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What is BrowserSafer?

The Malwarebytes research team has determined that BrowserSafer is adware. These adware applications display advertisements not originating from the sites you are browsing.

How do I know if my computer is affected by BrowserSafer?

You may see this entry in your list of installed programs and features:

warning4.png

and these changed proxy settings:

main.png

How did BrowserSafer get on my computer?

Adware applications use different methods for distributing themselves. This particular one was installed by a bundler, but it can also be downloaded from their website:

website.png

How do I remove BrowserSafer?

Our program Malwarebytes can detect and remove this potentially unwanted program.

  • Please download Malwarebytes to your desktop.
  • Double-click mb3-setup-consumer-{version}.exe and follow the prompts to install the program.
  • Then click Finish.
  • Once the program has fully updated, select Scan Now on the Dashboard. Or select the Threat Scan from the Scan menu.
  • If another update of the definitions is available, it will be implemented before the rest of the scanning procedure.
  • When the scan is complete, make sure that all Threats are selected, and click Remove Selected.
  • Restart your computer when prompted to do so.

Is there anything else I need to do to get rid of BrowserSafer?

  • No, Malwarebytes removes BrowserSafer completely.
  • If you are using an older version of Malwarebytes, you may have to remove the Chrome extension manually under Tools > More Tools > Extensions. Click on the bin behind the BrowserSafer entry and confirm Remove in the prompt.

How would the full version of Malwarebytes help protect me?

We hope our application and this guide have helped you eradicate this adware.

As you can see below the full version of Malwarebytes would have protected you against the BrowserSafer adware. It would have blocked their installer, before it was too late.

 

protection1.png


Technical details for experts

Possible signs in FRST logs:
 

 () C:\Program Files (x86)\BrowseSafer\BrowserSafer.exe
 (InstallerTech Co.) C:\Program Files (x86)\BrowseSafer\BrowserSaferMngr.exe
 HKLM\...\Run: [BrowseSafer] => "C:\Program Files\BrowseSafer\BrowserSaferMngr.exe"
 HKLM-x32\...\Run: [BrowseSafer] => C:\Program Files (x86)\BrowseSafer\BrowserSaferMngr.exe [3008928 2018-03-09] (InstallerTech Co.)
 ProxyEnable: [.DEFAULT] => Proxy is enabled.
 ProxyServer: [.DEFAULT] => http=127.0.0.1:13101
 ProxyEnable: [S-1-5-21-1350903546-318028887-1286703239-1003] => Proxy is enabled.
 ProxyServer: [S-1-5-21-1350903546-318028887-1286703239-1003] => http=127.0.0.1:13101
 ManualProxies: 1http=127.0.0.1:13101
 R2 BrowserSafer; C:\Program Files (x86)\BrowseSafer\BrowserSafer.exe [4137376 2018-03-09] () [File not signed]
 C:\ProgramData\boost_interprocess
 C:\ProgramData\BrowserSafer
 C:\Program Files (x86)\BrowseSafer

BrowserSafer (HKLM-x32\...\BrowserSafer) (Version: 2.0.2.4 - BrowserSafer Co ©)

Significant changes made by the installer:

File system details [View: All details] (Selection)
---------------------------------------------------
    Adds the folder C:\Program Files (x86)\BrowseSafer
       Adds the file @BrowserSafer.xpi"="4/20/2018 8:42 AM, 5983 bytes, A
       Adds the file BrowserSafer.exe"="3/9/2018 10:09 AM, 4137376 bytes, A
       Adds the file BrowserSaferMngr.exe"="3/9/2018 10:09 AM, 3008928 bytes, A
       Adds the file BsFilesHelper.exe"="3/9/2018 10:08 AM, 2489856 bytes, A
    Adds the folder C:\ProgramData\boost_interprocess\1523453130
       Adds the file BsReceiverName"="4/20/2018 8:42 AM, 0 bytes, A
    Adds the folder C:\ProgramData\BrowserSafer
       Adds the file Backup.dat"="4/20/2018 8:42 AM, 1414388 bytes, A

Registry details [View: All details] (Selection)
------------------------------------------------
    [HKEY_LOCAL_MACHINE\SOFTWARE\BrowserSafer]
       "rc"="REG_DWORD", 0
       "ServiceHeartBeat"="REG_SZ", "201804200842"
       "timer"="REG_SZ", "201804200842"
       "tm"="REG_DWORD", 1524206537
       "WorkingUrl"="REG_SZ", ""
       "wp"="REG_DWORD", 376
    [HKEY_LOCAL_MACHINE\SOFTWARE\BSTab]
       "hb"="REG_DWORD", 1
       "ps"="REG_DWORD", 1
       "srt"="REG_DWORD", 1
       "ss"="REG_DWORD", 1
       "stt"="REG_DWORD", 1
    [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
       "BrowseSafer"="REG_SZ", ""C:\Program Files\BrowseSafer\BrowserSaferMngr.exe""
    [HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\BrowserSafer]
       "aff"="REG_SZ", ""
    [HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run]
       "BrowseSafer"="REG_SZ", "C:\Program Files (x86)\BrowseSafer\BrowserSaferMngr.exe"
    [HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\BrowserSafer]
       "DisplayIcon"="REG_SZ", "C:\Program Files (x86)\BrowseSafer\BrowserSaferMngr.exe"
       "DisplayName"="REG_SZ", "BrowserSafer"
       "DisplayVersion"="REG_SZ", "2.0.2.4"
       "Publisher"="REG_SZ", "BrowserSafer Co ©"
       "UninstallString"="REG_SZ", "C:\Program Files (x86)\BrowseSafer\BsFilesHelper.exe"
    [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\BrowserSafer]
       "Description"="REG_SZ", "This service will protect all your browsers from potential dangerous pages and sites."
       "DisplayName"="REG_SZ", "BrowserSafer"
       "ErrorControl"="REG_DWORD", 1
       "FailureActions"="REG_BINARY, ............d...d...d.
       "ImagePath"="REG_EXPAND_SZ, "C:\Program Files (x86)\BrowseSafer\BrowserSafer.exe -service"
       "ObjectName"="REG_SZ", "LocalSystem"
       "Start"="REG_DWORD", 2
       "Type"="REG_DWORD", 16
       "WOW64"="REG_DWORD", 1
    [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\BrowserSafer\Security]
       "Security"="REG_BINARY, ........0................p...."......................... ...................................
    [HKEY_USERS\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
       "ProxyEnable"= REG_DWORD, 1
       "ProxyOverride"="REG_SZ", "<-loopback>"
       "ProxyServer"="REG_SZ", "http=127.0.0.1:13101"
    [HKEY_CURRENT_USER\Software\BrowserSafer]
       "BrowserSafer"="REG_DWORD", 1
       "DefaultConnectionSettings"="REG_BINARY, F...........................................................................................
       "ProxyEnable"="REG_DWORD", 0
       "ProxyHttp1.1"="REG_DWORD", 1
       "ProxyOverride"="REG_SZ", ""
       "ProxyServer"="REG_SZ", ""
       "SavedLegacySettings"="REG_BINARY, F...........................................................................................
    [HKEY_CURRENT_USER\Software\BrowserSaferMngr]
       "HideRestoreButton"="REG_SZ", "true"
       "InstallTime"="REG_SZ", "1524206529"
    [HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
       "ProxyEnable"= REG_DWORD, 1
       "ProxyHttp1.1"="REG_DWORD", 1
       "ProxyOverride"="REG_SZ", "<-loopback>"
       "ProxyServer"="REG_SZ", "http=127.0.0.1:13101"

Malwarebytes log:

Malwarebytes
www.malwarebytes.com

-Log Details-
Scan Date: 4/20/18
Scan Time: 9:01 AM
Log File: af5ae79a-4468-11e8-aefd-080027235d76.json
Administrator: Yes

-Software Information-
Version: 3.3.1.2183
Components Version: 1.0.262
Update Package Version: 1.0.4808
License: Premium

-System Information-
OS: Windows 7 Service Pack 1
CPU: x64
File System: NTFS
User: {computername}\{username}

-Scan Summary-
Scan Type: Threat Scan
Result: Completed
Objects Scanned: 246055
Threats Detected: 10
Threats Quarantined: 10
Time Elapsed: 3 min, 5 sec

-Scan Options-
Memory: Enabled
Startup: Enabled
Filesystem: Enabled
Archives: Enabled
Rootkits: Enabled
Heuristics: Enabled
PUP: Detect
PUM: Detect

-Scan Details-
Process: 2
PUP.Optional.SpecialSearchOffer, C:\PROGRAM FILES (X86)\BROWSESAFER\BROWSERSAFER.EXE, Quarantined, [1679], [512255],1.0.4808
PUP.Optional.BrowserSafer, C:\PROGRAM FILES (X86)\BROWSESAFER\BROWSERSAFERMNGR.EXE, Quarantined, [12681], [512678],1.0.4808

Module: 2
PUP.Optional.SpecialSearchOffer, C:\PROGRAM FILES (X86)\BROWSESAFER\BROWSERSAFER.EXE, Quarantined, [1679], [512255],1.0.4808
PUP.Optional.BrowserSafer, C:\PROGRAM FILES (X86)\BROWSESAFER\BROWSERSAFERMNGR.EXE, Quarantined, [12681], [512678],1.0.4808

Registry Key: 0
(No malicious items detected)

Registry Value: 1
PUP.Optional.BrowserSafer, HKLM\SOFTWARE\WOW6432NODE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN|BrowseSafer, Quarantined, [12681], [512678],1.0.4808

Registry Data: 0
(No malicious items detected)

Data Stream: 0
(No malicious items detected)

Folder: 1
Adware.BrowserSafer, C:\PROGRAMDATA\BROWSERSAFER, Quarantined, [754], [432146],1.0.4808

File: 4
Adware.BrowserSafer, C:\ProgramData\BrowserSafer\Backup.dat, Quarantined, [754], [432146],1.0.4808
PUP.Optional.SpecialSearchOffer, C:\PROGRAM FILES (X86)\BROWSESAFER\BROWSERSAFER.EXE, Quarantined, [1679], [512255],1.0.4808
PUP.Optional.BrowserSafer, C:\PROGRAM FILES (X86)\BROWSESAFER\BROWSERSAFERMNGR.EXE, Quarantined, [12681], [512678],1.0.4808
PUP.Optional.BrowserSafer, C:\DOWNLOADS\CPPINSTALLER.EXE, Quarantined, [12681], [512676],1.0.4808

Physical Sector: 0
(No malicious items detected)


(end)

As mentioned before the full version of Malwarebytes could have protected your computer against this threat.
We use different ways of protecting your computer(s):

  • Dynamically Blocks Malware Sites & Servers
  • Malware Execution Prevention

Save yourself the hassle and get protected.

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