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Error Virus - Trojan Backdoor Hijack Scam

Also Known As: "Error Virus - Trojan Backdoor Hijack" virus
Type: Adware
Damage level: Severe

What is Error Virus - Trojan Backdoor Hijack?

"Error Virus - Trojan Backdoor Hijack" is a fake error message displayed by a malicious website that users often visit inadvertently - they are redirected by various potentially unwanted programs (PUPs). These applications infiltrate systems without consent (the "bundling" method).

In addition, adware continually delivers intrusive online advertisements and tracks Internet browsing activity by gathering user-system information.

Error Virus - Trojan Backdoor Hijack adware

This error message states that the system is infected with a ZEUS virus and, therefore, the system has been blocked and malware must be removed immediately. Victims are encouraged to contact 'system technicians' via a telephone number ["(877) 416-1456"] provided. They will then supposedly be guided through the removal processes.

As mentioned above, however, the "Error Virus - Trojan Backdoor Hijack" error is fake and should not be trusted. Cyber criminals attempt to scare and trick victims into calling the aforementioned telephone number in an attempt to get them to pay for technical services that are not required. This malware simply does not exist.

Therefore, the "Error Virus - Trojan Backdoor Hijack" error should be ignored. You can remove it simply by closing the web browser. Furthermore, PUPs use a "virtual layer" to deliver pop-up, coupon, banner, and other similar advertisements. This enables placement of third party graphical content on any site.

Therefore, displayed advertisements often conceal underlying content, thereby significantly diminishing the browsing experience. In addition, they might lead to malicious websites and even accidental clicks can result in high-risk adware or malware infections.

In addition, PUPs continually record various information that might contain personal details including, for example, IP addresses, URLs visited, pages viewed, search queries, etc. The data is later shared with third parties (potentially, cyber criminals) who misuse personal details to generate revenue.

The presence of information-tracking applications can lead to serious privacy issues or even identity theft. Therefore, all PUPs should be uninstalled immediately.

Threat Summary:
Name "Error Virus - Trojan Backdoor Hijack" 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)

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There are many fake error messages that share similarities with "Error Virus - Trojan Backdoor Hijack" including, for example, The ArialText Font Was Not Found, Unknown Security Breach, System Has Been Locked For Your Safety, and Access To Your Computer Has Been Restricted

Note that all of these messages claim that the system is damaged in certain ways, however, as with Error Virus - Trojan Backdoor Hijack, these viruses should not be trusted. They are designed only to generate revenue for the developers. PUPs also have an identical purpose.

By offering various 'useful features', they attempt to give the impression of legitimacy, however, rather than providing any value for regular users, PUPs cause unwanted redirects, deliver intrusive ads, and record various user-system information.

How did adware install on my computer?

PUPs are distributed using a deceptive marketing method called "bundling" - stealth installation of third party applications with regular software/apps. Users often rush the download/installation processes and skip steps.

Aware of this, developers hide bundled applications within the "Custom/Advanced" settings of these procedures. Skipping this section often leads to inadvertent installation of rogue applications.

How to avoid installation of potentially unwanted applications?

PUPs are distributed using the "bundling" method. Therefore, never rush the download or installation processes. Select the "Custom/Advanced" settings, carefully analyze each step, and decline offers to download/install additional software. Bundled programs should never be installed.

Text presented within "Error Virus - Trojan Backdoor Hijack" error:

Error: Virus - Trojan Backdoor Hijack #365838d7f8a4fa5
Please call computer system technician immediately on (877) 416-1456
Please do not ignore this safety alert. Your Microsoft System Has Been Compromised. If you close this page before calling us, your computer access will be disabled to prevent further damage and your data from being stolen.

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Quick menu:

Adware removal:

Windows 11 users:

Accessing Apps and Features in Windows 11

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:

Accessing Programs and Features (uninstall) in Windows 8

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:

Accessing Programs and Features (uninstall) in Windows 7

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:

Uninstall app in OSX (Mac)

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.

Error Virus - Trojan Backdoor Hijack adware uninstall via Control Panel

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 adware from Internet browsers:

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

Internet Explorer logoRemove malicious add-ons from Internet Explorer:

Removing Error Virus - Trojan Backdoor Hijack ads from Internet Explorer step 1

Click the "gear" icon Internet Explorer options 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".

Removing Error Virus - Trojan Backdoor Hijack ads from Internet Explorer step 2

Optional method:

If you continue to have problems with removal of the "error virus - trojan backdoor hijack" 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.

Resetting Internet Explorer settings to default on Windows XP

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.

Resetting Internet Explorer settings to default on Windows 7

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

Reseting Internet Explorer settings to default in Windows 8 - accessing

In the opened window, select the Advanced tab.

Resetting Internet Explorer settings to default on Windows 8 - Internet options advanced tab

Click the Reset button.

Resetting Internet Explorer settings to default on Windows 8 - click the Reset button in the Internet options advanced tab

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

Resetting Internet Explorer settings to default on Windows 8 - confirm settings reset to default by clicking the reset button

Google Chrome logoRemove malicious extensions from Google Chrome:

Removing Error Virus - Trojan Backdoor Hijack  ads from Google Chrome step 1

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

Removing Error Virus - Trojan Backdoor Hijack ads from Google Chrome step 2

Optional method:

If you continue to have problems with removal of the "error virus - trojan backdoor hijack" virus, reset your Google Chrome browser settings. Click the Chrome menu icon Google 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.

Google Chrome settings reset step 1

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

Google Chrome settings reset step 2

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

Google Chrome settings reset step 3

Mozilla Firefox logoRemove malicious plug-ins from Mozilla Firefox:

Removing Error Virus - Trojan Backdoor Hijack ads from Mozilla Firefox step 1

Click the Firefox menu firefox menu icon (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.

Removing Error Virus - Trojan Backdoor Hijack ads from Mozilla Firefox step 2

Optional method:

Computer users who have problems with "error virus - trojan backdoor hijack" virus removal can reset their Mozilla Firefox settings.

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

Accessing settings (Reset Firefox to default settings step 1)

Select Troubleshooting Information.

Accessing Troubleshooting Information (Reset Firefox to default settings step 2)

In the opened window, click the Refresh Firefox button.

Clicking on Refresh Firefox button (Reset Firefox to default settings step 3)

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

Confirm your want to reset Firefox settings to default (Reset Firefox to default settings step 4)

safari browser logoRemove malicious extensions from Safari:

removing adware from safari step 1 - accessing preferences

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

removing adware from safari step 2 - removing extensions

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...

resetting safari step 1

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

resetting safari step 2

Microsoft Edge (Chromium) logoRemove malicious extensions from Microsoft Edge:

Removing adware from Microsoft Edge step 1

Click the Edge menu icon Microsoft Edge (chromium) 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.

Removing adware from Microsoft Edge step 2

Optional method:

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

Microsoft Edge (Chromium) reset step 1

In the opened settings menu select Reset settings.

Microsoft Edge (Chromium) reset step 2

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.

Microsoft Edge (Chromium) reset step 3

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

Summary:

declining installation of adware while downloading free software sampleCommonly, 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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About the author:

Tomas Meskauskas

Tomas Meskauskas - expert security researcher, professional malware analyst.

I am passionate about computer security and technology. I have an experience of over 10 years working in various companies related to computer technical issue solving and Internet security. I have been working as an author and editor for pcrisk.com since 2010. Follow me on Twitter and LinkedIn to stay informed about the latest online security threats. Contact Tomas Meskauskas.

PCrisk security portal is brought by a company RCS LT. Joined forces of security researchers help educate computer users about the latest online security threats. More information about the company RCS LT.

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Removal Instructions in other languages
Software uninstall instructions
Malware activity

Global malware activity level today:

Medium threat activity

Increased attack rate of infections detected within the last 24 hours.

QR Code
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