How to remove the NaviHelper virus

Most antivirus programs identify NaviHelper.dll as malware, such as Symantec identifies it as Adware.Navihelper, and Kaspersky identifies it as not-a-virus:AdWare.Win32.Navi.
The free file information forum can help you find out how to remove it. If you know more about this file, please leave a comment or a hint for other users.

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

NaviHelper.dll file information

The process appears to be part of software Direct Show Ogg Vorbis Filter or Citrix Web Client by unknown.

Description: NaviHelper.dll is located in the folder C:\Windows\System32 or sometimes in the folder C:\Windows or in a subfolder of C:\Windows. Known file sizes on Windows 7/XP are 442,368 bytes (85% of all occurrences) or 228,352 bytes.
This .dll file is a Browser Helper Object (BHO) that runs automatically every time you start your Internet browser. BHOs are not stopped by personal firewalls, because they are identified by the firewall as your browser itself. BHOs are often used by adware and spyware. The unique ID of this BHO is 3E422F49-1566-40D3-B43D-077EF739AC32. The program has no visible window. File NaviHelper.dll is able to monitor Internet browser. The service has no detailed description. File NaviHelper.dll is not a Windows system file. The file is an unknown file in the Windows folder. Therefore the technical security rating is 72% dangerous, however also read the users reviews.
If you want to remove the program completely, go to Control Panel ⇒ Software ⇒ Direct Show Ogg Vorbis Filter or Citrix Web Client.

Recommended: Identify NaviHelper.dll related errors

Important: Some malware camouflages itself as NaviHelper.dll, particularly when located in the c:\windows or c:\windows\system32 folder. Therefore, you should check the NaviHelper.dll process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.

Score

User Comments

displays ads and hard to remove since it's a two-part adware meaning if one part is deleted, the other part will be deleted. The solution is to kill both "C:\WINDOWS\system32\NaviHelper.dll" and "C:\WINDOWS\system32\host.dat"
supercle

Show popups in Internet Explorer

Adware which opens unwanted advertising windows
Konrad Fransson (further information)

Summary: Average user rating of NaviHelper.dll: based on 3 votes with 3 reviews.

3 users suspect danger.

NaviHelper scanner

Security Task Manager shows all running Windows tasks including embedded hidden functions (e.g. keyboard or browser monitoring, autostart entry). A unique security risk rating indicates the likelihood of the process being potential spyware, malware, keylogger or a Trojan.

MalwareBytes detects and removes sleeping spyware, adware, trojans, keyloggers, malware and tracking threats from your hard disk. Ideal supplement to Security Task Manager.

SpeedUpMyPC scans, cleans, repairs and optimizes your computer.

Other processes