Sophos

Troj/Bizten-L

Aliases
  • Generic
  • StartPage
  • trojan
Category
Type
What to do
Prevalence low high

Summary

 
Included in our products from June 2004 (3.82)
Protection available since 11 May 2004 13:59:27 (GMT)
Detected by All Sophos products

Action

Please follow the instructions for removing Trojans.

You should also change your Internet Explorer settings using Tools|Internet options|General to remove any modifications made by the Trojan

Windows NT/2000/XP/2003

In Windows NT/2000/XP/2003 you will also need to edit the following registry entry. The removal of this entry is optional in Windows 95/98/Me. Please read the warning about editing the registry.

At the taskbar, click Start|Run. Type 'Regedit' and press Return. The registry editor opens.

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_LOCAL_MACHINE entry:

HKLM\Software\Microsoft\Windows\CurrentVersion\Run\jushed32

and delete it if it exists.

Close the registry editor.

More Information

Troj/Bizten-L is a startpage Trojan.

Troj/Bizten-L copies itself to the Windows folder with the filename
JUSHED32.EXE and may set the following registry entry so as to run itself on
system startup:

HKLM\Software\Microsoft\Windows\CurrentVersion\Run\jushed32

Troj/Bizten-L may not set this registry entry if it determines that processes
relating to any of the following are running:

hijackthis
regedit
msconfig
cwshredder

Troj/Bizten-L attempts to delete the following file:

C:\Documents and Settings\All Users\Start Menu\Programs\Startup\winlogon.exe

Troj/Bizten-L tries to set the following registry values:

HKLM\Software\Microsoft\Internet Explorer\Main\Search Bar
HKLM\Software\Microsoft\Internet Explorer\Main\Start Page
HKLM\Software\Microsoft\Internet Explorer\Main\Search Page
HKLM\Software\Microsoft\Internet Explorer\Main\SearchURL
HKLM\Software\Microsoft\Internet Explorer\Main\Default_Search_URL
HKLM\Software\Microsoft\Internet Explorer\Search\SearchAssistant
HKLM\Software\Microsoft\Internet Explorer\Search\CustomizeSearch
HKLM\Software\Microsoft\Internet Explorer\TypedURLs\url1
HKCU\Software\Microsoft\Internet Explorer\Main\Search Bar
HKCU\Software\Microsoft\Internet Explorer\Main\Start Page
HKCU\Software\Microsoft\Internet Explorer\Main\Search Page
HKCU\Software\Microsoft\Internet Explorer\Main\SearchURL
HKCU\Software\Microsoft\Internet Explorer\Main\Default_Search_URL
HKCU\Software\Microsoft\Internet Explorer\Search\SearchAssistant
HKCU\Software\Microsoft\Internet Explorer\Search\CustomizeSearch
HKCU\Software\Microsoft\Internet Explorer\TypedURLs\url1

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