Home » News » Security basics » Unregistering Malicious DLL Files

Unregistering Malicious DLL Files

By Bryan on October 20, 2009 | Security basics

The DLL files

DLLs (Dynamically Linked Library files) contain a list of functions that are used by various programs. Usually DLLs carry the essential information which is needed for the system to function properly. If one or several DLL files are corrupt or missing it may stop your computer from working or might even cause a system crash.

Why malicious DLLs should be unregistered

Malicious programs may damage or replace the regular DLL files so that removing them would harm the computer. If a false DLL is used by a legitimate program and the file is removed by the user, the software might become unusable no matter whether the DLL was vital for the program or not. So it is very important to unregister DLL files before removing them. Deleting DLL files manually involves a high amount of risk therefore we strongly recommend using a legitimate system security software. However, if you want to remove the malicious files yourself you should follow the bellow instructions.

Unregistering malicious DLL files

Open Command Prompt window

command prompt

Go to Start menu and select Run process. Type in cmd and click OK

Unregister malicious DLL

Type regsvr32 /u filename.dll (filename.dll should contain the name of the file you want to unregister) into the Comand Prompt window and press Enter.

regsvr

More Security basics news

Reminder after Zappos hack: how to protect yourself online?

Reminder after Zappos hack: how to protect yourself online?

In Kentucky Sunday night Zappos server was hacked. Hackers were able to get a pass to personal records of 24 million Zappos customers which means if you used the site you can be a victim of this attack as well.Here are few tips and advises of how you can protect yourself:1. Use a strong password. The best advice is to rotate through a series of passwords by changing them on a regular basis. It is strongly recommended to create one tough password and use it just for only your e-mail account. Read more.


News categories

Latest news