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UC Browser virus. How to remove? (Uninstall guide)

removal by Alice Woods - - | Type: Malware

UC browser virus bothers the virtual community

The screenshot of UC Browser official website

UC Browser virus defines malware originating while using or attempting to remove this alternative browser. Note that the very UC Browser is not malicious. It is developed by Chinese[1] mobile Internet company UCWeb which also belongs to Alibaba Group of China[2].

The company has created multiple browser versions. It is compatible with a standalone PC user. You can also find UC Mini designed for Android phones. The search tool is promoted as the engine which meets even the pickiest users’ demands: fast and secure and an ad-free experience. The search tool operates in Chrome, Internet Explorer, and Opera browser.

However, there have been multiple complaints about this browser which led users call this browser a Chinese UC Browser virus. Let us look through the cases thoroughly and discuss ways how to remove UC browser virus.

The browser was launched in April 2004. However, though quite a while has passed, complaints have not ceased. In 2016, the very browser was flagged as a trojan.Agent.lwrp[3]. Security specialists have considered it as a false positive.

Promoted in the phishing site

Now, neither the official site nor the installer is labeled as malicious[4]. Nonetheless, reports about this browser being a virus are still quite new. Bothersome ads have been redirecting users to the phishing site which attempts to deceive users that their device is infected with malware.

This scam was mainly spotted in Opera Mini browser designed for mobile devices. The message says that “your Opera Mini is heavily damaged by (5) viruses.” The message urges victims to switch to UC Browser to prevent further damage on the SIM card[5]. However, such reports are simply scareware.

In response to these claims, the representative of International UC Browser company stated dishonest marketing publishers were at fault for using such techniques to direct traffic to UCWeb products. He also added that the company will tackle the issue.

On the other hand, such statement does not provide necessary answers to the questions. What is be the point of directing the traffic to UC Browsers without gaining profit? It is very unlikely that the marketers receive the profit from other than the main distributor.

Dubious privacy policy provisions

The very privacy policy of UC browser only fortifies the assumptions about dubious promotion techniques. It mentions that no private data is shared without users’ consent. On the other hand, they mention that:

We may share your personal information, which may include your name and contact information (including email address) with third parties that perform certain services on our behalf. These services may include providing support, performing data analysis, and providing and supporting Site functionality and features.

Though the developers claim that these providers are obliged not to use the acquired information other than for service providing purposes, the above-discussed sample of the phishing site suggests that the developers failed at surveying them properly.

Further paragraphs mention that the collected non-personal information which includes browsing history, search entries, IP address and other related data, might be shared with the service providers. As a result, more personalized ads might distract you during browsing sessions and if such phenomenon bothers you, you might start thinking how to remove Chinese UC browser.

Trouble eliminating the browser

Up until now, there have been multiple reports about difficulties eliminating the browsers. Users complained that “Add/Remove a program” function does not work. In other cases, uninstalling the program via the Control panel does not help eradicate the program.

Users find it difficult how to remove uc.exe virus by eradicating uefochubsrv.sys file[6].Users report that while using UC Browser, search function ceases functioning. Others get irritated by the fact that they cannot revert to the browser easily.

Mobile users might find it even more aggravating looking for ways how to how to remove UC browser from a phone. On the other hand, there is no need to worry. More information is provided below. Speaking of standalone PC users, Reimage or Plumbytes Anti-MalwareMalwarebytes Malwarebytes will be of use eliminating the threat. The latter program has a mobile version so it may serve as sufficient UC browser removal tool.

Ways to detect PUP on time

The distribution network is another aspect which sparks doubts about UC browser. It has been spotted promoted along with other tools and often quite dubious program. In order to avoid the so-called UC browser hijack, carefully inspect the installation wizards.

Before clicking the “Install” button, opt for “Custom” settings. They will disclose unnecessary optional tools, and you will be able to deselect them. If you are sure that no unnecessary add-ons will be installed along, proceed further. Now let us review methods how to remove UC browser virus Windows 10 and phone versions.

Eliminate the browser and its components

In order to delete the program, you may use the Uninstall setup file found in the UC browser. Click on the Start button, find or type UC browser. Right-click on it and choose Open file location. Once the folder opens, click on the Uninstall file. Follow further UC Browser removal instructions.

If that does help, launch Registry Editor.

  1. Press Windows key+R and type regedit. Click Enter and then Registry Editor opens.
  2. Click on Edit, then choose Find Next.
  3. Type UC Browser and click enter.
  4. If it finds uefochubsrv.sys or any other file associated with the browser, right-click on them and delete.

If you are wondering how to remove UC virus faster, let malware elimination program take care of the malware. Update it and ruin the scan. If you are struggling with the virus on Android, install the mobile anti-virus version and scan the device.

If that does not help, you might opt for the last solution – factory data reset. Note that this action wipes all existing data on the device. You can find this option on Settings and then Backup&Reset. After you tap factory data reset, choose Erase everything.

You can remove virus damage automatically with a help of one of these programs: Reimage, Malwarebytes MalwarebytesCombo Cleaner, Plumbytes Anti-MalwareMalwarebytes Malwarebytes. We recommend these applications because they detect potentially unwanted programs and viruses with all their files and registry entries that are related to them.

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Alternative Software
Different security software includes different virus database. If you didn’t succeed in finding malware with Reimage, try running alternative scan with Combo Cleaner.

To remove UC Browser virus, follow these steps:

WindowsMac OS XInternet ExplorerMicrosoft EdgeFirefoxGoogle ChromeSafari

Delete UC Browser from Windows systems

After you uninstall the program, pick your browser, follow the reset instructions to fully eliminate UC browser virus scripts.

  1. Click Start Control Panel Programs and Features (if you are Windows XP user, click on Add/Remove Programs). Click 'Start -> Control Panel -> Programs and Features' (if you are 'Windows XP' user, click on 'Add/Remove Programs').
  2. If you are Windows 10 / Windows 8 user, then right-click in the lower left corner of the screen. Once Quick Access Menu shows up, select Control Panel and Uninstall a Program. If you are 'Windows 10 / Windows 8' user, then right-click in the lower left corner of the screen. Once 'Quick Access Menu' shows up, select 'Control Panel' and 'Uninstall a Program'.
  3. Uninstall UC Browser and related programs
    Here, look for UC Browser or any other recently installed suspicious programs.
  4. Uninstall them and click OK to save these changes. Right click on each of suspicious entries and select 'Uninstall'
WindowsMac OS XInternet ExplorerMicrosoft EdgeFirefoxGoogle ChromeSafari

Erase UC Browser from Mac OS X system

  1. If you are using OS X, click Go button at the top left of the screen and select Applications. Cick 'Go' and select 'Applications'
  2. Wait until you see Applications folder and look for UC Browser or any other suspicious programs on it. Now right click on every of such entries and select Move to Trash. Click on every malicious entry and select 'Move to Trash'
WindowsMac OS XInternet ExplorerMicrosoft EdgeFirefoxGoogle ChromeSafari

Uninstall UC Browser from Internet Explorer (IE)

  1. Remove dangerous add-ons
    Open Internet Explorer, click on the Gear icon (IE menu) on the top right corner of the browser and choose Manage Add-ons. Click on menu icon and select 'Manage add-ons'
  2. You will see a Manage Add-ons window. Here, look for UC Browser and other suspicious plugins. Disable these entries by clicking Disable: Right click on each of malicious entries and select 'Disable'
  3. Change your homepage if it was altered by virus:
    Click on the gear icon (menu) on the top right corner of the browser and select Internet Options. Stay in General tab.
  4. Here, remove malicious URL and enter preferable domain name. Click Apply to save changes. Delete malicious URL, enter your desired domain name and click 'Apply' to save changes
  5. Reset Internet Explorer
    Click on the gear icon (menu) again and select Internet options. Go to Advanced tab.
  6. Here, select Reset.
  7. When in the new window, check Delete personal settings and select Reset again to complete UC Browser removal. Go to 'Advanced' tab and click on 'Reset' button. Now select 'Delete personal settings' and click on 'Reset' button again
WindowsMac OS XInternet ExplorerMicrosoft EdgeFirefoxGoogle ChromeSafari

Get rid of UC Browser virus from Microsoft Edge

Reset Microsoft Edge settings (Method 1):

  1. Launch Microsoft Edge app and click More (three dots at the top right corner of the screen).
  2. Click Settings to open more options.
  3. Once Settings window shows up, click Choose what to clear button under Clear browsing data option. Go to Settings and select 'Choose what to clear'
  4. Here, select all what you want to remove and click Clear. Select 'Clear' button
  5. Now you should right-click on the Start button (Windows logo). Here, select Task Manager. Open the start menu and select 'Task Manager'
  6. When in Processes tab, search for Microsoft Edge.
  7. Right-click on it and choose Go to details option. If can’t see Go to details option, click More details and repeat previous steps. Right-click 'Microsoft Edge' and select 'Go to details' Select 'More details' if 'Go to details' option fails to show up
  8. When Details tab shows up, find every entry with Microsoft Edge name in it. Right click on each of them and select End Task to end these entries. Find Microsoft Edge entries and select 'End Task'

Resetting Microsoft Edge browser (Method 2):

If Method 1 failed to help you, you need to use an advanced Edge reset method.

  1. Note: you need to backup your data before using this method.
  2. Find this folder on your computer: C:\Users\%username%\AppData\Local\Packages\Microsoft.MicrosoftEdge_8wekyb3d8bbwe.
  3. Select every entry which is saved on it and right click with your mouse. Then Delete option. Go to Microsoft Edge folder on your computer, right-click every entry and click 'Delete'
  4. Click the Start button (Windows logo) and type in window power in Search my stuff line.
  5. Right-click the Windows PowerShell entry and choose Run as administrator. Find Windows PowerShell, right-click it and select 'Run as administrator'
  6. Once Administrator: Windows PowerShell window shows up, paste this command line after PS C:\WINDOWS\system32> and press Enter:
    Get-AppXPackage -AllUsers -Name Microsoft.MicrosoftEdge | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register $($_.InstallLocation)\AppXManifest.xml -Verbose}
    Copy and paste a required command and press 'Enter'

Once these steps are finished, UC Browser should be removed from your Microsoft Edge browser.

WindowsMac OS XInternet ExplorerMicrosoft EdgeFirefoxGoogle ChromeSafari

Remove UC Browser from Mozilla Firefox (FF)

  1. Remove dangerous extensions
    Open Mozilla Firefox, click on the menu icon (top right corner) and select Add-ons Extensions. Click on menu icon and select 'Add-ons'
  2. Here, select UC Browser and other questionable plugins. Click Remove to delete these entries. Select 'Extensions' and look for malicious entries. Click 'Remove' to get rid of each of them
  3. Reset Mozilla Firefox
    Click on the Firefox menu on the top left and click on the question mark. Here, choose Troubleshooting Information. Click on menu icon and then on '?'. Select 'Troubleshooting Information'
  4. Now you will see Reset Firefox to its default state message with Reset Firefox button. Click this button for several times and complete UC Browser removal. Click on 'Reset Firefox' button for a couple of times
WindowsMac OS XInternet ExplorerMicrosoft EdgeFirefoxGoogle ChromeSafari

Eliminate UC Browser from Google Chrome

  1. Delete malicious plugins
    Open Google Chrome, click on the menu icon (top right corner) and select Tools Extensions. Click on menu icon. Select 'Tools' and 'Extensions'
  2. Here, select UC Browser and other malicious plugins and select trash icon to delete these entries. Look for malicious entries and delete each of them by clicking on the Trash bin icon
  3. Click on menu icon again and choose Settings Manage Search engines under the Search section. When in 'Settings', select 'Manage search engines...'
  4. When in Search Engines..., remove malicious search sites. You should leave only Google or your preferred domain name. Click 'X' to remove malicious URLs
  5. Reset Google Chrome
    Click on menu icon on the top right of your Google Chrome and select Settings.
  6. Scroll down to the end of the page and click on Reset browser settings. When in 'Settings', scroll down to 'Reset browser settings' button and click on it
  7. Click Reset to confirm this action and complete UC Browser removal. Click on 'Reset' button to complete your removal
WindowsMac OS XInternet ExplorerMicrosoft EdgeFirefoxGoogle ChromeSafari

Delete UC Browser from Safari

  1. Remove dangerous extensions
    Open Safari web browser and click on Safari in menu at the top left of the screen. Once you do this, select Preferences. Click on 'Safari' and select 'Preferences'
  2. Here, select Extensions and look for UC Browser or other suspicious entries. Click on the Uninstall button to get rid each of them. Go to 'Extensions' and uninstall malicious add-ons
  3. Reset Safari
    Open Safari browser and click on Safari in menu section at the top left of the screen. Here, select Reset Safari.... Click on 'Safari' and select 'Reset Safari...'
  4. Now you will see a detailed dialog window filled with reset options. All of those options are usually checked, but you can specify which of them you want to reset. Click the Reset button to complete UC Browser removal process. Select all options and click on 'Reset' button

About the author

Alice Woods
Alice Woods - Likes to teach users about virus prevention

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