MWSBAR.DLL

Adware

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Associated Malware Groups

The unsafe files using this name are associated with the malware group:

Adware

File Behavior

MWSBAR.DLL has been seen to perform the following behavior:

Adds a Registry Key (RUN) to auto start Programs on system start up
Adds new menu items in the Internet Explorer Right Click menu
Changes the Internet Explorer Search Page
Creates a Toolbar Extension for Internet Explorer
Creation and Registers a Browser Helper Object in Internet Explorer
Adds a Registry Key (RUNONCE) to auto start Programs on system start up
Registers a Dynamic Link Libray (DLL) File

MWSBAR.DLL has been the subject of the following behavior:

Created and Registered as a Browser Helper Object in Internet Explorer
Created as a process on disk
Enabled as an In Process Object/Server - Common with DLL Injections
Created as a Toolbar Extension for Internet Explorer
Registered as a Dynamic Link Library File
Added as a Registry auto start to load Program on Boot up
Deleted as a process from disk
Added as a Registry Key (RUNONCE) to auto start Programs on system start up
Registered as a Dynamic Link Libray (DLL) File

Country Of Origin

The filename MWSBAR.DLL was first seen on May 5 2007 in the following geographical regions of the Webroot community:

Germany on May 5 2007
The United States on May 5 2007
Canada on May 15 2007
Sweden on May 15 2007
Spain on Mar 27 2008
Europe on Aug 19 2008
on Aug 19 2008
Brazil on Dec 19 2011

File Name Aliases

MWSBAR.DLL can also use the following file names:

UNINSTALL FUN WEB PRODUCTS.DLL
BACKUP-25510521-214715-422.DLL
UNINST~1.DLL
UNINSTALL MY WEB SEARCH.DLL
DC70.DLL
DC3.DLL
35256681.DLL

Filesizes

The following file size has been seen:

816,648 bytes
409,695 bytes
249,856 bytes
452,016 bytes
376,901 bytes
381,012 bytes

File Type

The filename MWSBAR.DLL refers to many versions of a dynamic link library.

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The filename referred to in this report is often associated with PC infections. If you have a program of this name on your PC and would like to help our research please tell us what you know in the form below:

I have this file on my PC and believe it is an infection
I have this file on my PC and think it has made my PC slower
My firewall asked if I wanted to let this file have access to the Internet
My PC will not work since I noticed this file on it
My antivirus detected this file but won't remove it
I know what this file is and believe it is a Safe program
I am the author of this file and would like to discuss how to have it reclassified as safe

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