What to do if the message Virus Alert Information: Frethem virus appears?

Virus Alert Information: Frethem virus.

These are mass-mailer worms that will infect the computer system simply by opening or previewing the infected e-mail. This mass-mailing worm gathers e-mail addresses from Microsoft® Windows® Address Book (WAB) and in files with extension .DBX, .MBX, .EML, and .MDB. The worm will use its own SMTP engine to send itself to the recipients found.

The e-mail message arrives with the following characteristics:
**********************************************
Subject: Re: Your Password!
Message: ATTENTION!

You can access
very important
information by
this password

DO NOT SAVE
password to disk
use your mind

now press
cancel

Attachments:
Decrypt-password.exe
Password.txt
**********************************************

For more information and countermeasures, please refer to the following solution in Microsoft®'s technical support website.
Article ID: Q326353
Last Reviewed: July 22, 2002
Title: Virus Alert About the "Frethem" Virus.

For additional information about viruses, visit the following third-party Web sites:
Network Associates: Virus Information Library - W32/Frethem.o@MM.

Symantec Corporation:
1. W32.Frethem.j@mm
2. W32.Frethem.k@mm
3. W32.Frethem.m@mm

Trend Micro: Virus Encyclopedia - WORM_FRETHEM.K.