How to remove the e404d virus

Most antivirus programs identify e404d.dll as malware—for example Symantec identifies it as Downloader or Adware.Adpopup, and Kaspersky identifies it as Trojan-Downloader.Win32.Agent.fsi or Trojan.Win32.Agent.cvv.

The e404d.dll file is a software component of Trojan.Zlob.
E404d.dll is a DLL (Dynamic Link Library) file that is created by the Zlob Trojan, a malicious computer program that claims to be a much needed video codec in the form of ActiveX. 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.Zlob constantly pops up advertisement which appears much like real Microsoft Windows warnings, notifying the user that the system has been infected with spyware. These popups trigger the download of fake anti-spyware programs which carry the Trojan horse. The Trojan may also download 'atnvrsinstall.exe' which turns the Windows Security shield icon into a notification for an anti-virus installation file from Microsoft. Running this file can cause a lot of problems on computers and networks. Computer shutting down or rebooting with random comments is a typical symptom.

E404D stands for E404 Documentation

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 e404d.dll malware

E404d.dll file information

The process belongs to software avp by Melkosoft (

Description: E404d.dll is not essential for Windows and will often cause problems. E404d.dll is located in the C:\Windows\System32 folder. Known file sizes on Windows 10/8/7/XP are 51,712 bytes (57% of all occurrences) or 46,592 bytes. 
The program has a visible window. The process has no file description. The process starts when Windows starts (see Registry key: ShellServiceObjectDelayLoad). The e404d.dll file is not a Windows core file. E404d.dll is able to monitor applications. e404d.dll appears to be a compressed file. Therefore the technical security rating is 32% dangerous.

Recommended: Identify e404d.dll related errors

Important: You should check the e404d.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.


User Comments

There are no user opinions yet. Why not be the first to write a short comment?

Do you have additional information? Help other users!
What do you know about e404d.dll:
How would you rate it:
Link for more info:
Your Name:

Best practices for resolving e404d issues

The following programs have also been shown useful for a deeper analysis: Security Task Manager examines the active e404d process on your computer and clearly tells you what it is doing. Malwarebytes' well-known anti-malware tool tells you if the e404d.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

e404d.dll [all]