Sophos

Troj/Ranck-BI

Category
Type
What to do
Prevalence low high

Summary

 
Affected operating systems Windows
Characteristics
  • Installs itself in the registry
Protection available since 13 December 2004 10:10:03 (GMT)
Last updated 17 March 2005 04:12:30 (GMT)
Detected by All Sophos products
  • Free virus, spyware, and adware scan
  • Test your existing anti-virus protection
  • Find threats your anti-virus missed

Action

Please follow the instructions for removing Trojans.

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\MSSGisg

and delete it if it exists.

Close the registry editor.

More Information

Troj/Ranck-BI is a proxy Trojan that allows a remote intruder to route HTTP traffic through the computer.

Troj/Ranck-BI sets the following registry entry to run itself on system startup:

HKLM\Software\Microsoft\Windows\CurrentVersion\Run\MSSGisg

Sophos's anti-virus products include proactive protection technology, which can defend against new threats without requiring an update. Sophos customers have been protected against Troj/Ranck-BI (detected as Troj/Ranck-Fam/Gen) since version 3.85.

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