Siviewer.com Redirect

What is siviewer.com?

SIViewer is a deceptive application that supposedly allows users view various images (for example, .jpg, .gif, etc.). Initially, this app may seem legitimate, however, it is classed as a potentially unwanted program (PUP) and a browser hijacker. SIViewer infiltrates systems without users’ permission, gathers various information regarding users' web browsing activity, hijacks Internet browsers, and stealthily modifies browser settings.

SIViewer assigns the Internet Explorer, Google Chrome, and Mozilla Firefox browser default search engine, homepage, and new tab URL browser settings to start.siviewer.com - a fake Internet search engine. In addition, this browser hijacker adds this URL as an extension to the target of all existing browser shortcuts.

In doing so, SIViewer virtually guarantees successful unwanted browser redirects - users are continually redirected to start.siviewer.com without their consent. This significantly diminishes their web browsing experience.

Note that start.siviewer.com generates various dubious search results and, thus, searching the Internet via this website can result in further adware or malware infections. Another downside of SIViewer is data tracking. This app continually gathers various user/system information including IP addresses, websites visited, pages viewed, search queries, etc.

This data may seem insignificant, however, it might contain personally identifiable details that developers of SIViewer share with third parties (who can misuse private data to generate revenue). This behavior can lead to serious privacy issues. Therefore, you are strongly advised to uninstall SIViewer immediately.

There are dozens of fake Internet search engines that falsely claim to enhance the web browsing experience by generating the most relevant search results.

These claims are merely attempts to give the impression of legitimate software. In fact, PUPs and fake Internet search engines are designed only to generate revenue for the developers -  they simply cause unwanted browser redirects, record private data, and deliver intrusive online advertisements, and provide no significant value for users.

How did siviewer.com install on my computer?

SIViewer has an official download website, however, this app is also promoted using a deceptive software marketing method called 'bundling' (stealth installation of PUPs with regular software). Therefore, many users install SIViewer inadvertently, since they do not express enough caution when downloading and installing software.

Aware of this, developers intentionally hide bogus programs such as SIViewer within the 'Custom/Advanced' settings of these processes. Users who skip this section, often install bogus programs inadvertently.

How to avoid installation of potentially unwanted applications?

To prevent this situation, be cautious when downloading and installing software. Closely analyze each step within the 'Custom/Advanced' settings and opt-out of all additionally-included programs. Bundled software is often dubious and, thus, should never be installed.

Website promoting SIViewer browser hijacker:

SIViewer installer set-up:

Screenshot of SIViewer application:

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Quick menu:

• What is siviewer.com?
• STEP 1. Uninstall potentially unwanted applications using Control Panel.
• STEP 2. Remove siviewer.com redirect from Internet Explorer.
• STEP 3. Remove SIViewer browser hijacker from Google Chrome.
• STEP 4. Remove siviewer.com homepage and default search engine from Mozilla Firefox.
• STEP 5. Remove siviewer.com redirect from Safari.
• STEP 6. Remove rogue plug-ins from Microsoft Edge.

Siviewer.com redirect removal:

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 "SIViewer(Image Viewer)", select this entry and click "Uninstall" or "Remove".

After uninstalling the potentially unwanted program that causes browser redirects to the siviewer.com website, scan your computer for any remaining unwanted components. To scan your computer, use recommended malware removal software.

Siviewer.com homepage and default Internet search engine removal from Internet browsers:

Video showing how to remove browser hijackers:

Remove malicious add-ons from Internet Explorer:

Remove siviewer.com-related Internet Explorer add-ons:

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 such entries and click "Remove".

Fix Internet Explorer shortcut target:

This browser hijacker changes the "Target" field of the Internet Explorer shortcut. To fix this, locate the shortcut on your Desktop and click the right mouse button over it. In the opened menu, choose "Properties". In the opened window, locate the Target field and eliminate text (hxxp://start.siviewer.com/...), which is entered after "C:\Program Files\Internet Explorer\iexplore.exe".

Change your homepage:

Click the "gear" icon (at the top right corner of Internet Explorer), select "Internet Options", in the opened window remove hxxp://start.siviewer.com and enter your preferred domain, which will open each time you launch Internet Explorer.

Change your default search engine:

Click the "gear" icon (at the top right corner of Internet Explorer), select "Manage Add-ons". In the opened window, select "Search Providers", set "Google", "Bing" or any other preferred search engine as your default, then remove "siviewer".

Optional method:

If you continue to have problems with removal of the siviewer browser hijacker, 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:

Remove siviewer.com-related Google Chrome extensions:

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

Fix Google Chrome shortcut target:

This browser hijacker modifies the "Target" field of the Google Chrome shortcut. To fix this, locate the shortcut on your Desktop and click the right mouse button over it. In the opened menu, choose "Properties". In the opened window, locate the Target field and eliminate all text (hxxp://www.start.siviewer.com/...), which is entered after "C:\Program Files\Google\Chrome\Application\chrome.exe"

Change your homepage:

Click the Chrome menu icon (at the top right corner of Google Chrome), select "Settings". In the "On startup" section, click "set pages", hover your mouse over hxxp://start.siviewer.com and click the x symbol. Now, you can add your preferred website as your homepage.

Change your default search engine:

To change your default search engine in Google Chrome: Click the Chrome menu icon (at the top right corner of Google Chrome), select "Settings", in "Search" section, click "Manage Search Engines...", remove "siviewer" and add or select your preferred Internet search engine.

Optional method:

If you continue to have problems with removal of the siviewer browser hijacker, 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 plugins from Mozilla Firefox:

Remove siviewer.com-related Mozilla Firefox add-ons:

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

Fix Mozilla Firefox shortcut target:

This browser hijacker changes the "Target" field of the Mozilla Firefox shortcut. To fix this, locate the shortcut on your Desktop and click the right mouse button over it. In the opened menu, choose "Properties". In the opened window, locate the Target field and eliminate all text (hxxp://start.siviewer.com/...), which is entered after "C:\Program Files\Mozilla Firefox\firefox.exe"

Change your homepage:

To reset your homepage, click the Firefox menu (at the top right corner of the main window) then select "Options", in the opened window, remove hxxp://www.siviewer.com and enter your preferred domain, which will open each time you start Mozilla Firefox.

Change default search engine:

In the URL address bar, type about:config and press Enter.
Click "I'll be careful, I promise!".
In the search filter at the top, type: "siviewer.com"
Right-click on the found preferences and select "Reset" to restore default values.

Optional method:

Computer users who have problems with siviewer browser hijacker 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 and click Safari menu, then select Preferences...

In the preferences window select the Extensions tab. Look for any recently installed suspicious extensions and uninstall them.

In the preferences window select General tab and make sure that your homepage is set to a preferred URL, if its altered by a browser hijacker - change it.

In the preferences window select Search tab and make sure that your preferred Internet search engine is selected.

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 top right corner of Microsoft Edge), select "Extensions". Locate any recently-installed suspicious browser add-ons, and remove them.

Change your homepage and new tab settings:

Click the Edge menu icon  (at the top right corner of Microsoft Edge), select "Settings". In the "On startup" section look for the name of the browser hijacker and click "Disable".

Change your default Internet search engine:

To change your default search engine in Microsoft Edge: Click the Edge menu icon  (at the top right corner of Microsoft Edge), select "Privacy and services", scroll to bottom of the page and select "Address bar". In the "Search engines used in address bar" section look for the name of the unwanted Internet search engine, when located click the "Disable" button near it. Alternatively you can click on "Manage search engines", in the opened menu look for unwanted Internet search engine. Click on the puzzle icon near it and select "Disable".

Optional method:

If you continue to have problems with removal of the siviewer browser hijacker, 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:

A browser hijacker is a type of adware infection that modifies Internet browser settings by assigning the homepage and default Internet search engine settings to some other (unwanted) website URL. Commonly, this type of adware infiltrates operating systems through free software downloads. If your download is managed by a download client, ensure that you decline offers to install advertised toolbars or applications that seek to change your homepage and default Internet search engine settings.

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