around April, the W32.Klez virus has been very prominent
and annoying. "This worm searches the Windows address
book, the ICQ database, and local files for email addresses.
The worm sends an email message to these addresses with itself
as an attachment. The worm contains its own SMTP engine and
attempts to guess at available SMTP servers. For example,
if the worm encounters the address firstname.lastname@example.org it will
attempt to send email via the server smtp.abc123.com."
NOTE: "The subject line,
message bodies, and attachment file names are random. The
From address is randomly-chosen from email addresses that
the worm finds on the infected computer." So sometimes
it seems that the mail comes FROM a reputable source e.g.
email@example.com, but this FROM address is inserted by
the virus when it infects an address book containing the email
For more info see: www.symantec.com
(free online scanning)
the problems by simply spending the money on Antivirus software
- the few $$ is worth it.