This type of worm is embedded in an email attachment, and spreads using the infected computer's emailing networks.
Based on the settings of your F-Secure security product, it will either move the file to the quarantine where it cannot spread or cause harm, or remove it.
Email-Worm:W32/Mimail.D is a worm that propagates in infected email 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
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