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  3. W32.FBound.gen@mm


Risk Level 2: Low

March 14, 2002
February 13, 2007 11:38:32 AM
Also Known As:
W32.Impo.gen@mm, W32.Dotjaypee@mm, Win32/Japanize.Worm [CA], I-Worm.Zircon.B [AVP], Win32.Fbound.C [CA], W32/Fbound.c@MM [McAfee], W32/FBound-C [Sophos], WORM_FBOUND.A [Trend]
Systems Affected:
Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows XP

This is a mass-mailing worm that uses the infected computer's SMTP server to send itself to all addresses in the Windows address book. It contains no payload. The email arrives with an attachment named Patch.exe. For addresses ending in .jp (Japan), there are 17 Japanese language subjects, one of which is randomly chosen each time.

NOTE: Definitions dated prior to March 14, 2002 may detect this worm as W32.Dotjaypee@mm.

Antivirus Protection Dates

  • Initial Rapid Release version March 14, 2002
  • Latest Rapid Release version September 28, 2010 revision 054
  • Initial Daily Certified version March 14, 2002
  • Latest Daily Certified version September 28, 2010 revision 036
  • Initial Weekly Certified release date March 14, 2002
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.

Threat Assessment


  • Wild Level: Low
  • Number of Infections: More than 1000
  • Number of Sites: More than 10
  • Geographical Distribution: Medium
  • Threat Containment: Easy
  • Removal: Easy


  • Damage Level: Low


  • Distribution Level: High
Note: On May 14, 2015, modifications will be made to the threat write-ups to streamline the content. The Threat Assessment section will no longer be published as this section is no longer relevant to today's threat landscape. The Risk Level will continue to be the main threat risk assessment indicator.
Writeup By: Peter Ferrie

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