Quite a nasty little
email virus that I managed to recieve and pass on, detailed information is available from http://www.symantec.com/avcenter/venc/data/wscript.kakworm.html . As with most
email viruses, it only affects
Microsoft Outlook and
Outlook Express users under
Windows. But that's a great deal of victims.
The virus is written in a Windows Scripting format, and is readily visible if you view source, as it attaches itself to your signature.
I only realised I had it when a friend warned me about it when I sent it to him!