optimization tools or cleanup wizards
Legitimate-looking installers bundled with trojans as added components
Official software cunningly modified and repackaged with viral payloads
Fake software updates that mimic real alerts from trusted programs
Malicious email attachments pretending to be invoices or shared documents
Other trojan virus distribution tactics include compromising legitimate websites to silently push downloads to visitors, or infecting removable media like USB sticks that automatically execute malicious scripts when plugged in.
Once a trojan virus is installed on a computer, it leverages rootkit functions to bury deep within the system – modifying registries, creating hidden processes, embedding in folders, and changing configurations. This makes detection and removal much harder.
From their embedded location, trojan viruses can unleash a variety of damaging and illegal cyber attacks, including:
Logging keystrokes and scraping screenshots or clipboard data to steal passwords, banking details, and other sensitive information
Activating webcams and microphones to spy on victims
Allowing backdoor remote access for hackers to fully control the computer
Downloading additional malware such as ransomware or botnet modules
Disabling and changing security software configurations to allow infections to persist
Crashing systems by overloading critical resources like RAM and CPU
Damaging files and data by overwriting, deleting, or encrypting documents
Propagating across networks to infect more connected computers and systems
For victims, a trojan virus infection opens up their digital life to constant monitoring, identity theft, extortion, data and hardware destruction, and resources hijacked for criminal purposes.
Here are some real-world examples of dangerous trojan viruses:
Zeus – Designed to steal banking credentials through keylogging and form grabbing. Spread via phishing and drive-by downloads.
NanoCore – Provided hackers with remote access to clandestinely control systems and exfiltrate data.
DarkComet – Older trojan used for cyber espionage via webcam spying, keylogging and data exfiltration.
BlackEnergy – Infamous for enabling distributed denial-of-service (DDoS) attacks that overwhelmed targets. Also destroyed data.
Emotet – Major banking trojan that often distributes additional spam, ransomware and banking malware modules.
These examples highlight why trojan viruses continue to rank among the most dangerous cyber threats facing computer users today. Their advanced deception tactics and malicious capabilities make them a high-risk malware threat.
How Do Trojan Viruses Infiltrate Systems?
Trojan viruses employ deceptive distribution tactics to get installed on target computers. Some of their most common infection methods include:
Bundled downloads – The viruses get packaged within appealing but fake software installers.
Phishing emails – Malicious attachments pretending to be documents or invoices infect systems when opened.
clickjacking – Users get tricked into clicking disguised download buttons on compromised sites.
Fake updates – Popups imitate software upgrade alerts to get users to download infected installers.
Physical media – Infected USB drives or disks trigger automatic virus execution when plugged in.
Network worms – Some trojan viruses scan for open network shares and security holes to spreadcopies of themselves.
Once installed, trojan viruses leverage rootkit functions to bury themselves in registries, folders, and processes. This makes detection and removal much harder.
Signs of a Trojan Virus Infection
Trojan viruses try to stay covert once installed. But there are some symptoms that may indicate their presence:
Slow computer performance – Trojan viruses consume system resources which causes lag and crashes.
Unknown processes – Check for unfamiliar processes running that don’t match your installed programs.
Antivirus alerts – Security software may detect trojan virus behavior and block the infection.
Network usage spikes – Unusual spikes in traffic indicate trojan viruses phoning home or spreading.
Frequent crashes – Programs crashing or freezing constantly can point to trojan virus interference.
Corrupted files – Trojan viruses damage files as part of data wiper or ransomware capabilities.
Any of these signals warrants a deeper scan to isolate and exterminate embedded trojan viruses.
Dangers of Trojan Viruses
Left unchecked, trojan viruses pose many threats:
Remote system control – Hackers can fully operate the computer via backdoor access.
Financial theft – Keyloggers and data scraping steal banking, credit card information and logins.
Loss of sensitive data – Trojan viruses extract documents, passwords, emails and other confidential information.
Ransomware deployment – Trojan viruses often install additional ransomware modules to extort money.
Webcam hijacking – Criminals can spy through your webcam once a trojan virus is present.
Zombie botnets – Your Windows system may get conscripted into hacker-controlled botnets.
Worm propagation – Virulent trojan viruses can rapidly spread copies across networks and infect connected devices.
It is critical to quickly find and terminate trojan virus infections before additional damage can be done.
How to Check for and Remove Trojan Viruses
This malware removal guide may appear overwhelming due to the number of steps and numerous programs that are being used. We have only written it this way to provide clear, detailed, and easy-to-understand instructions that anyone can use to remove malware for free. Please perform all the steps in the correct order. If you have any questions or doubts at any point, stop and ask for our assistance.
Trojan Viruses can target Windows, Android, and Mac devices, so we’ve covered each operating system below. Depending on which operating system is installed on your computer please click on the operating system icon below and follow the displayed steps to remove the Trojan Viruses.
STEP 1: Use Rkill to terminate malicious processes
In this first step, we will download and run Rkill to terminate malicious processes that may be running on your computer.
RKill is a program that was developed at BleepingComputer.com that attempts to terminate known malware processes so that your normal security software can then run and clean your computer of infections. When RKill runs it will kill malware processes and then removes incorrect executable associations and fixes policies that stop us from using certain tools.
Download Rkill.
You can download RKill to your computer from the below link. When at the download page, click on the Download Now button labeled iExplore.exe. We are downloading a renamed version of Rkill (iExplore.exe) because some malware will not allow processes to run unless they have a certain filename.
RKILL DOWNLOAD LINK (The above link will open a new page from where you can download Rkill)
Run RKill.
After downloading, double-click the iExplore.exe icon to kill malicious processes. In most cases, downloaded files are saved to the Downloads folder. The program may take some time to search for and end various malware programs.
When it is finished, the black window will close automatically and a log file will open. Do not restart your computer. Proceed to the next step in this guide.
STEP 2: Uninstall malicious programs from Windows
In this second step, we will manually check if any unknown or malicious programs are installed on the computer. Sometimes adware and browser hijackers can have a usable Uninstall entry that can be used to remove them.
Windows 11Windows 10Windows 8Windows 7
Press the Windows key + I on your keyboard to open the Settings app.
First, open Windows Settings by pressing Windows+I on your keyboard. You can also right-click your Start button and select “Settings” from the list.
In the Settings app, click on “Apps” and then “Apps & features”.
When Settings opens, click “Apps” in the sidebar, then select “Apps & Features”.
Find the malicious program in the list of installed apps and uninstall it.
In Apps & Features settings, scroll down to the app list and search for unknown or suspicious programs. To make things easier, you can sort all installed programs by their installation date. To do this, click “Sort by” and select “Install date”.
Look out for any suspicious program that could be behind all the drama – anything you don’t remember downloading or that doesn’t sound like a genuine program. When you find a malicious program, click the three dots button beside it and select “Uninstall” in the menu that appears.
If you have checked your computer for malicious programs and did not find any, you can proceed with the next step in this guide.
Follow the prompts to uninstall the program.
In the next message box, confirm the uninstall process by clicking on Uninstall, then follow the prompts to uninstall the malicious program.
Make sure to read all of the prompts carefully, because some malicious programs try to sneak things in hoping that you won’t read them closely.
Press the Windows key + I on your keyboard to open the Settings app.
Press the Windows key + I on your keyboard to open the Settings app. You can also ope the Settings app by clicking the Start button on the taskbar, then select “Settings” (gear icon).
In the Settings app, click on “Apps”.
When the “Windows Settings” window opens, click on “Apps“. By default, it should open “Apps and Features” but if it doesn’t, select it from the list on the left.
Find the malicious program in the list of installed apps and uninstall it.
In Apps & Features settings, scroll down to the app list and search for unknown or suspicious programs. To make things easier, you can sort all installed programs by their installation date. To do this, click “Sort by” and select “Install date”.
Look out for any suspicious program that could be behind all the drama – anything you don’t remember downloading or that doesn’t sound like a genuine program. When you find a malicious program, click on it and select “Uninstall” in the menu that appears.
If you have checked your computer for malicious programs and did not find any, you can proceed with the next step in this guide.
Follow the prompts to uninstall the program.
In the next message box, confirm the uninstall process by clicking on Uninstall, then follow the prompts to uninstall the malicious program.
Make sure to read all of the prompts carefully, because some malicious programs try to sneak things in hoping that you won’t read closely.
Go to “Program and Features”.
Right-click on the Start button in the taskbar, then select “Programs and Features”. This will take you directly to your list of installed programs.
Search for malicious program and uninstall it.
The “Programs and Features” screen will be displayed with a list of all the programs installed on your computer. Scroll through the list until you find any unknown or suspicious program, then click to highlight it, then click the “Uninstall” button.
Look out for any suspicious program that could be behind all the drama – anything you don’t remember downloading or that doesn’t sound like a genuine program.
If you have checked your computer for malicious programs and did not find any, you can proceed with the next step in this guide.
Follow the on-screen prompts to uninstall malicious program.
In the next message box, confirm the uninstall process by clicking on Yes, then follow the prompts to uninstall malicious program. Make sure to read all of the prompts carefully, because some malicious programs try to sneak things in hoping that you won’t read closely.
Open the “Control Panel”.
Click on the “Start” button, then click on “Control Panel“.
Click on “Uninstall a Program”.
When the “Control Panel” appears, click on “Uninstall a Program” from the Programs category.
Search for malicious programs and uninstall them.
The “Programs and Features” screen will be displayed with a list of all the programs installed on your computer. Scroll through the list until you find any suspicious or unknown program, then click to highlight it, then click the “Uninstall” button.
Look out for any suspicious program that could be behind all the drama – anything you don’t remember downloading or that doesn’t sound like a genuine program.
If you have checked your computer for malicious programs and did not find any, you can proceed with the next step in this guide.
Follow the on-screen prompts to uninstall malicious program.
In the next message box, confirm the uninstall process by clicking on Yes, then follow the prompts to uninstall malicious program. Make sure to read all of the prompts carefully, because some malicious programs try to sneak things in hoping that you won’t read closely.
If you are experiencing difficulty while attempting to uninstall a program, you can use Revo Uninstaller to completely remove the unwanted program from your computer.
Now that the malicious programs have been removed from your computer, we can proceed with the next step in this guide.
STEP 3: Reset browsers back to default settings
In this step, we will remove spam notifications, malicious extensions, and change to default any settings that might have been changed by malware. Please note that this method will remove all extensions, toolbars, and other customizations but will leave your bookmarks and favorites intact. For each browser that you have installed on your computer, please click on the browsers tab below and follow the displayed steps to reset that browser.
ChromeFirefoxMicrosoft EdgeInternet Explorer
Reset Chrome for Windows to default settings
We will now reset your Chrome browser settings to their original defaults. This will reset your startup page, new tab page, search engine, and pinned tabs. It will also disable all extensions and clear temporary data like cookies. Your favorites, history, and saved passwords will not be cleared.
Click the three dots in the top-right corner and then click on “Settings”.
Open Chrome and click on the menu button (represented by three vertical dots) in the top right corner of the window. In the dropdown menu that opens, click “Settings“.
Click “Advanced”.
Chrome’s “Settings” should now be displayed in a new tab or window, depending on your configuration. In the left sidebar, click on the “Advanced” link.
Click “Reset and clean up”.
In the left sidebar, under the “Advanced” section, click on “Reset and clean up“.
Click “Reset settings to their original defaults”.
In the main window, the “Reset and clean up” section is visible, as shown in the screenshot below. Click on “Reset settings to their original defaults“.
Click “Reset settings”.
A confirmation dialog will now be displayed, detailing the components that will be restored to their default state should you continue with the reset process. To complete the restoration process, click on the “Reset settings” button.
(Optional) Reset Chrome Data Sync.
In case a malicious extension reinstalls itself even after performing a browser reset, you have an additional option to reset the data sync for your browser. To do this, navigate to chrome.google.com/sync and click on the Clear Data button.
Reset Firefox for Windows to default settings
We will now reset your Firefox browser settings to their default. The reset feature fixes many issues by restoring Firefox to its factory default state while saving your essential information like bookmarks, passwords, web form auto-fill information, browsing history, and open tabs.
Click the three horizontal lines in the top-right corner and then click on “Help”.
Click on Firefox’s main menu button, represented by three horizontal lines. When the drop-down menu appears, select the option labeled “Help“.
Click “More troubleshooting information”.
From the Help menu, click on “More troubleshooting information“.
Click on “Refresh Firefox”
When the “Troubleshooting Information” page opens, click on the “Refresh Firefox” button.
Confirm that you want to reset your browser settings.
To finish the reset process, click on the “Refresh Firefox” button in the new confirmation window that opens.
Click “Finish”.
Firefox will now close itself and will revert to its default settings. When it’s done, a window will list the information that was imported. Click on “Finish“.
Your old Firefox profile will be placed on your desktop in a folder named “Old Firefox Data“. If the reset didn’t fix your problem you can restore some of the information not saved by copying files to the new profile that was created. If you don’t need this folder any longer, you should delete it as it contains sensitive information.
Reset Microsoft Edge to default settings
We will now reset your Microsoft Edge browser settings to their default. This will reset your startup page, new tab page, search engine, and pinned tabs. It will also disable all extensions and clear temporary data like cookies. Your favorites, history, and saved passwords will not be cleared.
Click the three dots in the top-right corner and then click on “Settings”.
In the top right corner, click on Microsoft Edge’s main menu button, represented by three horizontal dots. When the drop-down menu appears, click on “Settings“.
Click on “Reset Settings”.
On the left side of the window, click on “Reset Settings“.
Click on “Restore settings to their default values”.
In the main window, click on “Restore settings to their default values“.
Click “Reset”.
A confirmation dialog should now be displayed, detailing the components that will be restored to their default state should you continue with the reset process. To complete the restoration process, click on the “Reset” button. Microsoft Edge will now erase all your personal data, browsing history, and disable all installed extensions. Your bookmarks, though, will remain intact and still be accessible.
Reset Internet Explorer to default settings
We will now reset your Internet Explorer browser settings to their default. You can reset Internet Explorer settings to return them to the state they were in when Internet Explorer was first installed on your computer.
Go to “Internet Options”.
Open Internet Explorer, click on the gear icon in the upper-right part of your browser, then select “Internet Options“.
Select the “Advanced” tab, then click “Reset”
In the “Internet Options” dialog box, select the “Advanced” tab, then click on the “Reset” button.
Click on “Reset”.
In the “Reset Internet Explorer settings” section, select the “Delete personal settings” checkbox, then click on the “Reset” button.
Click on “Close”.
When Internet Explorer has completed its task, click on the “Close” button in the confirmation dialogue box. Close your browser and then you can open Internet Explorer again.
STEP 4: Use Malwarebytes to remove for Trojans and Unwanted Programs
In this next step, we will we will install Malwarebytes to scan and remove any infections, adware, or potentially unwanted programs that may be present on your computer.
Malwarebytes stands out as one of the leading and widely-used anti-malware solutions for Windows, and for good reason. It effectively eradicates various types of malware that other programs often overlook, all at no cost to you. When it comes to disinfecting an infected device, Malwarebytes has consistently been a free and indispensable tool in the battle against malware. We highly recommend it for maintaining a clean and secure system.
Download Malwarebytes for Windows
You can download Malwarebytes by clicking the link below.
After the download is complete, locate the MBSetup file, typically found in your Downloads folder. Double-click on the MBSetup file to begin the installation of Malwarebytes on your computer. If a User Account Control pop-up appears, click “Yes” to continue the Malwarebytes installation.
Follow the On-Screen Prompts to Install Malwarebytes
When the Malwarebytes installation begins, the setup wizard will guide you through the process.
You’ll first be prompted to choose the type of computer you’re installing the program on—select either “Personal Computer” or “Work Computer” as appropriate, then click on Next.
Malwarebytes will now begin the installation process on your device.
When the Malwarebytes installation is complete, the program will automatically open to the “Welcome to Malwarebytes” screen.
On the final screen, simply click on the Open Malwarebytes option to start the program.
Enable “Rootkit scanning”.
Malwarebytes Anti-Malware will now start, and you will see the main screen as shown below. To maximize Malwarebytes’ ability to detect malware and unwanted programs, we need to enable rootkit scanning. Click on the “Settings” gear icon located on the left of the screen to access the general settings section.
In the settings menu, enable the “Scan for rootkits” option by clicking the toggle switch until it turns blue.
Now that you have enabled rootkit scanning, click on the “Dashboard” button in the left pane to get back to the main screen.
Perform a Scan with Malwarebytes.
To start a scan, click the Scan button. Malwarebytes will automatically update its antivirus database and begin scanning your computer for malicious programs.
Wait for the Malwarebytes scan to complete.
Malwarebytes will now scan your computer for browser hijackers and other malicious programs. This process can take a few minutes, so we suggest you do something else and periodically check the status of the scan to see when it is finished.
Quarantine detected malware
Once the Malwarebytes scan is complete, it will display a list of detected malware, adware, and potentially unwanted programs. To effectively remove these threats, click the “Quarantine” button.
Malwarebytes will now delete all of the files and registry keys and add them to the program’s quarantine.
Restart your computer.
When removing files, Malwarebytes may require a reboot to fully eliminate some threats. If you see a message indicating that a reboot is needed, please allow it. Once your computer has restarted and you are logged back in, you can continue with the remaining steps.
STEP 5: Use HitmanPro to remove Rootkits and other Malware
In this fifth step, while the computer is in normal back, we will download and run a scan with HitmanPro to remove Trojans, rootkits, and other malicious programs.
HitmanPro is a second-opinion scanner that takes a unique cloud-based approach to malware scanning. HitmanPro scans the behavior of active files and also files in locations where malware normally resides for suspicious activity. If it finds a suspicious file that’s not already known, HitmanPro sends it to its clouds to be scanned by two of the best antivirus engines today, which are Bitdefender and Kaspersky.
Although HitmanPro is shareware and costs $24.95 for 1 year on 1 PC, there is no limit on scanning. The limitation only kicks in when there is a need to remove or quarantine detected malware by HitmanPro on your system and by then, you can activate the one-time 30-days trial to enable the cleanup.
Download HitmanPro.
You can download HitmanPro by clicking the link below.
HITMANPRO DOWNLOAD LINK (The above link will open a new web page from where you can download HitmanPro)
Install HitmanPro.
When HitmanPro has finished downloading, double-click on “hitmanpro.exe” (for 32-bit versions of Windows) or “hitmanpro_x64.exe” (for 64-bit versions of Windows) to install this program on your computer. In most cases, downloaded files are saved to the Downloads folder.
You may be presented with a User Account Control pop-up asking if you want to allow HitmanPro to make changes to your device. If this happens, you should click “Yes” to continue with the installation.
Follow the on-screen prompts.
When HitmanPro starts you will be presented with the start screen as shown below. Click on the “Next” button to perform a system scan.
Wait for the HitmanPro scan to complete.
HitmanPro will now begin to scan your computer for malicious programs.
Click on “Next”.
When HitmanPro has finished the scan, it will display a list of all the malware that it has found. Click on the “Next” button to have HitmanPro remove the detected items.
Click on “Activate free license”.
HitmanPro may now require to activate the free 30-days trial to remove the malicious files. To do this, click on the “Activate free license” button to begin the free 30 days trial and remove all the malicious files from your computer.
When the malware removal process is complete, it will display a screen that shows the status of the various programs that were removed. At this screen, you should click on the Next button and then if prompted you should click on the Reboot button. If HitmanPro does not prompt you to reboot, please just click on the Close button.
STEP 6: Use AdwCleaner to remove Malicious Browser Policies and Adware
In this next step, we will use AdwCleaner to remove malicious browser policies and unwanted browser extensions from your computer.
AdwCleaner is a free popular on-demand scanner that can detect and remove malware that even the most well-known anti-virus and anti-malware applications fail to find. This on-demand scanner includes a lot of tools that can be used to fix the side effects of adware. browser hijackers and other malware.
Download AdwCleaner.
You can download AdwCleaner by clicking the link below.
ADWCLEANER DOWNLOAD LINK (The above link will open a new web page from where you can download AdwCleaner)
Double-click on the setup file.
Double-click on the file named “adwcleaner_x.x.x.exe” to start AdwCleaner. In most cases, downloaded files are saved to the Downloads folder.
AdwCleaner program will now open and you will be presented with the program’s license agreement. After you read it, click on the I agree button if you wish to continue. If Windows prompts you as to whether or not you wish to run AdwCleaner, please allow it to run.
Enable “Reset Chrome policies” to remove malicious browser policies.
When AdwCleaner starts, on the left side of the window, click on “Settings” and then enable “Reset Chrome policies“.
Click on the “Scan” button.
On the left side of the AdwCleaner window, click on “Dashboard” and then click “Scan” to perform a computer scan.
Wait for the AdwCleaner scan to finish.
AdwCleaner will now scan your computer for malware. This process can take a few minutes.
Click on “Quarantine” to remove malware.
When the AdwCleaner scan is completed it will display all of the items it has found. Click on the “Quarantine” button to remove the malicious programs from your computer.
Click on “Continue” to remove the malicious programs.
AdwCleaner will now prompt you to save any open files or data as the program will need to close any open programs before it starts to clean. Click on the “Continue” button to finish the removal process.
AdwCleaner will now delete all detected malware from your computer. When the malware removal process is complete, you may be asked to restart your computer.
STEP 7: Perform a final check with ESET Online Scanner
This final step involves installing and running a scan with ESET Online Scanner to check for any additional malicious programs that may be installed on the computer..
ESET Online Scanner is a free second-opinion scanner, designed to rescue your computer from malware (viruses, trojans, rootkits, etc.) that have infected your computer despite all the security measures you have taken (such as anti-virus software, firewalls, etc.).
Download ESET Online Scanner.
You can download ESET Online Scanner by clicking the link below.
Double-click on esetonlinescanner.exe to run the installer.
When ESET Online Scanner has finished downloading, double-click on “esetonlinescanner.exe” to install it program on your computer. In most cases, downloaded files are saved to the Downloads folder.
Install ESET Online Scanner.
When ESET Online Scanner starts you will be presented with the start screen as shown below. Select your desired language from the drop-down menu and click Get started.
In the Terms of use screen, click Accept.
Select your preference for the Customer Experience Improvement Program and the Detection feedback system and click Continue.
Start a Full Scan with ESET Online Scanner
Click on Full Scan to perform an in-depth inspection of the entire computer.
Select Enable for Detection of Potentially Unwanted Applications, then click Start scan.
Wait for the ESET Online Scanner scan to finish.
ESET Online Scanner will now begin to scan your computer for malware. This process can take quite a while, so we suggest you do something else and periodically check on the status of the scan to see when it is finished.
ESET Online Scanner will automatically remove the malicious files.
At the end of the scan, the Found and resolved detections screen will be displayed. You can click View detailed results to view specific information. Detected threats are automatically cleaned and quarantined.
Your computer should now be free of Trojan Viruses and other malware.
If your current antivirus allowed this malicious program on your computer, you may want to consider purchasing the full-featured version of Malwarebytes Anti-Malware to protect against these types of threats in the future. If you are still having problems with your computer after completing these instructions, then please follow one of the steps:
Profiles are used by IT admins in businesses to control the behavior of their Macs. These profiles can configure a Mac to do many different things, some of which are not otherwise possible. When it comes to home users, adware and browser hijackers are using the configuration profile to prevent users from removing malicious programs from the computer. This also prevents the user from changing that behavior in the browser’s settings.
In this first step, we will check your computer to see if any configuration profiles are installed. To do this, follow the below steps:
Open “System Preferences”
From the Apple menu, select System Preferences.
Search for “Profiles”
When the System Preferences window opens, search for the Profiles icon.
If there isn’t a Profiles icon, you don’t have any profiles installed, which is normal and you can continue with the next steps.
Remove the malicious profiles
If there’s a Profile icon, click on it and select any suspicious profile that you want to remove, and then press the – (minus) button. Click Remove to remove the profile.
STEP 2: Delete malicious apps
In this second step, we will try to identify and remove any malicious apps and files that might be installed on your computer. Sometimes redirects or adware programs can have usable Uninstall entries that can be used to remove these programs.
Quit the malicious programs
On the Apple menu bar, in the top-right corner, if you see any unknown or suspicious icon, click on it and then select Quit.
Open “Finder”
Click the Finder application on your dock.
Click on “Applications”
In the Finder left pane, click on “Applications“.
Find and remove the malicious app.
The “Applications” screen will be displayed with a list of all the apps installed on your device. Scroll through the list until you find the malicious app, right-click it, and then click “Move to Trash”.
Look out for any suspicious program that could be behind all the drama – anything you don’t remember downloading or that doesn’t sound like a genuine program. Here are some known malicious programs: SearchMine, TakeFresh, TopResults, FeedBack, ApplicationEvents, GeneralOpen, PowerLog, MessengerNow, ImagePrime, GeneralNetSearch, Reading Cursors, GlobalTechSearch, PDFOnline-express, See Scenic Elf, MatchKnowledge, Easy Speedtest, or WebDiscover.
Click “Empty Trash”
On the dock, right-click on the trash icon and select “Empty Trash”. Doing so deletes the Trash’s contents, including the program that you just sent to the Trash.
Find and remove the malicious files
Click the desktop to make sure you’re in the Finder, choose “Go” then click on “Go to Folder“.
Type or copy/paste each of the below paths into the window that opens, then click Go.
/Library/LaunchAgents
~/Library/LaunchAgents
/Library/Application Support
/Library/LaunchDaemons
Look out for any suspicious files that could be behind all the drama – anything you don’t remember downloading or that doesn’t sound like a genuine program. These are some known malicious files: “com.adobe.fpsaud.plist” “installmac.AppRemoval.plist”, “myppes.download.plist”, “mykotlerino.ltvbit.plist”, or “com.myppes.net-preferences.plist”. When you find a malicious file move it to the Trash.
STEP 3: Reset browsers back to default settings
In this third step, we will remove spam push notifications and malicious extensions, and change to default any settings that might have been changed by malware. For each browser that you have installed on your computer, please click on the tab below and follow the displayed steps to reset that browser.
Safari BrowserChrome for Mac BrowserFirefox for Mac Browser
Remove malicious extensions and settings from Safari
To remove malware from Safari we will check if there are any malicious extensions installed on your browser and what settings have been changed by this malicious program.
Go to Safari’s “Preferences”.
On the menu bar, click the “Safari” menu and select “Preferences”.
Check Homepage.
This will open a new window with your Safari preferences, opened to the “General” tab. Some browser hijackers may change your default homepage, so in the Homepage field make sure it’s a web page you want to use as your start-up page.
Click “Extensions”
Next, click on the “Extensions” tab.
Find and uninstall malicious extensions.
The “Extensions” screen will be displayed with a list of all the extensions installed on Safari. Look out for any suspicious browser extension that could be behind all the drama – anything you don’t remember downloading or that doesn’t sound like a genuine extension. By default, there are no extensions installed on Safari so it’s safe to remove an extension
Remove spam notifications ads
Click Preferences, click Websites, then click Notifications. Deselect “Allow websites to ask for permission to send push notifications”.
Remove all data stored by websites on your computer.
In the Safari menu, choose “Preferences…”, select “Privacy” at the top of the new window that appears, and then click the “Manage Website Data” button.
In the next dialog box, click “Remove All“. It will ask you if you are sure you want to remove all data stored by websites on your computer. Select “Remove Now” to clear data that could be used to track your browsing.
Empty Safari Caches.
From your Safari menu bar, click Safari and select Preferences, then select the Advanced tab. Enable the checkbox to “Show Develop menu in menu bar“.
From the menu bar select Develop, then click on Empty Caches as seen in the image below.
Remove malware from Chrome for Mac
To remove malware from Chrome for Mac we will reset the browser settings to their default. Doing these steps will erase all configuration information from Chrome such as your home page, tab settings, saved form information, browsing history, and cookies. This process will also disable any installed extensions. All of your bookmarks, though, will be preserved.
Click on the three dots at the top right and go to Settings.
Click on Chrome’s main menu button, represented by three dots at the top right corner. Now click on the menu option labeled Settings as shown by the arrow in the picture below, which will open the basic settings screen.
In the left sidebar, click on the “Reset and Cleanup” option.
In the left sidebar, click on “Reset and clean up“.
Click “Reset settings to their original defaults”.
Now click on the “Reset settings to their original defaults”. link as shown in the image below.
Click “Reset Settings” button.
A confirmation dialog should now be displayed, detailing the components that will be restored to their default state should you continue with the reset process. To complete the restoration process, click on the “Reset Settings” button.
(Optional) Reset Chrome Data Sync.
In case a malicious extension reinstalls itself even after performing a browser reset, you have an additional option to reset the data sync for your browser. To do this, navigate to chrome.google.com/sync and click on the Clear Data button.
Remove malware from Firefox for Mac
To remove malware from Firefox for Mac we will reset the browser settings to its default. The reset feature fixes many issues by restoring Firefox to its factory default state while saving your essential information like bookmarks, passwords, web form auto-fill information, browsing history, and open tabs.
Go to the “Help” menu.
Click on Firefox’s main menu button, represented by three horizontal lines. When the drop-down menu appears, select the option labeled “Help“.
Click “Troubleshooting Information”.
Next click on the “Troubleshooting Information” option as indicated by the arrow in the image below. This will bring you to a Troubleshooting page.
Click on “Refresh Firefox”
Click the “Refresh Firefox” button in the upper-right corner of the “Troubleshooting Information” page.
Confirm.
To continue, click on the “Refresh Firefox” button in the new confirmation window that opens.
Click on “Finish”.
Firefox will close itself and will revert to its default settings. When it’s done, a window will list the information that was imported. Click on the “Finish“.
Your old Firefox profile will be placed on your desktop in a folder named “Old Firefox Data“. If the reset didn’t fix your problem you can restore some of the information not saved by copying files to the new profile that was created. If you don’t need this folder any longer, you should delete it as it contains sensitive information.
STEP 4: Run a scan with Malwarebytes for Mac to remove malware
In this final step, we will scan the computer with Malwarebytes for Mac to find and remove any malicious programs that might be installed on your Mac.
Malwarebytes for Mac is an on-demand scanner that can destroy many types of malware that other software tends to miss without costing you absolutely anything. When it comes to cleaning up an infected device, Malwarebytes has always been free, and we recommend it as an essential tool in the fight against malware.
Download Malwarebytes for Mac.
You can download Malwarebytes for Mac by clicking the link below.
When Malwarebytes has finished downloading, double-click on the setup file to install Malwarebytes on your computer. In most cases, downloaded files are saved to the Downloads folder.
Follow the on-screen prompts to install Malwarebytes.
When the Malwarebytes installation begins, you will see the Malwarebytes for Mac Installer which will guide you through the installation process. Click “Continue“, then keep following the prompts to continue with the installation process.
When your Malwarebytes installation completes, the program opens to the Welcome to Malwarebytes screen. Click the “Get started” button.
Select “Personal Computer” or “Work Computer”.
The Malwarebytes Welcome screen will first ask you what type of computer are you installing this program, click either Personal Computer or Work Computer.
Click on “Scan”.
To scan your computer with Malwarebytes, click on the “Scan” button. Malwarebytes for Mac will automatically update the antivirus database and start scanning your computer for malware.
Wait for the Malwarebytes scan to complete.
Malwarebytes will scan your computer for adware, browser hijackers, and other malicious programs. This process can take a few minutes, so we suggest you do something else and periodically check on the status of the scan to see when it is finished.
Click on “Quarantine”.
When the scan has been completed, you will be presented with a screen showing the malware infections that Malwarebytes has detected. To remove the malware that Malwarebytes has found, click on the “Quarantine” button.
Restart computer.
Malwarebytes will now remove all the malicious files that it has found. To complete the malware removal process, Malwarebytes may ask you to restart your computer.
Your Mac should now be free of Trojan Viruses and other malware.
If your current antivirus allowed a malicious program on your computer, you might want to consider purchasing the full-featured version of Malwarebytes Anti-Malware to protect against these types of threats in the future. If you are still experiencing problems while trying to remove a malicious program from your computer, please ask for help in our Mac Malware Removal Help & Support forum.
Removal Instructions for Android
Remove Trojan Viruses from Android
To remove Trojan Viruses and other malware from your phone or tablet, follow these steps:
In this first step, we will check if any malicious apps are installed on your phone. Sometimes browser hijackers or adware apps can have usable Uninstall entries that can be used to remove these apps.
Open the “Settings” menu.
Tap on the “Settings” app from your phone menu or home screen.
Tap on “Apps”.
When the “Settings” menu opens, tap on “Apps” (or “App Manager”) to see all the installed applications on your phone.
Find the malicious app.
The “Apps” screen will be displayed with a list of all the applications that are installed on your phone. Scroll through the list and look out for any suspicious app that could be behind all the drama – anything you don’t remember downloading or that doesn’t sound like a genuine program. Most often, cyber criminals hide malware inside video or photo editing apps, weather apps, and camera apps.
Uninstall the malicious app
When you find a suspicious or malicious app, tap on it to uninstall it. This won’t start the app but will open up the app details screen. If the app is currently running press the “Force stop” button, then tap on “Uninstall”.
A confirmation dialog should be displayed to confirm you want to uninstall the app, tap on “OK” to remove the malicious app from your phone.
STEP 2: Reset browsers back to default settings
In this second step, we will reset your browser to its default settings to remove spam notifications, unwated search redirects, and restore its factory settings
Resetting the browser settings to their default it’s an easy task on Windows or Mac computers; however, when it comes to Android, this can’t be done directly because it’s not an option built-in into the browser settings. Restoring the browser settings on Android can be done by clearing the application data. This will remove all the cookies, cache, and other site settings that may have been saved. So let’s see how we can restore your browser to its factory settings.
Chrome for AndroidFirefoxOperaSamsung Internet BrowserMicrosoft Edge
Remove malware from Chrome for Android
To reset Chrome for Android to its default settings, follow the below steps:
Open the “Settings” menu.
Tap on the “Settings” app from your phone menu or home screen.
Tap on “Apps”.
When the “Settings” menu opens, tap on “Apps” (or “App Manager”) to see all the installed applications on your phone.
Find and tap on Chrome.
The “Apps” screen will be displayed with a list of all the apps installed on your phone. Scroll through the list until you find the Chrome app, then tap on it to open the app’s details.
Tap “Storage”.
When Chrome’s app info menu is displayed, tap on “Storage“.
Tap “Manage Space”.
Under the storage settings, you will get two options — Manage Space and Clear Cache. Tap on “Manage Space“.
Tap “Clear all data”.
Tap “Clear all data” to delete all Chrome’s data including accounts, bookmarks, and your settings to reset the default settings.
Confirm by tapping “Ok”.
A confirmation dialog should now be displayed, detailing the components that will be restored to their default state should you continue with the reset process. To complete the restoration process, tap “Ok“.
Remove malware from Firefox for Android
To reset Firefox for Android to its default settings, follow the below steps:
Open the “Settings” menu.
Tap on the “Settings” app from your phone menu or home screen.
Tap on “Apps”.
When the “Settings” menu opens, tap on “Apps” (or “App Manager”) to see all the installed applications on your phone.
Find and tap on Firefox.
The “Apps” screen will be displayed with a list of all the apps installed on your phone. Scroll through the list until you find the Firefox app, then tap on it to open the app’s details.
Tap “Storage”.
When Firefox’s app info menu is displayed, tap on “Storage“.
Tap “Manage Space”.
Under the storage settings, you will get two options — Manage Space and Clear Cache. Tap on “Manage Space“.
Tap “Clear all data”.
Tap “Clear all data” to delete all Firefox data including accounts, bookmarks, and your settings to reset the default settings.
Confirm by tapping “Ok”.
A confirmation dialog should now be displayed, detailing the components that will be restored to their default state should you continue with the reset process. To complete the restoration process, tap “Ok“.
Remove malware from the Opera browser
To reset the Opera browser to its default settings, follow the below steps:
Open the “Settings” menu.
Tap on the “Settings” app from your phone menu or home screen.
Tap on “Apps”.
When the “Settings” menu opens, tap on “Apps” (or “App Manager”) to see all the installed applications on your phone.
Find and tap on Opera.
The “Apps” screen will be displayed with a list of all the apps installed on your phone. Scroll through the list until you find the Opera app, then tap on it to open the app’s details.
Tap “Storage”.
When Opera’s app info menu is displayed, tap on “Storage“.
Tap “Manage Space”.
Under the storage settings, you will get two options — Manage Space and Clear Cache. Tap on “Manage Space“.
Tap “Clear all data”.
Tap “Clear all data” to delete all Opera’s data including accounts, bookmarks, and your settings to reset the default settings.
Confirm by tapping “Ok”.
A confirmation dialog should now be displayed, detailing the components that will be restored to their default state should you continue with the reset process. To complete the restoration process, tap “Ok“.
Remove malware from Samsung Internet Browser
To reset the Samsung Internet Browser to its default settings, follow the below steps:
Open the “Settings” menu.
Tap on the “Settings” app from your phone menu or home screen.
Tap on “Apps”.
When the “Settings” menu opens, tap on “Apps” (or “App Manager”) to see all the installed applications on your phone.
Find and tap on Samsung Internet Browser.
The “Apps” screen will be displayed with a list of all the apps installed on your phone. Scroll through the list until you find the Samsung Internet Browser app, then tap on it to open the app’s details.
Tap “Storage”.
When the Samsung Internet Browser’s app info menu is displayed, tap on “Storage“.
Tap “Manage Space”.
Under the storage settings, you will get two options — Manage Space and Clear Cache. Tap on “Manage Space“.
Tap “Clear all data”.
Tap “Clear all data” to delete all Samsung Internet Browser’s data including accounts, bookmarks, and your settings to reset the default settings.
Confirm by tapping “Ok”.
A confirmation dialog should now be displayed, detailing the components that will be restored to their default state should you continue with the reset process. To complete the restoration process, tap “Ok“.
Remove malware from Microsoft Edge for Android
To reset the Microsoft Edge for Android to its default settings, follow the below steps:
Open the “Settings” menu.
Tap on the “Settings” app from your phone menu or home screen.
Tap on “Apps”.
When the “Settings” menu opens, tap on “Apps” (or “App Manager”) to see all the installed applications on your phone.
Find and tap on Microsoft Edge.
The “Apps” screen will be displayed with a list of all the apps installed on your phone. Scroll through the list until you find the Microsoft Edge app, then tap on it to open the app’s details.
Tap “Storage”.
When the Microsoft Edge’s app info menu is displayed, tap on “Storage“.
Tap “Manage Space”.
Under the storage settings, you will get two options — Manage Space and Clear Cache. Tap on “Manage Space“.
Tap “Clear all data”.
Tap “Clear all data” to delete all Microsoft Edge’s data including accounts, bookmarks, and your settings to reset the default settings.
Confirm by tapping “Ok”.
A confirmation dialog should now be displayed, detailing the components that will be restored to their default state should you continue with the reset process. To complete the restoration process, tap “Ok“.
STEP 3: Use Malwarebytes for Android to remove malicious apps
In this final step, we will install Malwarebytes for Android to scan and remove malicious apps from your phone or tablet.
Malwarebytes for Android automatically detects and removes dangerous threats like malware and ransomware so you don’t have to worry about your most-used device being compromised. Aggressive detection of adware and potentially unwanted programs keeps your Android phone or tablet running smooth.
Download Malwarebytes for Android.
You can download Malwarebytes for Android by clicking the link below.
In the Google Play Store, tap “Install” to install Malwarebytes for Android on your device.
When the installation process has finished, tap “Open” to begin using Malwarebytes for Android. You can also open Malwarebytes by tapping on its icon in your phone menu or home screen.
Follow the on-screen prompts to complete the setup process
When Malwarebytes will open, you will see the Malwarebytes Setup Wizard which will guide you through a series of permissions and other setup options. This is the first of two screens that explain the difference between the Premium and Free versions. Swipe this screen to continue. Tap on “Got it” to proceed to the next step. Malwarebytes for Android will now ask for a set of permissions that are required to scan your device and protect it from malware. Tap on “Give permission” to continue. Tap on “Allow” to permit Malwarebytes to access the files on your phone.
Update database and run a scan with Malwarebytes for Android
You will now be prompted to update the Malwarebytes database and run a full system scan.
Click on “Update database” to update the Malwarebytes for Android definitions to the latest version, then click on “Run full scan” to perform a system scan.
Wait for the Malwarebytes scan to complete.
Malwarebytes will now start scanning your phone for adware and other malicious apps. This process can take a few minutes, so we suggest you do something else and periodically check on the status of the scan to see when it is finished.
Click on “Remove Selected”.
When the scan has been completed, you will be presented with a screen showing the malware infections that Malwarebytes for Android has detected. To remove the malicious apps that Malwarebytes has found, tap on the “Remove Selected” button.
Restart your phone.
Malwarebytes for Android will now remove all the malicious apps that it has found. To complete the malware removal process, Malwarebytes may ask you to restart your device.
Your phone or tablet should now be free of Trojan Viruses and other malware.
If your current antivirus allowed a malicious app on your phone, you may want to consider purchasing the full-featured version of Malwarebytes to protect against these types of threats in the future. If you are still having problems with your phone after completing these instructions, then please follow one of the steps:
Restore your phone to factory settings by going to Settings > General management > Reset > Factory data reset.
Preventing trojan viruses from ever gaining a foothold is just as critical as removing existing ones. Follow cyber hygiene best practices:
Maintain updated antivirus, firewall, and anti-malware software. Schedule regular scans.
Never open email attachments or click links from random or suspicious messages.
Avoid downloading programs from unofficial sites – stick to reputable sources only.
Install browser extensions like ScriptSafe to block untrusted code on pages.
Make periodic backups of your operating system and files in case you need to reset your computer.
Be wary of public USB charging stations which could deploy USB trojan virus infections.
Layers of proactive precautions will greatly minimize vulnerabilities that trojan viruses exploit to infiltrate systems and proliferate.
Frequently Asked Questions on Trojan Viruses
Trojan viruses employ devious tricks to infect computers undetected. This FAQ answers common questions on how trojan viruses work, how to remove them, and how to stay protected.
What are the most common ways trojan viruses spread?
Fake downloads, malicious email attachments, compromised sites, infected USB drives, and worm propagation via networks are some of the most common infection methods.
What are signs my device has a trojan virus?
Unfamiliar processes running, antivirus alerts, disabled security settings, system slowdowns, frequent crashes, network spikes, and corrupted files are potential indicators.
What sensitive data are trojan viruses trying to steal?
Keyloggers and clipboard scraping aim to steal passwords, bank/credit card details, social security numbers, private documents, emails, and any other valuable info.
Can a trojan virus take over my webcam and spy on me?
Yes, trojan viruses can covertly activate webcams and microphones to spy on victims without their knowledge once installed.
How do trojan viruses hide themselves so well from antivirus?
They use rootkit techniques to conceal themselves in system folders, registries, and processes under stealthy names. This makes detection harder.
How do I fully remove a trojan virus infection?
Layer antivirus scans, anti-malware cleaning, monitor traffic, reinstall affected programs, reset system configurations, and reformat from a clean OS backup if needed.
Is completely removing an advanced trojan virus infection difficult?
Yes, the most sophisticated strains require persistence and a combination of tools to fully erase due to their embedding capabilities.
Can my iPhone or Android get infected by a trojan virus?
Yes, trojan viruses can infect iOS and Android devices, though Apple and Google app vetting make this less common than on Windows. Still risky though.
Should I avoid opening email attachments to protect against trojan viruses?
Definitely – opening attachments from any suspicious or unknown sender is extremely high-risk and a common trojan virus infection tactic.
What’s the best way to prevent trojan virus infections in the future?
Always install software only from official sources, don’t click random links or pop-ups, scan downloads with antivirus, avoid piracy sites, and maintain security tools.
By understanding their distribution methods and removal techniques, users can avoid falling victim to dangerous trojan virus infections. Prevention is always the best defense against malware.
The Bottom Line
Trojan viruses employ deceptive tricks straight from ancient mythology to disguise themselves as legitimate software and bypass security controls – only to unleash malicious actions from within compromised computers.
Spotting the subtle indicators of trojan virus infections and leveraging antivirus, anti-malware, monitoring, reinstalling programs, and system backups allows you to seek out and destroy even advanced trojan virus strains.
Vigilant cyber hygiene practices provide critical prevention to keep these insidious threats locked out of your devices and networks. With proper precautions and removal methods in place, trojan viruses need not be your Achilles’ heel.
Meet Stelian Pilici
Stelian leverages over a decade of cybersecurity expertise to lead malware analysis and removal, uncover scams, and educate people. His experience provides insightful analysis and valuable perspective.
Remove Trojan Viruses from Windows
Remove Trojan Viruses from Windows
Remove Trojan Viruses from Mac
Remove Trojan Viruses from Android
