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Remove We have detected a Trojan virus (Removal Guide) - Microsoft Support Scam

removal by Olivia Morelli - - | Type: Adware

We have detected a Trojan virus – a typical browser scam that tries to intimidate users by claiming virus infections

We have detected a Trojan virus
We have detected a Trojan virus is a browser-based scam that claims fake malware infection in order to make users download PUPs

We have detected a Trojan virus is a fake alert that users might encounter on Google Chrome, Mozilla Firefox, Internet Explorer, or any other browser. The pop-up message claims that your computer is allegedly infected with b.TESLA_bankSTEALER, E.tre456_worm or other malware, and that immediate action is required in order to stop the devastating consequences like money and personal information disclosure to cybercriminals. In reality, We have detected a Trojan virus is nothing but a scam that should not be interacted with.

Crooks behind the scam use a well-known social engineering[1] technique of intimidation and count on users who are less familiar with malware and computer operation techniques. Additionally, We have detected a Trojan virus hoax also impersonates a well-known theme of Microsoft or Apple, implementing logos and web design of the tech giants. As evident, it is all fake and done to make victims believe that the party showing these fake notifications is a trusted company.

Name We have detected a Trojan virus
Type Scam
Category Fake alerts, redirects, intrusive ads and other symptoms might indicate adware infection
Scam family Your system is infected with 3 viruses, IMMEDIATE ACTION REQUIRED
Related fake virus names  b.TESLA_bankSTEALER, E.tre456_wormTapsnake CronDNS, Dubfishicv
Infiltration  Users might start seeing fake alerts and redirects to suspicious sites due to adware infection. Nevertheless, they might encounter scam content after being redirected from another malicious site
Symptoms 
  • Intrusive ads show up on all sites that users visit
  • Some pages struggle to load properly
  • Redirects bring users to phishing, scam and similar dangerous sites
  • Web browser alternations (changes seen in homepage, new tab, search engine)
  • Slowdown of the web browser operation
  • Unwanted browser extensions/apps installed without permission
Risks Money loss, installation of other unwanted programs, personal data disclose to unknown parties or cybercriminals
Termination If no computer infections are present, users should simply close down the tab that shows We have detected a Trojan virus scam message. However, it is mandatory to check the machine for adware – either by following our manual removal guide below or by scanning the machine with anti-malware software
Recovery & optimization For best results, we suggest scanning your computer with Reimage Reimage Cleaner – it can remedy the system that has been damaged by adware or malware infections

We have detected a Trojan virus prompts might be triggered upon landing on one of the predetermined websites by accident, or be redirected by adware. The latter is known to deliver users intrusive pop-ups, in-text links, deals, offers, and other ads and install without acquiring proper permission from computer owners. Thus, while ignoring We have detected a Trojan virus alerts is the right thing to do, adware-induced redirects may need a much further investigation and actions to be taken for better online security.

Adware is usually installed with freeware/shareware applications from third-party sites – the developers incorporate optional components into installers without adequately disclosing them to end-users. This is done deliberately, as each of the installs provides profits from affiliates. Unfortunately, users then end up with potentially unwanted programs on their machines, which result in them being exposed to such online scams like We have detected a Trojan virus.

Most of the users who simply happened to stumble upon We have detected a Trojan virus scam should not pay attention to it and never download any suggest programs. We have detected a Trojan virus removal is only needed if the adware is also involved. To check that, we recommend following our instructions below or scanning the machine with anti-malware software. If PUPs are detected, they should be immediately terminated. To recover from unwanted consequences like program crashes or system slowdowns after adware infections, we suggest using Reimage Reimage Cleaner .

We have detected a Trojan virus scam
We have detected a Trojan virus is a scam the belongs to the notorious "Your system is infected with 3 viruses" scheme

The anatomy We have detected a Trojan virus scam

We have detected a Trojan virus belongs to one of the largest scam families around – Your system is infected with 3 viruses. This multi-stage social engineering attack usually begins with adware that directs users to potentially dangerous websites (nevertheless, some might simply land on the dangerous page by accident). In most of the cases, the domain names try to use words that are related to tech giants such as Microsoft or Apple – this is another social engineering trick.

Despite means how users end up on unsafe sites like Apple.com-mac-optimizing.live, Microsoft-live-update.com, the content remains the same, and the pop-up message that immediately shows up reads:

IMMEDIATE ACTION REQUIRED

We have detected a trojan virus (b.TESLA_bankSTEALER) on your PC.

Press OK to begin the repair process

Because crooks behind We have detected a trojan virus scam try to impersonate Microsoft, some users might believe these fake claims. However, it is important to notice that the domain name does not, in fact, comes from Microsoft. The real website would only include “microsoft.com” without any additional words – this is simply a way to confuse less experienced users.

Upon pressing OK, users would be presented with a threatening message, claiming that multiple viruses have already infected the system and that some of it are damaged. Malicious actors also come up with bogus timers that add to tension users may experience – it creates a sense of urgency and the need to act fast. Unfortunately, that is the worst thing that users who encounter We have detected a trojan virus scam can do, as they will be prompted to download bogus software to allegedly remove viruses found on the machine.

In most of the cases, the offered software is useless scareware[2] that will ask you to spend money on its full license after showing you more fake scan results, claiming damage to the computer. Do not download, install, or buy this software – it is a scam, and We have detected a trojan virus fake alert is used as a means to install PUPs or malware on your machine.

While there is a low chance that your system is infected with a trojan or something even more sinister, you should perform some checks just to be sure. Thus, the following actions to be taken after encountering We have detected a Trojan virus scam:

  • Do not interact with the fake site and do not press the “Scan Now” button;
  • Do not download anything suggested on the site;
  • Close down the browser or the tab the malicious site content was displayed;
  • Check our manual removal guide for PUPs below – you might be able to find unwanted apps installed by yourself;
  • Scan your computer with anti-malware software;
  • If adware or other infections are found, reset all the installed browsers.

Finally, adware or malware that induce We have detected a Trojan virus redirects might cause damage to your system, which might start crashing or showing error messages. To avoid that, we recommend maintaining system stability with Reimage Reimage Cleaner .

We have detected a Trojan virus fake alert
We have detected a Trojan virus prompts users to download scareware apps that might ask to pay for a full version or damage the machine by deleting useful files

Do not get tricked by software bundle packages and avoid adware infiltration

Experts[3] say that there are two different ways how adware might have ended up on your computer: you either installed it along with other software from third-party sites or you installed it deliberately without known that the app is ad-supported. If the latter is the case, we advise you to read up program reviews online before downloading anything, as they can often indicate if the app engages in dodgy practices post-installation.

Whoever, in most of the cases, users install PUPs with freeware, as they rarely pay close attention to the installation process of new programs. Unfortunately, but third-parties are happy to abuse this fact and often insert optional components into a single software package. While there is nothing illegal about offering users promotions, the way it is done matters a lot.

Unsolicited installation of software is something that is considered to be malicious behavior. Nevertheless, third-parties often can disguise by claiming that all the information was presented during the installation – and, technically, they will be correct. Software bundling often uses pre-ticked boxes, deceptive deals, misplaced buttons, and other techniques to make users miss the PUP. This way, they install adware on their systems without realizing it.

To avoid that, you should always pay close attention to the installation process of third party applications – uncheck all the boxes, decline all the deals, watch out for deceptive button placements and always opt for Advanced/Custom settings. Another important step is to stay away from pirated software and cracks – these can result in such dangerous threat infections like ransomware.[4]

We have detected a Trojan virus elimination guide

We have detected a Trojan virus removal depends on whether or not your system is infected with adware. Because PUPs travel in software bundles, you might not even be aware that your machine is affected in the first place. Nevertheless, finding the unwanted programs on the computer might be a challenge to some, especially if they use dozens of browser extensions from unknown origin or applications downloaded from less secure sites.

Therefore, we advise you to check your computer with anti-malware software if you are not that familiar with IT practices in order to avoid the uninstallation of the application that is actually needed. If you are confident enough – check the detailed instructions below and remove We have detected a Trojan virus adware yourself. Note that, if your system is clean, you should simply ignore the fake alert and never install anything offered on scam sites, although keeping a reliable security tool on the system is mandatory.

After you terminate adware, you should also reset all the installed browsers, as browser setting changes initiated by adware might only be reverted that way.

You may remove virus damage with a help of Reimage Reimage Cleaner . SpyHunter 5Combo Cleaner and Malwarebytes are recommended to detect potentially unwanted programs and viruses with all their files and registry entries that are related to them.

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What to do if failed?
If you failed to remove virus damage using Reimage Reimage Cleaner, submit a question to our support team and provide as much details as possible.
Reimage Reimage Cleaner has a free limited scanner. Reimage Reimage Cleaner offers more through scan when you purchase its full version. When free scanner detects issues, you can fix them using free manual repairs or you can decide to purchase the full version in order to fix them automatically.
Alternative Software
Different software has a different purpose. If you didn’t succeed in fixing corrupted files with Reimage, try running SpyHunter 5.
Alternative Software
Different software has a different purpose. If you didn’t succeed in fixing corrupted files with Reimage Cleaner, try running Combo Cleaner.

To remove We have detected a Trojan virus, follow these steps:

Uninstall We have detected a Trojan from Windows systems

To remove We have detected a Trojan virus-related PUP, perform the following steps on your Windows machine:

  1. Click Start Control Panel Programs and Features (if you are Windows XP user, click on Add/Remove Programs). Click 'Start -> Control Panel -> Programs and Features' (if you are 'Windows XP' user, click on 'Add/Remove Programs').
  2. If you are Windows 10 / Windows 8 user, then right-click in the lower left corner of the screen. Once Quick Access Menu shows up, select Control Panel and Uninstall a Program. If you are 'Windows 10 / Windows 8' user, then right-click in the lower left corner of the screen. Once 'Quick Access Menu' shows up, select 'Control Panel' and 'Uninstall a Program'.
  3. Uninstall We have detected a Trojan and related programs
    Here, look for We have detected a Trojan or any other recently installed suspicious programs.
  4. Uninstall them and click OK to save these changes. Right click on each of suspicious entries and select 'Uninstall'

Get rid of We have detected a Trojan from Mac OS X system

Adware is a common problem for Mac users. Proceed with the following if you want to get rid of it:

  1. If you are using OS X, click Go button at the top left of the screen and select Applications. Cick 'Go' and select 'Applications'
  2. Wait until you see Applications folder and look for We have detected a Trojan or any other suspicious programs on it. Now right click on every of such entries and select Move to Trash. Click on every malicious entry and select 'Move to Trash'

Remove We have detected a Trojan from Internet Explorer (IE)

  1. Remove dangerous add-ons
    Open Internet Explorer, click on the Gear icon (IE menu) on the top right corner of the browser and choose Manage Add-ons. Click on menu icon and select 'Manage add-ons'
  2. You will see a Manage Add-ons window. Here, look for We have detected a Trojan and other suspicious plugins. Disable these entries by clicking Disable: Right click on each of malicious entries and select 'Disable'
  3. Change your homepage if it was altered by virus:
    Click on the gear icon (menu) on the top right corner of the browser and select Internet Options. Stay in General tab.
  4. Here, remove malicious URL and enter preferable domain name. Click Apply to save changes. Delete malicious URL, enter your desired domain name and click 'Apply' to save changes
  5. Reset Internet Explorer
    Click on the gear icon (menu) again and select Internet options. Go to Advanced tab.
  6. Here, select Reset.
  7. When in the new window, check Delete personal settings and select Reset again to complete We have detected a Trojan removal. Go to 'Advanced' tab and click on 'Reset' button. Now select 'Delete personal settings' and click on 'Reset' button again

Eliminate We have detected a Trojan virus from Microsoft Edge

Reset Microsoft Edge settings (Method 1):

  1. Launch Microsoft Edge app and click More (three dots at the top right corner of the screen).
  2. Click Settings to open more options.
  3. Once Settings window shows up, click Choose what to clear button under Clear browsing data option. Go to Settings and select 'Choose what to clear'
  4. Here, select all what you want to remove and click Clear. Select 'Clear' button
  5. Now you should right-click on the Start button (Windows logo). Here, select Task Manager. Open the start menu and select 'Task Manager'
  6. When in Processes tab, search for Microsoft Edge.
  7. Right-click on it and choose Go to details option. If can’t see Go to details option, click More details and repeat previous steps. Right-click 'Microsoft Edge' and select 'Go to details' Select 'More details' if 'Go to details' option fails to show up
  8. When Details tab shows up, find every entry with Microsoft Edge name in it. Right click on each of them and select End Task to end these entries. Find Microsoft Edge entries and select 'End Task'

Resetting Microsoft Edge browser (Method 2):

If Method 1 failed to help you, you need to use an advanced Edge reset method.

  1. Note: you need to backup your data before using this method.
  2. Find this folder on your computer: C:\Users\%username%\AppData\Local\Packages\Microsoft.MicrosoftEdge_8wekyb3d8bbwe.
  3. Select every entry which is saved on it and right click with your mouse. Then Delete option. Go to Microsoft Edge folder on your computer, right-click every entry and click 'Delete'
  4. Click the Start button (Windows logo) and type in window power in Search my stuff line.
  5. Right-click the Windows PowerShell entry and choose Run as administrator. Find Windows PowerShell, right-click it and select 'Run as administrator'
  6. Once Administrator: Windows PowerShell window shows up, paste this command line after PS C:\WINDOWS\system32> and press Enter:
    Get-AppXPackage -AllUsers -Name Microsoft.MicrosoftEdge | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register $($_.InstallLocation)\AppXManifest.xml -Verbose}
    Copy and paste a required command and press 'Enter'

Once these steps are finished, We have detected a Trojan should be removed from your Microsoft Edge browser.

Delete We have detected a Trojan from Mozilla Firefox (FF)

  1. Remove dangerous extensions
    Open Mozilla Firefox, click on the menu icon (top right corner) and select Add-ons Extensions. Click on menu icon and select 'Add-ons'
  2. Here, select We have detected a Trojan and other questionable plugins. Click Remove to delete these entries. Select 'Extensions' and look for malicious entries. Click 'Remove' to get rid of each of them
  3. Reset Mozilla Firefox
    Click on the Firefox menu on the top left and click on the question mark. Here, choose Troubleshooting Information. Click on menu icon and then on '?'. Select 'Troubleshooting Information'
  4. Now you will see Reset Firefox to its default state message with Reset Firefox button. Click this button for several times and complete We have detected a Trojan removal. Click on 'Reset Firefox' button for a couple of times

Erase We have detected a Trojan from Google Chrome

Adware leaves traces in web browsers even after it is removed. Here's how to reset Google Chrome to avoid unwanted redirects and ads in the future:

  1. Delete malicious plugins
    Open Google Chrome, click on the menu icon (top right corner) and select Tools Extensions. Click on menu icon. Select 'Tools' and 'Extensions'
  2. Here, select We have detected a Trojan and other malicious plugins and select trash icon to delete these entries. Look for malicious entries and delete each of them by clicking on the Trash bin icon
  3. Click on menu icon again and choose Settings Manage Search engines under the Search section. When in 'Settings', select 'Manage search engines...'
  4. When in Search Engines..., remove malicious search sites. You should leave only Google or your preferred domain name. Click 'X' to remove malicious URLs
  5. Reset Google Chrome
    Click on menu icon on the top right of your Google Chrome and select Settings.
  6. Scroll down to the end of the page and click on Reset browser settings. When in 'Settings', scroll down to 'Reset browser settings' button and click on it
  7. Click Reset to confirm this action and complete We have detected a Trojan removal. Click on 'Reset' button to complete your removal

Uninstall We have detected a Trojan from Safari

  1. Remove dangerous extensions
    Open Safari web browser and click on Safari in menu at the top left of the screen. Once you do this, select Preferences. Click on 'Safari' and select 'Preferences'
  2. Here, select Extensions and look for We have detected a Trojan or other suspicious entries. Click on the Uninstall button to get rid each of them. Go to 'Extensions' and uninstall malicious add-ons
  3. Reset Safari
    Open Safari browser and click on Safari in menu section at the top left of the screen. Here, select Reset Safari.... Click on 'Safari' and select 'Reset Safari...'
  4. Now you will see a detailed dialog window filled with reset options. All of those options are usually checked, but you can specify which of them you want to reset. Click the Reset button to complete We have detected a Trojan removal process. Select all options and click on 'Reset' button

About the author

Olivia Morelli
Olivia Morelli - Ransomware analyst

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