Summary

Summary
Action
More Information
| Affected operating systems | Windows |
|---|---|
| Characteristics |
|
| Protection available since | 15 June 2005 13:17:34 (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

Summary
Action
More Information
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
Antivirus Installer
<pathname of the Trojan executable>
and delete it if it exists.
Close the registry editor.
More Information
Troj/Badgent-A is a Trojan for the Windows platform.
Troj/Badgent-A will alter the security settings of Internet Explorer. The Trojan will then periodically attempt to open a web page with the browser.
The following registry entry is created to run Troj/Badgent-A on startup:
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
Antivirus Installer
<pathname of the Trojan executable>
Troj/Badgent-A will modify registry entries under the following branch, affecting internet security:
HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3
Troj/Badgent-A will drop and run two additional executable files.

