F-Secure updates MS08-067 Conficker Worm Removal Tool
As of January 19th, F-Secure updated it's free cleaning and removal tools offered to the public. If you are using an earlier version, this latest version should be used.
ISTP and F-Downadup Removal Tool
http://www.f-secure.com/weblog/archives/00001588.html
F-Secure decription of Conficker (aka Downadup)
http://www.f-secure.com/v-descs/worm_w32_downadup_gen.shtml
F-Downadup Removal Tool - Download from here
ftp://ftp.f-secure.com/anti-virus/tools/beta/f-downadup.zip
F-Downadup Removal Tool - Instructions
ftp://ftp.f-secure.com/anti-virus/tools/beta/f-downadup.txt
Microsoft Help and Support - Knowledge Base Article 962007
provides numerous details for manual disinfection of Conficker.B (alias Downadup).
http://support.microsoft.com/kb/962007