2,6,1562,220 16.67%
2,6,1339,144 83.33%



Application Manager by Bit89 Inc. (Signed)

Remove browserdefender.exe
Warning 36 antivirus scanners has detected malware in various versions of browserdefender.exe.


There are 2 versions of browserdefender.exe in the wild, the latest version being 2,6,1562,220. It is started as a Windows Service with the name 'BrowserDefendert' and described as “Your browser protector service”. . This is executed as a shared service (which simply means that this service can share a process with other Win32 services). The average file size is about 2.7 MB. The file is a digitally signed and issued to Bit89 Inc. by Some variations of the file have been seen to be installed with the program BrowserDefender from Bit89 Inc. During the process's lifecycle, the typical CPU resource utilization is about 0.0080% including both foreground and background operations, the average private memory consumption is about 3.8 MB with the maximum memory reaching around 7.53 MB. Addionally, typically read and write I/O disk operations is about 496 Bytes per minute for reads and 22 Bytes per minute for writes.


File name:browserdefender.exe
Publisher:PerformerSoft LLC
Product name:Application Manager
Typical file path:C:\ProgramData\browserdefender\2.6.1339.144\{c16c1ccb-7046-4e5c-a2f3-533ad2fec8e8}\browserdefender.exe
Issued to:Bit89 Inc.
Authority (CA)
Effective date:Tuesday, September 4, 2012
Expiration date:Friday, September 4, 2015
Windows Service
Service name:BrowserDefendert
Description:“Your browser protector service”

ResourcesPrograms installed in

(Note, the programs listed below are for all versions of Application Manager.)
Bit89 Inc
  80% remove
PerformerSoft/Bit89 BrowserDefender, a variant of the Browser Protector Software is a web browser add-in classified mostly a potentially unwanted application that used to be bundled with PerformerSoft...


(Note, the behaviors below are for all versions of browserdefender.exe, select a unique version for details.)
Runs under 'SYSTEM\CurrentControlSet\Services' as a shared service by the Service Host (svchost.exe)
  • 'BrowserDefendert'

MalwareMalware detections

Based on 40+ industry antivirus scanners, 36 of them detected the following malware.
Antivirus engineEngine versionDetectionFile version
AhnLab V3 Internet Security 2013.10.09 Downloader/Win32.MultiDl 2,6,1562,220
Avira AntiVir APPL/BProtector.Gen 2,6,1339,144
Avira AntiVir APPL/Bprotect.E 2,6,1562,220
Antiy Labs AVL Trojan/Win32.MultiDL 2,6,1562,220
avast! 8.0.1489.320 Win32:BProtect-A [PUP] 2,6,1339,144
avast! 8.0.1489.320 Win32:Adware-BAC [PUP] 2,6,1562,220
AVG Generic5.AFZM 2,6,1339,144
AVG Bprotect.B 2,6,1562,220
Comodo Internet Security 17075 Application.Win32.Bprotect.~L 2,6,1562,220
Dr.Web Adware.BGuard.18 2,6,1339,144
Dr.Web Adware.BGuard.27 2,6,1562,220
ESET NOD32 7.8846 a variant of Win32/bProtector.A 2,6,1339,144
ESET NOD32 7.8893 a variant of Win32/bProtector.A 2,6,1562,220
Fortinet Riskware/BProtectBHO 2,6,1562,220
F-Secure 11.0.19100.45 Application:W32/BProtector.A 2,6,1562,220
G Data 13.9.22 Win32.Application.BHO.A 2,6,1339,144
G Data 13.10.22 Win32.Application.BHO.A 2,6,1562,220
K7 AntiVirus 9.173.9818 Riskware 2,6,1562,220
K7GW Riskware 2,6,1562,220
Kaspersky not-a-virus:AdWare.Win32.Bromngr.k 2,6,1339,144
Kaspersky Trojan-Downloader.Win32.MultiDL.k 2,6,1562,220
Kingsoft 2013.4.9.267 Win32.Troj.Generic.a.(kcloud) 2,6,1339,144
Kingsoft 2013.4.9.267 Win32.Troj.Generic.a.(kcloud) 2,6,1562,220
Malwarebytes PUP.Optional.PerformerSoft.A 2,6,1339,144
Malwarebytes PUP.Optional.BrowserProtect.A 2,6,1562,220
McAfee 5.600.1067 Adware-Bprotect.b 2,6,1339,144
McAfee 5.600.1067 Adware-Bprotect.b 2,6,1562,220
McAfee Gateway Anti-Malware v2013-dat Artemis!013A330F16B1 2,6,1339,144
McAfee Gateway Anti-Malware v2013-dat Artemis!DAF56EC5E652 2,6,1562,220
PC Tools Adware.GoonSquad!rem 2,6,1339,144
Sophos 4.93.0 BProtector 2,6,1339,144
Sophos 4.93.0 BProtector 2,6,1562,220
Symantec 20131.1.5.61 Adware.GoonSquad 2,6,1339,144
Vba32 AntiVirus TrojanDownloader.MultiDL 2,6,1562,220
VIPRE Antivirus 21842 Bprotector (fs) 2,6,1339,144
VIPRE Antivirus 22222 Bprotector (fs) 2,6,1562,220

VersionsAll file variations of browserdefender.exe

MD5SHA-1File size
daf56ec5e652f629d6d2b3930ff199f6 5b1b511c55f5e656c01c34fc3812af210a942d7b 2.71 MB
013a330f16b1cecbde5cb6f921689523 9c1f62b0654c2e3193f608ef490de5495708a583 2.7 MB

Windows OS versionsDistribution by Windows OS

OS versiondistribution
Windows 7 Ultimate 35.56%
Microsoft Windows XP 33.33%
Windows 8 8.89%
Windows 8 Pro 6.67%
Windows Vista Home Premium 6.67%
Windows 7 Home Premium 4.44%
Windows Vista Ultimate 2.22%
Windows 7 Professional 2.22%

Distribution by countryDistribution by country

Vietnam installs about 14.29% of Application Manager.

OEM distributionDistribution by PC manufacturer

PC Manufacturerdistribution
Dell 37.74%
Acer 22.64%
Hewlett-Packard 15.09%
Intel 11.32%
Toshiba 7.55%
American Megatrends 5.66%
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