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Adware.BlocknSurf

Adware.BlocknSurf

Updated:
April 29, 2015
Infection Length:
Varies
Name:
BlocknSurf
Risk Impact:
Low
Systems Affected:
Windows

Behavior

Adware.BlocknSurf is an adware program that displays advertisements in the computer's web browser.

Antivirus Protection Dates

  • Initial Rapid Release version April 29, 2015 revision 005
  • Latest Rapid Release version December 08, 2017 revision 022
  • Initial Daily Certified version April 29, 2015 revision 019
  • Latest Daily Certified version December 09, 2017 revision 001
  • Initial Weekly Certified release date April 29, 2015
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.
BlocknSurf is an adware program that claims to block children from viewing adult content websites. The program comes bundled with other software.

Once executed, the program creates the following files:
  • %ProgramFiles%\ver8BlockAndSurf\181.crx
  • %ProgramFiles%\ver8BlockAndSurf\181.dat
  • %ProgramFiles%\ver8BlockAndSurf\181.dll
  • %ProgramFiles%\ver8BlockAndSurf\181.xpi
  • %ProgramFiles%\ver8BlockAndSurf\a.db
  • %ProgramFiles%\ver8BlockAndSurf\A4BlockAndSurfn07.dll
  • %ProgramFiles%\ver8BlockAndSurf\A4BlockAndSurfn07.exe
  • %ProgramFiles%\ver8BlockAndSurf\b.db
  • %ProgramFiles%\ver8BlockAndSurf\BlockAndSurf.exe
  • %ProgramFiles%\ver8BlockAndSurf\g6qP181.bin
  • %ProgramFiles%\ver8BlockAndSurf\g6qP181.dll
  • %ProgramFiles%\ver8BlockAndSurf\g6qP181.exe
  • %ProgramFiles%\ver8BlockAndSurf\Sqlite3.dll
  • %ProgramFiles%\ver8BlockAndSurf\Uninstall.exe
  • %ProgramFiles%\ver8BlockAndSurf\y9U.exe
  • %Windir%\Tasks\BlockAndSurf Update.job
  • %SystemDrive%\Documents and Settings\Administrator\Application Data\Mozilla\Firefox\Profiles\3ydui6lj.default\user.js
  • %Temp%\952CC169-4585-4C18-0504-AC4AA1171444.dll
  • %Temp%\952CC169-4585-4C18-0504-AC4AA1171444.exe
  • %Temp%\CC3CC5C7-8C0D-7143-0F36-CF1D43528464.exe
  • %Temp%\jllkldhiikmbainmmghgihcednophpne\b.html
  • %Temp%\jllkldhiikmbainmmghgihcednophpne\b.js
  • %Temp%\jllkldhiikmbainmmghgihcednophpne\c.js
  • %Temp%\jllkldhiikmbainmmghgihcednophpne\icon128.png
  • %Temp%\jllkldhiikmbainmmghgihcednophpne\icon16.png
  • %Temp%\jllkldhiikmbainmmghgihcednophpne\icon48.png
  • %Temp%\jllkldhiikmbainmmghgihcednophpne\manifest.json

The program also creates the following registry entries:
  • HKEY_LOCAL_MACHINE\SOFTWARE\Classes\AppID\{A5371E44-713A-46CD-B7D2-D73308E16977}\"AppIDFlags" = "D40"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Classes\AppID\{A5371E44-713A-46CD-B7D2-D73308E16977}\"AuthenticationLevel" = "5540A2C3"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\"{8237D62B-F1E0-A855-5AD0-5BA332F5512F}" = "BlockAndSurf"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{8237D62B-F1E0-A855-5AD0-5BA332F5512F}\"TypeLib" = "{73ED020D-FC76-9911-85B2-645A7E877B32}"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{8237D62B-F1E0-A855-5AD0-5BA332F5512F}\"Version" = "1.0"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\"{53BBE022-983A-899F-F042-1EBDB9C41AE7}" = "IInjectObject"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{53BBE022-983A-899F-F042-1EBDB9C41AE7}\"ProxyStubClsid" = "[HEXADECIMAL VALUE]"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{53BBE022-983A-899F-F042-1EBDB9C41AE7}\"ProxyStubClsid32" = "[HEXADECIMAL VALUE]"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{53BBE022-983A-899F-F042-1EBDB9C41AE7}\"TypeLib" = "{73ED020D-FC76-9911-85B2-645A7E877B32}"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{53BBE022-983A-899F-F042-1EBDB9C41AE7}\TypeLib\"Version" = "1.0"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{73ED020D-FC76-9911-85B2-645A7E877B32}\"1.0" = "IEInjectLib"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{73ED020D-FC76-9911-85B2-645A7E877B32}\1.0\0\"HELPDIR" = "%ProgramFiles%\ver8BlockAndSurf"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{73ED020D-FC76-9911-85B2-645A7E877B32}\1.0\0\"win32" = "%ProgramFiles%\ver8BlockAndSurf\181.dll"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{73ED020D-FC76-9911-85B2-645A7E877B32}\1.0\"FLAGS" = "30000000"
  • HKEY_LOCAL_MACHINE\SOFTWARE\microsoft\Windows\CurrentVersion\Uninstall\C9E64218-5F37-9A5D-1649-D5949C45E319\"DisplayName" = "BlockAndSurf"
  • HKEY_LOCAL_MACHINE\SOFTWARE\microsoft\Windows\CurrentVersion\Uninstall\C9E64218-5F37-9A5D-1649-D5949C45E319\"Publisher" = "BlockAndSurf-software"
  • HKEY_LOCAL_MACHINE\SOFTWARE\microsoft\Windows\CurrentVersion\Uninstall\C9E64218-5F37-9A5D-1649-D5949C45E319\"UninstallString" = "%ProgramFiles%\ver8BlockAndSurf\Uninstall.exe"
  • HKEY_LOCAL_MACHINE\SOFTWARE\microsoft\Windows\CurrentVersion\Uninstall\C9E64218-5F37-9A5D-1649-D5949C45E319\"Version" = "181"
  • HKEY_CURRENT_USER\software\BlockAndSurf\"it" = "1430299366"
  • HKEY_CURRENT_USER\software\BlockAndSurf\"id" = "FF4FD985D1964AAA"
  • HKEY_CURRENT_USER\software\BlockAndSurf\"ia" = "IE,FF"
  • HKEY_CURRENT_USER\software\BlockAndSurf\"version" = "181"
  • HKEY_CURRENT_USER\software\Microsoft\Windows\CurrentVersion\Ext\Stats\{92780B25-18CC-41C8-B9BE-3C9C571A8263}\iexplore\"Count" = "F"
  • HKEY_CURRENT_USER\software\Microsoft\Windows\CurrentVersion\Ext\Stats\{92780B25-18CC-41C8-B9BE-3C9C571A8263}\iexplore\"Time" = "DF07040003001D000900220012003801"
  • HKEY_CURRENT_USER\software\Microsoft\Windows\CurrentVersion\Ext\Stats\{E2E2DD38-D088-4134-82B7-F2BA38496583}\iexplore\"Count" = "18"
  • HKEY_CURRENT_USER\software\Microsoft\Windows\CurrentVersion\Ext\Stats\{E2E2DD38-D088-4134-82B7-F2BA38496583}\iexplore\"Time" = "DF07040003001D000900220012009601"
  • HKEY_CURRENT_USER\software\Microsoft\Windows\CurrentVersion\Ext\Stats\{FB5F1910-F110-11D2-BB9E-00C04F795683}\iexplore\"Count" = "18"
  • HKEY_CURRENT_USER\software\Microsoft\Windows\CurrentVersion\Ext\Stats\{FB5F1910-F110-11D2-BB9E-00C04F795683}\iexplore\"Time" = "DF07040003001D00090022001300AF02"
  • HKEY_CURRENT_USER\software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\"DefaultConnectionSettings" = "[HEXADECIMAL VALUE]"
  • HKEY_CURRENT_USER\software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\"SavedLegacySettings" = "[HEXADECIMAL VALUE]"
  • HKEY_CURRENT_USER\software\Microsoft\Windows\CurrentVersion\Policies\Ext\"ListBox_Support_CLSID" = "1"
  • HKEY_CURRENT_USER\software\Microsoft\Windows\CurrentVersion\Policies\Ext\"IgnoreFrameApprovalCheck" = "1"
  • HKEY_CURRENT_USER\software\Mozilla\Firefox\Extensions\"{7EAB8E98-2667-364D-28B9-A242AABBB854}" = "%ProgramFiles%\ver8BlockAndSurf\181.xpi"

The program creates a service with the following properties:
  • Display name: BlockAndSurf
  • Image path: %ProgramFiles%\ver8BlockAndSurf\g6qP181.exe
  • Startup type: Automatic

It then creates the following registry subkey to register itself as a service:
  • HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\BlockAndSurf

The program then displays advertisements in the computer's web browser.
You may have arrived at this page either because you have been alerted by your Symantec product about this risk, or you are concerned that your computer has been affected by this risk.

Before proceeding further we recommend that you run a full system scan . If that does not resolve the problem you can try one of the options available below.



FOR NORTON USERS
If you are a Norton product user, we recommend you try the following resources to remove this risk.


Removal Tool

If you have an infected Windows system file, you may need to replace it using the Windows installation CD .


How to reduce the risk of infection
The following resources provide further information and best practices to help reduce the risk of infection.


FOR BUSINESS USERS
If you are a Symantec business product user, we recommend you try the following resources to remove this risk.


Identifying and submitting suspect files
Submitting suspicious files to Symantec allows us to ensure that our protection capabilities keep up with the ever-changing threat landscape. Submitted files are analyzed by Symantec Security Response and, where necessary, updated definitions are immediately distributed through LiveUpdate™ to all Symantec end points. This ensures that other computers nearby are protected from attack. The following resources may help in identifying suspicious files for submission to Symantec.


Removal Tool

If you have an infected Windows system file, you may need to replace it using the Windows installation CD .


How to reduce the risk of infection
The following resource provides further information and best practices to help reduce the risk of infection.
Protecting your business network



MANUAL REMOVAL
The following instructions pertain to all current Symantec antivirus products.


1. Performing a full system scan
How to run a full system scan using your Symantec product


2. Restoring settings in the registry
Many risks make modifications to the registry, which could impact the functionality or performance of the compromised computer. While many of these modifications can be restored through various Windows components, it may be necessary to edit the registry. See in the Technical Details of this writeup for information about which registry keys were created or modified. Delete registry subkeys and entries created by the risk and return all modified registry entries to their previous values.