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2, 5, 11, 14 66.67%
2, 5, 3, 20 33.33%



MindSpark Toolbar Platform for Internet Explorer and Firefox by Mindspark Interactive Network (Signed)

Warning 3 antivirus scanners has detected malware in various versions of 4zbar.dll.


There are 2 versions of 4zbar.dll in the wild, the latest version being 2, 5, 11, 14. It is integrated as a plugin to Internet Explorer as a Browser Helper Object, often without any obvious user interface, and will load for each instance of IE. The average file size is about 686.48 KB. The file is a digitally signed and issued to Mindspark Interactive Network by VeriSign.

What is 4zbar.dll?

My Web Search by the Mindspark Interactive Network is a browser toolbar, part of the Fun Web Products suite of potentially unwanted applications such as Smiley Central, Cursor Mania, Popular Screensavers and others. The toolbar provides access to search engine results and a 404 Error Redirector among other things to your browser. The My Web Search toolbar could slow down your PC and uses cookies to track your web surfing usage and habits.

About 4zbar.dll (from Mindspark Interactive Network)

MyWebSearch brings together the most comprehensive collection of search tools available to provide you with the information you need when you need it. MyWebSearch allows you to search the web directly


File name:4zbar.dll
Product name:MindSpark Toolbar Platform for Internet Explorer and Firefox
Description:MindSpark Toolbar Platform
Typical file path:C:\Program Files\videodownloadconverter_4z\bar\2.bin\4zbar.dll
Original name:t8Bar.dll
Issued to:Mindspark Interactive Network
Authority (CA):VeriSign
Expiration date:Thursday, July 05, 2012


(Note, the behaviors below are for all versions of 4zbar.dll, select a unique version for details.)
Internet Explorer Browser Helper Object
Located in the registry at 'SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects'
  • BHO CLSID: {312f84fb-8970-4fd3-bddb-7012eac4afc9}
Startup files (all users) run once
Runs under the registry key 'HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce'
  • 'FilmFanaticbar Uninstall' → rundll32 C:\Program Files2\PAUNIN~1.DLL,O -3

MalwareMalware detections

Based on 40+ industry antivirus scanners, 3 of them detected the following malware.
Antivirus engineEngine versionDetectionFile version
avast! 6.0.1289.0 Win32:FunWeb-K [PUP] 2, 5, 3, 20
AVG AdInstaller.FunWeb 2, 5, 3, 20
VIPRE Antivirus 16734 MyWebSearch.J (v) (not malicious) 2, 5, 3, 20

VersionsAll file variations of 4zbar.dll

MD5SHA-1File size
4f9bede2dfc13917d20c3d57e1da9b16 5c5b28cf2242e886dab4cc90744da41e485ccfdc 691.57 KB
0087835a349c537e79583d41252915fb 6554b28247a631100f6eb4f0a77fe7fd6fe191fd 681.39 KB
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