Troj/StartPa-HB

Category: Viruses and Spyware
Type: Trojan
Prevalence: Small Number of Reports

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Aliases

  • Trojan.Win32.StartPage.hb

Characteristics

  • Modifies data on the computer
  • Installs itself in the registry

Affected Operating Systems

Windows

Recovery Instructions:

Please follow the instructions for removing Trojans.

You will need to edit the following registry entries. Please read the warning about editing the registry.

Renaming the registry editor

  • Using Windows explorer, browse to the Windows folder (usually C:\Windows or C:\Winnt) right-click Regedit.exe and make a copy of it.
  • Rename the copy of Regedit.exe to Regedit.com.
  • At the taskbar, click Start|Run. Type 'Regedit.com' and press Return. The registry editor opens.


Editing the registry

Before you edit the registry, you should make a backup. On the 'Registry' menu, click 'Export Registry File'. In the 'Export range' panel, click 'All', then save your registry as Backup.

Locate the HKEY_CLASSES_ROOT entry:

Typically an unaltered registry entry will be set to

HKCR\exefile\shell\open\command\(default) = "%1" %*

the altered registry entry will be

HKCR\exefile\shell\open\command\(default) = <path to Trojan> "%1" %*

delete only the path to the Trojan. Do not delete anything else.

Locate the HKEY_CURRENT_USER entries:

HKCU\Software\Microsoft\Internet Explorer\Main\Start Page

HKCU\Software\Microsoft\Internet Explorer\Main\Search Page

HKCU\Software\Microsoft\Internet Explorer\Main\Search Bar

right-click them and select 'Delete'. Click OK.

Locate the HKEY_LOCAL_MACHINE entry:

HKLM\Software\Microsoft\Windows\CurrentVersion\Run\svchost

and delete it if it exists.

Locate the HKEY_LOCAL_MACHINE entries:

HKLM\Software\Microsoft\Internet Explorer\Main\Start Page

HKLM\Software\Microsoft\Internet Explorer\Main\Search Page

HKLM\Software\Microsoft\Internet Explorer\Main\Search Bar

HKLM\Software\Microsoft\Internet Explorer\Search\SearchAssistant

right-click them and select 'Delete'. Click OK.

Locate the HKEY_LOCAL_MACHINE entries:

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\URL\DefaultPrefix

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\URL\Prefixes\www

right-click them and select 'Modify'. Delete the web address leaving only "http://". Click OK.

Close the registry editor.

Delete the links added by the Trojan from your Favorites folder in Internet Explorer.

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