BaseFlash Virus

What is Baseflash?

Created by a company named Baseflash LLC, the BaseFlash browser extension claims to enhance the Internet browsing experience by displaying website content and advertisements related to user interests. While this functionality may seem legitimate, computer users should be aware that BaseFlash is categorized as adware or a potentially unwanted application.

Note that many reputable antivirus and anti-malware programs detect BaseFlash as a Trojan or malware. Internet users commonly install this browser extension inadvertently without their consent when downloading free software. Developers of this add-on employ a deceptive software marketing method called 'bundling'.

This method is legal, however, many of the free software 'download clients' and 'installers' analyzed do not properly disclose additional applications listed for installation together with the free program chosen for download or installation.

After successful installation on browsers (Internet Explorer, Google Chrome, and Mozilla Firefox), BaseFlash generates intrusive banner, pop-up, pop-under and interstitial advertisements.

Furthermore, this add-on tracks users' Internet browsing activity by recording IP addresses, Internet service providers allocated to the user's device, web address pages visited, antivirus programs installed, and other information, which can be personally identifiable.

The presence of BaseFlash on your system may lead to malware infections (when clicking ads generated by this plugin), and since it tracks users' browsing activity, may also lead to privacy issues and identity theft.

Research reveals that BaseFlash also records users' keystrokes - behavior similar to keyloggers, and therefore, you are advised to eliminate BaseFlash from your computer immediately.

BaseFlash is similar to other potentially unwanted programs, which install Internet browsers without users' consent. Examples include OkitSpace, SmartSaver+, Coupon Clipster, and Zapp. These plug-ins claim to enhance users' Internet browsing experience by adding various features, however, they only diminish browser performance and generate unwanted ads.

To avoid installation of this adware, express caution when downloading and installing freeware. When downloading free programs, inspect each download step and opt-out of installation of advertised browser plug-ins by clicking the 'decline' button.

When installing free software, choose the 'Custom' or 'Advanced' installation options, rather than 'Quick' or 'Typical' - this will reveal installation of any bundled adware.

Users who have already installed BaseFlash and observe various unwanted advertisements (including 'Ads not by this site') when surfing the Internet, should use this removal guide to eliminate BaseFlash adware from their Internet browser/s.

BaseFlash generating intrusive online advertisements:

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Quick menu:

• What is Baseflash?
• STEP 1. Uninstall Baseflash application using Control Panel.
• STEP 2. Remove Baseflash add-on from Internet Explorer.
• STEP 3. Remove Baseflash plugin from Google Chrome.
• STEP 4. Remove Baseflash extension from Mozilla Firefox.
• STEP 5. Remove BaseFlash extension from Safari.
• STEP 6. Remove rogue plug-ins from Microsoft Edge.

BaseFlash virus removal:

At time of research, this adware did not install any programs with the facility to be uninstalled using Control Panel, however, the developer's website states that users who wish to uninstall the program should uninstall a program called "BASEFLASH".

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 "BASEFLASH", select this entry and click "Uninstall" or "Remove".

Optional BaseFlash uninstall method:

1. Navigate to C:\Users\[YOUR USER NAME]\AppData\Roaming\baseflash

2. Double click on "uninstallkit.exe" - this will uninstall BaseFlash from your computer.

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

Remove BaseFlash from Internet browsers:

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

Remove malicious add-ons from Internet Explorer:

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

Optional method:

If you continue to have problems with removal of the baseflash add-on, 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 "Tools" and click on "Extensions". Locate: "BaseFlash", select this entry and click the trash can icon.

Optional method:

If you continue to have problems with removal of the baseflash add-on, 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:

Click on the Firefox menu (at the top right corner of the main window) select "Add-ons". Click on "Extensions", in the opened window remove "BaseFlash".

Optional method:

Computer users who have problems with baseflash add-on 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 baseflash add-on, 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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