How to remove UnknownFile (Virus Removal Guide)

An advertisement-supported program named UnknownFile (Unknown File) was recently brought to our attention. We were asked “What is UnknownFile?” To answer that question, UnknownFile is desstructive adware. It accesses user browsing data and generates targeted advertisements across Chrome, Firefox, Internet Explorer, and Safari that it feels the internet user is most likely to click on based off of their past and current browsing activities. Advertisements displayed by UnknownFile will often contain text that says “Ads by UnknownFile” on them.

UnknownFile virus

If you see ads by UnknownFile while browsing the web, your computer is infected with adware. But that’s not all. This adware is also known to cause and relate to other serious issues and raises many threatening concerns because it can arrive on a computer system alongside more severe malware.

The ‘UnknownFile virus’ is intrusive because it injects the webpages internet users visit with targeted advertisements in the form of banners, pop-under webpages, and underlined in-text hyper link ads. Sometimes this adware will generate sponsored search results and suggestions. Unwanted targeted advertisements are a serious concern because in order to create ‘targeted’ advertisements and sponsored search results UnknownFile adware will need to access and gather user browsing data and modify current browser settings. Information this adware observes includes all data on the websites you visit and all browsing activities, such as information submitted into online forms (online searches, email addresses, telephone numbers, etc.), bookmarks, and browser history. This information together will allow the adware and programs that it bundles with to generate advertisements that target internet users based off their current and past online habits.

UnknownFile adware also bundles with other unwanted programs, browser extensions, malware, and malicious threats. This adware and the programs that it bundles with schedule new tasks and change existing system start-up settings in order to run every time Windows starts and remain enabled. Programs and browser attachments that may arrive with this adware infection can also cause additional issues for computer and internet users not relating to pop-up advertisements.

Even though the UnknownFile virus is not technically defined as a computer virus or malicious parasite, the unwanted program is still a threat or the sign of a very severe computer infection. Since UnknownFile is known to download and install alongside third-party malware, malicious files, and additional potentially unwanted programs (PUPs), including browser hijackers like Jogostempo.com, it will be necessary to uninstall multiple programs and remove multiple browser objects in order to stop all unwanted activities caused by this program and others from occurring. Apart from manually eradicating the program and others that it bundles with, files may remain undetected to the average computer user. That is why the professional internet security community recommends to use a reputable anti-malware product to remove UnknownFile and malicious files that it may bundle with.

How did UnknownFile get on my computer?

UnknownFile and the unwanted programs that it bundles with are usually always contracted without the consent or knowledge of the computer user. The adware is used to promote free downloadable content from a variety of locations on the web; therefor it bundles with multiple objects. Free downloadable content that this adware may bundle with includes freeware, shareware, torrents, and more.

Users who wish to consciously and manually install freeware may be given the opportunity to accept or decline an offer to install UnknownFile adware and other objects alongside the freeware during the installation and setup process; However, the user request to decline the adware from installing is often ignored by the program or presented in a deceptive manner and the adware will install anyways.

This program and objects that it bundles with can also be promoted and contracted through questionable advertisements. These advertisements are usually dishonest, misleading, and can cause the program to automatically download and install once they’re clicked on.

[fancy_box title=”UnknownFile overview”]

  • UnknownFile can read and change all your data on the websites you visit and read and change your browsing history.
  • UnknownFile can manage your apps, extensions, downloads, and themes.
  • UnknownFile bundles with other potentially unwanted programs and malware.
  • UnknownFile is usually packed inside installers and downloaders from websites such as Cnet (download.com), Softonic, and others.
  • UnknownFile injects visited webpages with pop-up and in-text advertisements.
  • UnknownFile makes unwanted changes to existing Windows settings and schedules new tasks which allow it to run every time Windows starts and check to see if the program has been disabled. If the program is disabled it will enable itself.

[/fancy_box]

How to remove UnknownFile (Removal Guide)

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Step 1: Remove UnknownFile extensions

We recommend that you write down the toll free number below in case you run into any issues or problems while removing this infection. Our techs will kindly assist you with any problems.

1-888-879-0084
if you need help give us a call
Google Chrome

1. Click the Customize and control Google Chrome icon on the top menu and navigate to More tools > Extensions.

2. Search for the UnknownFile extension in the list. Remove unwanted browser extensions individually by clicking the trashcan icon next to each one.

Mozilla Firefox

1. Type Ctrl+Shift+A.

2. Search for the UnknownFile add-ons on the Extensions and Plugin tab. Highlight each one individually and click remove.

Apple Safari

1. Click Safari and go to Preferences > Extensions.

2.  Find the UnknownFile extension in the list and click the Uninstall button.

Step 2: Uninstall UnknownFile from Windows

1. Open Windows Start Menu and go to the Control Panel.

2. On Windows Control Panel, click Uninstall a program or Add and remove a program in the Programs section.

3. Search for UnknownFile and other unwanted programs in the list of installed programs. Once an unwanted program is located, double click the item or select it with your mouse and click the Uninstall button. If you can not find this program in the list of installed program please see steps 3 and 4 below.

Step 3: Remove UnknownFile virus with Malwarebytes

1. Download and install the free or full version of Malwarebytes Anti-Malware. The full version enables real-time protection to block malware and unwanted programs from infecting your computer, while the free version is just a free scan and removal tool.

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2. Open the Malwarebytes Anti-Malware program.

Malwarebytes

3. Click the large Scan Now button or visit the “Scan” tab to manually run a scan.

Malwarebytes 2

4. When the malware scan is complete, click the Remove Selected button and reboot your computer.

If you are still having issues with malware it is recommended to download and install a second opinion scanner such as HitmanPro by Surfright to eradicate existing malicious files and automatically repair corrupted settings.

Step 4: Cleanup and repair settings with CCleaner

1. Download and install the free or full version of CCleaner by Piriform.

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Antivirus PRO 2015 virus

2. Once installed, open the program and navigate to Cleaner > Windows/Applications and click the Analyze button. Afterwards, click the Run Cleaner button on the bottom right of the program interface.

Antivirus PRO 2015 malware

3. Next, navigate to Tools > Startup and search through each tab starting from windows, internet explorer, etc., all the way to Content Menu, for additional suspicious entries and click Disable and Delete once anything is found.

If you are still experiencing issues removing potential UnknownFile malware after using this removal guide we recommend to perform a system restore/recovery or a reset/refresh for Windows 8.

Sean Doyle

http://Botcrawl.com

Sean Doyle is an engineer from Los Angeles, California. Sean's primary focuses include Internet Security, Web Spam, and Online Marketing.