Content

MWS!ae842966d3e5

Type
Program
SubType
-
Discovery Date
09/05/2009
Minimum DAT
5732 (09/05/2009)
Updated DAT
5732 (09/05/2009)
Minimum Engine
5300.2777
Description Added
09/05/2009
Description Modified
09/05/2009 2:11 PM (PT)

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Characteristics

This software is not a virus or a Trojan. It is detected as a "potentially unwanted program" (PUP). PUPs are any piece of software that a reasonably security- or privacy-minded computer user may want to be informed of and, in some cases, remove. PUPs are often made by a legitimate corporate entity for some beneficial purpose, but they alter the security state of the computer on which they are installed, or the privacy posture of the user of the system, such that most users will want to be aware of them.

Avert® Labs has observed the following system activities:

ActivityRisk Level
Enumerates open windows
Medium
Creates an Internet Explorer tool bar
Informational
Creates registry keys and data values to persist on OS reboot
Informational
Performs a shell execute of downloaded or existing files
Informational
Registers DLLsInformational

System Changes

These are general defaults for typical path variables. (Although they may differ, these examples are common.):
%WinDir% = \WINDOWS (Windows 9x/ME/XP/Vista), \WINNT (Windows NT/2000)
%SystemDir% = \WINDOWS\SYSTEM (Windows 98/ME), \WINDOWS\SYSTEM32 (Windows XP/Vista), \WINNT\SYSTEM32 (Windows NT/2000)
%ProgramFiles% = \Program Files

The following registry elements have been created:

  • HKEY_LOCAL_MACHINE\software\classes\clsid\{07b18ea1-a523-4961-b6bb-170de4475cca}\
    • (default) = mwsbar bho
  • HKEY_LOCAL_MACHINE\software\classes\clsid\{07b18ea1-a523-4961-b6bb-170de4475cca}\inprocserver32\
    • threadingmodel = apartment
  • HKEY_LOCAL_MACHINE\software\classes\clsid\{07b18ea9-a523-4961-b6bb-170de4475cca}\
    • (default) = my web search
  • HKEY_LOCAL_MACHINE\software\classes\clsid\{07b18ea9-a523-4961-b6bb-170de4475cca}\inprocserver32\
    • threadingmodel = apartment
  • HKEY_LOCAL_MACHINE\software\classes\clsid\{07b18eab-a523-4961-b6bb-170de4475cca}\
    • (default) = mywebsearch settings
  • HKEY_LOCAL_MACHINE\software\classes\clsid\{07b18eab-a523-4961-b6bb-170de4475cca}\inprocserver32\
    • threadingmodel = apartment
  • HKEY_LOCAL_MACHINE\software\classes\clsid\{07b18eab-a523-4961-b6bb-170de4475cca}\miscstatus\
    • (default) = 48
  • HKEY_LOCAL_MACHINE\software\classes\clsid\{07b18eab-a523-4961-b6bb-170de4475cca}\miscstatus\1\
    • (default) = 131473
  • HKEY_LOCAL_MACHINE\software\classes\clsid\{07b18eab-a523-4961-b6bb-170de4475cca}\progid\
    • (default) = mywebsearchtoolbar.settingsplugin.1
  • HKEY_LOCAL_MACHINE\software\classes\clsid\{07b18eab-a523-4961-b6bb-170de4475cca}\typelib\
    • (default) = {07b18ea0-a523-4961-b6bb-170de4475cca}
  • HKEY_LOCAL_MACHINE\software\classes\clsid\{07b18eab-a523-4961-b6bb-170de4475cca}\version\
    • (default) = 3157553
  • HKEY_LOCAL_MACHINE\software\classes\clsid\{07b18eab-a523-4961-b6bb-170de4475cca}\versionindependentprogid\
    • (default) = mywebsearchtoolbar.settingsplugin
  • HKEY_LOCAL_MACHINE\software\classes\clsid\{1e0de227-5ce4-4ea3-ab0c-8b03e1aa76bc}\
    • (default) = my web search quick view
  • HKEY_LOCAL_MACHINE\software\classes\clsid\{1e0de227-5ce4-4ea3-ab0c-8b03e1aa76bc}\inprocserver32\
    • (default) = c:\windows\system32\shdocvw.dll
    • threadingmodel = apartment
  • HKEY_LOCAL_MACHINE\software\classes\clsid\{1e0de227-5ce4-4ea3-ab0c-8b03e1aa76bc}\instance\
    • clsid = {4d5c8c2a-d075-11d0-b416-00c04fb90376}
  • HKEY_LOCAL_MACHINE\software\classes\clsid\{1e0de227-5ce4-4ea3-ab0c-8b03e1aa76bc}\instance\initpropertybag\
    • url = res://c:\docume~1\admini~1\locals~1\temp\mwsbar.dll/105
  • HKEY_LOCAL_MACHINE\software\classes\clsid\{53ced2d0-5e9a-4761-9005-648404e6f7e5}\
    • (default) = mywebsearch toolbar plugin
  • HKEY_LOCAL_MACHINE\software\classes\clsid\{53ced2d0-5e9a-4761-9005-648404e6f7e5}\inprocserver32\
    • threadingmodel = apartment
  • HKEY_LOCAL_MACHINE\software\classes\clsid\{53ced2d0-5e9a-4761-9005-648404e6f7e5}\progid\
    • (default) = mywebsearchtoolbar.toolbarplugin.1
  • HKEY_LOCAL_MACHINE\software\classes\clsid\{53ced2d0-5e9a-4761-9005-648404e6f7e5}\typelib\
    • (default) = {07b18ea0-a523-4961-b6bb-170de4475cca}
  • HKEY_LOCAL_MACHINE\software\classes\clsid\{53ced2d0-5e9a-4761-9005-648404e6f7e5}\versionindependentprogid\
    • (default) = mywebsearchtoolbar.toolbarplugin
  • HKEY_LOCAL_MACHINE\software\classes\interface\{07b18eaa-a523-4961-b6bb-170de4475cca}\
    • (default) = imywebsearchsettings
  • HKEY_LOCAL_MACHINE\software\classes\interface\{07b18eaa-a523-4961-b6bb-170de4475cca}\proxystubclsid\
    • (default) = {00020424-0000-0000-c000-000000000046}
  • HKEY_LOCAL_MACHINE\software\classes\interface\{07b18eaa-a523-4961-b6bb-170de4475cca}\proxystubclsid32\
    • (default) = {00020424-0000-0000-c000-000000000046}
  • HKEY_LOCAL_MACHINE\software\classes\interface\{07b18eaa-a523-4961-b6bb-170de4475cca}\typelib\
    • (default) = {07b18ea0-a523-4961-b6bb-170de4475cca}
    • version = 3157553
  • HKEY_LOCAL_MACHINE\software\classes\interface\{07b18eac-a523-4961-b6bb-170de4475cca}\
    • (default) = _imywebsearchsettingsevents
  • HKEY_LOCAL_MACHINE\software\classes\interface\{07b18eac-a523-4961-b6bb-170de4475cca}\proxystubclsid\
    • (default) = {00020420-0000-0000-c000-000000000046}
  • HKEY_LOCAL_MACHINE\software\classes\interface\{07b18eac-a523-4961-b6bb-170de4475cca}\proxystubclsid32\
    • (default) = {00020420-0000-0000-c000-000000000046}
  • HKEY_LOCAL_MACHINE\software\classes\interface\{07b18eac-a523-4961-b6bb-170de4475cca}\typelib\
    • (default) = {07b18ea0-a523-4961-b6bb-170de4475cca}
    • version = 3157553
  • HKEY_LOCAL_MACHINE\software\classes\interface\{f87d7fb5-9dc5-4c8c-b998-d8dfe02e2978}\
    • (default) = imywebsearchsearchscope
  • HKEY_LOCAL_MACHINE\software\classes\interface\{f87d7fb5-9dc5-4c8c-b998-d8dfe02e2978}\proxystubclsid\
    • (default) = {00020424-0000-0000-c000-000000000046}
  • HKEY_LOCAL_MACHINE\software\classes\interface\{f87d7fb5-9dc5-4c8c-b998-d8dfe02e2978}\proxystubclsid32\
    • (default) = {00020424-0000-0000-c000-000000000046}
  • HKEY_LOCAL_MACHINE\software\classes\interface\{f87d7fb5-9dc5-4c8c-b998-d8dfe02e2978}\typelib\
    • (default) = {07b18ea0-a523-4961-b6bb-170de4475cca}
    • version = 3157553
  • HKEY_LOCAL_MACHINE\software\classes\mywebsearchtoolbar.settingsplugin.1\
    • (default) = mywebsearch settings plugin
  • HKEY_LOCAL_MACHINE\software\classes\mywebsearchtoolbar.settingsplugin.1\clsid\
    • (default) = {07b18eab-a523-4961-b6bb-170de4475cca}
  • HKEY_LOCAL_MACHINE\software\classes\mywebsearchtoolbar.settingsplugin\
    • (default) = mywebsearch settings plugin
  • HKEY_LOCAL_MACHINE\software\classes\mywebsearchtoolbar.settingsplugin\clsid\
    • (default) = {07b18eab-a523-4961-b6bb-170de4475cca}
  • HKEY_LOCAL_MACHINE\software\classes\mywebsearchtoolbar.settingsplugin\curver\
    • (default) = mywebsearchtoolbar.settingsplugin.1
  • HKEY_LOCAL_MACHINE\software\classes\mywebsearchtoolbar.toolbarplugin.1\
    • (default) = mywebsearch toolbar plugin
  • HKEY_LOCAL_MACHINE\software\classes\mywebsearchtoolbar.toolbarplugin.1\clsid\
    • (default) = {53ced2d0-5e9a-4761-9005-648404e6f7e5}
  • HKEY_LOCAL_MACHINE\software\classes\mywebsearchtoolbar.toolbarplugin\
    • (default) = mywebsearch toolbar plugin
  • HKEY_LOCAL_MACHINE\software\classes\mywebsearchtoolbar.toolbarplugin\clsid\
    • (default) = {53ced2d0-5e9a-4761-9005-648404e6f7e5}
  • HKEY_LOCAL_MACHINE\software\classes\mywebsearchtoolbar.toolbarplugin\curver\
    • (default) = mywebsearchtoolbar.toolbarplugin.1
  • HKEY_LOCAL_MACHINE\software\classes\typelib\{07b18ea0-a523-4961-b6bb-170de4475cca}\1.0\
    • (default) = toolbar 1.0 type library
  • HKEY_LOCAL_MACHINE\software\classes\typelib\{07b18ea0-a523-4961-b6bb-170de4475cca}\1.0\flags\
    • (default) = 48
  • HKEY_LOCAL_MACHINE\software\focusinteractive\bar\switches\
    • aim.exe = 49
    • au = 48
    • icq.exe = 49
    • icqlite.exe = 49
    • incmail.exe = 49
    • msimn.exe = 49
    • msmsgs.exe = 49
    • msn.exe = 49
    • msnmsgr.exe = 49
    • outlook.exe = 49
    • waol.exe = 49
    • ypager.exe = 49
  • HKEY_LOCAL_MACHINE\Software\Microsoft\internet explorer\low rights\elevationpolicy\{d1a71fa0-ff48-48dd-9b6d-7a13a3e42127}\
    • appname = m3medint.exe
    • apppath = c:\documents and settings\administrator\local settings\temp
    • policy = 3
  • HKEY_LOCAL_MACHINE\Software\Microsoft\internet explorer\low rights\elevationpolicy\{ddb1968e-ead6-40fd-8dae-ff14757f60c7}\
    • appname = m3slsrch.exe
    • apppath = c:\documents and settings\administrator\local settings\temp
    • policy = 3
  • HKEY_LOCAL_MACHINE\Software\Microsoft\internet explorer\low rights\elevationpolicy\{f138d901-86f0-4383-99b6-9cdd406036da}\
    • appname = m3srchmn.exe
    • apppath = c:\documents and settings\administrator\local settings\temp
    • policy = 3
  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\currentversion\explorer\browser helper objects\{07b18ea1-a523-4961-b6bb-170de4475cca}\
    • (default) = mwsbar bho
  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\currentversion\uninstall\mywebsearch bar uninstall\
    • displayname = my web search bar
    • helplink = http://helpint.mywebsearch.com/
    • publisher = my web search
    • uninstallstring = rundll32 c:\docume~1\admini~1\locals~1\temp
      \mwsbar.dll,o
    • urlinfoabout = http://helpint.mywebsearch.com/intlinfo/eula/eula.jhtml
  • HKEY_LOCAL_MACHINE\software\mywebsearch\bar\
    • dssenabled = 48
    • id = 92051d3f-5349-4450-9300-2e226a607e8d
  • The following registry elements have been changed:

  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\currentversion\run\
    • my web search bar = rundll32 c:\docume~1\admini~1\locals~1\temp
      \mwsbar.dll,s
  • Removal

    All Users:

    Please use the following instructions for all supported versions of Windows to remove threats and other potential risks:

    1.Disable System Restore (Windows ME/XP only).

    2.Update to current engine and DAT files for detection and removal.

    3.Run a complete system scan.

    Modifications made to the system Registry and/or INI files for the purposes of hooking system startup, will be successfully removed if cleaning with the recommended engine and DAT combination (or higher).

    General repair may be unsuccessful in some instances. If this occurs, please submit a sample for further evaluation.

    Aliases

    Aliases

      N/A