Worm.SCO.A - Is this a known virus?

I received this message today:

A virus was found in an Email message you sent.
This Email scanner intercepted it and stopped the entire message
reaching its destination.

The virus was reported to be: Worm.SCO.A

Is this a known virus? A search of the forum reveals nil.

Thanks,
Ron

SCO.A is yet-another name for MyDoom.
These mail notifications just don’t make any sense because the virus actually forges sender’s address - so if avast doesn’t find any virus on your computer, you’re clean…

Much obliged VLK - I’m impressed with your quick response!
Regards,
Ron

The open source virus scanner ClamAV, installed on many email gateways, picks it up as Worm.SCO.A. It also detects the new “B” variant as Worm.SCO.A.