1. Symantec/
  2. Security Response/
  3. W32.Mimail.J@mm


Risk Level 2: Low

November 17, 2003
February 13, 2007 1:03:51 PM
Also Known As:
W32/Mimail.j@MM [McAfee], WORM_MIMAIL.J [Trend], Win32.Mimail.J [Computer Assoc, W32/Mimail-J [Sophos], I-Worm.Mimail.j [Kaspersky]
Systems Affected:

Due to a decreased rate of submissions, Symantec Security Response has downgraded this threat to a Category 2 rating as of January 6, 2004.

W32.Mimail.J@mm is a mass-mailing worm that attempts to steal personal information. This worm displays a series of forms that ask users to enter their credit card information. (See the "Technical Details" for illustrations.) This information is saved and later emailed to several predetermined email addresses.

This worm is similar to W32.Mimail.I@mm.

The email has the following characteristics:

From: Do_Not_Reply@paypal.com
Subject: IMPORTANT  <random string of characters>
Attachment: InfoUpdate.exe -or-

Note: Virus definitions dated November 17, 2003, rev 21 (20031117.021), or greater are required to detect this threat.

Antivirus Protection Dates

  • Initial Rapid Release version November 17, 2003
  • Latest Rapid Release version May 31, 2016 revision 036
  • Initial Daily Certified version November 17, 2003
  • Latest Daily Certified version June 1, 2016 revision 005
  • Initial Weekly Certified release date November 17, 2003
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.
Writeup By: Maryl Magee

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STAR Antimalware Protection Technologies
2016 Internet Security Threat Report, Volume 21
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