Threat Explorer

The Threat Explorer is a comprehensive resource consumers can turn to for daily, accurate, up-to-date information on the latest threats, risks and vulnerabilities.

Adware.Rotator

Adware.Rotator

Updated:
May 10, 2011
Risk Impact:
Low
Systems Affected:
Windows

Behavior

Adware.Rotator is a risk that connects to predetermined websites, increasing click counts for pay-per-click affiliates.

Antivirus Protection Dates

  • Initial Rapid Release version October 02, 2014 revision 022
  • Latest Rapid Release version February 01, 2015 revision 020
  • Initial Daily Certified version May 10, 2011 revision 024
  • Latest Daily Certified version September 22, 2011 revision 024
  • Initial Weekly Certified release date May 11, 2011
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.
When the risk is executed, it creates the following files:
  • %System%/_[RANDOM FILE NAME].dll
  • %System%/[RANDOM FILE NAME].dll

It also creates the following non-malicious file:
%System%/[RANDOM FILE NAME TWO].exe

The risk then creates the following registry entry, so that it starts when Windows starts:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\"[RANDOM FILE NAME]" = "%System%\regsvr32.exe %System%\[RANDOM FILE NAME].dll"

The risk also creates the following registry entries:
  • HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\"[RANDOM ID]" = "brincome browser plug-in"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\[RANDOM ID]\"InProcServer32" = "%System%\[RANDOM FILE NAME].dll"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\[RANDOM FILE NAME TWO]\"DisplayName" = "Performance Solution Brincome."
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\[RANDOM FILE NAME TWO]\"UninstallString" = "%System%\[RANDOM FILE NAME 2].exe /i=%systemdir%\[RANDOM FILE NAME].dll" /d=[RANDOM FILE NAME TWO]"

It then creates a browser helper object for Internet Explorer with the following name:
Brincome Browser Plugin

The risk connects to one of the following URLs:
  • [http://]bx.brincome.biz/bc/nsi_ins[REMOVED]
  • [http://]bx.brincome.biz/bc/nsi_unin[REMOVED]
  • [http://]bx.brincome.biz/bc/nsi_ins[REMOVED]
  • [http://]bx.rincome.biz/bc/nsi_unin[REMOVED]

The risk then sends specially crafted HTTP POST requests to predetermined websites. These POST requests are designed to simulate clicks on advertisements, increasing the click count for an affiliate involved in a pay-per-click program.
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 them using from 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 them using from 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.