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How to remove the UnfriendApp malware

Some anti-malware programs classify common.dll as a harmful extension to Internet Explorer: for instance Adware.Agent.NVF or Adware.Agent.NUR (detected by BitDefender), and Adware.Agent.NVF or Adware.Agent.NUR (detected by F-Secure). Add-ons like this can display ads, slow down your computer and cause various other errors. If you can't remember installing the associated UnfriendApp software, it's no surprise. In most cases, this kind of adware is installed on the side when you install a freeware product like a Youtube Downloader or a PDF Converter. In the following selection, you can read more about UnfriendApp and how to get rid of it.

Click here to automatically remove the UnfriendApp malware

Common.dll file information

The process known as UnfriendApp or SearchDonkey or InfoSeeker or SafeMonitor or TubeDimmer or FriendsChecker or Websteroids or UnfriendMonkey

belongs to software UnfriendApp or SearchDonkey or InfoSeeker or Safe Monitor or Tube Dimmer or Better Experience or Websteroids or FriendsChecker or Spy Guard

by or WebAppTech Coding or Big Water Applications or Creative Island Media or Better Experience or Western Web Applications or FriendsChecker or Long Mile Solutions.

Description: Common.dll is not essential for the Windows OS and causes relatively few problems. The file common.dll is located in a subfolder of "C:\" or sometimes in a subfolder of the user's profile folder (common is C:\ or C:\Program Files (x86)\UnfriendApp\IE\). Known file sizes on Windows 10/11/7 are 392,328 bytes (24% of all occurrences), 392,296 bytes and 9 more variants. file.net/process/common.dll.html 
This .dll file is a Browser Helper Object (BHO) that runs automatically every time you start your web browser. BHOs are not stopped by personal firewalls, because they are identified by the firewall as part of the browser itself. BHOs are often used by adware and spyware. IDs used by this BHO include 44ed99e2-16a6-4b89-80d6-5b21cf42e78b. The file is not a Windows core file. The program is not visible. The common.dll file is able to change the behavior of, or monitor Internet Explorer. There is no description of the program. The file has a digital signature. Therefore the technical security rating is 52% dangerous.

Uninstalling this variant: In the event of any problems with common.dll, you can also go to the support area [1][2] of the Unfriendapp website or remove the entire program UnfriendApp or InfoSeeker using Windows Control Panel.

Recommended: Identify common.dll related errors

Important: Some malware camouflages itself as common.dll, particularly when located in the C:\Windows or C:\Windows\System32 folder, for example Adware.Agent.NVF or Adware.Agent.NUR (detected by BitDefender), and Adware.Agent.NVF or Adware.Agent.NUR (detected by F-Secure). Therefore, you should check the common.dll process on your PC to see if it is a threat. If UnfriendApp has changed your browser's search engine and start page, you can recover your browser's default settings as follows:

Reset default browser settings for Internet-Explorer ▾
  1. In Internet Explorer, press the key combination Alt + X to open the Tools menu.
  2. Click Internet options.
  3. Click the Advanced tab.
  4. Click the Reset... button.
  5. Enable the Delete personal settings option.
This will reset your Internet Explorer to its default settings. Your browser will start with the familiar start page and search engine—without popups, ads, cookies, but all browser add-ons are deleted too [1]. Make cleaning up your browser and your computer simpler and safer with Security Task Manager.

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Best practices for resolving common issues

The following programs have also been shown useful for a deeper analysis: ASecurity Task Manager examines the active common process on your computer and clearly tells you what it is doing. A good Bantivirus tool detects whether the common.dll file on your PC might be malware slowing down your system. Such unwanted programs are often not classified as viruses by other antivirus software and therefore go undetected.

A clean and tidy computer is the key requirement for avoiding PC trouble. This means running a scan for malware, cleaning your hard drive using 1cleanmgr and 2sfc /scannow, 3uninstalling programs that you no longer need, checking for Autostart programs (using 4msconfig) and enabling Windows' 5Automatic Update. Always remember to perform periodic backups, or at least to set restore points.

Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the 6resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or executing the 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To restore the original performance and remove unnecessary programs, you can 8reset your PC. Your personal files will remain intact, but any programs you installed will need to be reinstalled.



Other processes

common.dll [all]