How to remove the office_pnl virus

Most antivirus programs identify office_pnl.dll as malware.

The office_pnl.dll file is a software component of Trojan SpyDownloader.
Office_pnl.dll is a DLL (Dynamic Link Library) file that is created by Trojan SpyDownloader (also called Troj/SpyDldr-G or TFactory), a malicious computer program that downloads and installs malware. DLL files store data, code and resources needed by one or more programs in order to function correctly. This file is not a critical Windows component and should be removed immediately upon discovery. Trojan SpyDownloader advertises through fake system alerts. It edits the registry and downloads various fake files, which it can then report as spyware and adware, to trick users into buying spyware and adware removal software. The program displays notification messages such as, 'This notice is brought to you by Windows Security Center.'

office_pnl stands for Office Panel

The free file information forum can help you find out how to remove it. If you have additional information about this file, please leave a comment or a suggestion for other users.

Click to Run a Free Virus Scan for the office_pnl.dll malware

Office_pnl.dll file information

The process appears to belong to software Win32 Application by Laguna Media (

Description: Office_pnl.dll is not essential for Windows and will often cause problems. The file office_pnl.dll is located in the C:\Windows\System32 folder. The file size on Windows 10/8/7/XP is 26,624 bytes. 
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 B53455DB-5527-4041-AC41-F86E6947AA47. The process has no file description. The program has no visible window. Office_pnl.dll is located in the Windows folder, but it is not a Windows core file. The office_pnl.dll file is able to monitor web browsers. There is no detailed description of this service. The file is not a Windows core file. office_pnl.dll appears to be a compressed file. Therefore the technical security rating is 77% dangerous.

Recommended: Identify office_pnl.dll related errors

Important: You should check the office_pnl.dll process on your PC to see if it is a threat. If Win32 Application 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.


User Comments

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Best practices for resolving office_pnl issues

The following programs have also been shown useful for a deeper analysis: Security Task Manager examines the active office_pnl process on your computer and clearly tells you what it is doing. Malwarebytes' well-known anti-malware tool tells you if the office_pnl.dll on your computer displays annoying ads, slowing it down. This type of unwanted adware program is not considered by some antivirus software to be a virus and is therefore not marked for cleanup.

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 cleanmgr and sfc /scannow, uninstalling programs that you no longer need, checking for Autostart programs (using msconfig) and enabling Windows' Automatic 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 resmon 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, for Windows 8 and later versions, executing the DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

Other processes

office_pnl.dll [all]