You Have A Trojan! Scam

What is You Have A Trojan!?

"You Have A Trojan!" is another fake error message displayed by a malicious website. It is very similar to Windows Detected ZEUS Virus, Your Device Is Under Threat, Threats Detected, and many other errors. Users often visit this website inadvertently - they are redirected by various potentially unwanted programs (PUPs) without their consent.

Furthermore, these programs infiltrate systems without users’ permission. In addition, PUPs continually gather sensitive data, display intrusive advertisements, and run unwanted background processes.

The "You Have A Trojan!" error states that the system is infected and, for this reason, various accounts (logins/passwords) are at risk. The pop-up encourages users to eliminate the malware immediately by contacting Microsoft technical support (via a telephone number ["+1-888-885-6488"] provided) and following the instructions provided.

In fact, "You Have A Trojan!" is a scam - all claims regarding the infection are false. This error is fake and has nothing to do with Microsoft. Cyber criminals (the developers of this scam) aim to generate revenue by scaring and tricking users into purchasing technical services that are not required.

Furthermore, cyber criminals often demand remote access to users' computers to stealthily change system settings and/or install malware. They then claim to find more errors and offer help for an additional fee. Therefore, "You Have A Trojan!" error should be ignored. It can be removed simply by closing the web browser (preferably, via Task Manager) and/or rebooting the system.

Note that, after restarting the browser, you should never click "Restore Closed Tabs", otherwise you might inadvertently open the malicious website (displaying the "You Have A Trojan!" error) again.

Potentially unwanted programs record various user-system information that typically includes personal details. PUP developers record this information to generate revenue - they sell it to third parties (potentially, cyber criminals) who misuse personal details in various ways. Thus, the presence of data-tracking apps can lead to serious privacy issues or even identity theft.

Potentially unwanted programs also deliver various intrusive advertisements, such as coupons, pop-ups, banners, and so on. These ads often conceal visited website content, significantly diminishing the browsing experience. Furthermore, some might lead to infectious websites or even run scripts that download/install malware (or PUPs).

Therefore, even accidental clicks might result in high-risk computer infections. Some PUPs are also known to mine cryptocurrency or run other unwanted processes in the background. By stealthily misusing resources, PUPs significantly diminish overall computer performance.

Threat Summary:

Name	"You have a Trojan!" virus
Threat Type	Adware, Unwanted ads, Pop-up Virus
Symptoms	Seeing advertisements not originating from the sites you are browsing. Intrusive pop-up ads. Decreased Internet browsing speed.
Distribution methods	Deceptive pop-up ads, free software installers (bundling), fake flash player installers.
Damage	Decreased computer performance, browser tracking - privacy issues, possible additional malware infections.
Malware Removal (Windows)	To eliminate possible malware infections, scan your computer with legitimate antivirus software. Our security researchers recommend using Combo Cleaner. ▼ Download Combo Cleaner To use full-featured product, you have to purchase a license for Combo Cleaner. 7 days free trial available. Combo Cleaner is owned and operated by Rcs Lt, the parent company of PCRisk.com read more.

As mentioned above, "You Have A Trojan!" is virtually identical to dozens of other fake errors. As with "You Have A Trojan!", these errors also claim that the system is damaged , however, they are designed only to to extort money from unsuspecting users. Potentially unwanted programs also share many similarities.

Most offer various "useful features" (e.g., increase Internet performance, optimize the system, etc.) In fact, PUPs deliver no real value for regular users.

All claims to provide 'useful features' are attempts to give the impression of legitimacy - their only purpose is to generate revenue for the developers. Therefore, PUPs pose a direct threat to your privacy and Internet browsing safety.

How did potentially unwanted programs install on my computer?

To proliferate potentially unwanted programs, criminals often employ aforementioned intrusive ads, and a deceptive marketing method called "bundling" - stealth installation of third party applications together with regular software/apps. Therefore, PUPs are likely to infiltrate systems without users' consent.

Developers do not disclose installation of "bundled" apps properly - they conceal this information within the "Custom/Advanced" settings or other sections of the download/installation processes. Users often rush, skip steps, and click various ads without considering the possible consequences. In doing so, they expose their systems to various infections.

How to avoid installation of potentially unwanted applications?

The main reasons for computer infections are poor knowledge and careless behavior. The key to computer safety is caution. Therefore, pay close attention when downloading and installing software, and browsing the Internet. Select the "Custom/Advanced" settings and opt-out of all additionally-included programs.

Furthermore, avoid using third party downloaders/installers, since they are monetized by promoting dubious programs (the "bundling" method). Bear in mind that criminals invest a great deal of resources into malicious ad design.

Therefore, most look legitimate, however, these ads typically lead to gambling, adult dating, survey, and other dubious sites. If you encounter such ads, uninstall all suspicious programs immediately.

Text presented in "You Have A Trojan!" pop-up error:

SECURITY WARNING!
SECURITY WARNING...
You have a Trojan! Your User Names & Passwords Are At Risk! Some One Might Login In To Your Account
Call Now to Report This Threat. Call: +1-888-885-6488
Click 'OK' button below, Don't Turn off the Computer as it will result in permanent hard disk crash and you will loose all the Data on this computer. Report This Threat. Call Microsoft technical Assistance Team: +1-888-885-6488

The appearance of "You Have A Trojan!" pop-up (GIF):

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Quick menu:

• What is You Have A Trojan!?
• STEP 1. Uninstall deceptive applications using Control Panel.
• STEP 2. Remove adware from Internet Explorer.
• STEP 3. Remove rogue extensions from Google Chrome.
• STEP 4. Remove potentially unwanted plug-ins from Mozilla Firefox.
• STEP 5. Remove rogue extensions from Safari.
• STEP 6. Remove rogue plug-ins from Microsoft Edge.

Removal of potentially unwanted programs:

Windows 11 users:

Right-click on the Start icon, select Apps and Features. In the opened window search for the application you want to uninstall, after locating it, click on the three vertical dots and select Uninstall.

Windows 10 users:

Right-click in the lower left corner of the screen, in the Quick Access Menu select Control Panel. In the opened window choose Programs and Features.

Windows 7 users:

Click Start (Windows Logo at the bottom left corner of your desktop), choose Control Panel. Locate Programs and click Uninstall a program.

macOS (OSX) users:

Click Finder, in the opened screen select Applications. Drag the app from the Applications folder to the Trash (located in your Dock), then right click the Trash icon and select Empty Trash.

In the uninstall programs window, look for any suspicious/recently-installed applications, select these entries and click "Uninstall" or "Remove".

After uninstalling the potentially unwanted program, scan your computer for any remaining unwanted components or possible malware infections. To scan your computer, use recommended malware removal software.

Remove rogue extensions from Internet browsers:

Video showing how to remove potentially unwanted browser add-ons:

Remove malicious add-ons from Internet Explorer:

Click the "gear" icon (at the top right corner of Internet Explorer), select "Manage Add-ons". Look for any recently-installed suspicious browser extensions, select these entries and click "Remove".

Optional method:

If you continue to have problems with removal of the "you have a trojan!" virus, reset your Internet Explorer settings to default.

Windows XP users: Click Start, click Run, in the opened window type inetcpl.cpl In the opened window click the Advanced tab, then click Reset.

Windows Vista and Windows 7 users: Click the Windows logo, in the start search box type inetcpl.cpl and click enter. In the opened window click the Advanced tab, then click Reset.

Windows 8 users: Open Internet Explorer and click the gear icon. Select Internet Options.

In the opened window, select the Advanced tab.

Click the Reset button.

Confirm that you wish to reset Internet Explorer settings to default by clicking the Reset button.

Remove malicious extensions from Google Chrome:

Click the Chrome menu icon  (at the top right corner of Google Chrome), select "More tools" and click "Extensions". Locate all recently-installed suspicious browser add-ons, select these entries and click the trash can icon.

Optional method:

If you continue to have problems with removal of the "you have a trojan!" virus, reset your Google Chrome browser settings. Click the Chrome menu icon  (at the top right corner of Google Chrome) and select Settings. Scroll down to the bottom of the screen. Click the Advanced… link.

After scrolling to the bottom of the screen, click the Reset (Restore settings to their original defaults) button.

In the opened window, confirm that you wish to reset Google Chrome settings to default by clicking the Reset button.

Remove malicious plug-ins from Mozilla Firefox:

Click the Firefox menu (at the top right corner of the main window), select "Add-ons". Click "Extensions", in the opened window, remove all recently-installed suspicious browser plug-ins.

Optional method:

Computer users who have problems with "you have a trojan!" virus removal can reset their Mozilla Firefox settings.

Open Mozilla Firefox, at the top right corner of the main window, click the Firefox menu, in the opened menu, click Help.

Select Troubleshooting Information.

In the opened window, click the Refresh Firefox button.

In the opened window, confirm that you wish to reset Mozilla Firefox settings to default by clicking the Refresh Firefox button.

Remove malicious extensions from Safari:

Make sure your Safari browser is active, click Safari menu, and select Preferences....

In the opened window click Extensions, locate any recently installed suspicious extension, select it and click Uninstall.

Optional method:

Make sure your Safari browser is active and click on Safari menu. From the drop down menu select Clear History and Website Data...

In the opened window select all history and click the Clear History button.

Remove malicious extensions from Microsoft Edge:

Click the Edge menu icon  (at the upper-right corner of Microsoft Edge), select "Extensions". Locate all recently-installed suspicious browser add-ons and click "Remove" below their names.

Optional method:

If you continue to have problems with removal of the "you have a trojan!" virus, reset your Microsoft Edge browser settings. Click the Edge menu icon  (at the top right corner of Microsoft Edge) and select Settings.

In the opened settings menu select Reset settings.

Select Restore settings to their default values. In the opened window, confirm that you wish to reset Microsoft Edge settings to default by clicking the Reset button.

• If this did not help, follow these alternative instructions explaining how to reset the Microsoft Edge browser.

Summary:

Commonly, adware or potentially unwanted applications infiltrate Internet browsers through free software downloads. Note that the safest source for downloading free software is via developers' websites only. To avoid installation of adware, be very attentive when downloading and installing free software. When installing previously-downloaded free programs, choose the custom or advanced installation options – this step will reveal any potentially unwanted applications listed for installation together with your chosen free program.

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