This type of worm is embedded in an e-mail attachment, and spreads using the infected computer's e-mailing networks.
Depending on the settings of your F-Secure security product, it will either automatically delete, quarantine or rename the suspect file, or ask you for a desired action.
More information on the scanning and removal options available in your F-Secure product can be found in the Help Center.
You may also refer to the Knowledge Base on the F-Secure Community site for more information.
Email-Worm:W32/Mimail.D is a worm that propagates in infected e-mail attachments.
The worm file is a PE executable 24608 bytes long. It is not compressed.
The worm can also exploit a vulnerability to drop and execute a file. Apart from this, Mimail.D does not have a payload.
Mimail.D was found on 1 November, 2003.
The worm's file installs itself as VIDEODRV.EXE file into Windows directory and creates a startup key for its file in the Registry:
where %windir% is a Windows directory name.
The worm spreads itself in the following message:
Subject: your account Body: Hello there, I would like to inform you about important information regarding your email address. This email address will be expiring. Please read attachment for details. Best regards, Administrator Attachment: message.zip
The attachment contains message.html which, when opened in vulnerable versions of Internet Explorer (IE), will drop an executable named epo.exe and run it.
For more information on the IE MHTML vulnerability used here please see http://www.microsoft.com/technet/security/bulletin/MS03-014.asp