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  3. W32.Changeup.B


Risk Level 1: Very Low

February 10, 2010
February 11, 2010 8:44:37 AM
Infection Length:
Systems Affected:
Windows 2000, Windows 7, Windows 95, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows Server 2008, Windows Vista, Windows XP
W32.Changeup.B is a worm that spreads by copying itself to removable drives. It also attempts to download files on to the compromised computer.

Other resources
For more information, please see the following resource:

Antivirus Protection Dates

  • Initial Rapid Release version February 11, 2010 revision 001
  • Latest Rapid Release version February 19, 2013 revision 016
  • Initial Daily Certified version February 11, 2010 revision 002
  • Latest Daily Certified version April 26, 2010 revision 003
  • Initial Weekly Certified release date February 17, 2010
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.

Threat Assessment


  • Wild Level: Low
  • Number of Infections: 0 - 49
  • Number of Sites: 0 - 2
  • Geographical Distribution: Low
  • Threat Containment: Easy
  • Removal: Easy


  • Damage Level: Low
  • Payload: Downloads files


  • Distribution Level: Low
  • Shared Drives: Copies itself to removable drives
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: Hiroshi Shinotsuka

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