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DLSecure Toolbar

Also Known As: DLSecure browser hijacker
Damage level: Medium

What is DLSecure toolbar?

The DLSecure toolbar is developed by Visicom Media. This browser toolbar can be downloaded from its homepage, however, it is often 'bundled' with free software downloaded from the Internet. At time of research, this potentially unwanted application was also bundled with fake downloads such as Java, Flash, and browser updates.

Bundling in this manner is a commonly-used and deceptive software marketing method.

When installed, this toolbar assigns the browser homepage to mystart.com and default Internet search engine to Yahoo.com This website alone is not related to malware or virus infections, however, the creators of this toolbar have full control over the software, and thus, are capable of redirecting users to malicious websites at any time.

dlsecure toolbar

Whilst bundling is a legal marketing method, users commonly install this toolbar inadvertently without their consent. To avoid installing unwanted toolbars and plug-ins, closely inspect each download step of any free software, since freeware developers often bundle their programs with browser toolbars and add-ons in order to monetize their free software.

The main revenue source of DLSecure toolbar, and other similar add-ons, are sponsored Internet search results. DLSecure toolbar is not a virus or malware, however, it is a potentially unwanted application that adds no significant value and diminishes Internet browser performance. Therefore, you are advised to eliminate this adware from your Internet browser/s.

This toolbar is similar to other browser settings-changing adware (which installs together with free software) including, for example, trovi.com, hao123.com, and istart123.com. DLSecure toolbar employs various shortcuts to social networks, games, and coupon deals. 

While such shortcuts may seem useful, they add no real value and their use (particularly online games shortcuts) may lead to installation of additional adware. The search bar presented by DLSecure toolbar employs the Yahoo! search engine and using this should not lead to computer security infections.

If you have willingly installed DLSecure toolbar, you need take no further action, however, if you feel that your Internet browsers (Internet Explorer and Mozilla Firefox) redirect to the mystart.com and yahoo.com websites without your consent, use the removal information provided to eliminate this adware from your computer.

Website promoting installation of DLSecure toolbar:

website promoting dlsecure toolbar

DLSecure toolbar installer:

dlsecure toolbar installer

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Quick menu:

DLSecure toolbar 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.

dlsecure toolbar uninstall via Control Panel

In the uninstall programs window: look for "DLSecure Toolbar", select this entry and click "Uninstall" or "Remove".

After uninstalling potentially unwanted programs (that cause browser redirects to the mystart.com and Yahoo.com website), scan your computer for any remaining unwanted components. To scan your computer, use recommended malware removal software. Remove all entries that this program detects to ensure your PC is clean from any possible spyware and malware infections.

DLSecure toolbar removal from Internet browsers:

Video showing how to remove potentially unwanted browser plugins:

Internet Explorer logoRemove malicious add-ons from Internet Explorer:

Removing dlsecure toolbar from Internet Explorer extensions

Click on the "gear" icon Internet Explorer options icon (at the top right corner of Internet Explorer select "Manage Add-ons". Look for "DLSecure Toolbar", select this entry and click "Remove".

Change homepage:

Removing dlsecure redirect from Internet Explorer homepage

Click the "gear" icon Internet Explorer options icon (at the top right corner of Internet Explorer, select "Internet Options", in the opened window, remove hxxp://www.mystart.com and enter your preferred domain, which will open each time you launch Internet Explorer. You can also enter about: blank to open a blank page when you start Internet Explorer.

Change default search engine:

Removing dlsecure redirect from Internet Explorer default search engine

Click the "gear" icon Internet Explorer options 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 and then remove "Search The Web".

Optional method:

If you continue to have problems with removal of the dlsecure 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.

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 dlsecure toolbar from Google Chrome extensions

Click the bars icon (top right of the screen), select "Tools" and click on "Extensions". Locate "New Tab Search", select this entry and click the trash can icon.

Change homepage:

Removing dlsecure redirect from Google Chrome homepage

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

Change default search engine:

Removing dlsecure redirect from Google Chrome default search engine

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

Optional method:

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

Removing dlsecure toolbar from Mozilla Firefox extensions

Click the Firefox menu firefox menu icon (at the top right corner of the main window), select "Add-ons". Click on "Extensions" and remove "DLSecure Toolbar".

Change homepage:

Removing dlsecure redirect from Mozilla Firefox homepage

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

Change default search engine:

Removing dlsecure redirect from Mozilla Firefox 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: "dlsecure"
Right-click on the found preferences and select "Reset" to restore default values.

Optional method:

Computer users who have problems with dlsecure 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, 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 browser hijackers from safari step 1 - accessing preferences

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

removing browser hijacker from safari step 2 - removing extensions

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

Removing browser hijackers from safari step 3 - changing homepage

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.

removing browser hijackers from safari step 4 - changing the default Internet search engine

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...

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 browser hijackers from Microsoft Edge step 1

Click the Edge menu icon Microsoft Edge (chromium) 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:

Removing browser hijackers from Microsoft Edge step 2

Click the Edge menu icon Microsoft Edge (chromium) 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:

Removing browser hijackers from Microsoft Edge step 3

To change your default search engine in Microsoft Edge: Click the Edge menu icon Microsoft Edge (chromium) 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 Microsoft Edge (Chromium) puzzle icon near it and select "Disable".

Optional method:

If you continue to have problems with removal of the dlsecure browser hijacker, 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 browser hijackers while downloading free software sampleA 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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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.

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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
DLSecure browser hijacker QR code
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