11/23: Yanz-B Worm Written in MSVC
November 23, 2004

W32/Yanz.b@mm is a mass-mailing worm written in MSVC that contains its own SMTP engine to construct outgoing messages.

The virus arrives in an email message as follows:

From: (Spoofed email sender)
Do not assume that the sender address is an indication that the sender is infected. Additionally you may receive alert messages from a mail server that you are infected, which may not be the case.

More information can be found at McAfee page.