Sophos

Troj/Miewer-A

Aliases
  • Trojan-Downloader.Win32.Miewer.a
Category
Type
What to do
Prevalence low high

Summary

 
Affected operating systems Windows
Characteristics
  • Installs itself in the registry
Included in our products from May 2005 (3.93)
Protection available since 22 March 2005 21:23:30 (GMT)
Detected by All Sophos products

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\
USB controller
"<path> /startup"

and delete it if it exists.

Close the registry editor.

More Information

Troj/Miewer-A is a downloading Trojan for the Windows platform.

Troj/Miewer-A downloads configuration files from a preconfigured URL. The contents of these files specify additional files to download and install.

Troj/Miewer-A creates the following registry entry to ensure that it is run automatically at logon:

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\
USB controller
"<path> /startup"

(where <path> is the full path to the Trojan executable)

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