How to remove the iehook virus

Most antivirus programs identify iehook.dll as malware.

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 iehook.dll malware

Iehook.dll file information

The process known as Cardio Module or IeHook Module appears to belong to software Nielsen NetRatings or IeHook Module by unknown.

Description: Iehook.dll is not essential for Windows and will often cause problems. Iehook.dll is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 90,112 bytes (66% of all occurrences) or 94,208 bytes. 
A .dll file (Dynamic Link Library) is a special type of Windows program containing functions that other programs can call. This .dll file can be injected to all running processes and can change or manipulate their behavior. There is no description of the program. The program is not visible. The service has no detailed description. It can change the behavior of other programs or manipulate other programs. The file is not a Windows core file. Iehook.dll is able to record keyboard and mouse inputs. Therefore the technical security rating is 82% dangerous.

Uninstalling this variant: In case of problems with iehook.dll, you can also completely remove Nielsen NetRatings (Control Panel ⇒ Uninstall a Program).

Recommended: Identify iehook.dll related errors

If iehook.dll is located in the C:\Windows\System32 folder, the security rating is 78% dangerous. The file size is 86,016 bytes (50% of all occurrences) or 90,112 bytes. There is no information about the author of the file. The program is not visible. Iehook.dll is an unknown file in the Windows folder. It is able to change the behavior of, or monitor Internet Explorer. The file is not a Windows core file.

If iehook.dll is located in the C:\Windows folder, the security rating is 76% dangerous. The file size is 94,208 bytes. There is no description of the program. The program is not visible. The iehook.dll file is an unknown file in the Windows folder. It is able to monitor web browsers. There is no detailed description of this service. The iehook.dll file is not a Windows core file.

External information from Tony Klein:

Important: You should check the iehook.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.


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Best practices for resolving iehook issues

The following programs have also been shown useful for a deeper analysis: Security Task Manager examines the active iehook process on your computer and clearly tells you what it is doing. Malwarebytes' well-known anti-malware tool tells you if the iehook.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

iehook.dll [all]